Prusa i3 spool holder laser cut.
thingiverse
This is an add-on spool bracket for the Prusa i3 laser cut series of frames. Teh key feature is 608 bearings for the ends are captured in slots that allow for easy spool changes and minimal friction. Cut from whatever material you feel like. It only needs to be thicker than 3.5mm and I used plywood about 5.3mm.
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