I think I've traced it to the encoder. I separated the power wires as far from the encoder wires as possible and still had the same problem. As mentioned, I have the fully shielded encoder harness from US Digital so was not expecting a noise problem anyway. So other than noise, what else could cause an encoder to be at fault? Or is it maybe the Gecko drive has a fault? I know the X axis works fines so I used the step and direction lines from it to drive the Z axis but with no improvement so I know its not the breakout board or Mach 3. Is there a way to "test" the encoder?
Thanks for all the replys so far. |