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NEMA-23 Motor Finger Crank
This finger crank fits on a flatted 1/4" shaft to allow rapid manual positioning of anything driven by the motor.
3D printer parts and enhancements
Creative Commons Attribution Share Alike
Commercial use is allowed, you must attribute the creator, you may remix this work and the remixed work should be made available under this license.
Description
I recently changed from belt drive to screw drive in the Y-axis of my printer. That required a larger motor, so I bought a dual shaft motor that has the shaft that sticks out the back side as well as the front. This crank allows me to turn the shaft/screw manually to reposition the print bed to do things like level the bed, work on the undercarriage, etc.
It fits tightly (I have to pry it off with a screw driver) and lets me spin the motor with my finger very easily.
I originally printed it at 50% infill and the part that grabs the motor shaft didn't last. This version was printed solid and it is holding up well. I used 0.2 mm layers, Coex3D green ABS, no support material needed.
Materials and methods
Only your favorite ABS filament, an not much of it.
Edit in 3dslash
Issues
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