Yet another Rpi 3 case. I made it while designing my printer enclosure.
I needed a freestanding case, that didn't need require extra stuf to stay upright, while leaving all the necessary ports open, and with minimal extra hardware.
All ports are exposed, besides the screen CSI connector. You could possibly use the camera one on the bottom to pass both ribbons on the outside.
Devil Design PETG
Ruby Red Transparent
Use supports if you want the screw holes to be extra clean, don't if you just dont want to!
CAUTION: Make sure your printer is calibrated, and dimensional accuracy is great, tolerances are TIGHT.
Rpi sits nicely on his stands, held in place by the case itself.
Use four M3 nuts, and four M3x25 Hex bolts to secure the two parts together.
Make sure to remove the microSD card before placing the Rpi inside.