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Thanks mactec54 and Al_The_Man

Also, my spindle cable is neither shielded nor 4 core. It is standard 3 core extension lead. Likely the same on your machine zedodia

Mactec54

Can you please explain why a separate ground is a bad idea? Is it because any ground leakage will not pass through the RCD, or another reason? The reason I wanted to keep it separate was...

Hey mate,

I'm having the same problem on my x6-1500gt usb.
From the factory, the control box case and the power supply are grounded. The stepper drivers may be grounded to the case through the...

Dwalsh62
You seem to be confusing power and torque.

A 200:1(in : out) reduction gearbox multiplies torque by a factor of 200, rotational speed by 1/200, and, in a frictionless world, the power...