Wiring an 8 wire Nema to 4 core CY cable to an AM882

[AndyUK]

Tuned my all my motors last night and manually set the currents using Protuner. Much happier machine now, the X axis has gone from stalling at 8m/min to being able to do 15m/min without flinching. The Y can do 20m/min, but I've set both X and Y back down to 10m/min for general use.

Still getting some quiet hissing and squealing, although it seems to be emanating from the motor drivers not the motors themselves. Is this something I need to keep an eye on?

[JAZZCNC]

Still getting some quiet hissing and squealing, although it seems to be emanating from the motor drivers not the motors themselves. Is this something I need to keep an eye on?

Nothing to worry about it's quite normal to get quiet hiss, often it only happens when stood still and it's the recirc circuit lowering the current.

Surprising isn't it how much difference the tuning makes..