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Universal Filament Spool Holder
A super smooth spool coaster with bearings that will fit all sizes of spools. There are literally thousands of filament spool designs online - this is the one I made. I decided to share it because it allows me to easily switch spools, it is very smooth, sturdy, and easy to build.
Assembly is press fit. I picked up bearings from a local skate shop and got the metal from Metal Supermarkets cut to length. All you need to do is lightly smooth the edges of the metal parts and snap the parts together.
Design profile draws influences from the profile of the Printrbot Laser Cut Spool Coaster.