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General Mach Discussion / gaining and loosing steps

« on: October 29, 2009, 09:04:56 AM »

 just finished a long time project hurco mill with rutex drives. took quite awhile to work out the bugs but the mill finally tested o.k. first project was to drill holes to mount fixture on subplate. none of the holes are in the exact location from the program. x and y locations are off both plus or minus at each hole from .001 to .025. during setup of the mill it repeated perfectly every time, now it looses or gains steps on every move. any thoughts on this?

thanks