Manual Filament Feeder Extruder Gear Knob Mod for CR-10 and other Bowden 3D Printers
by Devin Montes
This knob pops onto the end of the filament feeding stepper motor on many 3D printers so that you can manually feed filament in and out.
*07/16/19 Update* Added v2 which is 1mm taller and slightly stronger
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