Dryer Exhaust Vent Flap

Uploading just in case it helps someone. The flap is 4 1/8" wide (105mm) and 1 5/16" tall (33mm). Back side is slightly concave. 

Print face down with 5+ wall layers to minimize bowing when hot. PLA not recommended due to the heat.

One of my flaps fell out with the dryer on high heat, so V2 adds a reinforcing rib that resolved the issue. 

I most definitely need to reprint mine in a better color when I've got one. 

Thanks!