100mm Exhaust Vent

100mm exhaust vent being used as part of a 3d exhaust system. I needed a version that fit into a ½ inch (12.7mm) board. I then decided I wanted a tighter hexagon grille. 

STL file provided in case you want to tweak this further. On the front face there is a untended circle that actually looks kind of good so I left it. Easily fixed in the stl file if you don't like it.

I needed a version that fit into a ½ inch (12.7mm) board. I then decided I wanted a tighter hexagon grille.