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Subject: 
Re: Controlling a Unimat lathe
Newsgroups: 
lugnet.robotics
Date: 
Thu, 17 Feb 2000 00:35:54 GMT
Viewed: 
683 times
  
In lugnet.robotics, Peter Danielson writes:
I have an old Unimat (model 14412) lathe that I would like to try to control
with one of our lab's Mindstorms kits. Does anyone have any suggestions for
ways to connect the motors to the two lead screw adjusting wheels?


Ya, go buy a stepper motor...

The problems would be backlash and power.  Even the best (IE, using a 1:40
reduction, with the angle mesured on the imput shaft) would likely put out too
little power.  Backlash is the harder one...you could calculate it, but
still...CNC with a non designed machine is not a fun situation.  'real' CNC
machines have ball threads which have 0 backlash.  So, if you try, you likely
can do it...give it a go and let me know! I have 2 small lathes (a Perris and a
Busy Bee 6") that would look quite good with CNC on them for $300 or so...

James




(Photo at http://eame.ethics.ubc.ca/users/pad/Robots/Unimat.jpg)

Thanks in advance,

Peter Danielson
Robot Ethics Lab
Centre for Applied Ethics
University of British Columbia
Vancouver, Canada



Message has 1 Reply:
  Laptop IR
 
Hello, Does anyone know how to control the brick with the built in IR port of a Dell laptop instead of the tower? Thanks for your consideration. jim (24 years ago, 17-Feb-00, to lugnet.robotics)

Message is in Reply To:
  Controlling a Unimat lathe
 
I have an old Unimat (model 14412) lathe that I would like to try to control with one of our lab's Mindstorms kits. Does anyone have any suggestions for ways to connect the motors to the two lead screw adjusting wheels? (Photo at (URL) in advance, (...) (24 years ago, 17-Feb-00, to lugnet.robotics)

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