Flashforge Finder external spool holder with bearings (remix)
thingiverse
I loved the spool holder designed by Creative Tools, but since I usually work with 1 kg spools, I was worried about the friction on the shaft; that the force needed to pull filament from a full spool might eventually overload the extruder motor. So I swapped out the spool shaft for one from @kristofera's design (which is also a remix!), which has four bearings. Now my spool spins with ease! You'll need 4 standard 608 type bearings. I printed it using auto "treelike" supports and brim. The maximum spool width is 80 mm. EDIT: The STL needs to be scaled to 10% to get the right size. NOTE: For a full spool holder like the one shown in the photos, you'll also need this arm: https://www.thingiverse.com/thing:1967410
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