Dry-box Filament Pass-Through

I was building my own drybox and needed a port/pass-through to route filament out of the box. I wanted something that would utilize a PTFE tube and a fitting to hold that in place. I also wanted to be able to seal it off when not in use, and have it be reasonably air tight to keep moisture out. Finally, I thought it would be good to be able to incorporate a small piece of foam filter to keep any dust or dirt before out of the PTFE tube and out of my extruder.

I couldn't find anything meeting all these criteria, so I designed my own. I feel strongly that people should provide the CAD source files for their designs, so that others can easily remix, and so I have done so here.

In addition to the Fusion 360 and STL files, you will find a PDF and SVG file. These are to be used for laser-cutting the gasket. I cut this gasket out of 2mm EVA foam using a Glowforge laser cutter, but you could also easily cut something out with a pair of scissors.

To use this, you will need some PC4-M10