Masterspool

This is my take on a Masterspool design. I'm using this for years on “Das Filament” spools. I haven't tested any other brand with them. YMMV. There is a filament catch inside one part of the spool where you can fixate the end of the filament without it poking holes inside your storage bags.

I added .stp files in case you want to make modifications.

Prints without supports.