If you have a 3D printer, chances are ... on the design of their filament holder. It’s okay though, it’s not like having a toilet roll holder for your spool will result in failed prints ...

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 ...