ender 3 pro spool holder bearing attachment
thingiverse
simple attachment for the original ender spool holder. just unscrew the stock axle, fix the attachment to the metal part ( i just used two zip ties) and screw the m8 bolt with the bearings and spacers on. you need an 80mm m8 bolt (80mm without head), three 608 ball-bearings, a thin metal spacer, 1 spacer.stl, 4 spacer2.stl and 1 spacer3.stl. this is going to take a lot of stress of the extruder as the friction is near zero. removed all extruder stepper slipping/clicking issues for me. you can see i used metal spacers because i had them laying around but the printed versions should work just fine.
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