
Ball Bearing Ender 3 Spool Holder
myminifactory
Simple Ball bearing for filament spool on Ender 3, external diameter 57.5 millimeters, internal diameter 32 millimeters. The balls are airsoft BBs. Update 07/26/2018: Another outer ring is added, with a diameter of 73 millimeters. Update 08/18/2018: An additional outer ring is installed, with a diameter of 53 millimeters compatible with ICE filament spools.
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