Empty spools from 3D printer ... than 30 grams of filament, which makes printing them an attractive way to use up the last bits of filament rolls. We’ve seen drawer-style storage for filament ...

Most 3D printers come with a pretty basic filament holder — often little more than a bar to hang the spool on. [Ivan Miranda]’s 3D printers run bigger spools than most, though, so he had to ...