This is a simple inline dust and debris collector for filament. I'm currently using it on my Mendel90, but this same design can likely be used on almost all other 3D printer designs. The design is a simple 5-sided cube which allows for the insertion of whatever media you choose to collect the dust/debris (mine uses a small piece of sponge).This can be used with either 3mm or 1.75mm filament. This design is relatively easy to print compared to some threaded 2-piece designs out there.