57 mm spool hub
thingiverse
Hub for 57mm filament spools - I've had great results with Excelvan filament, no affiliation otherwise. Two versions are supplied, both work well, but the B version provides a more secure fit - use this if there are no side supports nearby. Insert a 608 ball bearing after printing and you're done. Sketchup files are included - they have been reported to be manifold. Print Settings: Printer Brand: RepRap Printer: Geeetech Prusa i3 Pro B Rafts: No Supports: Yes Resolution: 0.2mm Infill: 20% Notes: Supports are only needed for the bearing seating, you might get away without them.
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