If you have a 3D printer, chances are, the company you bought it from skimped out on the design of their filament holder. It’s okay though, it’s not like having a toilet roll holder for your ...

The PolyDye system installed on an Elegoo Neptune 2 printer. (Credit: Teaching Tech, YouTube) Being able to 3D print FDM objects ... (including inkjet cartridge holder) and some wiring.