Filament spool holder ends for a 10mm bar

thingiverse

UPDATE 2017-06-19 A Spool Holder Approach to Avoid This approach is truly cumbersome as it requires fiddling with various spindle diameters, among other things. I've moved away from this and now use a simpler, more reliable spool holder from https://www.thingiverse.com/thing:629381. I strongly recommend it to you as well. It does require a bit more material and four 608 bearings, but trust me when I say that you won't regret it. My JGAURORA A3 printer came with a nice filament mount featuring a 10mm threaded rod for holding the filament spool. Unfortunately, the filaments I purchased have significantly larger diameter holes through their centers and don't rotate smoothly as a result. These simple adapters make it easy to center the filament spool on the 10mm bar. One has a diameter of approximately 53mm and the other about 50mm. I need both sizes for the various filaments in my collection. With these adapters in place, the filaments spin smoothly now. You'll need to print two of whatever size you want - one for each end of the spool.