Quote:
Originally Posted by AdamHeard
I didn't say a single thing about traction. I was addressing turning ability.
Assuming all the wheels are the same, and all are in the same plane, a 6WD will turn better than a 4WD. both systems will have the same traction.
Also, if you take out the two opposite corners of the 4WD for omnis, it will turn easier, but it will have slightly less traction (based on currently available omniwheels).
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The original question from corpralche was about traction, thus I responded about traction.
And turning problems have as much to do with wheelbase as CoF. If you drive with the 36" wide, then you will have shortened your wheelbase enough to compete (and even win against) 6WD "rocker" robots. Omni's on the corners are not required and reduce the traction advantage of well designed 4WD robot.
If you look at my signature you will see 1824's robot from last year. It is 4WD, Skid steer, with High CoF (~1.3) wheels and we had no problems turning and we were able to push most 6WD robots with little problems.