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Unread 14-01-2013, 11:01
Andrew Lawrence
 
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Re: Wheel Types: What's best, and why?

Quote:
Originally Posted by Gregor View Post
Why not gear more?
The goal trying to be achieved isn't more torque, it's more contact time. A slower wheel will contact the frisbee for longer, and in the end will accelerate the frisbee more.

Tl;Dr: Gearing the motor would work, as it would slow down the wheel, but it's not required since lowering the voltage of the motor is sufficient enough to increase contact time.
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Unread 14-01-2013, 11:17
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Ether Ether is offline
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Re: Wheel Types: What's best, and why?

Quote:
Originally Posted by Andrew Lawrence View Post
The goal trying to be achieved isn't more torque, it's more contact time.
The goal is neither or those. The goal is faster exit speed of the bee.

Quote:
A slower wheel will contact the frisbee for longer, and in the end will accelerate the frisbee more.
The higher the acceleration if the bee, the less time it spends in contact with the wheel, and the faster the exit speed will be.

If the exit speed of the bee is slower, chances are it had more contact time, but it spent that time slipping, not accelerating.


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Unread 14-01-2013, 09:28
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Re: Wheel Types: What's best, and why?

Quote:
Originally Posted by Gregor View Post
Why?
because:
Quote:
Originally Posted by Ether View Post
Your wheel speed may be too fast. According to some tests conducted by Team 2073, above a certain wheel speed the exit speed of the bee actually decreases, presumably due to slippage.
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