Quick Change Filament Filter

This is a fully parametric quick-change filament filter designed to keep dust on the filament from getting into your extruder and clogging it. This was inspired by the CreativeTools Universal Filter, but trying to shove a sponge into that closed filter didn't make sense to me. So instead I used OpenSCAD to design a two-piece threaded filter that screws together, and put slits on the side so it could be slipped onto and off of the filament without even needing to disconnect from the extruder. Then I added tabs on the side so it could still easily be unscrewed even if it ends up with a little lubricating oil on the side. After creating this I found Kezat's filter which follows the same philosophy, so I listed this as a remix since he had the idea first.

I added a 1.75mm and a 3mm version, since it is only one variable to change. I only tested the 1.75mm version, but if there are any problems with the 3mm version let me know in the comments.

It is important to select a soft spo