I just set up EMC to control my mill. Everything appeared to be going well until I attempted to cut a profile with some arcs involved. Each pass of the contour results in a drift along my Y axis.
I believe I have eliminated backlash as the cause of the drift. I can drive the axis in a linear fashion (back and forth over and over) and the error is within .001". However, if instead of using a G1 command I use a G2,G3 command the drift appears. It's quite excessive! A circular command repeated 25 times can result in a drift of upto .125".
I think it's unrealistic that this is a bug in the EMC software. However, I can believe it is related to my INI file settings. Does anyone have a clue as to the cause of my frustrations?????
Thanks!