I recently had a servo alarm in my x axis that was traced to a broken wire on the encoder cable (Fanuc 3T controller on a Wasino LG-81) that fried my drive. Today I replaced the cards and got the machine going again. While it was down, I took apart both servo motors and cleaned out the dust from the brushes. This is a gang type lathe with just X and Z axis.
Everything seems to be running ok except that all my dimensions in the x axis are off by about .040" It's as if the whole bed has moved .040" in the + direction. Or as if the machines new home position is off. I can adjust for it but wanted to ask what may have caused this? Any ideas?
Thank you, Jeff