I couldn’t find a case online for the updated Orange Pi 3b to version 2.1 and decided to correct this situation.

The case is very tight, but fits: a cooler (30x30x10), a WiFi antenna and a CR2032 battery. I even managed to attach small heatsinks from old stepper motor drivers. I placed them on a special heat-conducting glue and pressed them with a clothespin. Then there is enough space right next to each other.

The Nvme SSD gets very hot, so I thought of everything so that the processor cooler would blow everything up to the SSD and, through the holes under it, remove air from the SSD as well. But for this you will also need to print out the stands so that there is air circulation from below.

I ran a stress test for the CPU, GPU and SSD simultaneously. The cooling system proved to be worthy and throttling did not occur.

I used this case for the klipper, so I left a small window for the GPIO to drive the BTT Relay. If you don't need it, I suggest covering this window with a sticker, because... without it, air flows that should go through the SSD will go through this hole.

For those who want to do some modifications, I STEP files.

Anycubic

Kossel

No

Yes

0.25

20