Surprised this thing didn't already exist! I had to hastily hack together my own way of embedding a Raspberry PI 2 or 3 in a regular PC tower :)
This borrows some OpenSCAD code from https://github.com/Petraea/PCI-Bracket
You will need four self-tapping 2mm x 6mm screws or similar to fasten the Pi.
I am planning to power my Pi with a Molex 5v to microusb cable, but I suspect any spare USB3 port should provide enough power.
Unfortunately it is a tiny bit wider than a single slot so it might block the card next to it.
raspci.scad | 2.5KB | |
raspci6.stl | 307.0KB |