Quote:
Originally Posted by Andrew Lawrence
That is correct, but in most cases* an all-omni drive would just render you powerless against your opponents since you have almost no traction. A traction + omni mix, a butterfly drive, or drop down casters fixes this by adding an area of high friction to rotate around while the low friction spins out of the pin.
*Ellen Green and 33 are exempt from this
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I've seen other robots "roll" around defenders with all omni drives. See 9973 in the 2013 offseason, for example.
If it's a head to head pushing match, you're right, a omni drive would get creamed, because the rubber on omnis is no match for roughtop. On the other hand, if you're a robot getting defended, you shouldn't really be getting into many head on pushing matches, especially if you're an all omni drive (or butterfly drive). I'd argue that all omni drives are better for anti-T bone pinning purposes than half omni half traction (or drop down casters, etc.) as they're even less sideways friction, and give the defended robot more degrees of freedom to roll off in.