Difference between revisions of "Denford Lathe"

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(Added Fusion 360 Tool Library file.)
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[[User:Dclarke|Dclarke]] ([[User talk:Dclarke|talk]]) 08:56, 28 January 2014 (EST)
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{{Tool
 +
|image=File:WDenfordNovaturn.JPG
 +
|manufacturer=Denford
 +
|model=Novaturn
 +
|location=Laser Area
 +
|obtained=2014
 +
|induction=No
 +
}}
 +
==Intro==
 +
A benchtop Denford Novaturn CNC lathe, typically controlled by [[Colosson]] computer.
  
A benchtop Denford Novaturn CNC lathe
+
The Novaturn lathe has been in the space for some time and has had very little use to date. It is NOT a scary, hard to use machine and is available for use by any member without induction.
  
[[File:WDenfordNovaturn.JPG|The Denford CNC Lathe]]
+
Obviously take care when using, if you are unsure of anything '''ASK SOMEONE'''; a good place to ask is the google group or #CNC [[Slack]] channel.
  
The novaturn lathe has been in the space for some time and has had very little use to date
+
If you have never used a Lathe or CNC machine at all before the learning curve can be a little steep but should be manageable.
it is NOT a scary hard to use machine and is avaialble for use by any member without induction.
 
  
Obviously take care when using, if you are unsure of anything ASK SOMEONE, a a good place to ask is the
+
==How-To==
google group. If you have never used a Lathe or CNC machine at all before the learning curve can be a little
 
steep but should be manageable.
 
  
 
There are a number of good 'howto' videos on youtube
 
There are a number of good 'howto' videos on youtube
 +
Including three by [[User:chriscain|Chris Cain]] :-) showing how to design a part and cut it specifically on out lathe.
 +
See lower in the section for the links to the videos.
 +
 +
There is also some generic videos on using a denford lathe.
 
See [https://www.youtube.com/watch?v=aBuMs5Uk_7Y Part1]
 
See [https://www.youtube.com/watch?v=aBuMs5Uk_7Y Part1]
 
and [https://www.youtube.com/watch?v=XUYUBSZGmA4&t=174s Part 2]
 
and [https://www.youtube.com/watch?v=XUYUBSZGmA4&t=174s Part 2]
Line 21: Line 31:
 
to check all is well before you actually cut it out for real. This gives an easy confidence boost.
 
to check all is well before you actually cut it out for real. This gives an easy confidence boost.
  
 +
The current default tool setup and offsets are good for the 4 'outside' tools
 +
Rough cut, Finishing, Parting and Threading. But the previous person may have changed or moved things so ALWAYS
 +
check tool offsets and work offsets before running a job.
 +
 +
===Instruction Manual===
 
Other reference:
 
Other reference:
 
Novaturn Manual is available [https://wiki.nottinghack.org.uk/images/9/9f/Novaturn_vr_manual.pdf HERE]
 
Novaturn Manual is available [https://wiki.nottinghack.org.uk/images/9/9f/Novaturn_vr_manual.pdf HERE]
  
At the moment we have not set up any tool sets or fixed tool offsets so multi tool jobs and using the tool changer will probably need some deep learning or previous experience!. I am hope to do some work on this in the near future.
 
  
If you have any questions please ask, I am more than happy to give a demo/introduction if people do not feel confident enough to go it alone.  
+
==Chris Cain's Spinning Top==
 +
24/12/2016 Tested the lathe today, it is 100% functional.
 +
 
 +
There is a post processor available below for Fusion 360
 +
which is a great 3d design tool that is free for private/educational use
 +
There are lots of how to work Fusion 360 vids on Youtube, the NYC CNC ones are all good.
  
 +
My Post Processor for The denford Lathe in [[Fusion 360]].
 +
All seems to work fine for external turning/grooving should be 100% functional but threading and internal cutting only tested on the sim.
 +
If you downloaded the previous version you need to switch, the last one had a problem in that it did not execute tool changes correctly on the lathe even though they worked in the sim.
  
===============Below here be dragons========================================================
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Youtube Videos on how to use the lathe are available:
This stuff not needed to use the lathe, mostly collecting things as I find them in case we ever want to upgrade the Lathe
 
to a better controller.
 
  
Auto Tool Changer.
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# Designing the top in fusion 360 and testing on the sim https://www.youtube.com/watch?v=k1-Z0pW2ES0<br />
The ATC unit runs from a DC motor driving the tool turret via a worm Gear.
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# Setting up the lathe, tool offsets etc https://www.youtube.com/watch?v=5A6WGTqPZko&t=66s<br />
There are 3 sensors (optical) that give a grey code encoded tool number as the turret rotates.
+
# Making the top  https://youtu.be/wTwbws0wuVc<br />
The tool is selected by putting 24 volts on the DC motor, the turret starts turning.  
 
Monitor the 3 sensors, when they have the correct tool number the DC voltage is reduced to 12 volts and the
 
polarity is reversed. This causes the toolpost to reverse and lock. The 12 volts reverse polarity is
 
maintained to keep the tool locked in place.
 
Diagrams of the tool changer board below.
 
  
[[File:NVT-D8A.pdf|NVT-D8A.pdf]]
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<gallery>
[[File:DOC100308.pdf|DOC100308.pdf]]
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TOP1.jpg|The minitop
[[File:Toolpost.pdf|Toolpost.pdf]]
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TOP2.jpg|The minitop
[[File:DOC100308-001.pdf|DOC100308-001.pdf]]
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</gallery>
  
 +
Post any successes/problems on the google groups,
 +
let me know if this is useful and I may be persuaded to do vids on the Bridgeport and Myford lathes
 +
although at present both of these do need an actual induction due to there ability to eat fingers
 +
of unwary hackers.
  
 
[[User:chriscain|Chris Cain]]
 
[[User:chriscain|Chris Cain]]
 +
 +
===Fusion360 Post-Processor===
 +
[[File:Denford NovaLathe.zip|Denford NovaLathe.zip]]
 +
 +
 +
== Tooling ==
 +
There is an 8 post auto tool changer, odd mounts are for turning tools, even mounts are for drill/boring tools<br>
 +
Most of the Tooling is base around DCMM inserts. There is/was a pack of Sandvik <code>DCMM 11 T3 04-53</code> <br>
 +
Shank size is 12x12 for the turning tools
 +
 +
ISCAR SDJOR 8-3 Right Hand Turning  [https://www.iscar.com/eCatalog/Item.aspx?cat=3600885&fnum=341&mapp=IS&GFSTYP=M&srch=1 SDJCR 1212F-11]<br>
 +
ISCAR SDNCN 1212F-11 55° Grooving  [https://www.iscar.com/eCatalog/Item.aspx?cat=3600901&fnum=346&mapp=IS&GFSTYP=M&srch=1 SDNCN 1212F-11]<br>
 +
ISCAR NL 12-3 Right Hand Treading<br>
 +
MGEHR1212-2 MGMN200 Parting/Grooving NC3020 inserts, 12mm max depth<br>
 +
 +
===Fusion360 Tool Library===
 +
[[File:Novaturn.zip|Novaturn.zip]]
 +
 +
[https://knowledge.autodesk.com/support/fusion-360/learn-explore/caas/sfdcarticles/sfdcarticles/How-to-import-a-tool-library-in-Fusion-360.html/ Instructions for installing The tool library in Fusion 360 can be found here]
 +
 +
===Collet holders===
 +
[[File:Novaturn collets.jpeg|thumb|left]]
 +
 +
 +
[[Category:Computer aided manufacture]]
 +
[[Category:Tools_and_Equipment]]

Revision as of 14:02, 6 May 2022

Denford Lathe
WDenfordNovaturn.JPG
Manufacturer Denford
Model Novaturn
Obtained 2014
Location Laser Area
Team Tools
Induction Required No
Booking {{{booking}}}
Status Defunct
Tools:   all pageslistPower ToolsBroken tools     {{}}

Intro

A benchtop Denford Novaturn CNC lathe, typically controlled by Colosson computer.

The Novaturn lathe has been in the space for some time and has had very little use to date. It is NOT a scary, hard to use machine and is available for use by any member without induction.

Obviously take care when using, if you are unsure of anything ASK SOMEONE; a good place to ask is the google group or #CNC Slack channel.

If you have never used a Lathe or CNC machine at all before the learning curve can be a little steep but should be manageable.

How-To

There are a number of good 'howto' videos on youtube Including three by Chris Cain :-) showing how to design a part and cut it specifically on out lathe. See lower in the section for the links to the videos.

There is also some generic videos on using a denford lathe. See Part1 and Part 2

The lathe used is the same as ours except that we have a 8 position automatic tool changer.

The novaturn software has a simulation mode' that lets you program a part an run it on the computer only to check all is well before you actually cut it out for real. This gives an easy confidence boost.

The current default tool setup and offsets are good for the 4 'outside' tools Rough cut, Finishing, Parting and Threading. But the previous person may have changed or moved things so ALWAYS check tool offsets and work offsets before running a job.

Instruction Manual

Other reference: Novaturn Manual is available HERE


Chris Cain's Spinning Top

24/12/2016 Tested the lathe today, it is 100% functional.

There is a post processor available below for Fusion 360 which is a great 3d design tool that is free for private/educational use There are lots of how to work Fusion 360 vids on Youtube, the NYC CNC ones are all good.

My Post Processor for The denford Lathe in Fusion 360. All seems to work fine for external turning/grooving should be 100% functional but threading and internal cutting only tested on the sim. If you downloaded the previous version you need to switch, the last one had a problem in that it did not execute tool changes correctly on the lathe even though they worked in the sim.

Youtube Videos on how to use the lathe are available:

  1. Designing the top in fusion 360 and testing on the sim https://www.youtube.com/watch?v=k1-Z0pW2ES0
  2. Setting up the lathe, tool offsets etc https://www.youtube.com/watch?v=5A6WGTqPZko&t=66s
  3. Making the top https://youtu.be/wTwbws0wuVc

Post any successes/problems on the google groups, let me know if this is useful and I may be persuaded to do vids on the Bridgeport and Myford lathes although at present both of these do need an actual induction due to there ability to eat fingers of unwary hackers.

Chris Cain

Fusion360 Post-Processor

File:Denford NovaLathe.zip


Tooling

There is an 8 post auto tool changer, odd mounts are for turning tools, even mounts are for drill/boring tools
Most of the Tooling is base around DCMM inserts. There is/was a pack of Sandvik DCMM 11 T3 04-53
Shank size is 12x12 for the turning tools

ISCAR SDJOR 8-3 Right Hand Turning SDJCR 1212F-11
ISCAR SDNCN 1212F-11 55° Grooving SDNCN 1212F-11
ISCAR NL 12-3 Right Hand Treading
MGEHR1212-2 MGMN200 Parting/Grooving NC3020 inserts, 12mm max depth

Fusion360 Tool Library

File:Novaturn.zip

Instructions for installing The tool library in Fusion 360 can be found here

Collet holders

Novaturn collets.jpeg