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General Mach Discussion / Mach 3 constant pulse width or constant duty cycle?
« on: May 23, 2015, 06:42:22 PM »
Your USB motion control board is generating its own pulses internally, it's not doing anything with the Mach3 ones. Comparing them will not tell you much about why the USB is rough. Are you running step and direction or step +/-? If the former then maybe the step edge is the wrong polarity for your drivers.
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