Orange Pi Zero3 + Relay Case

This is a case for the OrangePi Zero3, with a relay in the side. I used an external wifi antenna to make the signal better, a little fan (always around 35ºC) and a relay connected to gpio, to activate external devices (in my case, some LED) I Used also a female USB por for a little webcam. To mantain all together just used litle magnets. Diameter is 4x 3mm hight. I Designed all with 2.5mm metric screws on base, and made just 2 sizes of printed screws also, to keep boards on place...but they are too small, dont work as well as i wanted. Anyway, just placing boards on place is enought to keep them fine. Easy to print, no matter filament, layer height and infill. Mine is with 0.6 nozzle, 0.24 layer height and 15% infill, in PLA. When placing together, magnets do their work fine and all stays together firmly.