Improved Sharp x68000 Raspberry Pi 4 Case

**10.04.2021:** *In use this case shows some serious deficits when it comes to actually using it with anything external. No USB or network plug will fit and let the case stay upright. Connecting a hard-drive is especially hard since there is almost no room for the USB adapter and cable. Expect to make special cables if you want to use it.*

**29.03.2021:** *I updated a few of the models with some small changes to center the base properly, deleted the inner tabs since they were not doing anything for stability, and added a bit of a cutout around the place where the LED go.*

This is an improved and fixed version of the old X68000 RPi case that existed since 2015. I changed the ports so they fit an Rasperry pi 4.

I resized a lot of holes for M3 (aside from the center ones - for best result use short self tappers here) and added captive nuts. If the nuts won't stay in place add a bit of superglue.

I added some fun detail to the too plain model. Now it has knurlling on top like t