30mm square fan grill

Printed this with 0.2mm layer height. My hotend oozes quite a bit (bowden e3d v6 with remote greg's extruder) so I had a lot of cleanup work from bridged filament. The spacing between the grill ribs is very small so you might have to clean it up with an exacto-knife afterward.

I needed a fan grill for my 30mm fan because I ruined the one that came with my E3D V6 after accidentally stabbing it with my exacto-knife while scraping my heat bed... So this one will protect it from that in the futur