Coffee Grinder Rotary Crank Handle
thingiverse
The knob on my coffee grinder handle fell off, and the shaft hole was starting to strip anyway, so I decided to print a new one. It's print in place and shouldn't require any supports. If you want to use it for something other than a coffee grinder, just edit a few lines indicated in the .scad file to change the shaft hole to a different shape.
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