NEMA Motor Rotation Indicator
thingiverse
This is inspired by, but not derived from, the indicators here: https://www.thingiverse.com/thing:2638857 Uses a 1/4" x 1/8" round magnet ($0.90 each as of posting) from McMaster-Carr: https://www.mcmaster.com/5862K103/ The magnet press fits into the sleeve, and on many steppers should fit fairly loose in the end hole (made on and works with Prusa motors, tested on a couple others I have around)
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