Disassemblable filament spool

A disassemblable filament spool for all those leftovers of filament lying around that you want to print with, but are afraid of them unrolling and causing a mess.

Inner diameter of the filament spool axle is 44mm and outer is 60mm. The diameter of the whole spool is 200mm and the distance between the two walls is 55mm.

EDIT: 26.12.2020
I added V2 of the two filament spool parts with the thread length reduced as it is not really needed to be that long.
More importantly, the inner thread part of the filament spool is shrunk to 95% of the original size as PLA prints tend to expand a bit which causes the two parts to have problems threading to one another.

I strongly suggest you print the V2 of the two filament spool parts.

Tried and tested and works like a charm.