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5axis BOB, PWM speed control, Mach 3 and a partridge...

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I currently have a properly functioning Ox with a cheap chinese speed control managing my spindle. The unit comes with a pot which is used for manual spindle speed control. As I learn more, I want to have Mach3 control my spindle speed instead of doing it manually.

The speed control has a PWM input and my breakout board (a common 5-axis board) has PWM outputs. However, i can't seem to get it all to work properly. I've attached pictures of both the speed control and the BOB.

My first...

5axis BOB, PWM speed control, Mach 3 and a partridge...

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