Orange Pi Slices Zero 2 - 40mm

I liked the original design of this case for the way it keeps the antenna snugly to the side and allows for plenty of air flow. 

All I did was add a stylized orange-slice pattern fan guard. Print upside-down for easiest orientation.

(The slight bulging you may spot in my print was due to a retraction prime distance amount: my retractions weren't tuned correctly but it wasn't worth re-printing for me at the time. This issue shouldn't come up for you unless you have the same problems in your settings.)