Ender 3 Pro Knob

thingiverse

Another knob for the extruder motor, but with a small knob to speed up the loading or unloading of the filament. It may be that there is a hole to adapt in the main knob, allowing the small knob to enter and turn freely. Once inserted, you can use a soldering iron or hot iron to create a ledge on the bottom and lock the small knob in the hole, allowing it to turn freely.