Lulzbot Mini filament spool bushing w/ flange, 38mm spools

thingiverse

I had noticed jerky behavior in unspooling filament during prints on my Lulzbot Mini, so I'm glad I found this solution. However, the inner diameter of the filament spools I use is smaller than the original design. That's why I created this new design to work with these spools (inner diameter ~38mm). I printed it without supports in ABS and tested it on both the factory spool arm and spools with a 38mm interior diameter. UPDATE, 24-Mar-2016 : I added a version with a flange. The idea is that this should prevent vibrations from causing the bushing to shift and the spool to slip off one end. Source: GitHub Print Settings Printer Brand: MakerBot Printer: MakerBot Replicator 2X Resolution: 0.20 Infill: 10% Notes: It should print as-is with bridging, though you're free to turn on supports. I printed it in ABS on my Replicator 2X and it fits great on the Lulzbot Mini. Post-Printing Installing on printer It should just overlay onto the factory filament spool holder arm inside the spool. How I Designed This Reference design I imported the .STL from the other design into OpenSCAD, using it as a rough guide.