Quote:
Originally Posted by bigbeezy
Personally I think using omni wheels on the corners is a bad idea and I strongly advise against it. As a driver, whether on offence or defence, if I know that you have omni wheels on ur corners I will use them to my advantage. They may make your robt easy to turn... but that just makes my job a whole lot easier. i just tap ur corner and you spin like a top. I can pretty much push you where ever I want and you can't do much to stop me.
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This works on 'normal' six wheel drive bots that have a dropped center as well. The way I look at it is this: If you build your robot so it's easy for you to turn, then it will be easy for others to turn you, too!
In 2007 our robot was the standard 6wd, dropped 1/8" center, 6" wheel drive train. When people played defense on us, they could turn us no problem.
In 2006, the best defensive bot I've ever seen (1662!) had four 8"x2" wheels, all at the corners. Their robot had quite a bit of trouble turning, but when they wanted to stay in place, they stayed in place.
It's just another one of those tradeoffs...