I made a remix of the blank backplate to have holes for the RPi3 B and I wanted to put a small spin so I made 3 versions to pick from. I'm working with old filament I got in a trade, so please don't be upset about the poor quality in my photo I posted. Once I get some good filament(may be a little while though) and tune my Ender 3 I will make a new print of each version and I will post a better photo of each.
The author remixed this model.
Made a back panel for the RPI3 B's. Also increased the gap for the RPI on the inside.