https://wiki.nottinghack.org.uk/index.php?title=Special:NewPages&feed=atom&hideredirs=1&limit=50&offset=&namespace=0&username=&tagfilter=Nottinghack Wiki - New pages [en]2024-03-29T08:30:50ZFrom Nottinghack WikiMediaWiki 1.35.1https://wiki.nottinghack.org.uk/wiki/2024-04-03_Agenda2024-04-03 Agenda2024-03-26T18:49:57Z<p>Asj: Created page with "===Agenda=== *'''In the Chair:''' tbd *'''Taking Minutes: ''' tbd *'''Location:''' Blue Room and Zoom As an action from our previous meeting, thi..."</p>
<hr />
<div>===Agenda===<br />
<br />
*'''In the Chair:''' tbd<br />
*'''Taking Minutes: ''' tbd<br />
<br />
*'''Location:''' Blue Room and Zoom<br />
<br />
As an action from our [[2024-03-06 Transcript|previous meeting]], this will be our first with a ''Happenings'' section, providing an opportunity to talk about the social gatherings over the past month which don't really fall into the category of an event.<br />
<br />
{| class="wikitable"<br />
!#!!Item!!Notes!!Owner<br />
|-<br />
|1||Roll call|| || All<br />
|-<br />
|2||Announcements and Events||<br />
* Hack the Space Day - Next one?<br />
* [[EMF Camp 2024|EMF Camp Planning Session]] - Next one?<br />
* Radio Meetup - Wednesday 10th April at 7pm.<br />
<br />
'''Idea for an event?''' Please do it!<br />
|| All<br />
|-<br />
|3||Actions & Minutes of Last Meeting||<br />
[[2024-03-06 Transcript|6th March - Members Meeting]]<br />
<br />
Happenins agenda item has been added - up next. Thank you for suggesting this agenda item.<br />
|| [[Trustees]]<br />
|-<br />
| 4 || Happenings || What's been going on? || All <br />
|-<br />
| 5 || Laser Cutter ||<br />
* Free re-inductions have now been completed<br />
* Huge thanks for laser team, especially Emily!<br />
|| [[Trustees]] and [[Team:Laser]]<br />
|-<br />
| 6 || Metalworking Downstairs || Update on new metalworking area<br />
|| [[Trustees]]<br />
|-<br />
| 7 || Volunteers||<br />
* Many teams still lacking members<br />
* Inviting discussion about how to handle this<br />
|| [[Trustees]]<br />
|-<br />
| 8 ||Team updates|| Updates from teams around the Hackspace<br />
|| [[Teams]]<br />
|-<br />
| 9 ||Trustee Elections||<br />
* Report from the Trustee Open House last week<br />
* Nomination window announcement<br />
|| [[Trustees]]<br />
|-<br />
| 10 ||Financial Update||<br />
Last financial update was end of financial year - [[Financials 2023 September]].<br />
<br />
* [[Financials 2023 October]]<br />
* [[Financials 2023 November]]<br />
* [[Financials 2023 December]]<br />
* [[Financials 2024 January]]<br />
* [[Financials 2024 February]]<br />
<br />
A brief report was provided for the last meeting.<br />
|| Treasurer<br />
|-<br />
| 11 ||Any Other Business|| || All<br />
|}<br />
<br />
{{note|Any Other Business. That is for items that are prompted by discussion during the meeting.}}<br />
<br />
[[Category:Member's Meetings|^Year 13^]]</div>Asjhttps://wiki.nottinghack.org.uk/wiki/Combat_Robot_WorkshopsCombat Robot Workshops2024-03-26T10:29:48Z<p>Moop: </p>
<hr />
<div>{{Project<br />
|image=<br />
|name=<br />
|primary=[[User:McMullet|McMullet]]<br />
|created=<br />
|completeddate=<br />
|dormantdate=<br />
|version=<br />
|members=[[User:McMullet|McMullet]], [[User:Moop|Moop]]<br />
|status=Active<br />
|type=Member<br />
|livestatus=<br />
|qrmode=1<br />
|LookingforCollaborators=Yes<br />
}}<br />
<br />
=Standard Kit of Parts=<br />
<br />
* Receiver<br />
** M-Link Plus with built in motor controllers<br />
** M-Link Lite with servo outputs<br />
** Malenki Nano with built in motor controllers - https://shop.bristolbotbuilders.com/product/malenki/?v=79cba1185463<br />
** FlySky receiver - https://shop.bristolbotbuilders.com/product/flysky/?v=79cba1185463<br />
* ESC is required<br />
** BBB Dual ESC - https://shop.bristolbotbuilders.com/product/bbbv3/?v=79cba1185463<br />
** 2x motor mounted ESC - https://shop.bristolbotbuilders.com/product/redesc/?v=79cba1185463<br />
* 2x 600 RPM N20 gear motors - https://shop.bristolbotbuilders.com/product/600n20/?v=79cba1185463<br />
* DuPont connector pigtails for motors - bespoke<br />
* JST battery connector - https://shop.bristolbotbuilders.com/product/jst/?v=79cba1185463<br />
* Switch - https://shop.bristolbotbuilders.com/product/switch/?v=79cba1185463<br />
* Battery<br />
** 2S LiPo (!)<br />
** 4S NiMh<br />
** 9V rechargable<br />
** Appropriate charger<br />
* Wheels<br />
** 34mm antweight wheels - https://shop.bristolbotbuilders.com/product/wheels/?v=79cba1185463<br />
** 3D Printed wheels or hubs - bespoke<br />
<br />
<br />
BBB AntWeight drive kit may be worthwhile depending on desired options - https://shop.bristolbotbuilders.com/product/antkit/?v=79cba1185463<br />
<br />
=Optional Kit Parts=<br />
<br />
* Servo - https://shop.bristolbotbuilders.com/product/servo/?v=79cba1185463<br />
* Additional motor<br />
* 44mm wheels - https://shop.bristolbotbuilders.com/product/44mmwheels/?v=79cba1185463<br />
* Other larger wheels<br />
* Pololu 22T track set - https://www.pololu.com/product/3030<br />
<br />
=Building Materials=<br />
<br />
==Bespoke Parts==<br />
<br />
* Laser cut chassis<br />
* 3D printed motor mounts<br />
* 3D printed wedgelets<br />
* 3D printed or machined HDPE nutstrip<br />
<br />
==Purchased Additional Parts==<br />
<br />
* Thin polyethelene sheet<br />
* Cable Ties<br />
* 3mm metal rods and 3mm ID tube<br />
* Craft foam and card<br />
* Googly eyes<br />
<br />
==Scavenged Parts==<br />
<br />
* Yoghurt pots<br />
* Milk Cartons<br />
* Cardboard<br />
* Broken toys<br />
* Miscellaneous plastic enclosures<br />
<br />
=Workshop Resources=<br />
<br />
''Add wiring diagrams for different construction methods here''<br />
<br />
=Operational Suggestions=<br />
<br />
==Pre-Solder the Electronics Where Possible==<br />
<br />
From our first and second workshop we determined that the kit of parts should be pre-soldered with connectors and pin headers where possible. Soldering is likely to be offputting to beginners (and eat a lot of time) and too basic for people with soldering experience. Pre-soldering battery connectors where relevant and adding DuPont connectors to motor inputs/ESC outputs allows robots to be quickly assembled and makes it very easy to reverse motors to get robots driving correctly.<br />
<br />
[[Category:Projects]]</div>Moophttps://wiki.nottinghack.org.uk/wiki/Woodworking_Tool_Pledge_(2024)Woodworking Tool Pledge (2024)2024-03-15T18:40:58Z<p>AndrewArmstrong: /* Pledges */</p>
<hr />
<div>Over the years, the woodworking team has put in tremendous effort to keep these tools well maintained and repaired. However, you may have noticed that more recently, quite a few of the larger woodworking tools are out of order, and have been for some time now. This includes some of the larger, more essential tools, such as the two large bandsaws, the bobbin sander and the disc sander. This pledge drive is to replace the tools which are now beyond repair. While the space is doing better financially than it was before minimum membership payments were introduced, we are not in a position to purchase these tools outright. The space will however aim to "top up" the pledge if we are slightly short of the required goal. Your contributions to the pledge drive are very much needed and will be appreciated for many years.<br />
<br />
== What we're getting ==<br />
<br />
'''Note:''' work in progress...<br />
<br />
* [https://www.ebay.co.uk/itm/145654502774 Charnwood USED W730 14" Woodworking Bandsaw] (£374.17) - Two if possible, as it's useful to have one permanently setup for making straight cuts, and another which can be put into different configurations. <br />
* A bobbin sander (recommendations welcome)<br />
* A disc sander (recommendations welcome)<br />
<br />
We will prioritise the purchase of one band saw and the sanders. If we can raise enough, we would like to get a second bandsaw.<br />
<br />
Since we are still undecided about which exact brand/model to get, the pledge is set for £1000 but this will be adjusted as we firm up the plans.<br />
<br />
== Pledges ==<br />
<br />
Add your pledge to the bottom of the page if you have a wiki account (the password is the same as your HMS account) but if you can't access let the trustees know. Your pledge money will be requested once the pledge is fulfilled and once we have the money the tools will be purchased.<br />
<br />
'''Please do not make a payment until requested'''<br />
<br />
{| class="wikitable" <br />
|-<br />
! Who<br />
! How Much<br />
! Paid?<br />
! Method Paid<br />
|-<br />
| Aaron Jackson || £50 || ||<br />
|-<br />
| ian Turner || £50 || ||<br />
|-<br />
| Andrew Armstrong || £50 || ||<br />
|-<br />
| .... || || ||<br />
|}<br />
<br />
{{#widget:PledgeTracker|pledgeGoal=1000}}<br />
<br />
[[Category:Pledge Drives]]</div>Asjhttps://wiki.nottinghack.org.uk/wiki/EMF_Camp_2024/2024-03-12_MeetingEMF Camp 2024/2024-03-12 Meeting2024-03-12T21:19:10Z<p>AndrewArmstrong: </p>
<hr />
<div>Attendees: Aaron, Andrew, Gareth, Lucy Rogers, Mike Haber, Sam, James S.<br />
<br />
== Village Questions ==<br />
<br />
* Tables and Chairs prices<br />
<br />
== Transport ==<br />
<br />
* 2M length needed for Ian's tent<br />
<br />
== Workshops ==<br />
<br />
2 people per event and at least 1 to cover other EMF events not sure about responsibilities.<br />
<br />
Put call out for village helpers just need to be on a rota. But you get a ticket allocated to buy!<br />
<br />
== Morning Coffee ==<br />
<br />
* Mike is happy to run<br />
* Tea and Coffee only unless someone else wants to serve<br />
* Maybe get bakery donuts and/or croissants<br />
* Usually mark everything as £1<br />
<br />
== Inventory (stuff to take) ==<br />
<br />
* Take a kettle or two<br />
<br />
== Purchase List (things to buy) ==<br />
<br />
* Small tea urns (10L for £60)<br />
* Blank mugs. £1.70 maybe online.<br />
* Stickers for mugs and laptops - maybe just simple H. One colour £35 for 1M squared.<br />
* Snackspace Contents List<br />
* Food:<br />
** 2 nights of food might be good. Mass food for around 10-15 people.<br />
** Bean Stew and Rice<br />
** Vegetable Curry with Rice or Chips (or we can buy it from a chippy)<br />
** Get stuff from Makro just need an ingredients list<br />
* Badge designs:<br />
** Gareth might be able to get a design done with Steve<br />
<br />
== Gareth Art ==<br />
<br />
* Will use the classroom for testing the layout and projector - 2M radius projection</div>AndrewArmstronghttps://wiki.nottinghack.org.uk/wiki/2024-03-06_Transcript2024-03-06 Transcript2024-03-06T22:16:51Z<p>Asj: </p>
<hr />
<div> <br />
'''Roll Call:''' Betty, Aaron, Edgar, Gareth, Bob, Malcolm, Ali, Steve, Chris R, Andrew W <br />
<br />
'''Events'''<br />
<br />
Hack the Space Day - 9th March, starting at 10am <br />
<br />
Woodworking with Ian very successful<br />
<br />
EMF Camp Planning Session - 12th March, starting 8pm. Blue Room and Zoom.<br />
<br />
'''Actions from last meeting'''<br />
<br />
Nothing from last month.<br />
<br />
'''Laser Inductions'''<br />
<br />
Emily and the Laser Team have done ~80 re-inductions. Amazing work - thank you Emily.<br />
<br />
'''Metalworking Downstairs'''<br />
<br />
Douglas has been contacting builders, waiting for responses regarding electrics. <br />
Does anyone know anyone that can give us a quote?<br />
<br />
Jobs that still need doing: Stud wall and electrician.<br />
<br />
Regarding training at WNC - College are proposing Easter. Betty has pushed for February but they do not have the staff. We want to run both milling/turning and welding at the same time. Proposing March 30th and 31st. Info to come in metalworking channel.<br />
<br />
Bob mentions that last time they were fairly happy to cut sheet metal on their (metal) laser cutter. Might be worth trying to twist their arm and get some cutting done 🙂<br />
<br />
'''Call for Volunteers'''<br />
<br />
We need some more help in teams. Even the laser team, while quite large, needs more help with inductions etc. An email has been sent out asking for this. The space is being used quite heavily so even a bit of cleaning is a huge help. Spread the word etc.<br />
<br />
'''Team Updates'''<br />
<br />
Craft Room - all fine. Embroidery machine is working fine.<br />
<br />
Laser - see above.<br />
<br />
Woodworking - Bob and Andrew will have a look around and test tools at Hack the Space day.<br />
<br />
Overall - some tools seem to disappear, probably need to buy some new stuff like screw drivers and pliers etc. Andrew will ask Ian about tools missing from woodworking as he's recently done the woodworking sessions.<br />
<br />
'''Trustee Elections'''<br />
<br />
We are going to have an open house at 27th of March - in person only, here in the Blue Room. This is an opportunity to ask questions about being a trustee etc.There will be four positions, Mike and Douglas may re-run, but Steve and Andrew cannot.<br />
<br />
'''Financial Update''' <br />
<br />
<pre><br />
| TSB Balance | Profit/Loss <br />
Oct | £24,853.91 | Income (Profit) £261 <br />
Nov | £25,173.44 | Income (Profit) £7 <br />
Dec | £25,535.52 | Income (Profit) £260 <br />
Jan | £25,127.18 | Income (Profit) £202 <br />
Feb | £25,850.21 | Income (Profit) £285 <br />
<br />
| Membership | Membership Donations<br />
Oct | £2605 | £2967<br />
Nov | £2560 | £2687<br />
Dec | £2495 | £2607<br />
Jan | £2735 | £2900<br />
Feb | £2605 | £2629<br />
</pre><br />
<br />
It's nice to see we are positive each month so far during this financial year.<br />
<br />
'''Any Other Business'''<br />
<br />
Gareth asks about Hack the Space thread on Discord - something about a fire? Possibly someone smoking, not our unit, but there was some smoke and the fire brigade were called. It was mentioned that the fire alarms are not loud enough (can't head while using the laser cutter). Hopefully the fire brigade will be in touch with Bizspace about this. The fire alarm does not call the fire brigade. Please call them once you are out of the space.<br />
<br />
Gareth asks about Teams. Lots of informal organising in the space which has not been articulated anywhere - e.g. social activity, films and ukulele, gaming, etc. It's nice to say this. Mentions that people not in teams also help out with the space. If anyone wants to organise stuff then do! The stuff that Sam and Steve have been doing with combat robots is really good too - it's an event in some sense, a nice community thing to have in the space. <br />
<br />
Ali mentions that this stuff doesn't necessarily need structure to such things, but it's really great to have this activity back in the space. <br />
<br />
Gareth mentions maybe include a bit of time to talk about what's been going on in the space - we can add this to the minutes. A "Happenings" section in the Agenda of meeting. <br />
<br />
Aaron mentions there was a small queer meetup for food in the space yesterday which is nice to see.<br />
<br />
Betty mentions things are a bit different to 4-5 years ago - events happen more organically.<br />
<br />
Gareth mentions Duncan recently posted that he was coming into the space and is available to hang out - this is nice and helps improve the community feel of the space. <br />
<br />
Betty mentions that during the tour we need be a bit clearer about some of the rules. With another potential fire in the building, we need to express very clear about an absolute zero-tolerance policy to sleeping in the space. This will result in a ban. No naps either. While the building has fire alarms, it might not be possible to hear it over machinery.<br />
<br />
'''Thanks everyone - Meeting closed.'''<br />
<br />
[[Category:Member's Meetings|^Year 13^]]</div>Asjhttps://wiki.nottinghack.org.uk/wiki/2024-03-06_Agenda2024-03-06 Agenda2024-03-02T21:33:24Z<p>Asj: </p>
<hr />
<div>===Agenda===<br />
<br />
*'''In the Chair:''' <br />
*'''Taking Minutes: ''' <br />
<br />
*'''Location:''' Blue Room and Zoom<br />
<br />
{| class="wikitable"<br />
!#!!Item!!Notes!!Owner<br />
|-<br />
|1||Roll call|| || All<br />
|-<br />
|2||Announcements and Events||<br />
* Hack the Space Day - 9th March! This weekend<br />
* Woodworking with Ian - 3rd Session, Sunday Feb 11th @ 11am<br />
* [[EMF Camp 2024|EMF Camp Planning Session]] - 4rd Session, Tuesday March 12th @ 8pm<br />
<br />
'''Idea for an event?''' Please do it!<br />
|| All<br />
|-<br />
|3||Actions & Minutes of Last Meeting||<br />
[[2024-02-07 Transcript|7th February - Members Meeting]]<br />
|| [[Trustees]]<br />
|-<br />
| 4 || Laser Cutter || Update on Re-Inductions || [[Trustees]] and [[Team:Laser]]<br />
|-<br />
| 5 ||Metalworking Downstairs|| Update on new metalworking area<br />
|| [[Trustees]]<br />
|-<br />
|6||Volunteers||<br />
* Upcoming email requesting volunteers / new team members.<br />
* Which teams require additional members?<br />
|| [[Trustees]]<br />
|-<br />
|7||Team updates|| Updates from teams around the Hackspace<br />
|| [[Teams]]<br />
|-<br />
|8||Trustee Elections||<br />
Trustee Open House on Wednesday 27th March at 8PM, in person only, Blue Room.<br />
|| [[Trustees]]<br />
|-<br />
|9||Financial Update||<br />
Last financial update was end of financial year - November.<br />
<br />
* [[Financials 2023 October]]<br />
* [[Financials 2023 November]]<br />
* [[Financials 2023 December]]<br />
* [[Financials 2024 January]]<br />
|| Treasurer<br />
|-<br />
|10||Any Other Business||<br />
<br />
|| All<br />
|}<br />
<br />
{{note|Any Other Business. That is for items that are prompted by discussion during the meeting.}}<br />
<br />
[[Category:Member's Meetings|^Year 13^]]</div>Asjhttps://wiki.nottinghack.org.uk/wiki/EMF_Camp_2024/2024-02-12_MeetingEMF Camp 2024/2024-02-12 Meeting2024-02-12T21:07:28Z<p>AndrewArmstrong: </p>
<hr />
<div>Attendees: Aaron, Andrew, Jason A, James, Jason H, Samisi, Colette, Sam.<br />
<br />
Meeting aim: Figure out who is going, workshop planning, item planning.<br />
<br />
== Notes ==<br />
<br />
Aaron explained what happened in past years. Andrew added about our tent.<br />
<br />
Tickets:<br />
* Jason H: May attend interested in electronics<br />
* Colette: Crafting (knit, crochet, sewing machine maybe Embroidery) or Arduino<br />
* Samisi: Knitting maybe<br />
<br />
=== Workshops ===<br />
<br />
Will have to make a nice table of events so we know who wants to help with what.<br />
* Name of event<br />
* Description<br />
* Preferred time to run event (morning/afternoon/evening)<br />
* Primary organiser<br />
* Helpers<br />
* Age range<br />
* Amount of attendees<br />
* Cost for attendee<br />
* Things to buy / notes / etc.<br />
<br />
Crafting: We'll see who might want to do crafts now Betty can't make it<br />
* Maybe do something check what Betty was going to take<br />
<br />
Robot arena: Sam, James to assist<br />
* Simpler workshop then the Hackspace workshop<br />
* Kit and robot fighting<br />
* Wifi boards connecting to the phone<br />
* Free form<br />
<br />
Tie-dying: Becky<br />
* Lab coats may need purchasing<br />
<br />
Role playing games: Duncan, Andrew<br />
* D&D<br />
* Put down if interested contact to run your own drop in session<br />
<br />
Board games:<br />
* Possible evening event just needs a person covering<br />
<br />
Solargraphy workshop: Gareth<br />
* Can be daytime (paper won't be affected too long) inside the tent<br />
<br />
Barbot v2: Jason A<br />
* May be ran in the evening<br />
* TBC: Will decide soonish if need evening time and what times<br />
<br />
Arduino workshop: Jason A<br />
* Intermediate Arduino workshop<br />
* Interface with things<br />
* Libraries and importing and connecting things<br />
* Boards may be sold as part of the workshop<br />
<br />
MiniPOV3 kits: JonW<br />
* Evening event<br />
<br />
Electronics: Badge Kits / GPIO: Duncan / Andrew<br />
* Hour for this basic soldering experience<br />
<br />
=== Village Food ===<br />
<br />
Morning village food:<br />
* Tea and Coffee will be fine (getting a tea urn)<br />
** Kettle would be a good idea too<br />
* Milk<br />
* Sausages<br />
** Hot plate and frying pan<br />
* Fridges needed<br />
<br />
Evening food:<br />
* Chilli evening<br />
** Saucepans needed<br />
* Possibly Air Fryer if purchased (can cook sausages etc.)<br />
<br />
Snackspace:<br />
* Tea and coffee (Bring your own mug!)<br />
* Blank mugs (Jason might try and engrave them with the rotary tool. Duncan might know how to use it) would be good, can sell them 50 - 100.<br />
* Cans, sweets (pick a mix and stuff), crisps<br />
* Pot noodles<br />
* Stickers for Hackspace - Gareth<br />
* Hackspace Passport stamp<br />
<br />
=== Transport ===<br />
<br />
James will use his van.<br />
* 3 euro palettes capacity<br />
* Will likely leave van on site but we'll see<br />
<br />
=== Projection Mapping as Art Installation ===<br />
<br />
Gareth:<br />
* Projecting onto a building - make a big disk perhaps in quarters<br />
* Outside, generally night time<br />
* Nice art installation to show off<br />
* Waterproof extension lead<br />
* Gareth will sort a waterproof projector box<br />
* Need to take some tape + cones potentially to mark area<br />
* James can transport the bits down</div>AndrewArmstronghttps://wiki.nottinghack.org.uk/wiki/2024-02-07_Transcript2024-02-07 Transcript2024-02-07T20:42:44Z<p>Asj: </p>
<hr />
<div>'''Roll Call:''' Steve, Aaron, Ian T, Andrew W, Gareth, Ali, Sam, Edgar, Douglas, Chris R, Daniel, Luke C <br />
<br />
'''Announcements and Events'''<br />
<br />
(definitely didn't copy and paste from the agenda)<br />
<br />
Hack the Space Day - When?<br />
Swap Shop - Saturday Feb 10th @ 12pm<br />
Woodworking with Ian - 3rd Session, Sunday Feb 11th @ 11am<br />
EMF Camp Planning Session - 3rd Session, Monday Feb 12th @ 8pm<br />
Film Night with Pancakes - Friday Feb 16th @ 7pm<br />
Beetle Brawl Watch Party - Saturday Feb 17th @ 11am<br />
Git Workshop (Learn how to contribute to the members' guide) - Wednesday Feb 21st @ 8pm<br />
One Shot Wonders RPG - 29th Feb, 7pm<br />
<br />
Please let us know if you have any ideas for other events.<br />
<br />
We also need to choose a date for the next hack the space day. Next one should be on a Saturday, March 9th. <br />
<br />
Does anyone have any ideas for hack the space day that would require materials? Nope.<br />
<br />
'''Actions and minutes of last meeting:'''<br />
<br />
Ender 3 has not yet been klipperised<br />
<br />
Laser upstairs, and is now on RFID access. Dominic will be working on it tomorrow. Inductions next weekend and week, sessions bookable on Eventbrite.<br />
<br />
Metalworking update: Arranging visit for electicians and electrical quotes.<br />
<br />
The Hackspace rules have been updated to remove misinformation and to make them more current.<br />
<br />
There is now an FAQ. <br />
<br />
Sam has also contributed.<br />
<br />
The planned Git workshop will aid contributions to this. If you want to help out there are some small tasks to do, such as fixing grammar.<br />
<br />
Risk assessments: We are simplifying the process. A template has been defined on thhe Wiki. This helps to keep it consistent. These are all defined by activity, rather than tool (for example milling and turning are combined).<br />
<br />
If you are in a team, if you are able to examine them and check if anything has been omitted, that would be great.<br />
<br />
https://wiki.nottinghack.org.uk/wiki/Category:Risk_Assessments<br />
<br />
Gareth states that it might be ideal to be able to upload specific material safety data sheets. COSHH policy. Lots of work to do involving this.<br />
<br />
Sam states that it is hard to police in the space.<br />
<br />
Makes sense to have the datasheet accessible.<br />
<br />
Difficult to make decisions based on this.<br />
<br />
The only time that boxes are looked through is when members leave the space and the box is disposed off.<br />
<br />
The current risk assessments are based upon those used by Men In Sheds, so should be suitable for insurers. They have been made as simple as possible.<br />
<br />
'''Team updates:'''<br />
<br />
Electronics:<br />
New soldering irons. Datasheets and spare parts Should be easier to maintain. The tips can be changed.<br />
<br />
Laser: The new laser is being commissioned.<br />
<br />
Woodworking: Only yellow bandsaw working. Possibility of buying a new bandsaw. Options may be submitted to the Trustees. May take a while to find something cheaper. Older ones are less well made but don't have spare parts.<br />
The blade guard on the bandsaw is broken. It is a small but non-trivial repair as it is a cast piece of material.<br />
<br />
3d printing: Steve will try and do some resin inductions and try and improve the area around the resin printer.<br />
<br />
'''Financial Update:'''<br />
<br />
No full financial update<br />
<br />
Bank balance is currently at £22280, down somewhat from last month at £26656, however there is a lot of noise in these measurements.<br />
<br />
'''Any other business:'''<br />
<br />
Sam mentions issues with TSB (TSB did an update which broke the scraper), and the system being broken for a week, and there might be an issue in that Matt is the only person who is able to work on the system. Highly automated system but it is really not ideal when it fails.<br />
Possible to have HMS fail more gracefully if there a failed TSB scrape? Aaron states that this should be possible.<br />
<br />
'''Meeting closed''', thanks all for attending! Thanks for Steve for chairing.<br />
<br />
<br />
[[Category:Member's Meetings|^Year 13^]]</div>Asjhttps://wiki.nottinghack.org.uk/wiki/Git_Workshop_(2024)Git Workshop (2024)2024-02-06T22:32:55Z<p>Asj: </p>
<hr />
<div>This workshop was motivated by some edits to the [https://guide.nottinghack.org.uk members guide]. This guide uses a service called Read The Docs, which turns ugly reStructuredText into a (stylish) web site. The members' guide is one example of how Git can be used by "non programmers". This workshop will focus on such use cases, so there is no need to understand how to program, you can still learn to get benefits from Git.<br />
<br />
'''When?''' the 21th of February (2024) at 8pm<br />
'''Where?''' the comfy area because it's comfy<br />
<br />
== What even is Git? ==<br />
<br />
Git is a version control system. There have been many before it, and will likely be many after it. It allows you to maintain a full history of all changes to text, whether that be the members' guide, some software, or your todo list.<br />
<br />
== What will we do? ==<br />
<br />
We'll keep the workshop under 2 hours and will cover the following:<br />
<br />
* Installing Git (you can do this before hand if you like)<br />
* Cloning a repository (what even is a repository?)<br />
* Creating a branch and making a change<br />
* Opening a pull request<br />
<br />
The goal will be to make a contribution to the hackspace members' guide.<br />
<br />
== What do I need? ==<br />
<br />
You will need the following:<br />
<br />
* A GitHub account (you can sign up here https://github.com/signup)<br />
* A laptop - Windows, Linux or Mac is fine.<br />
<br />
== Some Contribution Ideas ==<br />
<br />
You should take a look at our members guide - https://guide.nottinghack.org.uk - there are a bunch of things that can be improved, I'm sure you'll spot many! The idea with Git is to try and constrain changes to a single commit, so we'll just focus on one or two things each for the time being.<br />
<br />
* Replacing instances of "Members Guide" or "Member's Guide" with "Members' Guide"<br />
* Adding a regular event to the Regular Events page, or improving a description<br />
* Improve the description for your favourite area of the space (under the Areas and Room page)<br />
* Give a list of the usual kind of snacks available in Snackspace<br />
* Expand on some of the Team descriptions<br />
<br />
See, lots of ideas. :)<br />
<br />
[[Category:Events]]<br />
[[Category:Skills and learning]]</div>Asjhttps://wiki.nottinghack.org.uk/wiki/Boxford_BGL1390_Laser_CutterBoxford BGL1390 Laser Cutter2024-02-05T11:55:24Z<p>AndrewArmstrong: </p>
<hr />
<div>{{Hacknotice|induction|note=Note, induction costs £20.}}<br />
{{Tool<br />
|image=File:Boxford BGL1390.png<br />
|manufacturer=Boxford<br />
|model=BGL1390<br />
|aka=Boxanne ''(You don't have to put on the red light)''<br />
|obtained=Purchased through Pledge Drive 2023<br />
|obtaineddate=12/09/2023<br />
|team=Laser<br />
|location=Laser Area<br />
|induction=yes<br />
|booking=yes<br />
}}<br />
<br />
The '''Boxford BGL1390''' is the new main laser cutter the Hackspace owns (replacing the [[Silvertail A0 Laser cutter|Silvertail A0]]). It requires both induction and booking / paying for use. See the [[Laser cutter]] page for usage instructions and for information on inductions and bookings.<br />
<br />
As of 04/02/2024 this laser has been moved in place into the laser area and is awaiting setup and is offline. <br />
<br />
The software to use it is Lightburn, a licence can be obtained by emailing the laser team. See [[Laser cutter]] for details.<br />
<br />
[[Category:Computer aided manufacture]]<br />
[[Category:Laser Cutter]]<br />
[[Category:Tools and Equipment]]</div>Jsmithhttps://wiki.nottinghack.org.uk/wiki/RiskAssessments/TestRiskAssessments/Test2024-02-01T23:08:48Z<p>Asj: Asj moved page Team:Safety/Example (Risk Assessment) to Team:Safety/Risk Assessments/Example without leaving a redirect</p>
<hr />
<div>{{RiskAssessment<br />
|name = An Example Tool Usage<br />
|assessmentType = Activity<br />
|reviewed = 2024-02-01<br />
|nextReview = 2025-02-01<br />
<br />
|risk_1 = Noise<br />
|mitigation_1 = Hearing protection is provided in all areas where noisy equipment might be used.<br />New line.<br />
<br />
|risk_2 = Fire<br />
|mitigation_2 = Fire extinguishers are provided nearby.<br />
<br />
}}</div>Asjhttps://wiki.nottinghack.org.uk/wiki/LightburnLightburn2024-01-29T18:30:39Z<p>Asj: </p>
<hr />
<div>Discounted licenses can be obtained by hackspace members by emailing the [[Team:Laser|Laser team]] via laser@nottinghack.org.uk. This is useful for testing the software and preparing your files prior to using the laser cutter.<br />
<br />
== Activating a License and Configuring Lightburn == <br />
<br />
# Email the Laser Team and request a Lightburn license. The Laser Team will generate a discount code which you can use to buy the software<br />
# Purchase a license for [https://lightburnsoftware.com/products/lightburn-dsp LightBurn DSP], which should be £24 - Make sure you enter the discount code.<br />
## Wait for the license to arrive ⌛. It should come through by email.<br />
## Install the software. The first time you open it you will be asked to enter the license information<br />
## Enter your newly purchased license key<br />
# Once the license is activated, the Devices window should appear. You can configure the laser cutter so that the settings will match what we use in the hackspace.<br />
## Click "Create Manually"<br />
## Select the "Rudia" controller from the list and then click next.<br />
## Select Serial/USB and click next<br />
### Set the name to something like "Nottingham Hackspace Boxford"<br />
### Set the work area dimensions to 1300x900, then click next.<br />
## The origin should be the upper-right (confirm once we have it working...), then click next.<br />
## Click Finish. The laser wizard will disappear. Select your new laser cutter and then click OK.</div>Asjhttps://wiki.nottinghack.org.uk/wiki/2024-02-07_Agenda2024-02-07 Agenda2024-01-28T23:12:17Z<p>Moop: </p>
<hr />
<div>===Agenda===<br />
<br />
*'''In the Chair:''' <br />
*'''Taking Minutes: ''' <br />
<br />
*'''Location:''' Blue Room and Zoom<br />
<br />
{| class="wikitable"<br />
!#!!Item!!Notes!!Owner<br />
|-<br />
|1||Roll call|| || All<br />
|-<br />
|2||Announcements and Events||<br />
* Hack the Space Day - '''When?'''<br />
* [[2024_February_Swap_Shop|Swap Shop]] - Saturday Feb 10th @ 12pm<br />
* Woodworking with Ian - 3rd Session, Sunday Feb 11th @ 11am<br />
* [[EMF Camp 2024|EMF Camp Planning Session]] - 3rd Session, Monday Feb 12th @ 8pm<br />
* [[Film Night]] with Pancakes - Friday Feb 16th @ 7pm<br />
* Beetle Brawl Watch Party - Saturday Feb 17th @ 11am<br />
* Git Workshop (Learn how to contribute to the members' guide) - Wednesday Feb 21st @ 8pm<br />
* One Shot Wonders RPG - 29th Feb, 7pm<br />
<br />
'''Idea for an event?''' Please do it!<br />
|| All<br />
|-<br />
|3||Actions & Minutes of Last Meeting||<br />
[[2024-01-03 Transcript|3rd January - Members Meeting]]<br />
|| [[Trustees]]<br />
|-<br />
| 4 || Laser Cutter || Planning and Re-inductions || [[Trustees]] and [[Team:Laser]]<br />
|-<br />
| 5 ||Metalworking Downstairs|| Update on new metalworking area<br />
|| [[Trustees]]<br />
|-<br />
|6||Rules, Member's Guide and Risk Assessments||<br />
Discussing the updates and how you can contribute<br />
|| [[User:Asj|Aaron]] / Trustees<br />
|-<br />
|7||Team updates|| Updates from teams around the Hackspace<br />
* Electronics Team, new soldering irons<br />
* Laser Team, discussed earlier<br />
* Woodworking Team, bandsaw blade guide has broken<br />
|| [[Teams]]<br />
|-<br />
|8||Financial Update||<br />
Last financial update was end of financial year - November.<br />
<br />
* [[Financials 2023 October]]<br />
* [[Financials 2023 November]]<br />
* [[Financials 2023 December]]<br />
|| Treasurer<br />
|-<br />
|9||Any Other Business||<br />
<br />
|| All<br />
|}<br />
<br />
{{note|Any Other Business. That is for items that are prompted by discussion during the meeting.}}<br />
<br />
[[Category:Member's Meetings|^Year 13^]]</div>Asjhttps://wiki.nottinghack.org.uk/wiki/2024_February_Swap_Shop2024 February Swap Shop2024-01-25T23:03:32Z<p>Drjonwoodcock: /* Book A Table */</p>
<hr />
<div>== 01 811 8055! ==<br />
10th Feb. Relive your youth. Or relive old peoples youth with Saturday Swap Shop. Bring good stuff you don't want for people who will find it useful.<br />
Find ideas and material for projects!<br />
<br />
Please bring useful stuff, not the rammel from the back of the shed! <br />
<br />
==Saturday Hackspace Swap Shop==<br />
<br />
We're planning an event where people can bring and swap, sell or donate to the space 'Hackspace type things'.<br />
<br />
It will be in the studio. Proposed time 12.<br />
<br />
==Rule 1==<br />
Nothing stays at the space after the event. Do not leave stuff as a large project. Take home things '''you''' want, take home things '''you brought that no one wants'''.<br />
<br />
==Book A Table==<br />
<br />
If you're bringing a lot you can book a table. Or half a table. Or just some space. If this gets full we might need to plan.<br />
Please fill in the table if you're bringing stuff, so we know.<br />
<br />
<br />
{| class="wikitable"<br />
|+ Tables<br />
|-<br />
! Table / Half / Space !! Name !! Stuff<br />
|-<br />
| Half || A Person || Example stuff<br />
|-<br />
| Half || [[User:Asj|Asj]] || probably random computer things<br />
|-<br />
| Table || [[User:AndrewArmstrong|Andrew A]] || Computer bits most likely<br />
|-<br />
| Table || DosFox || Computer stuff<br />
|-<br />
| Half Table || Mike || Picade/ Fuze/ Pi/ bits of electronics.<br />
|-<br />
|}<br />
<br />
[[Category:Events]]</div>Asjhttps://wiki.nottinghack.org.uk/wiki/Film_Night_(2024)Film Night (2024)2024-01-20T15:09:47Z<p>Duncan: </p>
<hr />
<div>== Film Night -- watching films for fun and pleasure ==<br />
<br />
Some of us like to take over the comfy room and watch films together for fun and pleasure. <br />
So far we are managing to keep to 2nd Friday of the month as film night. It is not uncommon for attendees to expand these evenings to include a shared meal before the film. If you want to join us we tend to discuss what is happening on the [https://discord.com/channels/1016848183726448660/1053103659300442143 one-shot-wonders] on Discord. When making recommendations it would be really helpful to know if you have access to the film in a format you can bring along. If goes without saying, if we do not have access to the film we cannot watch it.<br />
<br />
===The Knights of Calendar===<br />
<br />
Discord discussion [https://discord.com/channels/1016848183726448660/1195505319820927177 thread] for what to watch in February.<br />
<br />
{| border="1" align="center" style="text-align:center;"<br />
! Date<br />
!Film<br />
!Extras<br />
<br />
|-<br />
| 8th March <br />
| TBD<br />
| Open to suggestions<br />
<br />
<br />
|}<br />
<br />
===The Sorcerers of Suggestion ===<br />
<br />
{| border="1" align="center" style="text-align:center;"<br />
!Recommended for<br />
!Recommended by<br />
! Film<br />
!Notes<br />
<br />
|-<br />
|<br />
| Jason Alexander<br />
| The Duke<br />
|Available on Amazon Prime<br />
<br />
|-<br />
|<br />
| [[User:Asj|Aaron Jackson]]<br />
| Hackers (1995)<br />
| Aaron has DVD. Imagine how good this film would be if it was set in Berlin in the early 90s<br />
<br />
|-<br />
|<br />
| [[User:Asj|Aaron Jackson]]<br />
| Wayne's World (1992)<br />
| Someone surely has it?<br />
<br />
|- <br />
|<br />
| [[User:Asj|Aaron Jackson]]<br />
| WarGames<br />
| VHS... or?<br />
<br />
|- <br />
|<br />
| [[User:Asj|Aaron Jackson]]<br />
| Napoleon Dynamite<br />
| I think it's on Prime<br />
<br />
|-<br />
|<br />
| [[User:Asj|Aaron Jackson]]<br />
| Office Space<br />
| ? - I think I have the DVD of this somewhere - Gareth<br />
<br />
|- <br />
|<br />
| [[user:Asj|Aaron Jackson]]<br />
| Johnny Mnemonic<br />
| Internet Archive (archive.org)<br />
<br />
|-<br />
|<br />
| [[User:Duncan|Duncan Fyfe]]<br />
| The 7th Voyage of Sinbad<br />
| I hazDvd. The great animation work of Ray Harryhausen<br />
<br />
|-<br />
|<br />
| [[User:Duncan|Duncan Fyfe]]<br />
| Westworld<br />
| I hazDvd.<br />
<br />
|-<br />
|<br />
| [[User:Duncan|Duncan Fyfe]]<br />
| Flash Gorgon<br />
| I hazDvd.<br />
<br />
|-<br />
|<br />
| [[User:Duncan|Duncan Fyfe]]<br />
| Lord of The Rings<br />
| I hazDvds.<br />
|}<br />
<br />
===Phantasms of the Past===<br />
<br />
{| border="1" align="center" style="text-align:center;"<br />
!Film<br />
! Date<br />
!Favourite Quote<br />
<br />
|-<br />
| 16th February 2024<br />
| Dune (2021)<br />
| (Vegan) Pancakes due to proximity to pancake day.<br />
<br />
<br />
|-<br />
|Everything Everywhere All at Once<br />
| January 2024<br />
|I saw my life... without you... I wish you could have seen it... it was beautiful.<br />
|-<br />
|Dungeons & Dragons: Honour Among Thieves<br />
| December 2023<br />
|We must never stop failing, because the minute we do, we've failed.<br />
<br />
<br />
|}<br />
[[Category:Events]]</div>Duncanhttps://wiki.nottinghack.org.uk/wiki/EMF_Camp_2024/2024-01-15_MeetingEMF Camp 2024/2024-01-15 Meeting2024-01-15T21:04:46Z<p>Asj: </p>
<hr />
<div>Previous meeting [[EMF_Camp_2024/2023-12-18_Meeting]].<br />
<br />
Attendees: Aaron, Andrew, Jon, Betty, Jason<br />
<br />
Meeting aim: Solidify plans for workshops and who will run them.<br />
<br />
== Notes ==<br />
<br />
* Use some of the ex-member's boxes for storing and grouping together various things we are taking to EMF Camp.<br />
* Contact Graham about whether he's taking a van<br />
** Betty might also drive a van? (if Graham isn't). She's staying in an Air BnB anyway. ("Mansfield Van is £105 Luton, LONG WHEEL BASE VANS£95")<br />
** Kev's Van Rental (Wilford)<br />
** Get permission to go a day early (e.g. Wednesday, May 29th)<br />
* Ask Ian to bring in tent (or we could collect it?)<br />
<br />
== Workshop Proposals ==<br />
<br />
=== Solargraphy ===<br />
<br />
Gareth will figure out costs for materials etc.<br />
<br />
=== Shrinky Jewellery ===<br />
<br />
Betty.<br />
<br />
* Things needed<br />
** Heat gun / mini oven<br />
** <br />
<br />
=== Soldering Workshop ===<br />
<br />
Duncan / Aaron / Jason / ???<br />
<br />
* Things to get<br />
** New soldering irons (check edu pack from Kitronik)<br />
*** Solder iron kit from Kitronik is £12.99 - individual soldering iron for £9. <br />
*** Someone look for some new soldering irons for Electronics area - We can take them to EMF Camp and then bring back for electronics area.<br />
** Soldering kits - keep some aside as spares <br />
*** We have a bunch of Mini POV3 - Column of LEDs which show text as you move it through the air. We'll need to get AA batteries, two per kit. We have more than 20 of these.<br />
**** We sold them in the vending machine for £15<br />
*** We have some old badge kits in Team Storage<br />
*** Maybe some robot kits?<br />
<br />
=== "Get More Ouf Of Your" Arduino Workshop === <br />
<br />
Jason (Aaron can help?)<br />
<br />
We have like 10-20 Arduino Unos in Team Storage<br />
<br />
* Aaron get one out tonight for Jason to test (but we think they should still work :D)<br />
* Elegoo Arduinos (if we needed new ones) are £5 each or so.<br />
* Workshop Aim??<br />
** We provide / give an Arduino<br />
** BYOL (Bring Your Own Laptop)<br />
** Getting over the hurdle of starting to use an arduino. e.g. learning to program them to do something simple (hello world of arduino: flash an LED)<br />
** Maybe more intermediate? Maybe RGB LED thing?<br />
* Jason to provide a list of parts after figuring out what the workshop will be.<br />
* £20 to provide everything, leave with Arduino and parts etc.<br />
<br />
=== Sewing Workshop ===<br />
<br />
Betty<br />
<br />
* Basic hand sewing<br />
* "how to make a bag" (in an hour or two)<br />
* Betty to have a think about what to do and get an idea of what we'll need to buy.<br />
* Embroidery?<br />
* Grant for STEM projects<br />
<br />
=== Non-workshop things ===<br />
<br />
==== Joust ====<br />
<br />
Need Jon to look into getting it running (may require an old laptop).<br />
<br />
==== Evening Meal for people that attend these meetings? :D ====<br />
<br />
== Things to Buy ==<br />
<br />
* Tea urn<br />
* Folding tables? These may be provided by EMF (for a small fee)<br />
* Food for breakfasts!<br />
* Mugs (Aaron to look into printed mugs with Nottingham Hackspace logo on)<br />
* Snackspace stuff (for later), cans, squash/juice, snacks, super noodles, tea, coffee<br />
* First Aid Kit (for the Events Box)<br />
* Evening food (for us)<br />
<br />
'''Things people can lend us?'''<br />
<br />
* Fridge? (Mini freezer? for ice)<br />
* Tent from Ian<br />
* Fairy lights (Betty?)<br />
<br />
'''Things we need to find / gather'''<br />
<br />
* Strip lights<br />
* Arduinos<br />
* Tables<br />
* Fridge<br />
* Kettle<br />
* Stationary / Pens / Markers / Scissors / etc<br />
* Whiteboard (in team storage from Betty)<br />
* Events Box (Table clothes, advertising material, example projects, banner)<br />
* Water barrel<br />
* Donations Box <br />
* Buckets (for cans)<br />
* Hot plate, cooking utensils<br />
* Projector screen / projector, visuals or film later???<br />
* SumUp payment thing<br />
<br />
----<br />
<br />
Next meeting, 12th Feb</div>Asjhttps://wiki.nottinghack.org.uk/wiki/Train_Station_DisplayTrain Station Display2024-01-13T18:38:09Z<p>Asj: </p>
<hr />
<div>{{project<br />
|primary=[[User:Asj|Asj]]<br />
|type=member<br />
|created=13/01/2024<br />
|location=Metalworking<br />
|repo=[https://github.com/AaronJackson/TrainDepartureBoard-Discord GitHub]<br />
|status=Active<br />
|image=File:TDB_WorkingABit.jpg<br />
}}<br />
[[Category:Projects]]<br />
<br />
[[File:Train_Station_Display.jpg|300px|thumbnail]]<br />
<br />
In upstairs metalworking there is a train station display - [https://www.flickr.com/photos/nottinghack/albums/72157629357766648/ photos on flickr]. The display was acquired in October 2011 and hasn't been set up to do anything yet.<br />
<br />
The display seems to use 4-wire MODBUS, and has some DIP switches to configure it's ID (currently 20, as displayed at startup). The registers and commands will be completely undocumented, so bitbanging the display seems like an ''easier'' idea.<br />
<br />
The intention is to display messages from discord (and will be named dispcord accordingly). The time section at the bottom will display the channel name, and the main three lines will show the sender and preview of the message. The [[Discord]] bot already relays messages from non-private channels to MQTT.<br />
<br />
<br />
<br />
== Parts ==<br />
<br />
[[File:IMG_0496.JPG|400px]]<br />
<br />
=== LED Module === <br />
<br />
Each LED module contains an 8x7 grid of LEDs. It looks like the module could take 8x8, but maybe the font used wouldn't benefit from having an extra row.<br />
<br />
The cathodes of each column are connected together, and the anodes of each row are connected together. At the top and bottom of each module, there is a set of 12 male pins which interface with the module backplane. <br />
<br />
<pre><br />
p4 n n p3 n n p2 n n p1 n n<br />
<br />
o o o o o o o o row 1 (via p1 top)<br />
o o o o o o o o row 2 (via p2 top)<br />
o o o o o o o o row 3 (via p3 top)<br />
o o o o o o o o row 4 (via p4 top)<br />
<br />
o o o o o o o o row 1 (via p1 bottom)<br />
o o o o o o o o row 2 (via p2 bottom)<br />
o o o o o o o o row 3 (via p3 bottom)<br />
x x x x x x x x row 4 (via p4 bottom, not populated)<br />
<br />
p4 n n p3 n n p2 n n p1 n n<br />
</pre><br />
<br />
<br />
=== LED Module Backplane === <br />
<br />
Each backplane holds 8 LED modules. There is a 14 pin IDC header on the right of each board, these go to a CD74HCT541E octal buffer.<br />
<br />
<pre><br />
Input IDC header<br />
<br />
solder side header side<br />
+-----+ +-----+<br />
GND -| o o |- A0 GND -| o o |- A6 Strobe<br />
GND -| o o |- A1 Shift2 Di A7 -| o o |- A5 BCD D<br />
GND -| o o |- A2 GND -| o o |- A4 BCD C<br />
? -| o o |- A3 ? -| o o - A3 BCD B<br />
GND -| o o |- A4 GND -| o o |- A2 BCD A<br />
A7 -| o o |- A5 GND -| o o |- A1 Shift1 Di<br />
GND -| o o |- A6 GND -| o o |- A0 Clock<br />
+-----+ +-----+<br />
<br />
(I'm bad at geometry and will get confused :))<br />
<br />
The Mystery Pin (?) appears to be the 5v power for the UDN2982 source drivers. Maybe they drive this directly from the controller since it allows for blanking of all panels in one go. The mystery pin is daisy chained through all panels in the string. This pin also connects to an unpopulated set of components (LK1, LK2, and LK3) that connect to the logic power supply and ground.<br />
<br />
CD74HCT541E<br />
<br />
V O <br />
c E Y Y Y Y Y Y Y Y <---- outputs<br />
c 2 0 1 2 3 4 5 6 7 <br />
+---------------------+<br />
|> CD74HCT541E |<br />
+---------------------+<br />
O A A A A A A A A G<br />
E 0 1 2 3 4 5 6 7 N <--- inputs<br />
1 D<br />
</pre><br />
<br />
Some of the output lines from the line driver go to the shift registers, while others go to a BCD decoder. Each LED Module has two shift registers which are both updated on each clock pulse.<br />
<br />
<pre><br />
CD74HCT541E Outputs<br />
<br />
Y0 - All shift registers, CLOCK<br />
Y1 - Bottom shift register of right-most LED Module, Data In<br />
Y2 - BCD Decoder "A"<br />
Y3 - BCD Decoder "B"<br />
Y4 - BCD Decoder "C"<br />
Y5 - BCD Decoder "D"<br />
Y6 - All shift registers, STROBE<br />
Y7 - Top shift register of the right-most LED Module, Data In<br />
</pre><br />
<br />
The shift registers used are CMOS MIC5821BN<br />
<br />
<pre><br />
MIC5821BN<br />
<br />
O O O O O O O O<br />
1 2 3 4 5 6 7 8<br />
+-----------------+<br />
|> MIC5821BN |<br />
+-----------------+<br />
C S V V S S O V<br />
L i s d o T E e<br />
K s d B e<br />
<br />
Vss, OE and Vee are all tied to ground.<br />
Si is serial in and connects to either Y1 or Y2 of the line driver, or to So of the previous shift register.<br />
<br />
The BCD decoder (CD4028BCN) is used to turn on/off the columns of all LED modules on an LED module backplane, using a MOSFET (IRF540) and octal source driver UDN2981A.<br />
<br />
V<br />
d<br />
d 3 1 B C D A 8<br />
+-----------------+<br />
|> CD4028BCN |<br />
+-----------------+<br />
4 2 0 7 9 5 6 V<br />
s<br />
s<br />
<br />
G<br />
O O O O O O O O N<br />
0 1 2 3 4 5 6 7 D <br />
+-------------------+<br />
|> UDN2981A |<br />
+-------------------+<br />
I I I I I I I I V<br />
0 1 2 3 4 5 6 7 s<br />
<br />
</pre><br />
<br />
=== Backplane Frame ===<br />
<br />
Each LED Module Backplane is arranged on the backplane frame. <br />
<br />
The backplanes are grouped into two. The first group drives 6x8 LED Module backplanes (total of 2688 LEDs) and the second drives 4x8 LED Module backplanes (1792 LEDs). In total there are 4480 LEDs per side.<br />
<br />
<pre><br />
+------------------+------------------+------------------+<br />
| A2 | A1 | A0 | <--- Input<br />
+------------------+------------------+------------------+<br />
| A5 | A4 | A3 |<br />
+------------------+------------------+------------------+<br />
| B2 | B1 | B0 | <--- Input<br />
+------------------+------------------+------------------+<br />
| B3 |<br />
+------------------+<br />
</pre><br />
<br />
== Bit banging... ==<br />
<br />
Not had much luck with this yet, but I'm not sure why. <br />
<br />
Logic analyzer trace of data lines during power on boot message (can be opened with PulseView) [[File:Train_Departure_Board_Logic_Dump.zip]]. Screenshot for convenience below<br />
<br />
[[File:Train_Departure_Board_Logic_Dump.png|700px]]<br />
<br />
'''Note:''' In the screenshot it looks like single clock pulses, but each one of those is 8 pulses. Each clock pulse is about 500ns. Arduino using the IO registers is about 250ns, but this is within the timing recommendations for the shift registers, and I've tried reducing the speed too.<br />
<br />
'''Unanswered and confusing questions'''<br />
<br />
* Why do the two shift registers always receive the same data? My understanding is that one register does the top four rows, and one register does the bottom three rows, but they seem to receive the same data. Very confusing<br />
** They seem to connect to adjacent column inputs on the LED boards, which are then connected together on the LED board itself. This would let you use the same mainboard to drive the LEDs with double the current (with the LED boards we have) or drive double the LEDs (with different LED boards and different data to each shift register).<br />
* Why can't I even get an LED to light up? I leave the shift register data in lines high, multiplex the BCD lines, pulse the clock, do the strobe in the right place (or just leave it high).<br />
* Why does the BCD "D" line only stay high for 68us? And why is it pulsed after each 48 clock pulses? (48 presumably because there are six sets of 8 LED boards?)<br />
** I think this line is for varying the brightness of the display, since enabling it will add 8 to any "enabled" column and result in none turning on.<br />
<br />
Update: I think all of these unanswered questions have been answered.<br />
<br />
== Early Testing ==<br />
<br />
In the end the mystery pin turned out to be the problem. It is the voltage used to drive the FETs. Apparently 5v wasn't quite enough and it needs to be slightly higher than the logic level. This voltage can be tweaked to adjust the brightness without multiplexing.<br />
<br />
[[File:TDB-EarlyTesting.png|400px]]<br />
<br />
=== Working-ish ===<br />
<br />
A quick perf-board circuit as an arduino shield let me drive the top two rows. I think I wired something incorrectly though as I wasn't able to get the bottom rows to work at the same time. <br />
<br />
[[File:TDB_WorkingABit.jpg|400px]]<br />
[[File:TDB_Proto_Arduino_Sheild.jpg|400px]]<br />
<br />
The "mystery pin" (which is the input voltage to the UDN2982 source driver) was being generated with a potential divider. I knew this might cause an issue since the mosfets will draw a bit of current between the gate and drain, but it was much worse than I thought.<br />
<br />
=== A PCB... ===<br />
<br />
Waiting for this to arrive but sent off to JLCPCB. The potential divider has been replaced with an LM317 voltage regulator and small trim pot. This should work a bit better. hopefully...<br />
<br />
[[File:TDB_PCB_rendering.jpg|400px]]<br />
<br />
Sources are on GitHub https://github.com/AaronJackson/TrainDepartureBoard-Discord<br />
<br />
== Hooking up to Discord... ==<br />
<br />
The next steps... It's a work in progress</div>Asjhttps://wiki.nottinghack.org.uk/wiki/Discord_BotDiscord Bot2024-01-04T20:58:25Z<p>Asj: Created page with "The discord bot monitors MQTT traffic and builds a cache of information, so that it is able to respond to commands via Discord without accessing any databases. There are a num..."</p>
<hr />
<div>The discord bot monitors MQTT traffic and builds a cache of information, so that it is able to respond to commands via Discord without accessing any databases. There are a number of supported features:<br />
<br />
* Built-in commands, such as:<br />
** <code>!battery</code> - Shows a list of WirelessThings battery levels.<br />
** <code>!humidity</code> - Shows a list of room humidities (also from WirelessThings sensors).<br />
** <code>!status</code> - Shows (25 most recent) service statuses from the <code>nh/status</code> topic. These timeout and go 'bad' after 1 minute.<br />
** <code>!temp</code> - Show temperature readings from around the hackspace.<br />
** <code>!tools</code> - Show current status of bookable tools, e.g. who is using it now, who will be using it next, and when.<br />
** <code>!wiki [search term]</code> - Queries this wiki's API to perform a search<br />
* Alerts on certain MQTT messages<br />
** Forwards doorbell alerts as silent messages to #bot-spam<br />
* Relays messages to and from MQTT<br />
** messages to MQTT Topic <code>nh/discord/tx</code> will be forwarded to #bot-spam<br />
** messages to MQTT Topic <code>nh/discord/tx/{channel}</code> will be forwarded to #{channel}<br />
** messages to MQTT TOPIC <code>nh/discord/tx/pm/{nick}</code> will be sent as a DM to {nick}<br />
** messages posted in Discod channels which do not end in "-private" are relayed to MQTT Topic <code>nh/discord/tx/{channel}/{nick}</code><br />
<br />
The code is currently available on Aaron's GitHub, with the intent of moving this to Nottinghack GitHub org eventually. <br />
<br />
https://github.com/AaronJackson/nh-discord</div>Asjhttps://wiki.nottinghack.org.uk/wiki/2024-01-03_Transcript2024-01-03 Transcript2024-01-03T22:58:33Z<p>Asj: </p>
<hr />
<div>'''Chairing''': Steve Barnett <br />
<br />
'''Minute''': Aaron Jackson<br />
<br />
'''Roll Call''': Steve B, Aaron J, Edgar J, Colette, Douglas C, Bob W, Ali M, Andrew W, Chris R, Malcolm, Barbara, Gareth, James S<br />
<br />
'''Announcements and Events'''<br />
<br />
Hack the Space Day, this Sunday - 7th January<br />
<br />
Ian's Woodworking Sessions starting on 14th at 11am.<br />
<br />
EMF Camp Planning Session on Monday 15th<br />
<br />
Regular Uke sessions<br />
War Gaming sessions<br />
Combat Robot sessions<br />
Movie night planned?<br />
<br />
Tim's 3D Scanning session upstairs after this meeting.<br />
<br />
'''Actions and Minutes from last meeting'''<br />
<br />
No actions.<br />
<br />
Oh: Left Lion posted our article, mostly a transcription of a bad interview.<br />
<br />
'''Metalworking Downstairs'''<br />
<br />
Douglas: Not much progress. Continuing to contact electricians for quotes. Still working on it.<br />
<br />
Work parties will begin again when appropriate. <br />
<br />
If anyone has any expertise with stud walling, maybe we (Douglas) can talk about it at Hack the Space day.<br />
<br />
'''The Spray Booth'''<br />
<br />
Chris Reddish - <br />
<br />
Quick discussion regarding member's questions relating to the spray booth. How can we make it a bit more multi-use and safe, relating to VOCs etc?<br />
<br />
Appears to be appealing for resin moulding, e.g. leaving for curing. Turning off extraction while curing may be problematic, as it's a small area.<br />
<br />
Brief discussion with Aaron: More shelving, plus a VOC sensor to trigger the extraction.<br />
<br />
Any thoughts? <br />
<br />
Douglas? Is this because there are no suitable places for resin? Chris: Maybe not during the curing.<br />
<br />
Andrew W: Screen printing room? Drying space just outside the dusty area?<br />
<br />
Steve: Partition the spray booth to split it.<br />
<br />
Andrew W: Shelving would be a big improvement. Sounds like a good idea.<br />
<br />
Steve: Need to look into whether VOC sensors are good enough.<br />
<br />
Chris: Two part question - drying area separate to spray booth, vs partitioning the spray booth. Something more permanent might be a spray booth. <br />
<br />
Steve: Could a drying area go where current metalworking area is?<br />
<br />
Douglas: Shelving would be good if it was foldable in case it got in the way.<br />
<br />
Andrew W: A screen over it for overspray would be good.<br />
<br />
Chris: We will have more discussion about it on Sunday at Hack the Space. <br />
<br />
Bob W: Is anybody making resin table tops?<br />
<br />
'''Team Updates'''<br />
<br />
Andrew W - Not been in before Christmas - couple of sanders seem to have broken in the wood working area. May be worth buying some new ones maybe? <br />
<br />
Aaron: Maybe send us some links after looking around on Hack the Space day. We can try to sort out a pledge drive.<br />
<br />
Chris R: Laser stuff - everything is fine, John is still doing regular weekly maintenance which is keeping things running well. Moving the new Laser - we have a plan and have done some measuring. Confident it needs to fit through all areas. Agreed a location - upstairs, until we install it. Not decided on a date yet. <br />
<br />
Douglas: Could it happen at hack the space?<br />
<br />
Chris R: Half the table top gaming team are on call and ready to go 😎 Would prefer a trustee to be present while moving it. <br />
<br />
Steve: It would alleviate concerns about the lift breaking again. Belts are all cable tied down and ready to be moved.<br />
<br />
Chris R: In that case, I will "crack the whip". If we wont have enough people, we'll see if anyone else can move it.<br />
<br />
Steve: Considering "hot-rodding" ender to make it print faster (????)<br />
<br />
Chris R: There will probably be a pledge drive soon for a new printer, so not much reason in my opinion to not tinker. <br />
<br />
'''Financial Update'''<br />
<br />
Had one at the AGM. Matt is away visiting family.<br />
<br />
Bank balance is £26,656. Up about 2k from September.<br />
<br />
'''Any other business'''<br />
<br />
Howard joined. 🙂<br />
<br />
Andrew W: Is that the end?<br />
<br />
Steve: yep.<br />
<br />
Andrew W: Looking at panel storage outside the spray booth. Why don't we abolish panel storage all together?<br />
<br />
Steve: It's certainly heavily abused at the moment and needs clearing out.<br />
<br />
Andrew W: Reasoning is - we don't have panel storage, but you can store panel materials. Replace panel storage with project storage. Change it to "large flat project storage" - i.e. still needs to be labelled and has been described as an ongoing project. <br />
<br />
Steve: Comes down to who "polices" that and helps clear it out.<br />
<br />
Bob: If it's been donated to the space, where is it going?<br />
<br />
Chris: There are two trolleys up there and they are currently labelled scrap/donations and storage. Further clairy that it's project storage, not material storage.<br />
<br />
Any other comments?<br />
<br />
Nope - meeting closed 🎉<br />
<br />
[[Category:Member's Meetings|^Year 13^]]</div>Asjhttps://wiki.nottinghack.org.uk/wiki/2024-01-03_Agenda2024-01-03 Agenda2024-01-02T18:02:33Z<p>Asj: </p>
<hr />
<div>===Agenda===<br />
<br />
*'''In the Chair:''' Steve B<br />
*'''Taking Minutes: ''' Aaron J<br />
<br />
*'''Location:''' Blue Room and Zoom<br />
<br />
{| class="wikitable"<br />
!#!!Item!!Notes!!Owner<br />
|-<br />
|1||Roll call|| || All<br />
|-<br />
|2||Announcements and Events||<br />
* Hack the Space Day - Sunday 7th Jan <br />
* Woodworking with Ian (first of several sessions) - Sunday Jan 14th @ 11am<br />
* EMF Camp Planning Session - Monday Jan 15th @ 8pm<br />
<br />
**Idea for an event?** Please do it!<br />
|| All<br />
|-<br />
|3||Actions & Minutes of Last Meeting||<br />
[[2023-12-06 Transcript|6th December - Members Meeting]]<br />
|| [[Trustees]]<br />
|-<br />
|4||Metalworking Downstairs|| Update on new metalworking area<br />
|| [[Trustees]]<br />
|-<br />
|5||The Spray Booth||<br />
Some discussion about the spray booth.<br />
|| [[User:Red|Chris R]]<br />
|-<br />
|6||Team updates|| Updates from teams around the Hackspace<br />
* Call for Membership Team volunteers.<br />
* Updates from Laser Team.<br />
|| [[Teams]]<br />
|-<br />
|7||Financial Update||<br />
* [[Financials 2023 October]]<br />
* [[Financials 2023 November]]<br />
|| Treasurer<br />
|-<br />
|8||Any Other Business||<br />
<br />
|| All<br />
|}<br />
<br />
{{note|Any Other Business. That is for items that are prompted by discussion during the meeting.}}<br />
<br />
[[Category:Member's Meetings|^Year 13^]]</div>Asj