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General Mach Discussion / Re: C11G PWM control voltages go down when increasing speed in Mach3
« on: August 25, 2017, 01:50:54 AM »
Try check (tick) Step Low Active for Spindle in Ports and Pins.
Tweakie.
Tweakie.
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One thought occurs to me: last night I left the workshop in a hurry. I just flipped all the switches off on the power board, didn't shut Mach 3 down or the computer.