Case for Raspberry Pi 7" Touch Screen

I remixed CdnReprap's awesome Pi case (Pi 2/3) to add a broader base, a 4010 cooling fan, and updated it for the Raspberry Pi 4b I use for OctoPrint, but especially OctoScreen. This is one for the Raspberry Pi Touch Screen, and may not work with the knockoffs. It might also work for the B+,2B,3B,3A+,3B+, but you may need to manually expand the ports. Due to the usb port on my screen, I had to add more than 8 mm of depth, yielding about 3 mm clearance between the boards. If you use other ha