[Rick TYler]

Originally Posted by KenWittlief

the proof of a design is in its performance. If you push a robot by its bumper zone, and it tips over, then it IS a tippy robot.

Our shooting mechanism had serious issues, but our robot didn't. Despite the fact that it was nearly 60 inches tall, we never tipped over in competition. The reason we didn't is that we intentionally sacrificed some functionality (big hopper for one) to achieve a really low center of gravity. Our superstructure is narrow. Motors are mounted below where they are needed and drive belts and chains go up to the mechanism they are powering. We had an average 6WD drivetrain, but our CG was about two inches above the top of our wheels. We could cruise up and down the ramp at nearly any angle, and didn't worry about tipping. Everything on the robot was influenced by making weight and keeping CG low.

We ended up being a strong defensive force even though we intended to be a top shooter. The only thing separating good defenders from poor ones is the drivetrain and chassis. In the matches I saw, nearly all of the robots that tipped over had top-heavy designs. Most would tip themselves over just driving up the ramp at anything other than an optimal angle. Those of you who feel like you were tipped over unfairly can usually look at your design for the reason.