Simple stepper motor fan holder
thingiverse
A Convenient Fan Holder for NEMA 17 Motors. This holder prints quickly and easily without any additional requirements - no tape, no screws necessary. It secures in place by simply sliding it into position. I've mounted one on a Redrex Nema 17 motor with excellent results. PLA is suitable since the motor maintains low temperatures even when the fan is running. If your motor becomes excessively hot, consider reducing the driver's voltage or using ABS or PETG instead.
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