OrangePi Zero 3 case (version without expansion board)

A little box for the OrangePi Zero 3 board with its passive heatsink.
The aim was to make a box without the wifi/BT antenna, but you can connect it nevertheless.
The additional spacers are provided in case you lose the ones provided with the heatsink.
The assembly is a bit tricky since the spacers may move around until you place the screws.