There is likely a post about this, but I'm too tired to search for it. My router is losing its position on the x axis only. It seems totally arbitrary, but the x axis will shift to negative, by as much as .25 inches. So far I've destroyed a couple of really nice pieces of wood.
Run the g code once, and things go fine. Next time - whamo, I get gouges where I really don't want them. Shucks, I want to cry.
I generated new g codes, checked tuning on my G320's (gain and damping) nothing to tweak that I can see. I clean the linear bearings, lubricate racks, talk nice and offer up animal sacrifices....
Sometimes, but not always, I have noticed a hesitation when the x axis is cutting to the positive direction. Rapid movement, it seems, is not affected and works smooth as silk.
This problem appears to have happened since upgrading to version 2 of Mach 3.
I don't think it's noise, because I'm running with shielded cables and bleeds. Upgraded grounds, yadah yadah, (I had another post about this boar's nest)
Any guidance out there, this situation has effectively shut me down.