Remix of a remix here. First, I ran the bottom through netfabb which resolved a lot of errors. Second, I remixed the top to significantly short the screw pole closest to the GPIO pins. This allows one to use a Pimoroni Fanshim inside the case.
The photo was printed in Fillamentum Vertigo Gray PLA at on "0.20mm Speed" profile in PrusaSlicer with 100% infill.
The author remixed this model.