Clamp-On CNC for Taig Lathe

by NickAmes, published

Clamp-On CNC for Taig Lathe by NickAmes Feb 21, 2016
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This thing allows you to easily add CNC control to a Taig Lathe. It attaches a NEMA 17 stepper motor to a handwheel (on the cross slide, compound slide, or vertical milling attachment).
The following parts are required for each axis:

  • 1x NEMA 17 stepper motor
  • 1x Coupler.stl
  • 1x Mount.stl
  • 1x Stepper Plate.stl
  • 2x M3 Nuts (for Mount clamp, and Coupler set-screw)
  • 2x M3 Washers (for Mount clamp)
  • 1x M3x45 screw (for Mount clamp)
  • 3x M3x16 screws (to mount Stepper Plate to Mount, and Coupler set-screw)
  • 4x M3x10 screws (to mount stepper to Stepper Plate)

Project website: http://www.fetchmodus.org/projects/clamp-on-cnc/

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how did you find the spindle speed for the threads?

nevermind i see you already answered that

Agree, great job, this is awesome!
Any plans to post your basic thread computer program on github?
Would it be portable to, let say, a raspberry pi?

I don't want to post it, as it's really rough. It's also microcontroller-specific, and wouldn't work on a general purpose computer. Something like LinuxCNC or EMC would be much better.

np, thanks for the reply and for sharing your models.

great job!! thanks
I made some minor modification for use with my sherline lathe.

I see on your website you've successfully cut threads with your setup. How did you solve the spindle encoder/orientation problem?

I put an piece of electrical tape on the spindle pulley, so that it could be detected by an IR LED-phototransistor pair. Then the threads were cut with a very basic microcontroller program. LinuxCNC, Mach3, or another CNC control package would have also worked.