About this 3D model

I have cats and dogs and I noticed pet hair would float onto the filament spool during a long print. I made it for the Prusa Mk3s T bar filament holder. Clamps on just tight enough and you can put on a second if you are using two spools. A bit of a gap between the top of the spool and the actual cover but it works just as good. 2/2/20: I added a second one that has a smaller gap and has a slight overhang that I like better.