Print in place NEMA17 with rotating motor shaft

thingiverse

I have some spare parts collecting dust around here, that I'm thinking of building another printer with. To get a more accurate idea of the real life proportions it would have, I designed and printed a mock-up of a NEMA17 stepper motor. And to make things a bit more exciting, I made it a 'print in place part' with a rotating motor shaft. The gap between the shaft and the motor housing is 0.3mm. It has two 2mm high and 0.4mm wide integrated supports in the middle that you have to break after printing by wiggling and twisting the motor shaft. Good bed adhesion is crucial, since the shaft's footprint - although I made it a bit wider - is quite small, as is good cooling. Fusion 360 source file included.