Free Spinning Spool Holder
thingiverse
Less work for your extruder: 2 8mm collars ( https://www.amazon.com/gp/product/B07V41FRZS/ ) 1 109mm long 8mm threaded rod (I cut up a 3 foot 5/16 from Home Depot, cheap enough) 1 nut for threaded rod 2 608 bearings ( https://www.amazon.com/gp/product/B073ST742Z/ ) Print one of each of the stl's and assemble as pictured. I leave on the collar on the nut side and remove the collar to swap spool on the opposite side. Tighten nut to spool. Spins super well.
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