A case designed for the original Ender 3 a Raspberry Pi 4B and a 3.5" TFT screen that connects via the GPIO pins. It also comes with a holder for the stylus that comes with most of these screens. The holder snaps onto the stylus and holds it securely.
This was designed for 3.5" screens that connect via GPIO pins (all of them are pretty much the same so they should all work). This might work for other similar screens that use HDMI but I'm not sure, you will have to try it out.
This was also designed for the Raspberry Pi 4B, other Raspberry Pi models have different port arrangements/locations so you will have to modify the case, CAD files have been attached for your convenience.
Finally, this was designed for the original Ender 3, which has the mainboard SD card reader and micro USB port at the bottom right of the electronics compartment. This case will probably block the SD card reader and micro USB port on the Ender 3 Pro, and V2, which have the SD card reader and USB port at the top towards the left of the electronics compartment. However, it would be very easy to just move the mounting holes on the back of this Pi case so that it mounts a bit further to the left to avoid this problem. You can either do this yourself (CAD files provided) or if you want this, leave a comment and I will maybe upload another version for the Ender 3 Pro/V2.
See printing orientation in the image. No supports are required; the top bezel can be bridged.
This case uses the screen support part from Tronnic's case: https://www.thingiverse.com/thing:3030160. I included a copy below for convenience.
The author hasn't provided the model origin yet.