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Originally Posted by Kevin Sevcik
I'm having trouble convincing myself this would work. Specifically, the omnis are blowing my mind at this point. I know the theory behind them is always that they sideslip to make turning super easy, but they also end up getting pushed side to side. The one arrangement I can sort of envision is when your hinges are at 45 deg and the sides are now perpendicular to each other. If just one side moves, the opposite side will side-slip and it'd end up going that direction. So I'm skeptical it'd do exactly what you think it will in that arrangement, and thus I'm not entirely certain about any other arrangement.
It's still an interesting design, though.
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Hmm...The omnis were originally just so that you could open and close the sides without an extremely strong motor. If you replaced them with grippy wheels, it would just take a lot more power to pull the wheels sideways when opening or closing the wheel-base.