Reply To: Shuddering on X and Y, only on stepper power.

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Looks like you did all the right troubles shooting. Take off the belts and see if each has roughly the same power if you try and stop them from moving by hand. 1 stepper might have a loose pair making it move but only have half the power.

More likely the driver for that axis is not set correctly. Since it is all my stuff make sure the X and Y axis are close to .7V and the Z is .47Vish.