Extruder stepper motor stuttering. Hi. Hope all is well.with everyone. Recently, my extruder stepper motor is stuttering when trying to extrude even without any load. I tested the motor by switching it to the x axis connect and it seems like the motor works just fine. Additionally, I've connected my old stepper motor to the extruder wire and it too is just stuttering without moving. Is this a sign of a bad stepper driver? If so, is there anything I can do to repair it?