Establish main drawing parameters
set stroke-width to 0.01 or 0.001 for production/DXF
background rectangle
*** delete this for production drawing ***
Bounding box/warning strip
*** delete this for production drawing ***
I have no idea why it needs the extra translate() to line up
Corner crosses, centers inset 0.5mm, tips ON border
long side brace to glue on
Extra bracing for thin arm, flush with box
Cut-out for gamma28 duct.
Delete this for actual brace cut, but delete everything else to cut
hole for duct on main box.
Vent holes
Delete this for actual brace cut, but delete everything else to cut
vent holes in main box.