Universal Spool Holder for M8 Threaded Rods v2 With Axial Bearings
thingiverse
My spool holder (see remixed from) had the issue, that the 608 bearings have very low friction. On some movements the spool turned to far so that the filament got loose and sometimes it even jumped off the spool. This design uses axial bearings which get pushed from the sides to the spool holder. This generates the right amount of friction to prevent that the filament get loose but doesn't drag much on the filament. You'll need besides the prints: - F8-16M axial ball bearings e.g. https://www.aliexpress.com/item/10pcs-Lot-F8-16M-8mm-x-16mm-x-5mm-8x16x5-mm-Axial-Ball-Thrust-Bearing-Brand/32740768957.html - a 8mm threaded rod
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