RPi4 OctoPi case for Creality/Ender rails

thingiverse

This is a remix of MPMPMP's own remix of John Sinclair's ( https://www.thingiverse.com/thing:3723481) popular Raspberry Pi 4 case. The former simplified the vents for a cleaner look and easier print and added a grill for the fan. I have further tuned it for use as an OctoPi host with a Pi Camera; specifically by adding a slide rail on the right so it can be mounted in the back of an Ender 3 Pro - in theory it will work for any similar 20x20 extrusion, but check the channel shape first. You can mount it wherever you want, of course, I just preferred it back by the PSU. I also added a cutout for the Pi Camera ribbon cable and tweaked some tolerances here and there. Remixed everything in Tinkercad, ran several prototypes and measured with my calipers so the fit should be good, but tight. Tolerances are a little tight on purpose, you may need to file a tiny bit to get it to slide perfect (though my last test case was almost perfect). The top and bottom pieces snap together; be careful the first time around the USB ports in front. They should stay together well, however given that this will sit elevated & attached to a platform that vibrates it's possible the bottom will work free over time; you can use a couple M3 screws in the provided mounts to easily prevent this. Finally, if you do mount it in the back I recommend a right angle USB adapter as it can get a little tight with most cables (though it can work with a regular one) as well as some cable clips for the rails to keep everything tidy.