Prusa filament holder
thingiverse
I loved this filament holder for my creality ender 3 v2 so I added an end to be able to make it work with the prusa filament holder. It is a must have for TPU printing. you will need (2) 608 bearings for the roller (I recycled some from fidget spinner). I would highly recommend degreasing the bearings. Just put them in a small cup of acetone or isopropyl for a few minutes and dry them good. They will spin much faster this way.
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