About this 3D model

Arduino UNO R3 case. There is a lot of this stuff in the internet. I simply wanted to have my own design. Maybe the lateral windows can be improved. What it includes: -Reset button -Holes for mounting with countersunk screws (D3mm or similar) -Space for every I/O it needs. -Holes to see the LEDs What it needs: -2x self-tapping screws D2 x 6 or similar (if you use countersunk screws, they must be longer) -2x M3 nuts (DIN 934 or equivalent) -2x M3 x 10 countersunk screws (DIN 7991, ISO 10642, DIN 965 or similar)