3d Print Optimizations

[Moulebutz]

-When printing with 0.4 Nozzle some features would benefit from being beefed up(here in Red)
Especially the main_body bottom right hole is having a hard time being sliced, even with thin walls active.
-Orange sections could be optimized to fit 2 perimeters inside by slightly thicken the model.
-I simplified the bottom right motor mount a little to optimize it for 3d printing. (in green)
-I also extruded the main_body lower right hole by 1mm to be able to fir a 16mm screw since they're more common.

-please update CAD to latest Version (doesn't match witch stl's