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Topic: Some success with an Arduino Due driving a metal lathe (Read 364 times) previous topic - next topic



Working quite well, I have made a fair amount of things with a minimal amount of effort....CNC is really the way to go.

I'm using a 40A SSR to turn the lathe off (power supply for stepper drivers at the same time) - it has proven 100% reliable so far, although it does need a hefty heatsink.

A Uno proved too slow for two stepper motors - the Due is more than capable.


Jan 20, 2014, 09:13 pm Last Edit: Jan 20, 2014, 09:36 pm by Robin2 Reason: 1
I'm very interested. I have bought a few steppers to convert a small lathe to CNC but I have been distracted with other Arduino things.

I'm interested in a few things ...

In what way was the Uno too slow? Did it not work at all, or just not fast enough?

From my own experiments the Uno seems fast enough and the 3D printers usually use a Mega which runs at the same speed as the Uno.

I presume your design is turned (forgive the pun) into G Code at some stage. How do you do that?

How do you move from G Code to stepper movements?

Is there a PC connected to your Due, and what role does the PC play?


I've just seen your post in the "Curve to Code tool" thread but I'm afraid I couldn't follow it. I use Ruby (actually JRuby) for preference but it wasn't clear from the video if you are controlling everything with a Ruby program or just generating a file of coordinates with it.

And another question, how do you tell the lathe tool where the "home" coordinates are?


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