Quote:
Originally Posted by TheModMaster8
The reason you would want to do this is because it prevents the friction of a standard 4 wheeled pneumatic as well as, a 6 wheeled drive that has little to no wheel drop. The amount of centripetal force the robot experiences while turning either on a dime, or steering (like a car) causes the robot to stabilize on the center wheels, allowing it to turn easier... on the other hand, if wheel drop is too small, then the robot will not be able to achieve the same results because it doesn't have enough clearance to get on it's center wheels, this in turn causes more strain on the motors as well as the battery level. So basically what I am getting at is, that all wheel elevation/drops will work fine for their intended purposes, but 0.375" has the upper hand in terms of maneuverability as well as motor strain.
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I believe Eric knows about the benefits of the dropped center wheel. What he's trying to say is that 3/8" may not always be correct, and making blanket statements is misleading.
Like I said, our practice bot ran 1/4" without issues for weeks. Factors like the length of the wheelbase, number of wheels, weight, and tire pressure are all things to be considered.