Snap-On Filament Dust Filter

This is a redesign of the model created by CNCKitchen. In my case that model was touching my pressure roller plate that would create a tension on the filament when retracted. I have shortened the design by 1.5mm to clear that plate but I left the hole in the same position. Also I have mirrored the model to make it more appealing since you cannot see the dust sponge anymore. beside this change I had add a small 1.5 mm lip around the opening to ensure that the dust sponge does not fall out. The la