Filament Spool Rack (Ender 3 S1 Pro)
thingiverse
I liked the original design, but I didn't have a soldering iron to do heat threaded inserts, so I added M4 threads to the hex part of the insert. I also added an M4 printable screw if needed. Ender 3 s1 Pro filament holder with ball bearings. Designed to match the stock one so you can hold two spools of filament on the machine. I used 6000ZZ Ball bearings from Amazon and got 10 for $9. Two M4 x 8mm bolts required.
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