Universal Filament Spool Holder

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This spool coaster boasts an ultra-smooth ride, featuring bearings that accommodate any size filament spool. I designed it myself, sharing it now because it simplifies switching between spools, runs silky smooth, and is built to last with ease. The build process involves a press fit assembly. To get started, pick up some bearings from a local skate shop and cut the metal parts to length at Metal Supermarkets. A quick edge smoothing and snap-together build are all it takes.