Raspberry PI 4 Case for Ender 3 printers

I liked the dual rail enclosure source, but I use a fan mounted straight on the CPU and not to the case. So I closed the fan hole and instead left a grid of small vents on top. I added slits to the bottom for circulation.

One improvement that could be made... Instead of screws for the raspberry pi, make the case pieces snap together. I don't have screws so the case is open a bit and doesn't look very nice.