Quote:
Originally Posted by Daniel_LaFleur
Here, I completely disagree.
A well designed 4WD robot can have as much traction as a 6 or 8 or 14 wheel drive robot.
Coefficient of friction is Coefficient of friction. Contact patch size or number of wheels or whether the starts are aligned has nothing to do with traction. The only 2 things that do are Cof (Mu) and maintaining contact with the surface in question.
The only advantage that a 6WD robot can produce is a shorter wheelbase ... and that can be mimic'd on a 4wd robot by driving wide instead of long.
|
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).