Steppers are stopping, and missing steps. tried changing Vref on stepper controller, changing speed and velocity in motor tune with no luck. tried changing the ACPI to standard, but I dont see a standard driver when I look for it. I can only get 40IPM out of the steppers and need at least twice that.
Running probotix pbx-rf breakout, sidestepper controllers at 1.5A, 280oz in steppers, 1/4 20 screws.