Filament dust filter / oiler

thingiverse

I got tired of my existing dust filter that's broke all time, so I decided to design my own and to give it an artistic look. This is print in place dust filter with locking feature, it should be printed vertically that will allow to locking spring feature last much longer. This design almost don't need supports, I used supports only on bottom surface (see picture below), but i beleive that without supports on this surface it can work as well. As I printed this part from PETG filament I got some layers fused because of very good layer adgesion of PETG. I beleive that with PLA it shouldn't be a problem. If you got layers fused as me, please see how to solve it on the picture below. As always, your comments/sugesstions are welcome.