Printrbot Simple Metal Filament Holder
thingiverse
This is probably yet another filament spool holder. I designed it from scratch, but following the ideas of other spool holders. This one sits on top of the Printrbot's two vertical rods. It is comprised of 3 3D printed parts - a base plate, and 2 side plates. They were intentionally designed seperately (and needs to be assembled) as the printing them flat will give them the most strength. It also eases assembly. You will also need 4x #608 bearings, and 2x 7.94mm x 110mm aluminium rods (e.g. K&S 83046). The mating sections were intentionally designed to be slightly tight fit, and you can use sandpaper to remove material to get a good fit.
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