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Originally Posted by Lisa Perez
We like to keep things simple yet maneuverable, so we will be going with a tank-steer 4WD this year. Although four wheels may not have as much contact with the ground as treads, we feel that if we obtain wheels with a high friction coefficient, we can achieve almost as much traction, with less scrub.
At any rate, with the 4WD drive we should be able to have a decent turning radius, which will lead to greater maneuverability, which in turn will allow us to go around the goals and any of the other 5 robots with ease  . |
um just to make sure, higher coefficient of friction=more scrub if non 2wd or omnied. and if you use tank steer, not as in treads but as inright power and left power. not car steer with one power and one steer, turning circles should be 0. as in turn about itsself. right forward, left backwards. so turning circle should be the same. turning rate is the word you probably wanted to use.
good luck! i personally like 4wd over any drivesystem. just an opinion. and we know you guys can make serious 4wd machines.