Printercase disc-lock

Build a very similar box and saw that locks. The Idea is great so I used it.
Because my box is opened from the side, I got less wight of the glass. So the upper two holders would be enough, but: I had to make it cat-proof too...
So I siced the holder to 2/3 of the original sice, while the screwholes are still the same sice. I didn't wanted to print me an extra handle, so I changed the 3-holes cap ("Kappe") that they got an integrated handle.