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General Mach Discussion / stepper motors loose steps when cold

« on: May 05, 2007, 09:58:41 PM »

my 1200 oz in stepper motors don't run worth a damn when I first turn them on.  They loose steps all over the place.  I'm running mach 3 mill, gecko 201's. After I run them for a while, same speed they run just fine.  Anyone have any ideas.  Any thoughts would be most appreciated.  Thanks Cleveis