pic: 3rd Iteration of Sheet-Metal Chassis- Swerve

[Hawiian Cadder]

in your current configuration it will be impossible to turn. I looked at swerve a while back and i think that having the steering chained in an X was what I was using. as is you cannot orient the modules into a circle, and you cannot turn in a "short tank" style. the only way that this will turn is in "long tank" style, and because it only has 4 wheels, that may be very difficult.