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General Mach Discussion / Re: Question about Mach3 Stepper Motor Tuning. Still a few Rough Spots

« on: March 08, 2013, 11:50:41 AM »

I am currently trying to tune the step motors on my machine.  The problem I'm having is the motors on all 3 axis have negative rotation, however, positive rotation is intermittent on all 3 axis.  A pulse is going to each of the motors during the positive rotation movement, but does not continue to run the motor.  If this only happened on a single motor, I would think the problem was mechanical.

Your help would be most appreciated.