In the meantime of working on the larger mod I made this short coaxial guy. https://grabcad.com/library/small-swerve-4
Total height from floor to top is 5.924"
width of 3.25"
this model is just missing shaft collars and spacers/standoffs.
How do you keep the vertical bevel gear from coming off the coax shaft? the vex 15 tooth gear doesn't have any type of set screw?