This is just a quick and dirty way to reliably mount a raspberry Pi cooling fan to an Orange Pi 5 and maybe keep a tiny fraction of dust off it. I mounted M3 nuts to long screws to act as standoffs on the bottom. Bolt pattern for the fan is 24mm center to center. I tightened up the big gap around the USB port a bit, so it won't be as huge as the pix..
The author marked this model as their own original creation.