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Re: Reducing Colson Wheel Diameter
Quote:
Originally Posted by Alan Anderson
We worried about that in 2007, with an extra layer of tread affixed on the center wheels of our six-wheel-drive (it didn't have a drop on the axle). If anything, it made the robot drive more smoothly. We never decided exactly why that was.
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I'll hazard a guess:
The larger wheels spin faster, and exert more traction force because they support more of the robot's weight. That means a slight drag at the smaller wheels, which will be toward the rear in a 6WD because the front smaller wheels are lifted by torque. Rear drag opposes turning, making the robot feel smoother to driver.
__________________
Richard Wallace
Mentor since 2011 for FRC 3620 Average Joes (St. Joseph, Michigan)
Mentor 2002-10 for FRC 931 Perpetual Chaos (St. Louis, Missouri)
 since 2003
I believe in intuition and inspiration. Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution. It is, strictly speaking, a real factor in scientific research.
(Cosmic Religion : With Other Opinions and Aphorisms (1931) by Albert Einstein, p. 97)
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