I am having an issue when my steppers are connected to the MKS board the print grinds and makes a ton of noise and also causes artifacts on the print. I have even had the y shift before.
as soon as I disconnect the stepper motors the y does not grind and everything sounds great and moves smoothly.
I have adjusted the Vref to 1.26 (which is my max) and have made sure the belts are tight but not to tight.
has anyone seen this before? any suggestions?