Stepper dampers rvfm my17rmdamp put a stop to resonance with this size 16 17 stepper motor mounting damper stepper motors are affected by resonance which can become so severe that the stepper will stall and lose position stalling can also damage the stepper resonance is caused by parts vibrating in concert with each other it can be lessened by fitting a stepper damper br br in addition to the improved settling time system resonances are suppressed as well as vibrations and motor noise