Help !!! with NOVUSUN Ethernet Mach3 controller

[Igorexa]

I need help with NVUM Ethernet controller.
I try to calibrate machine with NVUM controller and for some reason motors are not returning to the same position on all 3 axis!
If I move single axis 1" back and forth ten times it is loses aprox. 0.001"..... all wiring to servos are properly conected , no loop grounds.
If I switch to older Parallel port CNC controller then machine working fine dead on coming back to the same spot. Guys any ideas what is causing it?

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[leonandre]

hello digging up the topic, but I have the same problem, did you solve? I need help