The concept is great, but I had a little trouble with the implementation. First, there are some protrusions on the bottom part that don't have matching cutouts on the cover. I edited the .stl file to correct that, and now the two parts fit together great.

I also found that the M2x6 screws are a little long and stick out the back. M2x5 would be ideal, but I think M2x4 would work too.

I didn't make any changes to the bottom part, so you can get that from ScubaScott's original