https://wiki.nottinghack.org.uk/api.php?action=feedcontributions&user=Chunky&feedformat=atomNottinghack Wiki - User contributions [en]2024-03-29T10:00:05ZUser contributionsMediaWiki 1.35.1https://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24571Laser Cut COVID-19 PPE2020-03-31T13:25:41Z<p>Chunky: /* Laser Cut Face Shields with Acetate Sheet Front */</p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home. We must ensure that '''no risks at all''' are taken.<br />
<br />
We must ensure as much as possible that the PPE/parts come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household COVID-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with [https://www.kitronik.co.uk/ Kitronik] and [https://smokeandmirrors.store/ Smoke & Mirrors] to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/short-url/ofliYgbbBNmnlwaVAKPaW904Lf6.dxf Covid 19 Facemask - V0.5.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.5 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW<br />
<br />
[https://github.com/re-innovation/Face_Visor_PPE This is also being hosted on this github repository]<br />
<br />
[[File:Faceshield_1.jpg|center|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet, 0.5mm thickness, any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover - 100 to 200 micron thickness seems to be best (''Note: This will '''NOT''' be laser cut - use the hole punch'')<br />
*4. Hole punch with slider for A6 holes.<br />
*5. Clean hands and a way to bag you shields.<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|center|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|center|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC '''DOES NOT''' need to be laser cut. Use a standard 2 hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 22, Speed 70 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
----<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''How is this design used in practice?''<br><br />
A. The visors alrady used by the NHS are one-use only. They are used typically used by one member of staff for a day/session. We envisage that these will be used as required by the healthcare worker for their job (potentially for one job or for one day) and will then be thrown away.<br />
<br />
Q. ''Length of visor shield?''<br><br />
A. This design uses a standard sheet of A4 clear plastic as a front shield. This works for most people. This can be cut to length as required by the person wearing it.<br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of material?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater than 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. ''Who are you liaising with?'' <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. ''Do they actually want this stuff?'' <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. ''Should I make shields if no one has said they want them in my area?''<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br><br />
<br />
==Other groups working on similar items==<br />
<br />
We are looking for maufacture and supply locally to Nottingham, UK. <br />
<br />
There are lots of other people working on similar ideas and useful projects. Some are linked here for info:<br />
<br />
* [https://github.com/DoESLiverpool/covid19 DoES Liverpool, UK]<br />
* [https://coronavirustechhandbook.com/home Corona Virus Tech Handbook]<br />
* [https://getusppe.org/ Get Us PPE - US site]<br />
* [https://makezine.com/2020/03/22/whats-plan-c-for-covid-19/ Make Magazine round up of projects]<br />
* [https://www.helpfulengineering.org/ Helpful Engineering - Review of projects] (suggest PPE is most suitable for makers)<br />
* [https://www.3dcrowd.uk/ 3D Crowd for 3D printed masks]</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24570Laser Cut COVID-19 PPE2020-03-31T13:24:09Z<p>Chunky: /* Laser Cut Face Shields with Acetate Sheet Front */</p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home. We must ensure that '''no risks at all''' are taken.<br />
<br />
We must ensure as much as possible that the PPE/parts come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household COVID-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with [https://www.kitronik.co.uk/ Kitronik] and [https://smokeandmirrors.store/ Smoke & Mirrors] to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/short-url/ofliYgbbBNmnlwaVAKPaW904Lf6.dxf Covid 19 Facemask - V0.5.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.5 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|center|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet, 0.5mm thickness, any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover - 100 to 200 micron thickness seems to be best (''Note: This will '''NOT''' be laser cut - use the hole punch'')<br />
*4. Hole punch with slider for A6 holes.<br />
*5. Clean hands and a way to bag you shields.<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|center|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|center|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC '''DOES NOT''' need to be laser cut. Use a standard 2 hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 22, Speed 70 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
----<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''How is this design used in practice?''<br><br />
A. The visors alrady used by the NHS are one-use only. They are used typically used by one member of staff for a day/session. We envisage that these will be used as required by the healthcare worker for their job (potentially for one job or for one day) and will then be thrown away.<br />
<br />
Q. ''Length of visor shield?''<br><br />
A. This design uses a standard sheet of A4 clear plastic as a front shield. This works for most people. This can be cut to length as required by the person wearing it.<br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of material?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater than 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. ''Who are you liaising with?'' <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. ''Do they actually want this stuff?'' <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. ''Should I make shields if no one has said they want them in my area?''<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br><br />
<br />
==Other groups working on similar items==<br />
<br />
We are looking for maufacture and supply locally to Nottingham, UK. <br />
<br />
There are lots of other people working on similar ideas and useful projects. Some are linked here for info:<br />
<br />
* [https://github.com/DoESLiverpool/covid19 DoES Liverpool, UK]<br />
* [https://coronavirustechhandbook.com/home Corona Virus Tech Handbook]<br />
* [https://getusppe.org/ Get Us PPE - US site]<br />
* [https://makezine.com/2020/03/22/whats-plan-c-for-covid-19/ Make Magazine round up of projects]<br />
* [https://www.helpfulengineering.org/ Helpful Engineering - Review of projects] (suggest PPE is most suitable for makers)<br />
* [https://www.3dcrowd.uk/ 3D Crowd for 3D printed masks]</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=3D_Printed_COVID-19_PPE&diff=245593D Printed COVID-19 PPE2020-03-29T13:45:25Z<p>Chunky: /* Delivery */</p>
<hr />
<div>This page summarises the effort by members to produce and supply personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
'''NOTE: THIS PAGE HAS BEEN FILLED BASED ON CONVERSATIONS ON THE SLACK CHANNEL AND HAS YET TO BE REVIEWED, PLEASE DO NOT TAKE IT AS A SOURCE OF AUTHORITY.'''<br />
<br />
The Slack channel <code>#covid-19-ppe</code> is being used for discussion. The channel is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort.<br />
<br />
If you are able to produce face shields, please log what you can on [http://bit.ly/NottsRC2 this sheet]. The sheet will also be used for organising the collection effort.<br />
<br />
We are trying to coordiante effors for producing visors. We are trying to work to just two standard designs - one 3D printed and one laser cut. We will update this page with both designs once confirmed.<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
Please do NOT travel in order to make these unless totally safe to do so.<br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves, if at all possible. <br />
<br />
Some notes for hygienic packing are given below. <br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing.<br />
<br />
mgoodwin is part of the co-ordination of the shield making locally, and also someone from TechNotts.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Co-ordination for a similar shield as the 3D printed version, using a laser cut polypropylene hand band. <br />
More information at [[LaserCutCOVID-19_PPE]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
The designs we are primarily working with are as follows:<br />
<br />
====[https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and A4 Binding Sheet Face Shield]====<br />
We have successful prints of this already. Our contact at the NHS has asked specifically for this design. <br />
<br />
Members are currently printing 3 different versions of this headband. '''Please make the first version if you can''' otherwise try the other two versions (if your printer does not print the first very well).<br />
<br />
{| class="wikitable"<br />
|-<br />
! Design / File<br />
! Approx. Print time<br />
! Approx. Filament used<br />
! Image<br />
! Details<br />
|-<br />
| [https://media.prusaprinters.org/media/prints/26241/stls/268557_6b14e5f8-3397-4552-8ffa-d34047b0cb03/most-optimal-rc3.stl#_ga=2.177542885.1550124073.1585145144-1280391435.1585145144 The original design] || 60 - 90 Minutes || 10g ||<br />
[[File:Original design.jpg|thumb]]<br />
|| This is the original design of the A4 Binding Sheet Face Shield and is the version which we have originally been asked to produce, and is therefore the preferred version. <br />
'''If your 3d printer is capable of printing this version quickly and reliably then please use this version.'''<br />
|-<br />
| [https://wiki.nottinghack.org.uk/wiki/File:Face_Shield_v1_0_2.zip The adapted design] || 60 - 90 Minutes || 10g || <br />
[[File:Adapted design.jpg|thumb|Adapted design]]<br />
|| This design is the same as the above with two very small but important changes: the walls are double the thickness and the hexagonal holes have been removed. <br />
This design will print well on lower quality, less functional 3d printers.<br />
|-<br />
|[https://wiki.nottinghack.org.uk/wiki/File:Face_Shield_-_Adjusted_Design.zip The altered design]|| 30 -45 minutes || 12g || <br />
[[File:Altered design.jpg|thumb|Altered design]]<br />
|| Whilst this design will maintain the same face to screen clearance and utilises the same punched acetates, it is significantly different from the original design. The walls are significantly thicker and the overall height of the band is considerably lower. 3D printers will be much more forgiving with this design (resulting in less failures) and will be able to print this version much quicker. <br />
If your machine has had difficulty in printing the above two designs then please use this design. <br />
If you have a well calibrated machine you may want to attempt printing this version at your machines highest speed to increase your output.<br />
<br />
|}<br />
<br />
====[https://www.prusaprinters.org/prints/26883-fast-face-shield Fast Face Shield]====<br />
<br />
=== Headbands ===<br />
<br />
PETG filament is being recommended for the headbands because it is more likely to survive autoclaving, but at the moment we are expecting (based on information from DrGandalf) that these masks will be going to clinics, not hospitals, and will therefore not be going through autoclaves. Instead they will be wiped clean, so PLA is also fine for printing the head bands.<br />
<br />
It may be better to laser cut headbands where possible, due to the tendency for FDM prints to produce surfaces that can harbour bacteria. More investigation and research is needed into making headbands on a laser cutter.<br />
<br />
Regarding the FDM surface issue, at the moment we are working on the principle of something being better than nothing. We are still waiting on an official directive from infection control as to what materials and approaches are approved.<br />
<br />
=== Visors ===<br />
<br />
Visors can be made from A4 transparencies, as per the first design above. They can be acquired from Amazon:<br />
<br />
* https://www.amazon.co.uk/dp/B000YC2UTS/<br />
* https://www.amazon.co.uk/dp/B000W4IZN8/<br />
<br />
Dominic Morrow has purchased some of these. We will know more about their suitability and properties when they arrive.<br />
<br />
The hole punch must be a '''2 hole''' punch set to '''A6''' size. The holes are then punched from each side of the A4 clear binder cover/transparency. This is shown in the image here:<br />
<br />
[[File:Hole punch instructions.png|center|400px|Instructions for hole punching]]<br />
<br />
== Packaging ==<br />
<br />
Advice from NUH contact regarding the official NHS masks: '"we can't autoclave the OFFICIAL shields we get because they have foam parts, they have to go in the bin" and that "the ones we get from the NHS centrally turn up in boxes, not bags, they're not clinically clean. They DO have a bit of film over them, like a racing drivers visor, but that's just to stop stretches in transit. What you're making as long as you take basic precautions, will work well for us at this time."'<br />
<br />
On that basis, we are assuming that provided the masks are produced in conditions where there is no known risk of COVID-19 (i.e. none of the conditions for self-quarenteen are met) and the masks and materials are handled with clean hands then they may be delivered without any special cleaning or packaging.<br />
<br />
== Safety Concerns ==<br />
<br />
Please do not compromise your own safety, or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
FDM prints leave a lot of small microscopic holes in the surface, which can harbour bacteria. While not much can be done about this, and it isn't ideal, we have been told that it's currently a case of "anything is better than nothing", and that cleaning will be rigorous. For now it is probably a good idea to try to seal the surface of FDM prints with a surface sealer, epoxy, or with a flame if those aren't available. Laser cutting may be a better option but, again, FDM prints are better than nothing.<br />
<br />
== Delivery ==<br />
<br />
Locations known to have an interest include:<br />
* Bulwell Riverside<br />
* St Anns Wells Health Centre<br />
* Mary Potter Health Centre<br />
* Clifton Conerstone<br />
* NCGPA at Upper Parliament St.<br />
* Nottingham University Hospital<br />
<br />
'' '''NOTE''' that we are still lacking details on how best and when to deliver to these locations. If you find specific information on their level of need and preferred delivery method then please add this to the Wiki.''<br />
<br />
There may be a pick-up arrangements too, TBA.<br />
<br />
== Important Slack Messages ==<br />
<br />
The following messages were copied from Slack, as they contain particularly helpful information:<br />
<br />
:'''[https://nottinghack.slack.com/archives/C010BT8CALA/p1585162815198800 geoff hampson (2020-03-25 7:00PM)]''': My opinion for what it is worth is if we want to be able to manufacture these in the quantities that are going to be required then it needs to be laser cut. Even with lots of people 3D printing parts the capability just won't be there. The laser cut version looks ok, but I think with a big bed some parts could be combined and I think with the right design the parts could slot together eliminating the need for the plastic rivets. What will also be essential in production is processes to ensure that the parts aren't contaminated otherwise the finished items won't be able to be used for days. We can't risk ppe being supplied with Coronavirus on it.<br />
<br />
<hr /><br />
<br />
:'''[https://nottinghack.slack.com/archives/C010BT8CALA/p1585168152216000 DrGandalf (2002-03-25 8:29PM)]''': Hi all. Sorry missed the zoom. In one day have learnt the power and challenge of using Slack, negotiating in the NHS infrastructure and the amazing work our community can do.<br />
:I'll try and summarise from what I know so far and then I'll answer what I can from the medical perspective.<br />
:1. We will need as many visors as we can get.<br />
:2. Because of repeatedly pushing this - hopeful that the universities are able to join in and produce in a large scale.<br />
:3. Your willingness and contributions have blown me away.<br />
:4. I am trying to sort logistics re bands and visors with @Dominic Morrow, @mgoodwin and others.<br />
:5. Re not being medical grade-so far the answer is we need them and better than nothing. If genuine concerns will be single use but more likely one clinician per day.<br />
:6. Regarding the plastic sheet version I am trying to get a better idea from infection control but this will take a day or two unfortunately - bureaucracy still exists.<br />
:7. My next plan is to focus on logistics given you are all in lockdown for collection. Hoping we can arrange a collection service for distribution to ensure your work is used by NHS and social care and not misusing your support. For this reason if you have made anything please use this spreadsheet bit.ly/NottsRC2</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=3D_Printed_COVID-19_PPE&diff=245583D Printed COVID-19 PPE2020-03-29T13:44:45Z<p>Chunky: /* A4 Binding Sheet Face Shield */</p>
<hr />
<div>This page summarises the effort by members to produce and supply personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
'''NOTE: THIS PAGE HAS BEEN FILLED BASED ON CONVERSATIONS ON THE SLACK CHANNEL AND HAS YET TO BE REVIEWED, PLEASE DO NOT TAKE IT AS A SOURCE OF AUTHORITY.'''<br />
<br />
The Slack channel <code>#covid-19-ppe</code> is being used for discussion. The channel is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort.<br />
<br />
If you are able to produce face shields, please log what you can on [http://bit.ly/NottsRC2 this sheet]. The sheet will also be used for organising the collection effort.<br />
<br />
We are trying to coordiante effors for producing visors. We are trying to work to just two standard designs - one 3D printed and one laser cut. We will update this page with both designs once confirmed.<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
Please do NOT travel in order to make these unless totally safe to do so.<br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves, if at all possible. <br />
<br />
Some notes for hygienic packing are given below. <br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing.<br />
<br />
mgoodwin is part of the co-ordination of the shield making locally, and also someone from TechNotts.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Co-ordination for a similar shield as the 3D printed version, using a laser cut polypropylene hand band. <br />
More information at [[LaserCutCOVID-19_PPE]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
The designs we are primarily working with are as follows:<br />
<br />
====[https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and A4 Binding Sheet Face Shield]====<br />
We have successful prints of this already. Our contact at the NHS has asked specifically for this design. <br />
<br />
Members are currently printing 3 different versions of this headband. '''Please make the first version if you can''' otherwise try the other two versions (if your printer does not print the first very well).<br />
<br />
{| class="wikitable"<br />
|-<br />
! Design / File<br />
! Approx. Print time<br />
! Approx. Filament used<br />
! Image<br />
! Details<br />
|-<br />
| [https://media.prusaprinters.org/media/prints/26241/stls/268557_6b14e5f8-3397-4552-8ffa-d34047b0cb03/most-optimal-rc3.stl#_ga=2.177542885.1550124073.1585145144-1280391435.1585145144 The original design] || 60 - 90 Minutes || 10g ||<br />
[[File:Original design.jpg|thumb]]<br />
|| This is the original design of the A4 Binding Sheet Face Shield and is the version which we have originally been asked to produce, and is therefore the preferred version. <br />
'''If your 3d printer is capable of printing this version quickly and reliably then please use this version.'''<br />
|-<br />
| [https://wiki.nottinghack.org.uk/wiki/File:Face_Shield_v1_0_2.zip The adapted design] || 60 - 90 Minutes || 10g || <br />
[[File:Adapted design.jpg|thumb|Adapted design]]<br />
|| This design is the same as the above with two very small but important changes: the walls are double the thickness and the hexagonal holes have been removed. <br />
This design will print well on lower quality, less functional 3d printers.<br />
|-<br />
|[https://wiki.nottinghack.org.uk/wiki/File:Face_Shield_-_Adjusted_Design.zip The altered design]|| 30 -45 minutes || 12g || <br />
[[File:Altered design.jpg|thumb|Altered design]]<br />
|| Whilst this design will maintain the same face to screen clearance and utilises the same punched acetates, it is significantly different from the original design. The walls are significantly thicker and the overall height of the band is considerably lower. 3D printers will be much more forgiving with this design (resulting in less failures) and will be able to print this version much quicker. <br />
If your machine has had difficulty in printing the above two designs then please use this design. <br />
If you have a well calibrated machine you may want to attempt printing this version at your machines highest speed to increase your output.<br />
<br />
|}<br />
<br />
====[https://www.prusaprinters.org/prints/26883-fast-face-shield Fast Face Shield]====<br />
<br />
=== Headbands ===<br />
<br />
PETG filament is being recommended for the headbands because it is more likely to survive autoclaving, but at the moment we are expecting (based on information from DrGandalf) that these masks will be going to clinics, not hospitals, and will therefore not be going through autoclaves. Instead they will be wiped clean, so PLA is also fine for printing the head bands.<br />
<br />
It may be better to laser cut headbands where possible, due to the tendency for FDM prints to produce surfaces that can harbour bacteria. More investigation and research is needed into making headbands on a laser cutter.<br />
<br />
Regarding the FDM surface issue, at the moment we are working on the principle of something being better than nothing. We are still waiting on an official directive from infection control as to what materials and approaches are approved.<br />
<br />
=== Visors ===<br />
<br />
Visors can be made from A4 transparencies, as per the first design above. They can be acquired from Amazon:<br />
<br />
* https://www.amazon.co.uk/dp/B000YC2UTS/<br />
* https://www.amazon.co.uk/dp/B000W4IZN8/<br />
<br />
Dominic Morrow has purchased some of these. We will know more about their suitability and properties when they arrive.<br />
<br />
The hole punch must be a '''2 hole''' punch set to '''A6''' size. The holes are then punched from each side of the A4 clear binder cover/transparency. This is shown in the image here:<br />
<br />
[[File:Hole punch instructions.png|center|400px|Instructions for hole punching]]<br />
<br />
== Packaging ==<br />
<br />
Advice from NUH contact regarding the official NHS masks: '"we can't autoclave the OFFICIAL shields we get because they have foam parts, they have to go in the bin" and that "the ones we get from the NHS centrally turn up in boxes, not bags, they're not clinically clean. They DO have a bit of film over them, like a racing drivers visor, but that's just to stop stretches in transit. What you're making as long as you take basic precautions, will work well for us at this time."'<br />
<br />
On that basis, we are assuming that provided the masks are produced in conditions where there is no known risk of COVID-19 (i.e. none of the conditions for self-quarenteen are met) and the masks and materials are handled with clean hands then they may be delivered without any special cleaning or packaging.<br />
<br />
== Safety Concerns ==<br />
<br />
Please do not compromise your own safety, or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
FDM prints leave a lot of small microscopic holes in the surface, which can harbour bacteria. While not much can be done about this, and it isn't ideal, we have been told that it's currently a case of "anything is better than nothing", and that cleaning will be rigorous. For now it is probably a good idea to try to seal the surface of FDM prints with a surface sealer, epoxy, or with a flame if those aren't available. Laser cutting may be a better option but, again, FDM prints are better than nothing.<br />
<br />
== Delivery ==<br />
<br />
Locations known to have an interest include:<br />
* Bulwell Riverside<br />
* St Anns Wells Health Centre<br />
* Mary Potter Health Centre<br />
* Clifton Conerstone<br />
* NCGPA at Upper Parliament St.<br />
* Nottingham University Hospital<br />
<br />
NOTE that we are still lacking details on how best and when to deliver to these locations. If you find specific information on their level of need and preferred delivery method then please add this to the Wiki.<br />
<br />
There may be a pick-up arrangements too, TBA.<br />
<br />
== Important Slack Messages ==<br />
<br />
The following messages were copied from Slack, as they contain particularly helpful information:<br />
<br />
:'''[https://nottinghack.slack.com/archives/C010BT8CALA/p1585162815198800 geoff hampson (2020-03-25 7:00PM)]''': My opinion for what it is worth is if we want to be able to manufacture these in the quantities that are going to be required then it needs to be laser cut. Even with lots of people 3D printing parts the capability just won't be there. The laser cut version looks ok, but I think with a big bed some parts could be combined and I think with the right design the parts could slot together eliminating the need for the plastic rivets. What will also be essential in production is processes to ensure that the parts aren't contaminated otherwise the finished items won't be able to be used for days. We can't risk ppe being supplied with Coronavirus on it.<br />
<br />
<hr /><br />
<br />
:'''[https://nottinghack.slack.com/archives/C010BT8CALA/p1585168152216000 DrGandalf (2002-03-25 8:29PM)]''': Hi all. Sorry missed the zoom. In one day have learnt the power and challenge of using Slack, negotiating in the NHS infrastructure and the amazing work our community can do.<br />
:I'll try and summarise from what I know so far and then I'll answer what I can from the medical perspective.<br />
:1. We will need as many visors as we can get.<br />
:2. Because of repeatedly pushing this - hopeful that the universities are able to join in and produce in a large scale.<br />
:3. Your willingness and contributions have blown me away.<br />
:4. I am trying to sort logistics re bands and visors with @Dominic Morrow, @mgoodwin and others.<br />
:5. Re not being medical grade-so far the answer is we need them and better than nothing. If genuine concerns will be single use but more likely one clinician per day.<br />
:6. Regarding the plastic sheet version I am trying to get a better idea from infection control but this will take a day or two unfortunately - bureaucracy still exists.<br />
:7. My next plan is to focus on logistics given you are all in lockdown for collection. Hoping we can arrange a collection service for distribution to ensure your work is used by NHS and social care and not misusing your support. For this reason if you have made anything please use this spreadsheet bit.ly/NottsRC2</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=3D_Printed_COVID-19_PPE&diff=245573D Printed COVID-19 PPE2020-03-29T13:41:58Z<p>Chunky: /* A4 Binding Sheet Face Shield */</p>
<hr />
<div>This page summarises the effort by members to produce and supply personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
'''NOTE: THIS PAGE HAS BEEN FILLED BASED ON CONVERSATIONS ON THE SLACK CHANNEL AND HAS YET TO BE REVIEWED, PLEASE DO NOT TAKE IT AS A SOURCE OF AUTHORITY.'''<br />
<br />
The Slack channel <code>#covid-19-ppe</code> is being used for discussion. The channel is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort.<br />
<br />
If you are able to produce face shields, please log what you can on [http://bit.ly/NottsRC2 this sheet]. The sheet will also be used for organising the collection effort.<br />
<br />
We are trying to coordiante effors for producing visors. We are trying to work to just two standard designs - one 3D printed and one laser cut. We will update this page with both designs once confirmed.<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
Please do NOT travel in order to make these unless totally safe to do so.<br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves, if at all possible. <br />
<br />
Some notes for hygienic packing are given below. <br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing.<br />
<br />
mgoodwin is part of the co-ordination of the shield making locally, and also someone from TechNotts.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Co-ordination for a similar shield as the 3D printed version, using a laser cut polypropylene hand band. <br />
More information at [[LaserCutCOVID-19_PPE]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
The designs we are primarily working with are as follows:<br />
<br />
====[https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and A4 Binding Sheet Face Shield]====<br />
We have successful prints of this already. Our contact at the NHS has asked specifically for this design. <br />
<br />
Members are currently printing 3 different versions of this headband. '''Please make the first version if you can''' otherwise try the other two versions (if your printer does not print this very well).<br />
<br />
{| class="wikitable"<br />
|-<br />
! Design / File<br />
! Approx. Print time<br />
! Approx. Filament used<br />
! Image<br />
! Details<br />
|-<br />
| [https://media.prusaprinters.org/media/prints/26241/stls/268557_6b14e5f8-3397-4552-8ffa-d34047b0cb03/most-optimal-rc3.stl#_ga=2.177542885.1550124073.1585145144-1280391435.1585145144 The original design] || 60 - 90 Minutes || 10g ||<br />
[[File:Original design.jpg|thumb]]<br />
|| This is the original design of the A4 Binding Sheet Face Shield and is the version which we have originally been asked to produce, and is therefore the preferred version. <br />
'''If your 3d printer is capable of printing this version quickly and reliably then please use this version.'''<br />
|-<br />
| [https://wiki.nottinghack.org.uk/wiki/File:Face_Shield_v1_0_2.zip The adapted design] || 60 - 90 Minutes || 10g || <br />
[[File:Adapted design.jpg|thumb|Adapted design]]<br />
|| This design is the same as the above with two very small but important changes: the walls are double the thickness and the hexagonal holes have been removed. <br />
This design will print well on lower quality, less functional 3d printers.<br />
|-<br />
|[https://wiki.nottinghack.org.uk/wiki/File:Face_Shield_-_Adjusted_Design.zip The altered design]|| 30 -45 minutes || 12g || <br />
[[File:Altered design.jpg|thumb|Altered design]]<br />
|| Whilst this design will maintain the same face to screen clearance and utilises the same punched acetates, it is significantly different from the original design. The walls are significantly thicker and the overall height of the band is considerably lower. 3D printers will be much more forgiving with this design (resulting in less failures) and will be able to print this version much quicker. <br />
If your machine has had difficulty in printing the above two designs then please use this design. <br />
If you have a well calibrated machine you may want to attempt printing this version at your machines highest speed to increase your output.<br />
<br />
|}<br />
<br />
====[https://www.prusaprinters.org/prints/26883-fast-face-shield Fast Face Shield]====<br />
<br />
=== Headbands ===<br />
<br />
PETG filament is being recommended for the headbands because it is more likely to survive autoclaving, but at the moment we are expecting (based on information from DrGandalf) that these masks will be going to clinics, not hospitals, and will therefore not be going through autoclaves. Instead they will be wiped clean, so PLA is also fine for printing the head bands.<br />
<br />
It may be better to laser cut headbands where possible, due to the tendency for FDM prints to produce surfaces that can harbour bacteria. More investigation and research is needed into making headbands on a laser cutter.<br />
<br />
Regarding the FDM surface issue, at the moment we are working on the principle of something being better than nothing. We are still waiting on an official directive from infection control as to what materials and approaches are approved.<br />
<br />
=== Visors ===<br />
<br />
Visors can be made from A4 transparencies, as per the first design above. They can be acquired from Amazon:<br />
<br />
* https://www.amazon.co.uk/dp/B000YC2UTS/<br />
* https://www.amazon.co.uk/dp/B000W4IZN8/<br />
<br />
Dominic Morrow has purchased some of these. We will know more about their suitability and properties when they arrive.<br />
<br />
The hole punch must be a '''2 hole''' punch set to '''A6''' size. The holes are then punched from each side of the A4 clear binder cover/transparency. This is shown in the image here:<br />
<br />
[[File:Hole punch instructions.png|center|400px|Instructions for hole punching]]<br />
<br />
== Packaging ==<br />
<br />
Advice from NUH contact regarding the official NHS masks: '"we can't autoclave the OFFICIAL shields we get because they have foam parts, they have to go in the bin" and that "the ones we get from the NHS centrally turn up in boxes, not bags, they're not clinically clean. They DO have a bit of film over them, like a racing drivers visor, but that's just to stop stretches in transit. What you're making as long as you take basic precautions, will work well for us at this time."'<br />
<br />
On that basis, we are assuming that provided the masks are produced in conditions where there is no known risk of COVID-19 (i.e. none of the conditions for self-quarenteen are met) and the masks and materials are handled with clean hands then they may be delivered without any special cleaning or packaging.<br />
<br />
== Safety Concerns ==<br />
<br />
Please do not compromise your own safety, or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
FDM prints leave a lot of small microscopic holes in the surface, which can harbour bacteria. While not much can be done about this, and it isn't ideal, we have been told that it's currently a case of "anything is better than nothing", and that cleaning will be rigorous. For now it is probably a good idea to try to seal the surface of FDM prints with a surface sealer, epoxy, or with a flame if those aren't available. Laser cutting may be a better option but, again, FDM prints are better than nothing.<br />
<br />
== Delivery ==<br />
<br />
Locations known to have an interest include:<br />
* Bulwell Riverside<br />
* St Anns Wells Health Centre<br />
* Mary Potter Health Centre<br />
* Clifton Conerstone<br />
* NCGPA at Upper Parliament St.<br />
* Nottingham University Hospital<br />
<br />
NOTE that we are still lacking details on how best and when to deliver to these locations. If you find specific information on their level of need and preferred delivery method then please add this to the Wiki.<br />
<br />
There may be a pick-up arrangements too, TBA.<br />
<br />
== Important Slack Messages ==<br />
<br />
The following messages were copied from Slack, as they contain particularly helpful information:<br />
<br />
:'''[https://nottinghack.slack.com/archives/C010BT8CALA/p1585162815198800 geoff hampson (2020-03-25 7:00PM)]''': My opinion for what it is worth is if we want to be able to manufacture these in the quantities that are going to be required then it needs to be laser cut. Even with lots of people 3D printing parts the capability just won't be there. The laser cut version looks ok, but I think with a big bed some parts could be combined and I think with the right design the parts could slot together eliminating the need for the plastic rivets. What will also be essential in production is processes to ensure that the parts aren't contaminated otherwise the finished items won't be able to be used for days. We can't risk ppe being supplied with Coronavirus on it.<br />
<br />
<hr /><br />
<br />
:'''[https://nottinghack.slack.com/archives/C010BT8CALA/p1585168152216000 DrGandalf (2002-03-25 8:29PM)]''': Hi all. Sorry missed the zoom. In one day have learnt the power and challenge of using Slack, negotiating in the NHS infrastructure and the amazing work our community can do.<br />
:I'll try and summarise from what I know so far and then I'll answer what I can from the medical perspective.<br />
:1. We will need as many visors as we can get.<br />
:2. Because of repeatedly pushing this - hopeful that the universities are able to join in and produce in a large scale.<br />
:3. Your willingness and contributions have blown me away.<br />
:4. I am trying to sort logistics re bands and visors with @Dominic Morrow, @mgoodwin and others.<br />
:5. Re not being medical grade-so far the answer is we need them and better than nothing. If genuine concerns will be single use but more likely one clinician per day.<br />
:6. Regarding the plastic sheet version I am trying to get a better idea from infection control but this will take a day or two unfortunately - bureaucracy still exists.<br />
:7. My next plan is to focus on logistics given you are all in lockdown for collection. Hoping we can arrange a collection service for distribution to ensure your work is used by NHS and social care and not misusing your support. For this reason if you have made anything please use this spreadsheet bit.ly/NottsRC2</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=3D_Printed_COVID-19_PPE&diff=245563D Printed COVID-19 PPE2020-03-29T13:33:04Z<p>Chunky: /* A4 Binding Sheet Face Shield */</p>
<hr />
<div>This page summarises the effort by members to produce and supply personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
'''NOTE: THIS PAGE HAS BEEN FILLED BASED ON CONVERSATIONS ON THE SLACK CHANNEL AND HAS YET TO BE REVIEWED, PLEASE DO NOT TAKE IT AS A SOURCE OF AUTHORITY.'''<br />
<br />
The Slack channel <code>#covid-19-ppe</code> is being used for discussion. The channel is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort.<br />
<br />
If you are able to produce face shields, please log what you can on [http://bit.ly/NottsRC2 this sheet]. The sheet will also be used for organising the collection effort.<br />
<br />
We are trying to coordiante effors for producing visors. We are trying to work to just two standard designs - one 3D printed and one laser cut. We will update this page with both designs once confirmed.<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
Please do NOT travel in order to make these unless totally safe to do so.<br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves, if at all possible. <br />
<br />
Some notes for hygienic packing are given below. <br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing.<br />
<br />
mgoodwin is part of the co-ordination of the shield making locally, and also someone from TechNotts.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Co-ordination for a similar shield as the 3D printed version, using a laser cut polypropylene hand band. <br />
More information at [[LaserCutCOVID-19_PPE]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
The designs we are primarily working with are as follows:<br />
<br />
====[https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and A4 Binding Sheet Face Shield]====<br />
We have successful prints of this already. Our contact at the NHS has asked specifically for this design. <br />
<br />
Members are currently printing 3 different versions of this headband. '''Please make the first version if you can''' otherwise try the other two versions (if your printer does not print this very well).<br />
<br />
{| class="wikitable"<br />
|-<br />
! Design / File<br />
! Approx. Print time<br />
! Approx. Filament used<br />
! Image<br />
! Details<br />
|-<br />
| [https://media.prusaprinters.org/media/prints/26241/stls/268557_6b14e5f8-3397-4552-8ffa-d34047b0cb03/most-optimal-rc3.stl#_ga=2.177542885.1550124073.1585145144-1280391435.1585145144 The original design] || 60 - 90 Minutes || 10g ||<br />
[[File:Original design.jpg|thumb]]<br />
|| This is the original design of the A4 Binding Sheet Face Shield and is the version which we have originally been asked to produce, and is therefore the preferred version. <br />
If your 3d printer is capable of printing this version quickly and reliably then please use this version.<br />
|-<br />
| [https://wiki.nottinghack.org.uk/wiki/File:Face_Shield_v1_0_2.zip The adapted design] || 60 - 90 Minutes || 10g || <br />
[[File:Adapted design.jpg|thumb|Adapted design]]<br />
|| This design is the same as the above with two very small but important changes: the walls are double the thickness and the hexagonal holes have been removed. <br />
This design will print well on lower quality, less functional 3d printers.<br />
|-<br />
|[https://wiki.nottinghack.org.uk/wiki/File:Face_Shield_-_Adjusted_Design.zip The altered design]|| 30 -45 minutes || 12g || <br />
[[File:Altered design.jpg|thumb|Altered design]]<br />
|| Whilst this design will maintain the same face to screen clearance and utilises the same punched acetates, it is significantly different from the original design. The walls are significantly thicker and the overall height of the band is considerably lower. 3D printers will be much more forgiving with this design (resulting in less failures) and will be able to print this version much quicker. <br />
If your machine has had difficulty in printing the above two designs then please use this design. <br />
If you have a well calibrated machine you may want to attempt printing this version at your machines highest speed to increase your output.<br />
<br />
|}<br />
<br />
====[https://www.prusaprinters.org/prints/26883-fast-face-shield Fast Face Shield]====<br />
<br />
=== Headbands ===<br />
<br />
PETG filament is being recommended for the headbands because it is more likely to survive autoclaving, but at the moment we are expecting (based on information from DrGandalf) that these masks will be going to clinics, not hospitals, and will therefore not be going through autoclaves. Instead they will be wiped clean, so PLA is also fine for printing the head bands.<br />
<br />
It may be better to laser cut headbands where possible, due to the tendency for FDM prints to produce surfaces that can harbour bacteria. More investigation and research is needed into making headbands on a laser cutter.<br />
<br />
Regarding the FDM surface issue, at the moment we are working on the principle of something being better than nothing. We are still waiting on an official directive from infection control as to what materials and approaches are approved.<br />
<br />
=== Visors ===<br />
<br />
Visors can be made from A4 transparencies, as per the first design above. They can be acquired from Amazon:<br />
<br />
* https://www.amazon.co.uk/dp/B000YC2UTS/<br />
* https://www.amazon.co.uk/dp/B000W4IZN8/<br />
<br />
Dominic Morrow has purchased some of these. We will know more about their suitability and properties when they arrive.<br />
<br />
The hole punch must be a '''2 hole''' punch set to '''A6''' size. The holes are then punched from each side of the A4 clear binder cover/transparency. This is shown in the image here:<br />
<br />
[[File:Hole punch instructions.png|center|400px|Instructions for hole punching]]<br />
<br />
== Packaging ==<br />
<br />
Advice from NUH contact regarding the official NHS masks: '"we can't autoclave the OFFICIAL shields we get because they have foam parts, they have to go in the bin" and that "the ones we get from the NHS centrally turn up in boxes, not bags, they're not clinically clean. They DO have a bit of film over them, like a racing drivers visor, but that's just to stop stretches in transit. What you're making as long as you take basic precautions, will work well for us at this time."'<br />
<br />
On that basis, we are assuming that provided the masks are produced in conditions where there is no known risk of COVID-19 (i.e. none of the conditions for self-quarenteen are met) and the masks and materials are handled with clean hands then they may be delivered without any special cleaning or packaging.<br />
<br />
== Safety Concerns ==<br />
<br />
Please do not compromise your own safety, or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
FDM prints leave a lot of small microscopic holes in the surface, which can harbour bacteria. While not much can be done about this, and it isn't ideal, we have been told that it's currently a case of "anything is better than nothing", and that cleaning will be rigorous. For now it is probably a good idea to try to seal the surface of FDM prints with a surface sealer, epoxy, or with a flame if those aren't available. Laser cutting may be a better option but, again, FDM prints are better than nothing.<br />
<br />
== Delivery ==<br />
<br />
Locations known to have an interest include:<br />
* Bulwell Riverside<br />
* St Anns Wells Health Centre<br />
* Mary Potter Health Centre<br />
* Clifton Conerstone<br />
* NCGPA at Upper Parliament St.<br />
* Nottingham University Hospital<br />
<br />
NOTE that we are still lacking details on how best and when to deliver to these locations. If you find specific information on their level of need and preferred delivery method then please add this to the Wiki.<br />
<br />
There may be a pick-up arrangements too, TBA.<br />
<br />
== Important Slack Messages ==<br />
<br />
The following messages were copied from Slack, as they contain particularly helpful information:<br />
<br />
:'''[https://nottinghack.slack.com/archives/C010BT8CALA/p1585162815198800 geoff hampson (2020-03-25 7:00PM)]''': My opinion for what it is worth is if we want to be able to manufacture these in the quantities that are going to be required then it needs to be laser cut. Even with lots of people 3D printing parts the capability just won't be there. The laser cut version looks ok, but I think with a big bed some parts could be combined and I think with the right design the parts could slot together eliminating the need for the plastic rivets. What will also be essential in production is processes to ensure that the parts aren't contaminated otherwise the finished items won't be able to be used for days. We can't risk ppe being supplied with Coronavirus on it.<br />
<br />
<hr /><br />
<br />
:'''[https://nottinghack.slack.com/archives/C010BT8CALA/p1585168152216000 DrGandalf (2002-03-25 8:29PM)]''': Hi all. Sorry missed the zoom. In one day have learnt the power and challenge of using Slack, negotiating in the NHS infrastructure and the amazing work our community can do.<br />
:I'll try and summarise from what I know so far and then I'll answer what I can from the medical perspective.<br />
:1. We will need as many visors as we can get.<br />
:2. Because of repeatedly pushing this - hopeful that the universities are able to join in and produce in a large scale.<br />
:3. Your willingness and contributions have blown me away.<br />
:4. I am trying to sort logistics re bands and visors with @Dominic Morrow, @mgoodwin and others.<br />
:5. Re not being medical grade-so far the answer is we need them and better than nothing. If genuine concerns will be single use but more likely one clinician per day.<br />
:6. Regarding the plastic sheet version I am trying to get a better idea from infection control but this will take a day or two unfortunately - bureaucracy still exists.<br />
:7. My next plan is to focus on logistics given you are all in lockdown for collection. Hoping we can arrange a collection service for distribution to ensure your work is used by NHS and social care and not misusing your support. For this reason if you have made anything please use this spreadsheet bit.ly/NottsRC2</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=3D_Printed_COVID-19_PPE&diff=245553D Printed COVID-19 PPE2020-03-29T13:32:47Z<p>Chunky: /* 3D Print Face Shields with Acetate Sheet Front */</p>
<hr />
<div>This page summarises the effort by members to produce and supply personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
'''NOTE: THIS PAGE HAS BEEN FILLED BASED ON CONVERSATIONS ON THE SLACK CHANNEL AND HAS YET TO BE REVIEWED, PLEASE DO NOT TAKE IT AS A SOURCE OF AUTHORITY.'''<br />
<br />
The Slack channel <code>#covid-19-ppe</code> is being used for discussion. The channel is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort.<br />
<br />
If you are able to produce face shields, please log what you can on [http://bit.ly/NottsRC2 this sheet]. The sheet will also be used for organising the collection effort.<br />
<br />
We are trying to coordiante effors for producing visors. We are trying to work to just two standard designs - one 3D printed and one laser cut. We will update this page with both designs once confirmed.<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
Please do NOT travel in order to make these unless totally safe to do so.<br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves, if at all possible. <br />
<br />
Some notes for hygienic packing are given below. <br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing.<br />
<br />
mgoodwin is part of the co-ordination of the shield making locally, and also someone from TechNotts.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Co-ordination for a similar shield as the 3D printed version, using a laser cut polypropylene hand band. <br />
More information at [[LaserCutCOVID-19_PPE]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
The designs we are primarily working with are as follows:<br />
<br />
====[https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and A4 Binding Sheet Face Shield]====<br />
We have successful prints of this already. Our contact at the NHS has asked specifically for this design. <br />
<br />
Members are currently printing 3 different versions of this headband. '''Please make the first version if you can''' otherwise (if your printer does not print this very well).<br />
<br />
{| class="wikitable"<br />
|-<br />
! Design / File<br />
! Approx. Print time<br />
! Approx. Filament used<br />
! Image<br />
! Details<br />
|-<br />
| [https://media.prusaprinters.org/media/prints/26241/stls/268557_6b14e5f8-3397-4552-8ffa-d34047b0cb03/most-optimal-rc3.stl#_ga=2.177542885.1550124073.1585145144-1280391435.1585145144 The original design] || 60 - 90 Minutes || 10g ||<br />
[[File:Original design.jpg|thumb]]<br />
|| This is the original design of the A4 Binding Sheet Face Shield and is the version which we have originally been asked to produce, and is therefore the preferred version. <br />
If your 3d printer is capable of printing this version quickly and reliably then please use this version.<br />
|-<br />
| [https://wiki.nottinghack.org.uk/wiki/File:Face_Shield_v1_0_2.zip The adapted design] || 60 - 90 Minutes || 10g || <br />
[[File:Adapted design.jpg|thumb|Adapted design]]<br />
|| This design is the same as the above with two very small but important changes: the walls are double the thickness and the hexagonal holes have been removed. <br />
This design will print well on lower quality, less functional 3d printers.<br />
|-<br />
|[https://wiki.nottinghack.org.uk/wiki/File:Face_Shield_-_Adjusted_Design.zip The altered design]|| 30 -45 minutes || 12g || <br />
[[File:Altered design.jpg|thumb|Altered design]]<br />
|| Whilst this design will maintain the same face to screen clearance and utilises the same punched acetates, it is significantly different from the original design. The walls are significantly thicker and the overall height of the band is considerably lower. 3D printers will be much more forgiving with this design (resulting in less failures) and will be able to print this version much quicker. <br />
If your machine has had difficulty in printing the above two designs then please use this design. <br />
If you have a well calibrated machine you may want to attempt printing this version at your machines highest speed to increase your output.<br />
<br />
|}<br />
<br />
<br />
====[https://www.prusaprinters.org/prints/26883-fast-face-shield Fast Face Shield]====<br />
<br />
=== Headbands ===<br />
<br />
PETG filament is being recommended for the headbands because it is more likely to survive autoclaving, but at the moment we are expecting (based on information from DrGandalf) that these masks will be going to clinics, not hospitals, and will therefore not be going through autoclaves. Instead they will be wiped clean, so PLA is also fine for printing the head bands.<br />
<br />
It may be better to laser cut headbands where possible, due to the tendency for FDM prints to produce surfaces that can harbour bacteria. More investigation and research is needed into making headbands on a laser cutter.<br />
<br />
Regarding the FDM surface issue, at the moment we are working on the principle of something being better than nothing. We are still waiting on an official directive from infection control as to what materials and approaches are approved.<br />
<br />
=== Visors ===<br />
<br />
Visors can be made from A4 transparencies, as per the first design above. They can be acquired from Amazon:<br />
<br />
* https://www.amazon.co.uk/dp/B000YC2UTS/<br />
* https://www.amazon.co.uk/dp/B000W4IZN8/<br />
<br />
Dominic Morrow has purchased some of these. We will know more about their suitability and properties when they arrive.<br />
<br />
The hole punch must be a '''2 hole''' punch set to '''A6''' size. The holes are then punched from each side of the A4 clear binder cover/transparency. This is shown in the image here:<br />
<br />
[[File:Hole punch instructions.png|center|400px|Instructions for hole punching]]<br />
<br />
== Packaging ==<br />
<br />
Advice from NUH contact regarding the official NHS masks: '"we can't autoclave the OFFICIAL shields we get because they have foam parts, they have to go in the bin" and that "the ones we get from the NHS centrally turn up in boxes, not bags, they're not clinically clean. They DO have a bit of film over them, like a racing drivers visor, but that's just to stop stretches in transit. What you're making as long as you take basic precautions, will work well for us at this time."'<br />
<br />
On that basis, we are assuming that provided the masks are produced in conditions where there is no known risk of COVID-19 (i.e. none of the conditions for self-quarenteen are met) and the masks and materials are handled with clean hands then they may be delivered without any special cleaning or packaging.<br />
<br />
== Safety Concerns ==<br />
<br />
Please do not compromise your own safety, or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
FDM prints leave a lot of small microscopic holes in the surface, which can harbour bacteria. While not much can be done about this, and it isn't ideal, we have been told that it's currently a case of "anything is better than nothing", and that cleaning will be rigorous. For now it is probably a good idea to try to seal the surface of FDM prints with a surface sealer, epoxy, or with a flame if those aren't available. Laser cutting may be a better option but, again, FDM prints are better than nothing.<br />
<br />
== Delivery ==<br />
<br />
Locations known to have an interest include:<br />
* Bulwell Riverside<br />
* St Anns Wells Health Centre<br />
* Mary Potter Health Centre<br />
* Clifton Conerstone<br />
* NCGPA at Upper Parliament St.<br />
* Nottingham University Hospital<br />
<br />
NOTE that we are still lacking details on how best and when to deliver to these locations. If you find specific information on their level of need and preferred delivery method then please add this to the Wiki.<br />
<br />
There may be a pick-up arrangements too, TBA.<br />
<br />
== Important Slack Messages ==<br />
<br />
The following messages were copied from Slack, as they contain particularly helpful information:<br />
<br />
:'''[https://nottinghack.slack.com/archives/C010BT8CALA/p1585162815198800 geoff hampson (2020-03-25 7:00PM)]''': My opinion for what it is worth is if we want to be able to manufacture these in the quantities that are going to be required then it needs to be laser cut. Even with lots of people 3D printing parts the capability just won't be there. The laser cut version looks ok, but I think with a big bed some parts could be combined and I think with the right design the parts could slot together eliminating the need for the plastic rivets. What will also be essential in production is processes to ensure that the parts aren't contaminated otherwise the finished items won't be able to be used for days. We can't risk ppe being supplied with Coronavirus on it.<br />
<br />
<hr /><br />
<br />
:'''[https://nottinghack.slack.com/archives/C010BT8CALA/p1585168152216000 DrGandalf (2002-03-25 8:29PM)]''': Hi all. Sorry missed the zoom. In one day have learnt the power and challenge of using Slack, negotiating in the NHS infrastructure and the amazing work our community can do.<br />
:I'll try and summarise from what I know so far and then I'll answer what I can from the medical perspective.<br />
:1. We will need as many visors as we can get.<br />
:2. Because of repeatedly pushing this - hopeful that the universities are able to join in and produce in a large scale.<br />
:3. Your willingness and contributions have blown me away.<br />
:4. I am trying to sort logistics re bands and visors with @Dominic Morrow, @mgoodwin and others.<br />
:5. Re not being medical grade-so far the answer is we need them and better than nothing. If genuine concerns will be single use but more likely one clinician per day.<br />
:6. Regarding the plastic sheet version I am trying to get a better idea from infection control but this will take a day or two unfortunately - bureaucracy still exists.<br />
:7. My next plan is to focus on logistics given you are all in lockdown for collection. Hoping we can arrange a collection service for distribution to ensure your work is used by NHS and social care and not misusing your support. For this reason if you have made anything please use this spreadsheet bit.ly/NottsRC2</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=3D_Printed_COVID-19_PPE&diff=245543D Printed COVID-19 PPE2020-03-29T13:30:28Z<p>Chunky: /* 3D Print Face Shields with Acetate Sheet Front */</p>
<hr />
<div>This page summarises the effort by members to produce and supply personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
'''NOTE: THIS PAGE HAS BEEN FILLED BASED ON CONVERSATIONS ON THE SLACK CHANNEL AND HAS YET TO BE REVIEWED, PLEASE DO NOT TAKE IT AS A SOURCE OF AUTHORITY.'''<br />
<br />
The Slack channel <code>#covid-19-ppe</code> is being used for discussion. The channel is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort.<br />
<br />
If you are able to produce face shields, please log what you can on [http://bit.ly/NottsRC2 this sheet]. The sheet will also be used for organising the collection effort.<br />
<br />
We are trying to coordiante effors for producing visors. We are trying to work to just two standard designs - one 3D printed and one laser cut. We will update this page with both designs once confirmed.<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
Please do NOT travel in order to make these unless totally safe to do so.<br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves, if at all possible. <br />
<br />
Some notes for hygienic packing are given below. <br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing.<br />
<br />
mgoodwin is part of the co-ordination of the shield making locally, and also someone from TechNotts.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Co-ordination for a similar shield as the 3D printed version, using a laser cut polypropylene hand band. <br />
More information at [[LaserCutCOVID-19_PPE]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
The designs we are primarily working with are as follows:<br />
<br />
====[https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and A4 Binding Sheet Face Shield]====<br />
We have successful prints of this already. Our contact at the NHS has asked specifically for this design. <br />
<br />
Members are currently printing 3 different versions of this headband:<br />
<br />
{| class="wikitable"<br />
|-<br />
! Design / File<br />
! Approx. Print time<br />
! Approx. Filament used<br />
! Image<br />
! Details<br />
|-<br />
| [https://media.prusaprinters.org/media/prints/26241/stls/268557_6b14e5f8-3397-4552-8ffa-d34047b0cb03/most-optimal-rc3.stl#_ga=2.177542885.1550124073.1585145144-1280391435.1585145144 The original design] || 60 - 90 Minutes || 10g ||<br />
[[File:Original design.jpg|thumb]]<br />
|| This is the original design of the A4 Binding Sheet Face Shield and is the version which we have originally been asked to produce, and is therefore the preferred version. <br />
If your 3d printer is capable of printing this version quickly and reliably then please use this version.<br />
|-<br />
| [https://wiki.nottinghack.org.uk/wiki/File:Face_Shield_v1_0_2.zip The adapted design] || 60 - 90 Minutes || 10g || <br />
[[File:Adapted design.jpg|thumb|Adapted design]]<br />
|| This design is the same as the above with two very small but important changes: the walls are double the thickness and the hexagonal holes have been removed. <br />
This design will print well on lower quality, less functional 3d printers.<br />
|-<br />
|[https://wiki.nottinghack.org.uk/wiki/File:Face_Shield_-_Adjusted_Design.zip The altered design]|| 30 -45 minutes || 12g || <br />
[[File:Altered design.jpg|thumb|Altered design]]<br />
|| Whilst this design will maintain the same face to screen clearance and utilises the same punched acetates, it is significantly different from the original design. The walls are significantly thicker and the overall height of the band is considerably lower. 3D printers will be much more forgiving with this design (resulting in less failures) and will be able to print this version much quicker. <br />
If your machine has had difficulty in printing the above two designs then please use this design. <br />
If you have a well calibrated machine you may want to attempt printing this version at your machines highest speed to increase your output.<br />
<br />
|}<br />
<br />
<br />
====[https://www.prusaprinters.org/prints/26883-fast-face-shield Fast Face Shield]====<br />
<br />
=== Headbands ===<br />
<br />
PETG filament is being recommended for the headbands because it is more likely to survive autoclaving, but at the moment we are expecting (based on information from DrGandalf) that these masks will be going to clinics, not hospitals, and will therefore not be going through autoclaves. Instead they will be wiped clean, so PLA is also fine for printing the head bands.<br />
<br />
It may be better to laser cut headbands where possible, due to the tendency for FDM prints to produce surfaces that can harbour bacteria. More investigation and research is needed into making headbands on a laser cutter.<br />
<br />
Regarding the FDM surface issue, at the moment we are working on the principle of something being better than nothing. We are still waiting on an official directive from infection control as to what materials and approaches are approved.<br />
<br />
=== Visors ===<br />
<br />
Visors can be made from A4 transparencies, as per the first design above. They can be acquired from Amazon:<br />
<br />
* https://www.amazon.co.uk/dp/B000YC2UTS/<br />
* https://www.amazon.co.uk/dp/B000W4IZN8/<br />
<br />
Dominic Morrow has purchased some of these. We will know more about their suitability and properties when they arrive.<br />
<br />
The hole punch must be a '''2 hole''' punch set to '''A6''' size. The holes are then punched from each side of the A4 clear binder cover/transparency. This is shown in the image here:<br />
<br />
[[File:Hole punch instructions.png|center|400px|Instructions for hole punching]]<br />
<br />
== Packaging ==<br />
<br />
Advice from NUH contact regarding the official NHS masks: '"we can't autoclave the OFFICIAL shields we get because they have foam parts, they have to go in the bin" and that "the ones we get from the NHS centrally turn up in boxes, not bags, they're not clinically clean. They DO have a bit of film over them, like a racing drivers visor, but that's just to stop stretches in transit. What you're making as long as you take basic precautions, will work well for us at this time."'<br />
<br />
On that basis, we are assuming that provided the masks are produced in conditions where there is no known risk of COVID-19 (i.e. none of the conditions for self-quarenteen are met) and the masks and materials are handled with clean hands then they may be delivered without any special cleaning or packaging.<br />
<br />
== Safety Concerns ==<br />
<br />
Please do not compromise your own safety, or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
FDM prints leave a lot of small microscopic holes in the surface, which can harbour bacteria. While not much can be done about this, and it isn't ideal, we have been told that it's currently a case of "anything is better than nothing", and that cleaning will be rigorous. For now it is probably a good idea to try to seal the surface of FDM prints with a surface sealer, epoxy, or with a flame if those aren't available. Laser cutting may be a better option but, again, FDM prints are better than nothing.<br />
<br />
== Delivery ==<br />
<br />
Locations known to have an interest include:<br />
* Bulwell Riverside<br />
* St Anns Wells Health Centre<br />
* Mary Potter Health Centre<br />
* Clifton Conerstone<br />
* NCGPA at Upper Parliament St.<br />
* Nottingham University Hospital<br />
<br />
NOTE that we are still lacking details on how best and when to deliver to these locations. If you find specific information on their level of need and preferred delivery method then please add this to the Wiki.<br />
<br />
There may be a pick-up arrangements too, TBA.<br />
<br />
== Important Slack Messages ==<br />
<br />
The following messages were copied from Slack, as they contain particularly helpful information:<br />
<br />
:'''[https://nottinghack.slack.com/archives/C010BT8CALA/p1585162815198800 geoff hampson (2020-03-25 7:00PM)]''': My opinion for what it is worth is if we want to be able to manufacture these in the quantities that are going to be required then it needs to be laser cut. Even with lots of people 3D printing parts the capability just won't be there. The laser cut version looks ok, but I think with a big bed some parts could be combined and I think with the right design the parts could slot together eliminating the need for the plastic rivets. What will also be essential in production is processes to ensure that the parts aren't contaminated otherwise the finished items won't be able to be used for days. We can't risk ppe being supplied with Coronavirus on it.<br />
<br />
<hr /><br />
<br />
:'''[https://nottinghack.slack.com/archives/C010BT8CALA/p1585168152216000 DrGandalf (2002-03-25 8:29PM)]''': Hi all. Sorry missed the zoom. In one day have learnt the power and challenge of using Slack, negotiating in the NHS infrastructure and the amazing work our community can do.<br />
:I'll try and summarise from what I know so far and then I'll answer what I can from the medical perspective.<br />
:1. We will need as many visors as we can get.<br />
:2. Because of repeatedly pushing this - hopeful that the universities are able to join in and produce in a large scale.<br />
:3. Your willingness and contributions have blown me away.<br />
:4. I am trying to sort logistics re bands and visors with @Dominic Morrow, @mgoodwin and others.<br />
:5. Re not being medical grade-so far the answer is we need them and better than nothing. If genuine concerns will be single use but more likely one clinician per day.<br />
:6. Regarding the plastic sheet version I am trying to get a better idea from infection control but this will take a day or two unfortunately - bureaucracy still exists.<br />
:7. My next plan is to focus on logistics given you are all in lockdown for collection. Hoping we can arrange a collection service for distribution to ensure your work is used by NHS and social care and not misusing your support. For this reason if you have made anything please use this spreadsheet bit.ly/NottsRC2</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24553Laser Cut COVID-19 PPE2020-03-29T13:29:41Z<p>Chunky: /* Laser Cut Face Shields with Acetate Sheet Front */</p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home. We must ensure that '''no risks at all''' are taken.<br />
<br />
We must ensure as much as possible that the PPE/parts come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household COVID-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with [https://www.kitronik.co.uk/ Kitronik] and [https://smokeandmirrors.store/ Smoke & Mirrors] to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|center|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet, 0.5mm thickness, any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover - 100 to 200 micron thickness seems to be best (''Note: This will '''NOT''' be laser cut - use the hole punch'')<br />
*4. Hole punch with slider for A6 holes.<br />
*5. Clean hands and a way to bag you shields.<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|center|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|center|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC '''DOES NOT''' need to be laser cut. Use a standard 2 hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 22, Speed 70 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
----<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''How is this design used in practice?''<br><br />
A. The visors alrady used by the NHS are one-use only. They are used typically used by one member of staff for a day/session. We envisage that these will be used as required by the healthcare worker for their job (potentially for one job or for one day) and will then be thrown away.<br />
<br />
Q. ''Length of visor shield?''<br><br />
A. This design uses a standard sheet of A4 clear plastic as a front shield. This works for most people. This can be cut to length as required by the person wearing it.<br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of material?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater than 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. ''Who are you liaising with?'' <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. ''Do they actually want this stuff?'' <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. ''Should I make shields if no one has said they want them in my area?''<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br><br />
<br />
==Other groups working on similar items==<br />
<br />
We are looking for maufacture and supply locally to Nottingham, UK. <br />
<br />
There are lots of other people working on similar ideas and useful projects. Some are linked here for info:<br />
<br />
* [https://github.com/DoESLiverpool/covid19 DoES Liverpool, UK]<br />
* [https://coronavirustechhandbook.com/home Corona Virus Tech Handbook]<br />
* [https://getusppe.org/ Get Us PPE - US site]<br />
* [https://makezine.com/2020/03/22/whats-plan-c-for-covid-19/ Make Magazine round up of projects]<br />
* [https://www.helpfulengineering.org/ Helpful Engineering - Review of projects] (suggest PPE is most suitable for makers)<br />
* [https://www.3dcrowd.uk/ 3D Crowd for 3D printed masks]</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=3D_Printed_COVID-19_PPE&diff=245523D Printed COVID-19 PPE2020-03-29T13:29:05Z<p>Chunky: /* Visors */</p>
<hr />
<div>This page summarises the effort by members to produce and supply personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
'''NOTE: THIS PAGE HAS BEEN FILLED BASED ON CONVERSATIONS ON THE SLACK CHANNEL AND HAS YET TO BE REVIEWED, PLEASE DO NOT TAKE IT AS A SOURCE OF AUTHORITY.'''<br />
<br />
The Slack channel <code>#covid-19-ppe</code> is being used for discussion. The channel is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort.<br />
<br />
If you are able to produce face shields, please log what you can on [http://bit.ly/NottsRC2 this sheet]. The sheet will also be used for organising the collection effort.<br />
<br />
We are trying to coordiante effors for producing visors. We are trying to work to just two standard designs - one 3D printed and one laser cut. We will update this page with both designs once confirmed.<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
Please do NOT travel in order to make these unless totally safe to do so.<br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves, if at all possible. <br />
<br />
Some notes for hygienic packing are given below. <br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing.<br />
<br />
mgoodwin is part of the co-ordination of the shield making locally, and also someone from TechNotts.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Co-ordination for a similar shield as the 3D printed version, using a laser cut polypropylene hand band. <br />
More information at [[LaserCutCOVID-19_PPE]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please note that we '''DO NOT''' yet (as of 2020-03-25) have approval from Infection Control on any specific design. For the moment it is still worth experimenting and making some parts, since every day of delay counts against us, but face shields cannot be donated until approval is obtained.<br />
<br />
The designs we are primarily working with are as follows:<br />
<br />
====[https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and A4 Binding Sheet Face Shield]====<br />
We have successful prints of this already. Our contact at the NHS has asked specifically for this design. <br />
<br />
Members are currently printing 3 different versions of this headband:<br />
<br />
{| class="wikitable"<br />
|-<br />
! Design / File<br />
! Approx. Print time<br />
! Approx. Filament used<br />
! Image<br />
! Details<br />
|-<br />
| [https://media.prusaprinters.org/media/prints/26241/stls/268557_6b14e5f8-3397-4552-8ffa-d34047b0cb03/most-optimal-rc3.stl#_ga=2.177542885.1550124073.1585145144-1280391435.1585145144 The original design] || 60 - 90 Minutes || 10g ||<br />
[[File:Original design.jpg|thumb]]<br />
|| This is the original design of the A4 Binding Sheet Face Shield and is the version which we have originally been asked to produce, and is therefore the preferred version. <br />
If your 3d printer is capable of printing this version quickly and reliably then please use this version.<br />
|-<br />
| [https://wiki.nottinghack.org.uk/wiki/File:Face_Shield_v1_0_2.zip The adapted design] || 60 - 90 Minutes || 10g || <br />
[[File:Adapted design.jpg|thumb|Adapted design]]<br />
|| This design is the same as the above with two very small but important changes: the walls are double the thickness and the hexagonal holes have been removed. <br />
This design will print well on lower quality, less functional 3d printers.<br />
|-<br />
|[https://wiki.nottinghack.org.uk/wiki/File:Face_Shield_-_Adjusted_Design.zip The altered design]|| 30 -45 minutes || 12g || <br />
[[File:Altered design.jpg|thumb|Altered design]]<br />
|| Whilst this design will maintain the same face to screen clearance and utilises the same punched acetates, it is significantly different from the original design. The walls are significantly thicker and the overall height of the band is considerably lower. 3D printers will be much more forgiving with this design (resulting in less failures) and will be able to print this version much quicker. <br />
If your machine has had difficulty in printing the above two designs then please use this design. <br />
If you have a well calibrated machine you may want to attempt printing this version at your machines highest speed to increase your output.<br />
<br />
|}<br />
<br />
<br />
====[https://www.prusaprinters.org/prints/26883-fast-face-shield Fast Face Shield]====<br />
<br />
=== Headbands ===<br />
<br />
PETG filament is being recommended for the headbands because it is more likely to survive autoclaving, but at the moment we are expecting (based on information from DrGandalf) that these masks will be going to clinics, not hospitals, and will therefore not be going through autoclaves. Instead they will be wiped clean, so PLA is also fine for printing the head bands.<br />
<br />
It may be better to laser cut headbands where possible, due to the tendency for FDM prints to produce surfaces that can harbour bacteria. More investigation and research is needed into making headbands on a laser cutter.<br />
<br />
Regarding the FDM surface issue, at the moment we are working on the principle of something being better than nothing. We are still waiting on an official directive from infection control as to what materials and approaches are approved.<br />
<br />
=== Visors ===<br />
<br />
Visors can be made from A4 transparencies, as per the first design above. They can be acquired from Amazon:<br />
<br />
* https://www.amazon.co.uk/dp/B000YC2UTS/<br />
* https://www.amazon.co.uk/dp/B000W4IZN8/<br />
<br />
Dominic Morrow has purchased some of these. We will know more about their suitability and properties when they arrive.<br />
<br />
The hole punch must be a '''2 hole''' punch set to '''A6''' size. The holes are then punched from each side of the A4 clear binder cover/transparency. This is shown in the image here:<br />
<br />
[[File:Hole punch instructions.png|center|400px|Instructions for hole punching]]<br />
<br />
== Packaging ==<br />
<br />
Advice from NUH contact regarding the official NHS masks: '"we can't autoclave the OFFICIAL shields we get because they have foam parts, they have to go in the bin" and that "the ones we get from the NHS centrally turn up in boxes, not bags, they're not clinically clean. They DO have a bit of film over them, like a racing drivers visor, but that's just to stop stretches in transit. What you're making as long as you take basic precautions, will work well for us at this time."'<br />
<br />
On that basis, we are assuming that provided the masks are produced in conditions where there is no known risk of COVID-19 (i.e. none of the conditions for self-quarenteen are met) and the masks and materials are handled with clean hands then they may be delivered without any special cleaning or packaging.<br />
<br />
== Safety Concerns ==<br />
<br />
Please do not compromise your own safety, or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
FDM prints leave a lot of small microscopic holes in the surface, which can harbour bacteria. While not much can be done about this, and it isn't ideal, we have been told that it's currently a case of "anything is better than nothing", and that cleaning will be rigorous. For now it is probably a good idea to try to seal the surface of FDM prints with a surface sealer, epoxy, or with a flame if those aren't available. Laser cutting may be a better option but, again, FDM prints are better than nothing.<br />
<br />
== Delivery ==<br />
<br />
Locations known to have an interest include:<br />
* Bulwell Riverside<br />
* St Anns Wells Health Centre<br />
* Mary Potter Health Centre<br />
* Clifton Conerstone<br />
* NCGPA at Upper Parliament St.<br />
* Nottingham University Hospital<br />
<br />
NOTE that we are still lacking details on how best and when to deliver to these locations. If you find specific information on their level of need and preferred delivery method then please add this to the Wiki.<br />
<br />
There may be a pick-up arrangements too, TBA.<br />
<br />
== Important Slack Messages ==<br />
<br />
The following messages were copied from Slack, as they contain particularly helpful information:<br />
<br />
:'''[https://nottinghack.slack.com/archives/C010BT8CALA/p1585162815198800 geoff hampson (2020-03-25 7:00PM)]''': My opinion for what it is worth is if we want to be able to manufacture these in the quantities that are going to be required then it needs to be laser cut. Even with lots of people 3D printing parts the capability just won't be there. The laser cut version looks ok, but I think with a big bed some parts could be combined and I think with the right design the parts could slot together eliminating the need for the plastic rivets. What will also be essential in production is processes to ensure that the parts aren't contaminated otherwise the finished items won't be able to be used for days. We can't risk ppe being supplied with Coronavirus on it.<br />
<br />
<hr /><br />
<br />
:'''[https://nottinghack.slack.com/archives/C010BT8CALA/p1585168152216000 DrGandalf (2002-03-25 8:29PM)]''': Hi all. Sorry missed the zoom. In one day have learnt the power and challenge of using Slack, negotiating in the NHS infrastructure and the amazing work our community can do.<br />
:I'll try and summarise from what I know so far and then I'll answer what I can from the medical perspective.<br />
:1. We will need as many visors as we can get.<br />
:2. Because of repeatedly pushing this - hopeful that the universities are able to join in and produce in a large scale.<br />
:3. Your willingness and contributions have blown me away.<br />
:4. I am trying to sort logistics re bands and visors with @Dominic Morrow, @mgoodwin and others.<br />
:5. Re not being medical grade-so far the answer is we need them and better than nothing. If genuine concerns will be single use but more likely one clinician per day.<br />
:6. Regarding the plastic sheet version I am trying to get a better idea from infection control but this will take a day or two unfortunately - bureaucracy still exists.<br />
:7. My next plan is to focus on logistics given you are all in lockdown for collection. Hoping we can arrange a collection service for distribution to ensure your work is used by NHS and social care and not misusing your support. For this reason if you have made anything please use this spreadsheet bit.ly/NottsRC2</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=3D_Printed_COVID-19_PPE&diff=245513D Printed COVID-19 PPE2020-03-29T13:28:52Z<p>Chunky: /* Visors */</p>
<hr />
<div>This page summarises the effort by members to produce and supply personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
'''NOTE: THIS PAGE HAS BEEN FILLED BASED ON CONVERSATIONS ON THE SLACK CHANNEL AND HAS YET TO BE REVIEWED, PLEASE DO NOT TAKE IT AS A SOURCE OF AUTHORITY.'''<br />
<br />
The Slack channel <code>#covid-19-ppe</code> is being used for discussion. The channel is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort.<br />
<br />
If you are able to produce face shields, please log what you can on [http://bit.ly/NottsRC2 this sheet]. The sheet will also be used for organising the collection effort.<br />
<br />
We are trying to coordiante effors for producing visors. We are trying to work to just two standard designs - one 3D printed and one laser cut. We will update this page with both designs once confirmed.<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
Please do NOT travel in order to make these unless totally safe to do so.<br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves, if at all possible. <br />
<br />
Some notes for hygienic packing are given below. <br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing.<br />
<br />
mgoodwin is part of the co-ordination of the shield making locally, and also someone from TechNotts.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Co-ordination for a similar shield as the 3D printed version, using a laser cut polypropylene hand band. <br />
More information at [[LaserCutCOVID-19_PPE]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please note that we '''DO NOT''' yet (as of 2020-03-25) have approval from Infection Control on any specific design. For the moment it is still worth experimenting and making some parts, since every day of delay counts against us, but face shields cannot be donated until approval is obtained.<br />
<br />
The designs we are primarily working with are as follows:<br />
<br />
====[https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and A4 Binding Sheet Face Shield]====<br />
We have successful prints of this already. Our contact at the NHS has asked specifically for this design. <br />
<br />
Members are currently printing 3 different versions of this headband:<br />
<br />
{| class="wikitable"<br />
|-<br />
! Design / File<br />
! Approx. Print time<br />
! Approx. Filament used<br />
! Image<br />
! Details<br />
|-<br />
| [https://media.prusaprinters.org/media/prints/26241/stls/268557_6b14e5f8-3397-4552-8ffa-d34047b0cb03/most-optimal-rc3.stl#_ga=2.177542885.1550124073.1585145144-1280391435.1585145144 The original design] || 60 - 90 Minutes || 10g ||<br />
[[File:Original design.jpg|thumb]]<br />
|| This is the original design of the A4 Binding Sheet Face Shield and is the version which we have originally been asked to produce, and is therefore the preferred version. <br />
If your 3d printer is capable of printing this version quickly and reliably then please use this version.<br />
|-<br />
| [https://wiki.nottinghack.org.uk/wiki/File:Face_Shield_v1_0_2.zip The adapted design] || 60 - 90 Minutes || 10g || <br />
[[File:Adapted design.jpg|thumb|Adapted design]]<br />
|| This design is the same as the above with two very small but important changes: the walls are double the thickness and the hexagonal holes have been removed. <br />
This design will print well on lower quality, less functional 3d printers.<br />
|-<br />
|[https://wiki.nottinghack.org.uk/wiki/File:Face_Shield_-_Adjusted_Design.zip The altered design]|| 30 -45 minutes || 12g || <br />
[[File:Altered design.jpg|thumb|Altered design]]<br />
|| Whilst this design will maintain the same face to screen clearance and utilises the same punched acetates, it is significantly different from the original design. The walls are significantly thicker and the overall height of the band is considerably lower. 3D printers will be much more forgiving with this design (resulting in less failures) and will be able to print this version much quicker. <br />
If your machine has had difficulty in printing the above two designs then please use this design. <br />
If you have a well calibrated machine you may want to attempt printing this version at your machines highest speed to increase your output.<br />
<br />
|}<br />
<br />
<br />
====[https://www.prusaprinters.org/prints/26883-fast-face-shield Fast Face Shield]====<br />
<br />
=== Headbands ===<br />
<br />
PETG filament is being recommended for the headbands because it is more likely to survive autoclaving, but at the moment we are expecting (based on information from DrGandalf) that these masks will be going to clinics, not hospitals, and will therefore not be going through autoclaves. Instead they will be wiped clean, so PLA is also fine for printing the head bands.<br />
<br />
It may be better to laser cut headbands where possible, due to the tendency for FDM prints to produce surfaces that can harbour bacteria. More investigation and research is needed into making headbands on a laser cutter.<br />
<br />
Regarding the FDM surface issue, at the moment we are working on the principle of something being better than nothing. We are still waiting on an official directive from infection control as to what materials and approaches are approved.<br />
<br />
=== Visors ===<br />
<br />
Visors can be made from A4 transparencies, as per the first design above. They can be acquired from Amazon:<br />
<br />
* https://www.amazon.co.uk/dp/B000YC2UTS/<br />
* https://www.amazon.co.uk/dp/B000W4IZN8/<br />
<br />
Dominic Morrow has purchased some of these. We will know more about their suitability and properties when they arrive.<br />
<br />
The hole punch must be a '''2 hole''' punch set to '''A6''' size. The holes are then punched from each side of the A4 clear binder cover/transparency. This is shown in the image here<br />
<br />
[[File:Hole punch instructions.png|400px|Instructions for hole punching]]<br />
<br />
== Packaging ==<br />
<br />
Advice from NUH contact regarding the official NHS masks: '"we can't autoclave the OFFICIAL shields we get because they have foam parts, they have to go in the bin" and that "the ones we get from the NHS centrally turn up in boxes, not bags, they're not clinically clean. They DO have a bit of film over them, like a racing drivers visor, but that's just to stop stretches in transit. What you're making as long as you take basic precautions, will work well for us at this time."'<br />
<br />
On that basis, we are assuming that provided the masks are produced in conditions where there is no known risk of COVID-19 (i.e. none of the conditions for self-quarenteen are met) and the masks and materials are handled with clean hands then they may be delivered without any special cleaning or packaging.<br />
<br />
== Safety Concerns ==<br />
<br />
Please do not compromise your own safety, or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
FDM prints leave a lot of small microscopic holes in the surface, which can harbour bacteria. While not much can be done about this, and it isn't ideal, we have been told that it's currently a case of "anything is better than nothing", and that cleaning will be rigorous. For now it is probably a good idea to try to seal the surface of FDM prints with a surface sealer, epoxy, or with a flame if those aren't available. Laser cutting may be a better option but, again, FDM prints are better than nothing.<br />
<br />
== Delivery ==<br />
<br />
Locations known to have an interest include:<br />
* Bulwell Riverside<br />
* St Anns Wells Health Centre<br />
* Mary Potter Health Centre<br />
* Clifton Conerstone<br />
* NCGPA at Upper Parliament St.<br />
* Nottingham University Hospital<br />
<br />
NOTE that we are still lacking details on how best and when to deliver to these locations. If you find specific information on their level of need and preferred delivery method then please add this to the Wiki.<br />
<br />
There may be a pick-up arrangements too, TBA.<br />
<br />
== Important Slack Messages ==<br />
<br />
The following messages were copied from Slack, as they contain particularly helpful information:<br />
<br />
:'''[https://nottinghack.slack.com/archives/C010BT8CALA/p1585162815198800 geoff hampson (2020-03-25 7:00PM)]''': My opinion for what it is worth is if we want to be able to manufacture these in the quantities that are going to be required then it needs to be laser cut. Even with lots of people 3D printing parts the capability just won't be there. The laser cut version looks ok, but I think with a big bed some parts could be combined and I think with the right design the parts could slot together eliminating the need for the plastic rivets. What will also be essential in production is processes to ensure that the parts aren't contaminated otherwise the finished items won't be able to be used for days. We can't risk ppe being supplied with Coronavirus on it.<br />
<br />
<hr /><br />
<br />
:'''[https://nottinghack.slack.com/archives/C010BT8CALA/p1585168152216000 DrGandalf (2002-03-25 8:29PM)]''': Hi all. Sorry missed the zoom. In one day have learnt the power and challenge of using Slack, negotiating in the NHS infrastructure and the amazing work our community can do.<br />
:I'll try and summarise from what I know so far and then I'll answer what I can from the medical perspective.<br />
:1. We will need as many visors as we can get.<br />
:2. Because of repeatedly pushing this - hopeful that the universities are able to join in and produce in a large scale.<br />
:3. Your willingness and contributions have blown me away.<br />
:4. I am trying to sort logistics re bands and visors with @Dominic Morrow, @mgoodwin and others.<br />
:5. Re not being medical grade-so far the answer is we need them and better than nothing. If genuine concerns will be single use but more likely one clinician per day.<br />
:6. Regarding the plastic sheet version I am trying to get a better idea from infection control but this will take a day or two unfortunately - bureaucracy still exists.<br />
:7. My next plan is to focus on logistics given you are all in lockdown for collection. Hoping we can arrange a collection service for distribution to ensure your work is used by NHS and social care and not misusing your support. For this reason if you have made anything please use this spreadsheet bit.ly/NottsRC2</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=3D_Printed_COVID-19_PPE&diff=245503D Printed COVID-19 PPE2020-03-29T13:27:39Z<p>Chunky: </p>
<hr />
<div>This page summarises the effort by members to produce and supply personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
'''NOTE: THIS PAGE HAS BEEN FILLED BASED ON CONVERSATIONS ON THE SLACK CHANNEL AND HAS YET TO BE REVIEWED, PLEASE DO NOT TAKE IT AS A SOURCE OF AUTHORITY.'''<br />
<br />
The Slack channel <code>#covid-19-ppe</code> is being used for discussion. The channel is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort.<br />
<br />
If you are able to produce face shields, please log what you can on [http://bit.ly/NottsRC2 this sheet]. The sheet will also be used for organising the collection effort.<br />
<br />
We are trying to coordiante effors for producing visors. We are trying to work to just two standard designs - one 3D printed and one laser cut. We will update this page with both designs once confirmed.<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
Please do NOT travel in order to make these unless totally safe to do so.<br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves, if at all possible. <br />
<br />
Some notes for hygienic packing are given below. <br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing.<br />
<br />
mgoodwin is part of the co-ordination of the shield making locally, and also someone from TechNotts.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Co-ordination for a similar shield as the 3D printed version, using a laser cut polypropylene hand band. <br />
More information at [[LaserCutCOVID-19_PPE]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please note that we '''DO NOT''' yet (as of 2020-03-25) have approval from Infection Control on any specific design. For the moment it is still worth experimenting and making some parts, since every day of delay counts against us, but face shields cannot be donated until approval is obtained.<br />
<br />
The designs we are primarily working with are as follows:<br />
<br />
====[https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and A4 Binding Sheet Face Shield]====<br />
We have successful prints of this already. Our contact at the NHS has asked specifically for this design. <br />
<br />
Members are currently printing 3 different versions of this headband:<br />
<br />
{| class="wikitable"<br />
|-<br />
! Design / File<br />
! Approx. Print time<br />
! Approx. Filament used<br />
! Image<br />
! Details<br />
|-<br />
| [https://media.prusaprinters.org/media/prints/26241/stls/268557_6b14e5f8-3397-4552-8ffa-d34047b0cb03/most-optimal-rc3.stl#_ga=2.177542885.1550124073.1585145144-1280391435.1585145144 The original design] || 60 - 90 Minutes || 10g ||<br />
[[File:Original design.jpg|thumb]]<br />
|| This is the original design of the A4 Binding Sheet Face Shield and is the version which we have originally been asked to produce, and is therefore the preferred version. <br />
If your 3d printer is capable of printing this version quickly and reliably then please use this version.<br />
|-<br />
| [https://wiki.nottinghack.org.uk/wiki/File:Face_Shield_v1_0_2.zip The adapted design] || 60 - 90 Minutes || 10g || <br />
[[File:Adapted design.jpg|thumb|Adapted design]]<br />
|| This design is the same as the above with two very small but important changes: the walls are double the thickness and the hexagonal holes have been removed. <br />
This design will print well on lower quality, less functional 3d printers.<br />
|-<br />
|[https://wiki.nottinghack.org.uk/wiki/File:Face_Shield_-_Adjusted_Design.zip The altered design]|| 30 -45 minutes || 12g || <br />
[[File:Altered design.jpg|thumb|Altered design]]<br />
|| Whilst this design will maintain the same face to screen clearance and utilises the same punched acetates, it is significantly different from the original design. The walls are significantly thicker and the overall height of the band is considerably lower. 3D printers will be much more forgiving with this design (resulting in less failures) and will be able to print this version much quicker. <br />
If your machine has had difficulty in printing the above two designs then please use this design. <br />
If you have a well calibrated machine you may want to attempt printing this version at your machines highest speed to increase your output.<br />
<br />
|}<br />
<br />
<br />
====[https://www.prusaprinters.org/prints/26883-fast-face-shield Fast Face Shield]====<br />
<br />
=== Headbands ===<br />
<br />
PETG filament is being recommended for the headbands because it is more likely to survive autoclaving, but at the moment we are expecting (based on information from DrGandalf) that these masks will be going to clinics, not hospitals, and will therefore not be going through autoclaves. Instead they will be wiped clean, so PLA is also fine for printing the head bands.<br />
<br />
It may be better to laser cut headbands where possible, due to the tendency for FDM prints to produce surfaces that can harbour bacteria. More investigation and research is needed into making headbands on a laser cutter.<br />
<br />
Regarding the FDM surface issue, at the moment we are working on the principle of something being better than nothing. We are still waiting on an official directive from infection control as to what materials and approaches are approved.<br />
<br />
=== Visors ===<br />
<br />
Visors can be made from A4 transparencies, as per the first design above. They can be acquired from Amazon:<br />
<br />
* https://www.amazon.co.uk/dp/B000YC2UTS/<br />
* https://www.amazon.co.uk/dp/B000W4IZN8/<br />
<br />
Dominic Morrow has purchased some of these. We will know more about their suitability and properties when they arrive.<br />
<br />
The hole punch must be a '''2 hole''' punch set to '''A6''' size. The holes are then punched from each side of the A4 clear binder cover/transparency. This is shown in the image to the left here. <br />
<br />
[[File:Hole punch instructions.png|thumb|left|400px|Instructions for hole punching]]<br />
<br />
== Packaging ==<br />
<br />
Advice from NUH contact regarding the official NHS masks: '"we can't autoclave the OFFICIAL shields we get because they have foam parts, they have to go in the bin" and that "the ones we get from the NHS centrally turn up in boxes, not bags, they're not clinically clean. They DO have a bit of film over them, like a racing drivers visor, but that's just to stop stretches in transit. What you're making as long as you take basic precautions, will work well for us at this time."'<br />
<br />
On that basis, we are assuming that provided the masks are produced in conditions where there is no known risk of COVID-19 (i.e. none of the conditions for self-quarenteen are met) and the masks and materials are handled with clean hands then they may be delivered without any special cleaning or packaging.<br />
<br />
== Safety Concerns ==<br />
<br />
Please do not compromise your own safety, or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
FDM prints leave a lot of small microscopic holes in the surface, which can harbour bacteria. While not much can be done about this, and it isn't ideal, we have been told that it's currently a case of "anything is better than nothing", and that cleaning will be rigorous. For now it is probably a good idea to try to seal the surface of FDM prints with a surface sealer, epoxy, or with a flame if those aren't available. Laser cutting may be a better option but, again, FDM prints are better than nothing.<br />
<br />
== Delivery ==<br />
<br />
Locations known to have an interest include:<br />
* Bulwell Riverside<br />
* St Anns Wells Health Centre<br />
* Mary Potter Health Centre<br />
* Clifton Conerstone<br />
* NCGPA at Upper Parliament St.<br />
* Nottingham University Hospital<br />
<br />
NOTE that we are still lacking details on how best and when to deliver to these locations. If you find specific information on their level of need and preferred delivery method then please add this to the Wiki.<br />
<br />
There may be a pick-up arrangements too, TBA.<br />
<br />
== Important Slack Messages ==<br />
<br />
The following messages were copied from Slack, as they contain particularly helpful information:<br />
<br />
:'''[https://nottinghack.slack.com/archives/C010BT8CALA/p1585162815198800 geoff hampson (2020-03-25 7:00PM)]''': My opinion for what it is worth is if we want to be able to manufacture these in the quantities that are going to be required then it needs to be laser cut. Even with lots of people 3D printing parts the capability just won't be there. The laser cut version looks ok, but I think with a big bed some parts could be combined and I think with the right design the parts could slot together eliminating the need for the plastic rivets. What will also be essential in production is processes to ensure that the parts aren't contaminated otherwise the finished items won't be able to be used for days. We can't risk ppe being supplied with Coronavirus on it.<br />
<br />
<hr /><br />
<br />
:'''[https://nottinghack.slack.com/archives/C010BT8CALA/p1585168152216000 DrGandalf (2002-03-25 8:29PM)]''': Hi all. Sorry missed the zoom. In one day have learnt the power and challenge of using Slack, negotiating in the NHS infrastructure and the amazing work our community can do.<br />
:I'll try and summarise from what I know so far and then I'll answer what I can from the medical perspective.<br />
:1. We will need as many visors as we can get.<br />
:2. Because of repeatedly pushing this - hopeful that the universities are able to join in and produce in a large scale.<br />
:3. Your willingness and contributions have blown me away.<br />
:4. I am trying to sort logistics re bands and visors with @Dominic Morrow, @mgoodwin and others.<br />
:5. Re not being medical grade-so far the answer is we need them and better than nothing. If genuine concerns will be single use but more likely one clinician per day.<br />
:6. Regarding the plastic sheet version I am trying to get a better idea from infection control but this will take a day or two unfortunately - bureaucracy still exists.<br />
:7. My next plan is to focus on logistics given you are all in lockdown for collection. Hoping we can arrange a collection service for distribution to ensure your work is used by NHS and social care and not misusing your support. For this reason if you have made anything please use this spreadsheet bit.ly/NottsRC2</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24549Laser Cut COVID-19 PPE2020-03-29T13:24:20Z<p>Chunky: /* Laser Cut Face Shield FAQ */</p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home. We must ensure that '''no risks at all''' are taken.<br />
<br />
We must ensure as much as possible that the PPE/parts come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household COVID-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with [https://www.kitronik.co.uk/ Kitronik] and [https://smokeandmirrors.store/ Smoke & Mirrors] to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|thumb|left|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet, 0.5mm thickness, any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover - 100 to 200 micron thickness seems to be best (''Note: This will '''NOT''' be laser cut - use the hole punch'')<br />
*4. Hole punch with slider for A6 holes.<br />
*5. Clean hands and a way to bag you shields.<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|thumb|left|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|thumb|left|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC '''DOES NOT''' need to be laser cut. Use a standard 2 hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 22, Speed 70 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
----<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''How is this design used in practice?''<br><br />
A. The visors alrady used by the NHS are one-use only. They are used typically used by one member of staff for a day/session. We envisage that these will be used as required by the healthcare worker for their job (potentially for one job or for one day) and will then be thrown away.<br />
<br />
Q. ''Length of visor shield?''<br><br />
A. This design uses a standard sheet of A4 clear plastic as a front shield. This works for most people. This can be cut to length as required by the person wearing it.<br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of material?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater than 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. ''Who are you liaising with?'' <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. ''Do they actually want this stuff?'' <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. ''Should I make shields if no one has said they want them in my area?''<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br><br />
<br />
==Other groups working on similar items==<br />
<br />
We are looking for maufacture and supply locally to Nottingham, UK. <br />
<br />
There are lots of other people working on similar ideas and useful projects. Some are linked here for info:<br />
<br />
* [https://github.com/DoESLiverpool/covid19 DoES Liverpool, UK]<br />
* [https://coronavirustechhandbook.com/home Corona Virus Tech Handbook]<br />
* [https://getusppe.org/ Get Us PPE - US site]<br />
* [https://makezine.com/2020/03/22/whats-plan-c-for-covid-19/ Make Magazine round up of projects]<br />
* [https://www.helpfulengineering.org/ Helpful Engineering - Review of projects] (suggest PPE is most suitable for makers)<br />
* [https://www.3dcrowd.uk/ 3D Crowd for 3D printed masks]</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24548Laser Cut COVID-19 PPE2020-03-29T13:13:00Z<p>Chunky: /* Other groups working on similar items */</p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home. We must ensure that '''no risks at all''' are taken.<br />
<br />
We must ensure as much as possible that the PPE/parts come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household COVID-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with [https://www.kitronik.co.uk/ Kitronik] and [https://smokeandmirrors.store/ Smoke & Mirrors] to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|thumb|left|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet, 0.5mm thickness, any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover - 100 to 200 micron thickness seems to be best (''Note: This will '''NOT''' be laser cut - use the hole punch'')<br />
*4. Hole punch with slider for A6 holes.<br />
*5. Clean hands and a way to bag you shields.<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|thumb|left|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|thumb|left|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC '''DOES NOT''' need to be laser cut. Use a standard 2 hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 22, Speed 70 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
----<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''How is this design used in practice?''<br><br />
A. The visors alrady used by the NHS are one-use only. They are used typically used by one member of staff for a day/session. We envisage that these will be used as required by the healthcare worker for their job (potentially for one job or for one day) and will then be thrown away.<br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of material?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater than 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. ''Who are you liaising with?'' <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. ''Do they actually want this stuff?'' <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. ''Should I make shields if no one has said they want them in my area?''<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br><br />
<br />
==Other groups working on similar items==<br />
<br />
We are looking for maufacture and supply locally to Nottingham, UK. <br />
<br />
There are lots of other people working on similar ideas and useful projects. Some are linked here for info:<br />
<br />
* [https://github.com/DoESLiverpool/covid19 DoES Liverpool, UK]<br />
* [https://coronavirustechhandbook.com/home Corona Virus Tech Handbook]<br />
* [https://getusppe.org/ Get Us PPE - US site]<br />
* [https://makezine.com/2020/03/22/whats-plan-c-for-covid-19/ Make Magazine round up of projects]<br />
* [https://www.helpfulengineering.org/ Helpful Engineering - Review of projects] (suggest PPE is most suitable for makers)<br />
* [https://www.3dcrowd.uk/ 3D Crowd for 3D printed masks]</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24547Laser Cut COVID-19 PPE2020-03-29T13:12:14Z<p>Chunky: /* Laser Cut Face Shield FAQ */</p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home. We must ensure that '''no risks at all''' are taken.<br />
<br />
We must ensure as much as possible that the PPE/parts come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household COVID-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with [https://www.kitronik.co.uk/ Kitronik] and [https://smokeandmirrors.store/ Smoke & Mirrors] to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|thumb|left|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet, 0.5mm thickness, any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover - 100 to 200 micron thickness seems to be best (''Note: This will '''NOT''' be laser cut - use the hole punch'')<br />
*4. Hole punch with slider for A6 holes.<br />
*5. Clean hands and a way to bag you shields.<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|thumb|left|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|thumb|left|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC '''DOES NOT''' need to be laser cut. Use a standard 2 hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 22, Speed 70 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
----<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''How is this design used in practice?''<br><br />
A. The visors alrady used by the NHS are one-use only. They are used typically used by one member of staff for a day/session. We envisage that these will be used as required by the healthcare worker for their job (potentially for one job or for one day) and will then be thrown away.<br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of material?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater than 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. ''Who are you liaising with?'' <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. ''Do they actually want this stuff?'' <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. ''Should I make shields if no one has said they want them in my area?''<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br><br />
<br />
==Other groups working on similar items==<br />
<br />
We are looking for maufacture and supply locally to Nottingham, UK. <br />
<br />
There are lots of other people working on similar ideas and useful projects. Some are linked here for info:<br />
<br />
* [https://github.com/DoESLiverpool/covid19 DoES Liverpool, UK]<br />
* [https://coronavirustechhandbook.com/home Corona Virus Tech Handbook]<br />
* [https://getusppe.org/ Get Us PPE - US site]<br />
* [https://makezine.com/2020/03/22/whats-plan-c-for-covid-19/ Make Magazine round up of projects]<br />
* [https://www.helpfulengineering.org/ Helpful Engineering - Review of projects] (suggest PPE is most suitable for makers)</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24546Laser Cut COVID-19 PPE2020-03-29T13:12:01Z<p>Chunky: /* Laser Cut Face Shield FAQ */</p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home. We must ensure that '''no risks at all''' are taken.<br />
<br />
We must ensure as much as possible that the PPE/parts come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household COVID-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with [https://www.kitronik.co.uk/ Kitronik] and [https://smokeandmirrors.store/ Smoke & Mirrors] to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|thumb|left|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet, 0.5mm thickness, any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover - 100 to 200 micron thickness seems to be best (''Note: This will '''NOT''' be laser cut - use the hole punch'')<br />
*4. Hole punch with slider for A6 holes.<br />
*5. Clean hands and a way to bag you shields.<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|thumb|left|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|thumb|left|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC '''DOES NOT''' need to be laser cut. Use a standard 2 hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 22, Speed 70 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
----<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''How is this design used in practice?''<br />
A. The visors alrady used by the NHS are one-use only. They are used typically used by one member of staff for a day/session. We envisage that these will be used as required by the healthcare worker for their job (potentially for one job or for one day) and will then be thrown away.<br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of material?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater than 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. ''Who are you liaising with?'' <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. ''Do they actually want this stuff?'' <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. ''Should I make shields if no one has said they want them in my area?''<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br><br />
<br />
==Other groups working on similar items==<br />
<br />
We are looking for maufacture and supply locally to Nottingham, UK. <br />
<br />
There are lots of other people working on similar ideas and useful projects. Some are linked here for info:<br />
<br />
* [https://github.com/DoESLiverpool/covid19 DoES Liverpool, UK]<br />
* [https://coronavirustechhandbook.com/home Corona Virus Tech Handbook]<br />
* [https://getusppe.org/ Get Us PPE - US site]<br />
* [https://makezine.com/2020/03/22/whats-plan-c-for-covid-19/ Make Magazine round up of projects]<br />
* [https://www.helpfulengineering.org/ Helpful Engineering - Review of projects] (suggest PPE is most suitable for makers)</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24545Laser Cut COVID-19 PPE2020-03-28T17:35:48Z<p>Chunky: </p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home. We must ensure that '''no risks at all''' are taken.<br />
<br />
We must ensure as much as possible that the PPE/parts come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household COVID-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with [https://www.kitronik.co.uk/ Kitronik] and [https://smokeandmirrors.store/ Smoke & Mirrors] to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|thumb|left|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet, 0.5mm thickness, any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover - 100 to 200 micron thickness seems to be best (''Note: This will '''NOT''' be laser cut - use the hole punch'')<br />
*4. Hole punch with slider for A6 holes.<br />
*5. Clean hands and a way to bag you shields.<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|thumb|left|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|thumb|left|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC '''DOES NOT''' need to be laser cut. Use a standard 2 hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 22, Speed 70 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
----<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of material?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater than 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. ''Who are you liaising with?'' <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. ''Do they actually want this stuff?'' <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. ''Should I make shields if no one has said they want them in my area?''<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br><br />
<br />
==Other groups working on similar items==<br />
<br />
We are looking for maufacture and supply locally to Nottingham, UK. <br />
<br />
There are lots of other people working on similar ideas and useful projects. Some are linked here for info:<br />
<br />
* [https://github.com/DoESLiverpool/covid19 DoES Liverpool, UK]<br />
* [https://coronavirustechhandbook.com/home Corona Virus Tech Handbook]<br />
* [https://getusppe.org/ Get Us PPE - US site]<br />
* [https://makezine.com/2020/03/22/whats-plan-c-for-covid-19/ Make Magazine round up of projects]<br />
* [https://www.helpfulengineering.org/ Helpful Engineering - Review of projects] (suggest PPE is most suitable for makers)</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24544Laser Cut COVID-19 PPE2020-03-28T17:30:44Z<p>Chunky: </p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home. We must ensure that '''no risks at all''' are taken.<br />
<br />
We must ensure as much as possible that the PPE/parts come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household COVID-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with [https://www.kitronik.co.uk/ Kitronik] and [https://smokeandmirrors.store/ Smoke & Mirrors] to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|thumb|left|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet, 0.5mm thickness, any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover - 100 to 200 micron thickness seems to be best (''Note: This will '''NOT''' be laser cut - use the hole punch'')<br />
*4. Hole punch with slider for A6 holes.<br />
*5. Clean hands and a way to bag you shields.<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|thumb|left|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|thumb|left|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC '''DOES NOT''' need to be laser cut. Use a standard 2 hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 22, Speed 70 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
----<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of material?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater than 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. ''Who are you liaising with?'' <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. ''Do they actually want this stuff?'' <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. ''Should I make shields if no one has said they want them in my area?''<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br><br />
<br />
==Other groups working on similar items==<br />
<br />
We are looking for maufacture and supply locally to Nottingham, UK. <br />
<br />
There are lots of other people working on similar ideas and useful projects. Some are linked here for info:<br />
<br />
* [https://github.com/DoESLiverpool/covid19 DoES Liverpool, UK]<br />
* [https://coronavirustechhandbook.com/home Corona Virus Tech Handbook]<br />
* [https://getusppe.org/ Get Us PPE - US site]<br />
* [https://makezine.com/2020/03/22/whats-plan-c-for-covid-19/ Make Magazine round up of projects]</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24541Laser Cut COVID-19 PPE2020-03-28T15:42:50Z<p>Chunky: /* Laser Cut Face Shields with Acetate Sheet Front */</p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home. We must ensure that '''no risks at all''' are taken.<br />
<br />
We must ensure as much as possible that the PPE/parts come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household COVID-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with [https://www.kitronik.co.uk/ Kitronik] and [https://smokeandmirrors.store/ Smoke & Mirrors] to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|thumb|left|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet, 0.5mm thickness, any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover - 100 to 200 micron thickness seems to be best (''Note: This will '''NOT''' be laser cut - use the hole punch'')<br />
*4. Hole punch with slider for A6 holes.<br />
*5. Clean hands and a way to bag you shields.<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|thumb|left|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|thumb|left|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC '''DOES NOT''' need to be laser cut. Use a standard 2 hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 22, Speed 70 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
----<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of material?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater than 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. ''Who are you liaising with?'' <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. ''Do they actually want this stuff?'' <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. ''Should I make shields if no one has said they want them in my area?''<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br><br />
<br />
==Other groups working on similar items==<br />
<br />
We are looking for maufacture and supply locally to Nottingham, UK. <br />
<br />
There are lots of other people working on similar ideas and useful projects. Some are linked here for info:<br />
<br />
* [https://github.com/DoESLiverpool/covid19 DoES Liverpool, UK]<br />
* [https://coronavirustechhandbook.com/home Corona Virus Tech Handbook]<br />
* [https://getusppe.org/ Get Us PPE - US site]</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24540Laser Cut COVID-19 PPE2020-03-28T15:42:10Z<p>Chunky: /* Laser Cut Face Shields with Acetate Sheet Front */</p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home. We must ensure that '''no risks at all''' are taken.<br />
<br />
We must ensure as much as possible that the PPE/parts come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household COVID-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with [https://www.kitronik.co.uk/ Kitronik] and [https://smokeandmirrors.store/ Smoke & Mirrors] to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|thumb|left|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet 0.5mm any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover 100 to 200 micron thickness seems to be best (''Note: This will '''NOT''' be laser cut - use the hole punch'')<br />
*4. Hole punch with slider for A6 holes.<br />
*5. Clean hands and a way to bag you shields.<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|thumb|left|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|thumb|left|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC '''DOES NOT''' need to be laser cut. Use a standard 2 hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 22, Speed 70 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
----<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of material?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater than 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. ''Who are you liaising with?'' <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. ''Do they actually want this stuff?'' <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. ''Should I make shields if no one has said they want them in my area?''<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br><br />
<br />
==Other groups working on similar items==<br />
<br />
We are looking for maufacture and supply locally to Nottingham, UK. <br />
<br />
There are lots of other people working on similar ideas and useful projects. Some are linked here for info:<br />
<br />
* [https://github.com/DoESLiverpool/covid19 DoES Liverpool, UK]<br />
* [https://coronavirustechhandbook.com/home Corona Virus Tech Handbook]<br />
* [https://getusppe.org/ Get Us PPE - US site]</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24539Laser Cut COVID-19 PPE2020-03-28T15:41:48Z<p>Chunky: /* Laser Cut Face Shields with Acetate Sheet Front */</p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home. We must ensure that '''no risks at all''' are taken.<br />
<br />
We must ensure as much as possible that the PPE/parts come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household COVID-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with [https://www.kitronik.co.uk/ Kitronik] and [https://smokeandmirrors.store/ Smoke & Mirrors] to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|thumb|left|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet 0.5mm any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover 100 to 200 micron thickness seems to be best (''Note: This will '''NOT''' be laser cut - use the hole punch'')<br />
*4. Hole punch with slider for A6 holes (current version needs a 4 hole punch for A4).<br />
*5. Clean hands and a way to bag you shields<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|thumb|left|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|thumb|left|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC '''DOES NOT''' need to be laser cut. Use a standard 2 hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 22, Speed 70 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
----<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of material?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater than 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. ''Who are you liaising with?'' <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. ''Do they actually want this stuff?'' <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. ''Should I make shields if no one has said they want them in my area?''<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br><br />
<br />
==Other groups working on similar items==<br />
<br />
We are looking for maufacture and supply locally to Nottingham, UK. <br />
<br />
There are lots of other people working on similar ideas and useful projects. Some are linked here for info:<br />
<br />
* [https://github.com/DoESLiverpool/covid19 DoES Liverpool, UK]<br />
* [https://coronavirustechhandbook.com/home Corona Virus Tech Handbook]<br />
* [https://getusppe.org/ Get Us PPE - US site]</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24538Laser Cut COVID-19 PPE2020-03-28T15:39:34Z<p>Chunky: /* Laser Cut Face Shield FAQ */</p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home. We must ensure that '''no risks at all''' are taken.<br />
<br />
We must ensure as much as possible that the PPE/parts come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household COVID-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with [https://www.kitronik.co.uk/ Kitronik] and [https://smokeandmirrors.store/ Smoke & Mirrors] to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|thumb|left|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet 0.5mm any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover (This will '''NOT''' be laser cut - use the hole punch)<br />
*4. Hole punch with slider for A6 holes (current version needs a 4 hole punch for A4).<br />
*5. Clean hands and a way to bag you shields<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|thumb|left|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|thumb|left|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC '''DOES NOT''' need to be laser cut. Use a standard 2 hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 22, Speed 70 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
----<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of material?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater than 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. ''Who are you liaising with?'' <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. ''Do they actually want this stuff?'' <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. ''Should I make shields if no one has said they want them in my area?''<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br><br />
<br />
==Other groups working on similar items==<br />
<br />
We are looking for maufacture and supply locally to Nottingham, UK. <br />
<br />
There are lots of other people working on similar ideas and useful projects. Some are linked here for info:<br />
<br />
* [https://github.com/DoESLiverpool/covid19 DoES Liverpool, UK]<br />
* [https://coronavirustechhandbook.com/home Corona Virus Tech Handbook]<br />
* [https://getusppe.org/ Get Us PPE - US site]</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24537Laser Cut COVID-19 PPE2020-03-28T15:38:39Z<p>Chunky: /* Laser Cut Face Shield FAQ */</p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home. We must ensure that '''no risks at all''' are taken.<br />
<br />
We must ensure as much as possible that the PPE/parts come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household COVID-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with [https://www.kitronik.co.uk/ Kitronik] and [https://smokeandmirrors.store/ Smoke & Mirrors] to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|thumb|left|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet 0.5mm any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover (This will '''NOT''' be laser cut - use the hole punch)<br />
*4. Hole punch with slider for A6 holes (current version needs a 4 hole punch for A4).<br />
*5. Clean hands and a way to bag you shields<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|thumb|left|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|thumb|left|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC '''DOES NOT''' need to be laser cut. Use a standard 2 hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 22, Speed 70 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
----<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of materials?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater that 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. ''Who are you liaising with?'' <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. ''Do they actually want this stuff?'' <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. ''Should I make shields if no one has said they want them in my area?''<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br><br />
<br />
==Other groups working on similar items==<br />
<br />
We are looking for maufacture and supply locally to Nottingham, UK. <br />
<br />
There are lots of other people working on similar ideas and useful projects. Some are linked here for info:<br />
<br />
* [https://github.com/DoESLiverpool/covid19 DoES Liverpool, UK]<br />
* [https://coronavirustechhandbook.com/home Corona Virus Tech Handbook]<br />
* [https://getusppe.org/ Get Us PPE - US site]</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24536Laser Cut COVID-19 PPE2020-03-28T15:37:49Z<p>Chunky: /* Other groups working on similar items */</p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home. We must ensure that '''no risks at all''' are taken.<br />
<br />
We must ensure as much as possible that the PPE/parts come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household COVID-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with [https://www.kitronik.co.uk/ Kitronik] and [https://smokeandmirrors.store/ Smoke & Mirrors] to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|thumb|left|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet 0.5mm any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover (This will '''NOT''' be laser cut - use the hole punch)<br />
*4. Hole punch with slider for A6 holes (current version needs a 4 hole punch for A4).<br />
*5. Clean hands and a way to bag you shields<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|thumb|left|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|thumb|left|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC '''DOES NOT''' need to be laser cut. Use a standard 2 hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 22, Speed 70 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
----<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of materials?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater that 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. Who are you liaising with? <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. Do they actually want this stuff? <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. Should I make shields if no one has said they want them in my area?<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br><br />
<br />
==Other groups working on similar items==<br />
<br />
We are looking for maufacture and supply locally to Nottingham, UK. <br />
<br />
There are lots of other people working on similar ideas and useful projects. Some are linked here for info:<br />
<br />
* [https://github.com/DoESLiverpool/covid19 DoES Liverpool, UK]<br />
* [https://coronavirustechhandbook.com/home Corona Virus Tech Handbook]<br />
* [https://getusppe.org/ Get Us PPE - US site]</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24535Laser Cut COVID-19 PPE2020-03-28T15:34:46Z<p>Chunky: /* Other groups working on similar items */</p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home. We must ensure that '''no risks at all''' are taken.<br />
<br />
We must ensure as much as possible that the PPE/parts come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household COVID-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with [https://www.kitronik.co.uk/ Kitronik] and [https://smokeandmirrors.store/ Smoke & Mirrors] to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|thumb|left|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet 0.5mm any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover (This will '''NOT''' be laser cut - use the hole punch)<br />
*4. Hole punch with slider for A6 holes (current version needs a 4 hole punch for A4).<br />
*5. Clean hands and a way to bag you shields<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|thumb|left|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|thumb|left|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC '''DOES NOT''' need to be laser cut. Use a standard 2 hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 22, Speed 70 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
----<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of materials?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater that 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. Who are you liaising with? <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. Do they actually want this stuff? <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. Should I make shields if no one has said they want them in my area?<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br><br />
<br />
==Other groups working on similar items==<br />
<br />
We are looking for maufacture and supply locally to Nottingham, UK. <br />
<br />
There are lots of other people working on similar ideas and useful projects. Some are linked here for info:<br />
<br />
* [https://github.com/DoESLiverpool/covid19 DoES Liverpool]<br />
* [https://coronavirustechhandbook.com/home Corona Virus Tech Handbook]</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24534Laser Cut COVID-19 PPE2020-03-28T15:32:45Z<p>Chunky: /* Notes about the shield: */</p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home. We must ensure that '''no risks at all''' are taken.<br />
<br />
We must ensure as much as possible that the PPE/parts come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household COVID-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with [https://www.kitronik.co.uk/ Kitronik] and [https://smokeandmirrors.store/ Smoke & Mirrors] to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|thumb|left|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet 0.5mm any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover (This will '''NOT''' be laser cut - use the hole punch)<br />
*4. Hole punch with slider for A6 holes (current version needs a 4 hole punch for A4).<br />
*5. Clean hands and a way to bag you shields<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|thumb|left|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|thumb|left|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC '''DOES NOT''' need to be laser cut. Use a standard 2 hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 22, Speed 70 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
----<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of materials?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater that 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. Who are you liaising with? <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. Do they actually want this stuff? <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. Should I make shields if no one has said they want them in my area?<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br><br />
<br />
==Other groups working on similar items==<br />
<br />
We are looking for design and maufacture locally to Nottingham, UK. Thee are lots of other people working on similar ideas and useful projects. They are linked here for info:<br />
<br />
* [https://github.com/DoESLiverpool/covid19 DoES Liverpool]<br />
* [https://coronavirustechhandbook.com/home Corona Virus Tech Handbook]</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24533Laser Cut COVID-19 PPE2020-03-28T15:31:52Z<p>Chunky: /* Other groups working on similar items */</p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home. We must ensure that '''no risks at all''' are taken.<br />
<br />
We must ensure as much as possible that the PPE/parts come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household COVID-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with [https://www.kitronik.co.uk/ Kitronik] and [https://smokeandmirrors.store/ Smoke & Mirrors] to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|thumb|left|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet 0.5mm any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover (This will '''NOT''' be laser cut - use the hole punch)<br />
*4. Hole punch with slider for A6 holes (current version needs a 4 hole punch for A4).<br />
*5. Clean hands and a way to bag you shields<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|thumb|left|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|thumb|left|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC This '''DOES NOT''' need to be laser cut. Use a hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 22, Speed 70 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
----<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of materials?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater that 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. Who are you liaising with? <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. Do they actually want this stuff? <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. Should I make shields if no one has said they want them in my area?<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br><br />
<br />
==Other groups working on similar items==<br />
<br />
We are looking for design and maufacture locally to Nottingham, UK. Thee are lots of other people working on similar ideas and useful projects. They are linked here for info:<br />
<br />
* [https://github.com/DoESLiverpool/covid19 DoES Liverpool]<br />
* [https://coronavirustechhandbook.com/home Corona Virus Tech Handbook]</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24532Laser Cut COVID-19 PPE2020-03-28T15:29:15Z<p>Chunky: </p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home. We must ensure that '''no risks at all''' are taken.<br />
<br />
We must ensure as much as possible that the PPE/parts come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household COVID-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with [https://www.kitronik.co.uk/ Kitronik] and [https://smokeandmirrors.store/ Smoke & Mirrors] to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|thumb|left|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet 0.5mm any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover (This will '''NOT''' be laser cut - use the hole punch)<br />
*4. Hole punch with slider for A6 holes (current version needs a 4 hole punch for A4).<br />
*5. Clean hands and a way to bag you shields<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|thumb|left|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|thumb|left|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC This '''DOES NOT''' need to be laser cut. Use a hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 22, Speed 70 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
----<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of materials?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater that 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. Who are you liaising with? <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. Do they actually want this stuff? <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. Should I make shields if no one has said they want them in my area?<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br><br />
<br />
==Other groups working on similar items==<br />
<br />
We are looking for design and maufacture locally to Nottingham, UK. Thee are lots of other people working on similar ideas. They are linked here for info:<br />
<br />
* [https://github.com/DoESLiverpool/covid19 DoES Liverpool]<br />
*</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24531Laser Cut COVID-19 PPE2020-03-28T15:26:16Z<p>Chunky: /* Collaboration & Points of Contact */</p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home. We must ensure that '''no risks at all''' are taken.<br />
<br />
We must ensure as much as possible that the PPE/parts come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household COVID-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with [https://www.kitronik.co.uk/ Kitronik] and [https://smokeandmirrors.store/ Smoke & Mirrors] to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|thumb|left|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet 0.5mm any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover (This will '''NOT''' be laser cut - use the hole punch)<br />
*4. Hole punch with slider for A6 holes (current version needs a 4 hole punch for A4).<br />
*5. Clean hands and a way to bag you shields<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|thumb|left|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|thumb|left|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC This '''DOES NOT''' need to be laser cut. Use a hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 22, Speed 70 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
----<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of materials?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater that 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. Who are you liaising with? <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. Do they actually want this stuff? <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. Should I make shields if no one has said they want them in my area?<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br></div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24530Laser Cut COVID-19 PPE2020-03-28T15:23:37Z<p>Chunky: /* Safety & Hygiene */</p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home. We must ensure that '''no risks at all''' are taken.<br />
<br />
We must ensure as much as possible that the PPE/parts come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household COVID-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with Kitronik to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|thumb|left|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet 0.5mm any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover (This will '''NOT''' be laser cut - use the hole punch)<br />
*4. Hole punch with slider for A6 holes (current version needs a 4 hole punch for A4).<br />
*5. Clean hands and a way to bag you shields<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|thumb|left|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|thumb|left|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC This '''DOES NOT''' need to be laser cut. Use a hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 22, Speed 70 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
----<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of materials?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater that 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. Who are you liaising with? <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. Do they actually want this stuff? <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. Should I make shields if no one has said they want them in my area?<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br></div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24529Laser Cut COVID-19 PPE2020-03-28T15:20:49Z<p>Chunky: </p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with Kitronik to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|thumb|left|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet 0.5mm any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover (This will '''NOT''' be laser cut - use the hole punch)<br />
*4. Hole punch with slider for A6 holes (current version needs a 4 hole punch for A4).<br />
*5. Clean hands and a way to bag you shields<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|thumb|left|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|thumb|left|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC This '''DOES NOT''' need to be laser cut. Use a hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 22, Speed 70 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
----<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of materials?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater that 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. Who are you liaising with? <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. Do they actually want this stuff? <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. Should I make shields if no one has said they want them in my area?<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br></div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24528Laser Cut COVID-19 PPE2020-03-28T15:14:47Z<p>Chunky: </p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with Kitronik to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|thumb|left|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet 0.5mm any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover (This will '''NOT''' be laser cut - use the hole punch)<br />
*4. Hole punch with slider for A6 holes (current version needs a 4 hole punch for A4).<br />
*5. Clean hands and a way to bag you shields<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|thumb|left|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|thumb|left|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC This '''DOES NOT''' need to be laser cut. Use a hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 70, Speed 22 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
----<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of materials?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater that 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. Who are you liaising with? <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. Do they actually want this stuff? <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. Should I make shields if no one has said they want them in my area?<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br></div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24527Laser Cut COVID-19 PPE2020-03-28T15:09:06Z<p>Chunky: </p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with Kitronik to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|thumb|left|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet 0.5mm any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover (This will '''NOT''' be laser cut - use the hole punch)<br />
*4. Hole punch with slider for A6 holes (current version needs a 4 hole punch for A4).<br />
*5. Clean hands and a way to bag you shields<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|thumb|left|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|thumb|left|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC This '''DOES NOT''' need to be laser cut. Use a hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 70, Speed 22 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of materials?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater that 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. Who are you liaising with? <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. Do they actually want this stuff? <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. Should I make shields if no one has said they want them in my area?<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br></div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24526Laser Cut COVID-19 PPE2020-03-28T15:08:13Z<p>Chunky: </p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort. [[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with Kitronik to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) head band to attach an A4 clear binder cover sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|thumb|left|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet 0.5mm any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover (This will '''NOT''' be laser cut - use the hole punch)<br />
*4. Hole punch with slider for A6 holes (current version needs a 4 hole punch for A4).<br />
*5. Clean hands and a way to bag you shields<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|thumb|right|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
[[File:Hole punch instructions.png|thumb|left|400px|Instructions for hole punching]]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC This '''DOES NOT''' need to be laser cut. Use a hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 70, Speed 22 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of materials?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater that 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. Who are you liaising with? <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. Do they actually want this stuff? <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. Should I make shields if no one has said they want them in my area?<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br></div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=File:Hole_punch_instructions.png&diff=24525File:Hole punch instructions.png2020-03-28T15:07:31Z<p>Chunky: COVID_19 face shield hole punch instructions</p>
<hr />
<div>== Summary ==<br />
COVID_19 face shield hole punch instructions</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24524Laser Cut COVID-19 PPE2020-03-28T15:04:10Z<p>Chunky: </p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort.<br />
<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with Kitronik to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) Head Band to attach an A4 clear binder sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|thumb|left|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet 0.5mm any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover (This will '''NOT''' be laser cut - use the hole punch)<br />
*4. Hole punch with slider for A6 holes (current version needs a 4 hole punch for A4).<br />
*5. Clean hands and a way to bag you shields<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|thumb|left|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC This '''DOES NOT''' need to be laser cut. Use a hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 70, Speed 22 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of materials?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater that 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. Who are you liaising with? <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. Do they actually want this stuff? <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. Should I make shields if no one has said they want them in my area?<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br></div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24523Laser Cut COVID-19 PPE2020-03-28T15:03:32Z<p>Chunky: </p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort.<br />
<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with Kitronik to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) Head Band to attach an A4 clear binder sheet to:<br />
<br />
[https://community.andmirrors.co.uk/uploads/default/original/1X/055e1b092cffcf547533520fb12999cea79d44fa.dxf Covid 19 Facemask - V0.4.dxf]<br />
<br />
NOTE - THIS IS VERSION 0.5 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
[[File:Faceshield_1.jpg|thumb|left|400px|Kitronik Kevin in a prototype]]<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet 0.5mm any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover (This will '''NOT''' be laser cut - use the hole punch)<br />
*4. Hole punch with slider for A6 holes (current version needs a 4 hole punch for A4).<br />
*5. Clean hands and a way to bag you shields<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
[[File:Fceshield_side.jpg|thumb|left|400px|The headband]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC This '''DOES NOT''' need to be laser cut. Use a hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
Seems to cut one headband out of PP in around 1 min 30 seconds. Power 70, Speed 22 (Kitronik laser settings YMMV).<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of materials?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater that 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. Who are you liaising with? <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. Do they actually want this stuff? <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. Should I make shields if no one has said they want them in my area?<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br></div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=File:Fceshield_side.jpg&diff=24522File:Fceshield side.jpg2020-03-28T14:58:47Z<p>Chunky: COVID_19 FaceShield side view</p>
<hr />
<div>== Summary ==<br />
COVID_19 FaceShield side view</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=File:Faceshield_1.jpg&diff=24521File:Faceshield 1.jpg2020-03-28T14:56:44Z<p>Chunky: COVID_19 Faceshield</p>
<hr />
<div>== Summary ==<br />
COVID_19 Faceshield</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24520Laser Cut COVID-19 PPE2020-03-28T14:54:41Z<p>Chunky: </p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort.<br />
<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with Kitronik to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) Head Band to attach an A4 clear binder sheet to:<br />
<br />
Covid 19 Facemask - V0.5.dxf 3 (166.0 KB)<br />
<br />
NOTE - THIS IS VERSION 0.5 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
<br />
Kitronik Kevin in a prototype:<br />
<br />
<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet 0.5mm any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover (This will '''NOT''' be laser cut - use the hole punch)<br />
*4. Hole punch with slider for A6 holes (current version needs a 4 hole punch for A4).<br />
*5. Clean hands and a way to bag you shields<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like [https://www.kitronik.co.uk/materials/polypropylene.html this at Kitronik]<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to [https://www.amazon.co.uk/gp/product/B000YC2UTS this on Amazon]<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC This '''DOES NOT''' need to be laser cut. Use a hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of materials?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater that 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. Who are you liaising with? <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. Do they actually want this stuff? <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. Should I make shields if no one has said they want them in my area?<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br></div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24519Laser Cut COVID-19 PPE2020-03-28T14:53:11Z<p>Chunky: </p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort.<br />
<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with Kitronik to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) Head Band to attach an A4 clear binder sheet to:<br />
<br />
Covid 19 Facemask - V0.5.dxf 3 (166.0 KB)<br />
<br />
NOTE - THIS IS VERSION 0.5 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
<br />
Kitronik Kevin in a prototype:<br />
<br />
<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
*1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
*2. Polypropylene sheet 0.5mm any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
*3. A4 clear acetate/PVC binder cover (This will '''NOT''' be laser cut - use the hole punch)<br />
*4. Hole punch with slider for A6 holes (current version needs a 4 hole punch for A4).<br />
*5. Clean hands and a way to bag you shields<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
*A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like this at Kitronik 10<br />
*An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to this on Amazon 10<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC This '''DOES NOT''' need to be laser cut. Use a hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of materials?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater that 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. Who are you liaising with? <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. Do they actually want this stuff? <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. Should I make shields if no one has said they want them in my area?<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br></div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24518Laser Cut COVID-19 PPE2020-03-28T14:51:38Z<p>Chunky: </p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort.<br />
<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
We have been working with Kitronik to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
Here is the DXF File for laser cutting a Polypropylene (PP) Head Band to attach an A4 clear binder sheet to:<br />
<br />
Covid 19 Facemask - V0.5.dxf 3 (166.0 KB)<br />
<br />
NOTE - THIS IS VERSION 0.5 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
<br />
Kitronik Kevin in a prototype:<br />
<br />
<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
2. Polypropylene sheet 0.5mm any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
3. A4 clear acetate/PVC binder cover (This will '''NOT''' be laser cut - use the hole punch)<br />
4. Hole punch with slider for A6 holes (current version needs a 4 hole punch for A4).<br />
5. Clean hands and a way to bag you shields<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
The shield consists of 2 parts.<br />
<br />
A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like this at Kitronik 10<br />
<br />
An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to this on Amazon 10<br />
<br />
44416E3D-228E-475B-87EF-76EB315840CF<br />
44416E3D-228E-475B-87EF-76EB315840CF.jpg918×1632 66.9 KB<br />
<br />
===Notes about the shield:===<br />
<br />
The plastic sheet acetate/PVC This '''DOES NOT''' need to be laser cut. Use a hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
[[#Laser Cut Face Shield FAQ|PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of materials?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater that 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. Who are you liaising with? <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. Do they actually want this stuff? <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. Should I make shields if no one has said they want them in my area?<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br></div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24517Laser Cut COVID-19 PPE2020-03-28T14:49:34Z<p>Chunky: /* Laser Cut Face Shields with Acetate Sheet Front */</p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort.<br />
<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
This is the DXF File for laser cutting a Polypropylene (PP) Head Band to attach an A4 clear binder sheet to:<br />
<br />
Covid 19 Facemask - V0.5.dxf 3 (166.0 KB)<br />
<br />
NOTE - THIS IS VERSION 0.5 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
<br />
Kitronik Kevin in a prototype:<br />
<br />
<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
2. Polypropylene sheet 0.5mm any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
3. A4 clear acetate/PVC binder cover (This will '''NOT''' be laser cut - use the hole punch)<br />
4. Hole punch with slider for A6 holes (current version needs a 4 hole punch for A4).<br />
5. Clean hands and a way to bag you shields<br />
<br />
PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS<br />
<br />
The shield consists of 2 parts.<br />
<br />
A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like this at Kitronik 10<br />
<br />
An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to this on Amazon 10<br />
<br />
44416E3D-228E-475B-87EF-76EB315840CF<br />
44416E3D-228E-475B-87EF-76EB315840CF.jpg918×1632 66.9 KB<br />
<br />
Notes about the shield:<br />
The plastic sheet acetate/PVC This DOES NOT need to be laser cut. Use a hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS 22.<br />
<br />
We may be running Zoom conference calls and a SLACK channel soon please DO ask about joining.<br />
<br />
IF YOU DO NOT ALREADY HAVE ACCESS TO A LASER CUTTER WE ARE UNABLE TO ARRANGE ACCESS. PLEASE DO NOT TELL US SUCH AND SUCH PLACE HAS A CUTTER. ARRANGE FOR THE LASER CUTTER OWNER TO CONTACT US.<br />
<br />
PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS 22.<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of materials?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater that 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. Who are you liaising with? <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. Do they actually want this stuff? <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. Should I make shields if no one has said they want them in my area?<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br></div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24516Laser Cut COVID-19 PPE2020-03-28T14:47:16Z<p>Chunky: /* Laser Cut Face Shields with Acetate Sheet Front */</p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort.<br />
<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the most up to date information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
<br />
<br />
<br />
This is the DXF File for laser cutting a Polypropylene (PP) Head Band to attach an A4 clear binder sheet to:<br />
Covid 19 Facemask - V0.4.dxf 3 (166.0 KB)<br />
<br />
NOTE - THIS IS VERSION 0.4 which DOES NOT REQUIRE A FOUR HOLE PUNCH - IT USES A TWO HOLE PUNCH AS PER PICTURE BELOW:<br />
<br />
Screenshot 2020-03-28 at 10.45.02.jpg1164×838 130 KB<br />
<br />
Kitronik Kevin in a prototype:<br />
<br />
5C983D31-8CEF-4CB4-A037-5FC39802F7E2<br />
5C983D31-8CEF-4CB4-A037-5FC39802F7E2.jpg918×1632 138 KB<br />
<br />
We have been working with Kitronik to create a laser cut version of the RC1 & RC2 Face Shield for use by at risk, front line medical staff. Due to the scarcity of materials suitable to make an entire face shield in a single laser cut, we’ve adapted a 3D printed design, already accepted by (our local GP alliance &) the NHS in the UK as suitable.<br />
<br />
'''THINGS YOU WILL NEED:'''<br />
<br />
1. A Laser Cutter with bed greater than A3 300mm x 400mm<br />
2. Polypropylene sheet 0.5mm any colour [https://www.kitronik.co.uk/materials/polypropylene.html This for example] <br />
3. A4 clear acetate/PVC binder cover (This will '''NOT''' be laser cut - use the hole punch)<br />
4. Hole punch with slider for A6 holes (current version needs a 4 hole punch for A4).<br />
5. Clean hands and a way to bag you shields<br />
<br />
PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS<br />
<br />
The shield consists of 2 parts.<br />
<br />
A Polypropylene (PP) adjustable head band, this is laser cut from 0.5mm polypropylene sheet of ANY COLOUR like this at Kitronik 10<br />
<br />
An A4 PVC or Acetate Clear Binder Sheet at least 100 microns thick as used for binders and other publications similar to this on Amazon 10<br />
<br />
44416E3D-228E-475B-87EF-76EB315840CF<br />
44416E3D-228E-475B-87EF-76EB315840CF.jpg918×1632 66.9 KB<br />
<br />
Notes about the shield:<br />
The plastic sheet acetate/PVC This DOES NOT need to be laser cut. Use a hole punch on the A6 setting to make holes on either end of the sheet to attach to the polypropylene head band. We will make a set of pictures of a video showing this later.<br />
<br />
The above linked sheet are rapidly becoming a low supply item, it is worth searching around the web for something similar from a different supplier or even try your local BIG STATIONARY STORE especially if they have an online dept. Or you could email or call them.<br />
<br />
PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS 22.<br />
<br />
We may be running Zoom conference calls and a SLACK channel soon please DO ask about joining.<br />
<br />
IF YOU DO NOT ALREADY HAVE ACCESS TO A LASER CUTTER WE ARE UNABLE TO ARRANGE ACCESS. PLEASE DO NOT TELL US SUCH AND SUCH PLACE HAS A CUTTER. ARRANGE FOR THE LASER CUTTER OWNER TO CONTACT US.<br />
<br />
PLEASE READ THE FAQ HERE BEFORE ASKING QUESTIONS 22.<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of materials?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater that 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. Who are you liaising with? <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. Do they actually want this stuff? <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. Should I make shields if no one has said they want them in my area?<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br></div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24515Laser Cut COVID-19 PPE2020-03-28T14:38:04Z<p>Chunky: /* Laser Cut Face Shields with Acetate Sheet Front */</p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort.<br />
<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the information [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
We will update this wiki as soon as the design is finalised.<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of materials?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater that 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. Who are you liaising with? <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. Do they actually want this stuff? <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. Should I make shields if no one has said they want them in my area?<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br></div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24514Laser Cut COVID-19 PPE2020-03-28T14:37:25Z<p>Chunky: </p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort.<br />
<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the information[https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 here on Smoke & Mirrors community site].<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE this page for information and designs for the 3D-printed version]<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of materials?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater that 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. Who are you liaising with? <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. Do they actually want this stuff? <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. Should I make shields if no one has said they want them in my area?<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br></div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24513Laser Cut COVID-19 PPE2020-03-28T14:37:02Z<p>Chunky: /* 3D Print Face Shields with Acetate Sheet Front */</p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort.<br />
<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the information[https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168|here on Smoke & Mirrors community site].<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please see [https://wiki.nottinghack.org.uk/wiki/COVID-19_PPE|this page for information and designs for the 3D-printed version]<br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of materials?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater that 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. Who are you liaising with? <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. Do they actually want this stuff? <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. Should I make shields if no one has said they want them in my area?<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br></div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24512Laser Cut COVID-19 PPE2020-03-28T14:34:41Z<p>Chunky: /* Laser Cut Face Shields with Acetate Sheet Front */</p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort.<br />
<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Please check out the information[https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168|here on Smoke & Mirrors community site].<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
For information about the 3D printed face shields go here. <br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of materials?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater that 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. Who are you liaising with? <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. Do they actually want this stuff? <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. Should I make shields if no one has said they want them in my area?<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br></div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=3D_Printed_COVID-19_PPE&diff=245113D Printed COVID-19 PPE2020-03-28T14:29:58Z<p>Chunky: </p>
<hr />
<div>This page summarises the effort by members to produce and supply personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
'''NOTE: THIS PAGE HAS BEEN FILLED BASED ON CONVERSATIONS ON THE SLACK CHANNEL AND HAS YET TO BE REVIEWED, PLEASE DO NOT TAKE IT AS A SOURCE OF AUTHORITY.'''<br />
<br />
The Slack channel <code>#covid-19-ppe</code> is being used for discussion. The channel is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort.<br />
<br />
If you are able to produce face shields, please log what you can on [http://bit.ly/NottsRC2 this sheet]. The sheet will also be used for organising the collection effort.<br />
<br />
We are trying to coordiante effors for producing visors. We are trying to work to just two standard designs - one 3D printed and one laser cut. We will update this page with both designs once confirmed.<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
Please do NOT travel in order to make these unless totally safe to do so.<br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves, if at all possible. <br />
<br />
Some notes for hygienic packing are given below. <br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing.<br />
<br />
mgoodwin is part of the co-ordination of the shield making locally, and also someone from TechNotts.<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Co-ordination for a similar shield as the 3D printed version, using a laser cut polypropylene hand band. <br />
More information at [[LaserCutCOVID-19_PPE]]<br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
Please note that we '''DO NOT''' yet (as of 2020-03-25) have approval from Infection Control on any specific design. For the moment it is still worth experimenting and making some parts, since every day of delay counts against us, but face shields cannot be donated until approval is obtained.<br />
<br />
The designs we are primarily working with are as follows:<br />
<br />
====[https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and A4 Binding Sheet Face Shield]====<br />
We have successful prints of this already. Our contact at the NHS has asked specifically for this design. <br />
<br />
Members are currently printing 3 different versions of this headband:<br />
<br />
{| class="wikitable"<br />
|-<br />
! Design / File<br />
! Approx. Print time<br />
! Approx. Filament used<br />
! Image<br />
! Details<br />
|-<br />
| [https://media.prusaprinters.org/media/prints/26241/stls/268557_6b14e5f8-3397-4552-8ffa-d34047b0cb03/most-optimal-rc3.stl#_ga=2.177542885.1550124073.1585145144-1280391435.1585145144 The original design] || 60 - 90 Minutes || 10g ||<br />
[[File:Original design.jpg|thumb]]<br />
|| This is the original design of the A4 Binding Sheet Face Shield and is the version which we have originally been asked to produce, and is therefore the preferred version. <br />
If your 3d printer is capable of printing this version quickly and reliably then please use this version.<br />
|-<br />
| [https://wiki.nottinghack.org.uk/wiki/File:Face_Shield_v1_0_2.zip The adapted design] || 60 - 90 Minutes || 10g || <br />
[[File:Adapted design.jpg|thumb|Adapted design]]<br />
|| This design is the same as the above with two very small but important changes: the walls are double the thickness and the hexagonal holes have been removed. <br />
This design will print well on lower quality, less functional 3d printers.<br />
|-<br />
|[https://wiki.nottinghack.org.uk/wiki/File:Face_Shield_-_Adjusted_Design.zip The altered design]|| 30 -45 minutes || 12g || <br />
[[File:Altered design.jpg|thumb|Altered design]]<br />
|| Whilst this design will maintain the same face to screen clearance and utilises the same punched acetates, it is significantly different from the original design. The walls are significantly thicker and the overall height of the band is considerably lower. 3D printers will be much more forgiving with this design (resulting in less failures) and will be able to print this version much quicker. <br />
If your machine has had difficulty in printing the above two designs then please use this design. <br />
If you have a well calibrated machine you may want to attempt printing this version at your machines highest speed to increase your output.<br />
<br />
|}<br />
<br />
<br />
====[https://www.prusaprinters.org/prints/26883-fast-face-shield Fast Face Shield]====<br />
<br />
=== Headbands ===<br />
<br />
PETG filament is being recommended for the headbands because it is more likely to survive autoclaving, but at the moment we are expecting (based on information from DrGandalf) that these masks will be going to clinics, not hospitals, and will therefore not be going through autoclaves. Instead they will be wiped clean, so PLA is also fine for printing the head bands.<br />
<br />
It may be better to laser cut headbands where possible, due to the tendency for FDM prints to produce surfaces that can harbour bacteria. More investigation and research is needed into making headbands on a laser cutter.<br />
<br />
Regarding the FDM surface issue, at the moment we are working on the principle of something being better than nothing. We are still waiting on an official directive from infection control as to what materials and approaches are approved.<br />
<br />
=== Visors ===<br />
<br />
Visors can be made from A4 transparencies, as per the first design above. They can be acquired from Amazon:<br />
<br />
* https://www.amazon.co.uk/dp/B000YC2UTS/<br />
* https://www.amazon.co.uk/dp/B000W4IZN8/<br />
<br />
Dominic Morrow has purchased some of these. We will know more about their suitability and properties when they arrive.<br />
<br />
It may be possible to cut the visors with a laser cutter. Future investigation is required here regarding materials.<br />
<br />
== Packaging ==<br />
<br />
The masks must be cleaned after production, and kept clean during transport and storage. At the moment we intend to vacuum seal the PPE with a regular kitchen vacuum sealer and large sous vide bags. The wet area near the laser cutter should be ideal for cleaning, and the bench next to it can be used for vacuum sealing. Graham Sutherland has volunteered to provide the vacuum sealer, sous vide bags, nitrile gloves, and disinfectant - either as a no-contact drop-off at the hackspace, or as a no-contact pickup from the Sherwood NG5 area.<br />
<br />
The following procedure has been proposed:<br />
<br />
# Put on gloves and eye protection. A face mask or respirator that covers your mouth and nose is also recommended. Open a window for ventilation if possible.<br />
# Wash the wet area down with soap and water, then spray it with disinfectant.<br />
# Spray the vacuum sealer's exterior and interior with disinfectant and dry it carefully with shop towels.<br />
# Set the vacuum sealer up on the adjacent bench.<br />
# Prepare all the necessary sous vide bags and have them ready in the wet area.<br />
# Take a face shield and spray it all over, inside and out, with disinfectant.<br />
# Use shop towels to remove any excess liquid. This is important as alcohol-based disinfectant is flammable.<br />
# Carefully place the shield into the bag.<br />
# Move the bag to the adjacent bench and vacuum seal it.<br />
# Go back to step 6 and repeat until completed.<br />
# Clean the outside of the sealed bags with disinfectant before storing them.<br />
# Clean up, tidy up, dispose of your gloves and shop towels. Celebrate a job well done :)<br />
<br />
The disinfectant spray will likely be composed of 70% isopropyl alcohol, 5% hydrogen peroxide, and 25% water. In terms of safety, think of it like flammable bleach and treat it with care - it may bleach clothing, it is a skin irritant, and you do not want it in your eyes. Splashes or over-spray on skin can be washed away with soap and water. If in eyes flush immediately with eye wash and seek medical attention.<br />
<br />
== Safety Concerns ==<br />
<br />
Please do not compromise your own safety, or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
FDM prints leave a lot of small microscopic holes in the surface, which can harbour bacteria. While not much can be done about this, and it isn't ideal, we have been told that it's currently a case of "anything is better than nothing", and that cleaning will be rigorous. For now it is probably a good idea to try to seal the surface of FDM prints with a surface sealer, epoxy, or with a flame if those aren't available. Laser cutting may be a better option but, again, FDM prints are better than nothing.<br />
<br />
== Important Slack Messages ==<br />
<br />
The following messages were copied from Slack, as they contain particularly helpful information:<br />
<br />
:'''[https://nottinghack.slack.com/archives/C010BT8CALA/p1585162815198800 geoff hampson (2020-03-25 7:00PM)]''': My opinion for what it is worth is if we want to be able to manufacture these in the quantities that are going to be required then it needs to be laser cut. Even with lots of people 3D printing parts the capability just won't be there. The laser cut version looks ok, but I think with a big bed some parts could be combined and I think with the right design the parts could slot together eliminating the need for the plastic rivets. What will also be essential in production is processes to ensure that the parts aren't contaminated otherwise the finished items won't be able to be used for days. We can't risk ppe being supplied with Coronavirus on it.<br />
<br />
<hr /><br />
<br />
:'''[https://nottinghack.slack.com/archives/C010BT8CALA/p1585168152216000 DrGandalf (2002-03-25 8:29PM)]''': Hi all. Sorry missed the zoom. In one day have learnt the power and challenge of using Slack, negotiating in the NHS infrastructure and the amazing work our community can do.<br />
:I'll try and summarise from what I know so far and then I'll answer what I can from the medical perspective.<br />
:1. We will need as many visors as we can get.<br />
:2. Because of repeatedly pushing this - hopeful that the universities are able to join in and produce in a large scale.<br />
:3. Your willingness and contributions have blown me away.<br />
:4. I am trying to sort logistics re bands and visors with @Dominic Morrow, @mgoodwin and others.<br />
:5. Re not being medical grade-so far the answer is we need them and better than nothing. If genuine concerns will be single use but more likely one clinician per day.<br />
:6. Regarding the plastic sheet version I am trying to get a better idea from infection control but this will take a day or two unfortunately - bureaucracy still exists.<br />
:7. My next plan is to focus on logistics given you are all in lockdown for collection. Hoping we can arrange a collection service for distribution to ensure your work is used by NHS and social care and not misusing your support. For this reason if you have made anything please use this spreadsheet bit.ly/NottsRC2</div>Chunkyhttps://wiki.nottinghack.org.uk/index.php?title=Laser_Cut_COVID-19_PPE&diff=24510Laser Cut COVID-19 PPE2020-03-28T14:29:10Z<p>Chunky: </p>
<hr />
<div>This page summarises the effort by members to produce and supply laser cut personal protective equipment (PPE) for NHS staff in response to the current COVID-19 situation.<br />
<br />
This page is a '''NO [https://en.wiktionary.org/wiki/bikeshedding BIKESHEDDING] ZONE''' and should only be used for co-ordination of the manufacturing and distribution effort.<br />
<br />
<br />
== Safety & Hygiene ==<br />
<br />
Please '''do not compromise your own safety''', or that of others, in order to obtain materials or access printers / laser cutters. Follow government guidelines and stay at home.<br />
<br />
We must ensure that '''no risks at all''' are taken with regards to production of visors. <br />
<br />
We must ensure that all visors come from COVID-19 free homes/workshops, handled as little as possible and, if needed, are handled in a hygienic way. If that is not the case then anything produced is not any use. If you or anyone in your household Covid-19 symptoms (however mild) or are self-isolating then any parts you supply could be an infection risk and will not be useful.<br />
<br />
Before and after handling materials ensure you wash your hands following [https://www.who.int/gpsc/clean_hands_protection/en/ WHO guidance]. Use sterile gloves & face mask during production, if at all possible. See more details about reducing contamination in [[#Laser Cut Face Shield FAQ|the FAQ]], below.<br />
<br />
== Collaboration & Points of Contact ==<br />
<br />
DrGandalf on Slack is our NHS contact.<br />
<br />
Geoff Hampson, one of the directors at [https://www.kitronik.co.uk/ Kitronik], is also on the Slack channel. He may be able to help with manufacturing and material supply.<br />
<br />
<br />
== Laser Cut Face Shields with Acetate Sheet Front ==<br />
<br />
Here will be information. <br />
<br />
== 3D Print Face Shields with Acetate Sheet Front ==<br />
<br />
For information about the 3D printed face shields go here. <br />
<br />
== Laser Cut Face Shield FAQ == <br />
<br />
'''Please read this FAQ'''<br />
<br />
Q. ''Is this design suitable/safe/certified/clinically acceptable?''<br><br />
A. Medical Practitioners have told us "the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. The wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc) so risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients." and "My recommendation to workforce will be this is equipment for additional protection that is not certified.<br />
So far not had anyone said no given our current supplies."<br><br />
<br />
Q. ''What anti-contamination process should we follow?'' <br><br />
A. Wash your hands, wipe down the material before cutting. Wear a mask if you have one, or one of the shields. One of our RAMC/NHS contacts said "Regarding Anti contamination: The theoretical risk is that one of you doing this work has viral particles/droplets on your hands as you handle the product as it's being manufactured. Or indeed it has been supplied to you already in this state. We have some evidence of persistence of infectious particles remaining on surfaces for prolonged times. (I'm sure that is exactly why you are asking the question by the way). So what? In reality, the visor acts to protect the wearer from droplets/aerosols and splashes emanating from a patient's airways. the wearer therefore will already be utilising precaution (hand washing/gloves/correct procedures etc so my opinion is that risk is very low and becomes theoretical rather than real when one judges risk/benefit to the wearer, the patient and subsequent patients."<br><br />
<br />
Q. ''Why don't you just make the design out of one piece of materials?''<br><br />
A. We have been unable to source suitable material in bulk. <br><br />
<br />
Q. ''I've made a better design, use it instead.'' <br><br />
A. Thank you, you might want to take some photos and let us know about it, but part of the challenge here is allowing health care official the time to consider iterations. They're busy with other things and seem to respond best to existing items (not theoretical ones) and consistency of offer. "This one is good... we'd like more of this." <br><br />
<br />
Q. ''I know such and such a place or person with a laser cutter, you should contact them for me please?''<br><br />
A. No, please reach out to them yourself. We're busy making shields and fielding questions and organising what we can. If you don't personally have access to a laser cutter, you may not be the decision maker needed to help with this task. Thank you but sorry. We are not able to arrange access to a laser cutter for you, no matter how keen you are.<br><br />
<br />
Q. ''I have a laser cutter of about A5 or A4 size.. can I help?''<br><br />
A. We're not sure. This task is probably better suited to cutters at least A3 and up in bed size thats greater that 300mm x 400mm, Polypropylene can also be tricky to cut if you've not cut it before.<br><br />
<br />
Q. ''Where can I find the cut file/latest cut file?''<br><br />
A. Currently we have it on [https://community.andmirrors.co.uk/t/covid-19-laser-cut-face-shield/168 this forum post at Smoke & Mirrors Community]<br />
<br />
Q. Who are you liaising with? <br><br />
A. This is a good question. We've been dealing with Dr Ghandi of the Nottingham GP Alliance https://www.ncgpa.org.uk/ who is now liaising directly with Dominic Morrow as the SLACK is too noisy to effectively communicate to the group that way. We have also contacted the NUH https://www.nuh.nhs.uk/ currently there is demand for 3D printed version of the RC3 remix face shield https://www.prusaprinters.org/prints/26241-face-shield-a4-binding-sheet-easy-punching-rc1-and and a perhaps lower level of trust of the as yet, unseen laser cut shield. <br><br />
<br />
Q. Do they actually want this stuff? <br><br />
A. Busy health care doctors and administrators don't want to be bothered with a lot of questions and decision making that they might have to pass up the line or that they may feel goes against the systems the NHS and other practices have put in place. Ad hoc improvised face shield, we are told, are needed, but we have encountered uncertainty at some levels and parts of what is an over stretched and somewhat pre-occupied organisation. Push on regardless, the shields will be needed! <br><br />
<br />
Q. Should I make shields if no one has said they want them in my area?<br><br />
A. They may be needed later, and desperately, the decision is yours, right now, many clinics aren't sure what they'll need or what they'll be able to get hold of if cases continue at the current predicted rates.<br></div>Chunky