Raspberry Pi 4 - Simple 40mm Fan case

This design is inspired by this model https://www.thingiverse.com/thing:3768077

I believe this case will be also compatible with Raspberry Pi 3.

I wanted to use a 40mm fan and M3 screws for the fan and the Raspberry Pi 4, so I had to design a new model.

For attaching the 40mm to the case I used:
-2x 12mm M3 screws
-2x M3 nuts

For attaching the fan case to the Rpi you will need M3 18mm (or larger) screws .

It was designed with Fusion360, I attach the model in case you want to edit it by yourself!