Simple dust filter - Ender 3 v2 neo

I couldn't find a good filament dust filter so I designed my own. Very simple filter, not interfering with the printer parts. Each filament has its own filter, so changing filaments is faster. We stick the end of the filament into the sponge so that the dust is collected evenly around the filament and not just from the top and bottom.

As a result, we have:
- fast printing (20 minutes)
- excellent dust collection
- quick replacement of the filaments

No support. Dimensions adjusted to my Ender 3 v2 neo. I attach a FreeCad file to edit the parameters yourself.