Ender 3 / Ender 2 / Creality CR-10 Extruder Knob
thingiverse
I'm excited to use this simple geared knob for my CR-10 extruder. It fits most printers with Nema17 stepper motors or generally with 5mm shafts. I've found it's an easy way to manipulate the feed and a nice visual tool to spot my retraction behavior. It's a very tight fight, so you may want to upscale it by 0.5-2%. Update: 01/03/2018 I recently upgraded to V2 High Clearance / Extended version. This new design allows me to check the filament rolling between the gear and the pulley. The Gold knob is the short version (v1), while the Gray knob is the High Clearance / Extended version (v2).
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