Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4793057.

A knob for the extruder motor's axle of the Creality Ender 3. I uploaded two models, one holed with a specific shape, an other one that remains stock. It's now your task to add something to the blank knob ! (And post a remix, by the way) It fits Nema Motors axle with a gentle pression.

EDIT 07/05/2021 : The knob works perfectly fine on a microswiss direct drive extruder, It helps changing the filament

EDIT 03/02/2021 : This wheel allows to do cold pulls on the Microswiss

REMINDER You might wanna check before printing that your fan duct/shroud leaves you enough space to mount the knob, as it didn't fit with my Satsana for MicroSwiss, that's too high.