Hey all, i'm calibrating my steps per on my mill and having a very hard time with my y axis. It's on ballscrews and linear rails and very smooth so binding isn't the issue. When i try to and step to my gage block to touch with the indicator sometimes it will move a true .010 and other times the motor wines just ever so slightly and will on move a few thou. As you know this will make it near impossible to calibrate.I'm stumped. I did my x and z perfectly. I got them with in .0001 on each axis. But the Y is being a b***h.

Any suggestions? I'm using mach3 by the way.

PS I tried turning down the Acceleration but still the same result.


Thanks.