I modified the Raspberry Pi Zero 2 W case from Sören to better suit my preferences.
.STEP file includes the Raspberry Pi Zero 2 W, as well as the Geekworm C296 cooler and its hardware
Cooler: Geekworm C296
Amazon ASIN: B09QMBCXLB
Unfortunately, you will still need to secure the lid to the case with some glue or tape. The walls are smooth enough, and there's not enough pressure against them to keep it held together. I am currently working on fixing this, but I wanted to get the model out there first.
The layer of case that the nut and screw tightens on is rather thin because of the length of screw that comes with the cooler, but you shouldn't be applying too much pressure to the PCB anyways.
This model is sized for .2mm layers.
I recommend supports on the port holes, but NOT the nut holes. They are designed to be support-less. Removing supports from the nut holes after printing may damage them.
Credit to wiki.geekworm.com for the RPi0 2W .Step file.
Geekworm C296 Cooler was modeled by me. Should me as correct as it needs to be.
The author remixed this model.
This was a great base model, and will generally work well, but it didn't quite do what I wanted.
I added slots in the bottom of the case for m2.5 nuts, allowing you to secure the Pi and cooler to the case with the cooler's included hardware.
I slightly narrowed the slot for the microSD card, slightly widened the opening for the HDMI port, made the bottom of the case slightly thinner, and up-sized the lip of the lid to be an exact fit. I also slightly depressed the center of the inside of the cooler, so that there is only contact at the corners, around the screw holes.
Also removed the RasperryPi logo in the bottom, since it was in my way. If you still want it, you can copy it from the original model from Sören, as it has the logo as a set of bodies in the bottom.