Quote Originally Posted by russell View Post
Could it be the hysteresis of the switch (the difference between the on and the off threshold positions)? Or even backlash on the x axis?

Russell.
Do not think its backlash as the motor does not try to back it off. I was looking on the mach forum and realised that I have not connected the shielding to earth yet. Naughty me. So I will try that tomorrow and see if it helps.

Bruce