Newbie here, well on the learning curve, yet a ways to go. Here's my problem:

When I 'ref all home' everything works well (Mach 3). The Y axis is driven by two leadshine servo's (Y and Slave A). I can jog around and even run a trial g-code program without issue. BUT, if I jog well off of home (say 40" in Y direction), stop and then select 'ref all home' the A slave axis lags the Y location, alot! Any Idea how this can be happening? By the way I have checked my hardware and there does not appear to be anything slipping mechanically (shaft and belt pulleys matched marked).


I don't think it is related, but shortly before this happened I ran Axis Calibration in the settings page for the Y leg. It only changed the multiplier by a small amount, since it was only a few thousandths off over 15 inches. I assume even if the A leg had the older value it wouldn't be that far off. Besides when jogging and running a program they seem to be in synch.