Smaller Trinity Box

Thanks to usermod and Martinfun1987 for their models!
https://www.thingiverse.com/thing:1159729
https://www.thingiverse.com/thing:222680

I've created several projects using versions of the Trinity case and thought some
might find this version useful. It basically eliminates the middle piece of the original box.

This version has been kept largely plain so you can add holes and cutouts
as needed for your project.

Mods:
I kept breaking the original screw holes for the Uno, so I inco