Tilted and sliced double tetrahedron Raspberry Pi 3 case

I was looking for a raspberry Pi 3 case to house my Home Assistant controller, and wanted it to fit nicely next to my upcoming Akita Smart Home (you can read about it on KickStarter, its shape is basically a tilted hexagon pillar: https://www.kickstarter.com/projects/akita/akita-instant-privacy-for-smart-homes) but unfortunately could find nothing to my taste. This is when I started designing this tilted and sliced double tetrahedron case.
I designed this case from the ground up to lay on a she