Banana Pi clip case with drive bay

These cases are designed to be laser cut from 3mm or 1/8inch acrylic.
The tolerances are very close but the design has been successfully
realised, though even the protective plastic covering upsets the slot
sizes enough to cause issues.
The imperial file has the clearances for 1/8th inch the metric version
will not fit.
The original design files are kept in my https://github.com/kyllikki/designs/tree/master/bananapirepository.
I used 10mm long M3 nylon bolts to hold the board to t