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General Mach Discussion / Re: Odd Stepper behavior
« on: April 14, 2014, 08:00:56 AM »
Hood - the RPM DRO is always reading less than the comanded spindle speed. So when I enter M3 S1000, 1000 shows up in the spindle rpm DRO and only 975 shows up in RPM DRO. Which now that I think about it, if the motor isn't hooked up and spinning, where is 975rpm coming from? Shouldn't that read 0?
-mike
-mike