OpenSCAD, Customizable PCB housing

Housing that can be customized to fit my various non-standard PCB sizes.
Edit the OpenSCAD file:
- Set generate_upper = 1 to generate upper box half
- Set generate_lower = 1 to generate lower box half
Or set both to generate both parts side by side

Define the size of your PCB including top component height : pcb = [45,68,15];
and the thickness of the bare pcb (for claming): pcb_height = 2;

Wall thickness can be adjusted with
- owt = 3; // outer wall thickness
- iwt = 2; // inne