I have a Shizoka B3V milling machine that I have updated the controls and using Mach3.

I retained the original Fanuc servo motors and encoders. The drives are from CNCdrives, model # DG4S-08020 .

I have a warp9 ESS motion control board. I am using a CNC4PC C62 breakout board.

I used the CNCDRIVES tuning stick to tune the servos.

Within Mach3 I turned XY&Z axes to the same speed and velocity, etc. The Y&Z axes operate smooth and quiet. For some reason the X axis runs pretty smooth but is not quiet. There is a humming/resonating/vibration with the servo motor. If I hit the reset button the humming goes away. But the next time I use the X axis it returns.

Anybody have any suggestions on tuning my X axis?

Thanks,
Chuck