I modified a printer a few years ago to handle multiple filaments, but I will admit it was more or less a stunt. It worked, but it felt like you had to draw mystic symbols on the floor of the lab and ...

Empty spools from 3D printer filament are the kind of thing that begs to be repurposed, and one option is [3d-printy]’s vertical filament spool parts drawer design. The way this solution works is by ...