Thread: Winning Drive Train
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Unread 28-04-2009, 11:17
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Re: Winning Drive Train
Quick bit of Quantitative.

Wide stance 4 wheel steer crab. We initially geared for the same top speed as the "kit" and that was too slow (7fps I think). We got scored on a lot, and chased kit bots all over the field. (1st competition)

When we geared up to go faster (approximately 25% faster) (9-10 fps), we were able to score on "kit" chassis bots easier and able to run away and run down competitors better. This also reduced spin-out during launch, but a measured traction control was implemented shortly after that, so some bets are off. (additional competitions).

Observations. Wide stance bots were observably more manueverable (4x4 crab and fixed and 6x6 short stance) than long wheelbase 4x4, and even most long stance 6x6. Mathematically, wide stance, this gives better leverage at turning/swinging the trailer. It does however reduce straightline driving stability without Gyro-assistance.