This is a simple remix of the top case of the excellent Pi case at https://www.thingiverse.com/thing:922740 . This one is 2.5mm higher to fit a Razberry Z-wave module within the case. I removed all of the top openings and replaced them with a small opening to fit the reset button on the Razberry, which also helps support the board. The screw holes are recessed 2.5mm, so the 16mm M3 cap-head screws that fit the original will fit this.
There's no vent holes in the case. I print these with a hex infill and no top/bottom layers so I get a nice mesh surface. I wouldn't use this without that, as it'll have no airflow.
Printed with five perimeters (to keep the walls solid), zero top and bottom layers and 25% hex infill.