Ender 3 Pro snap-in universal spool adaptor
thingiverse
This is a snap-in upgrade to stock Ender 3 Pro spool which allows to turn filament smoothly without bouncing back. You need to print two of this and place on the spool. Also you need 4x 608 bearing, I recommend to print from https://www.thingiverse.com/thing:3002837 I used a slice of a tick rubber stopper as support on both sides of each handle to prevent adapter slide around the spool with the weight of filament.
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