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Unread 05-02-2012, 15:28
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JamesCH95 JamesCH95 is offline
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Re: Gear ratios for launcher

Quote:
Originally Posted by swwrobotics View Post
Our mentor said the we should have as little amount of contact with the ball as possible to pervent too much deformation and loss of accuracy. So you're right, that definitely could be the problem. But just out of curiosity, would it be worth more to have a high gear ratio or a larger wheel diameter?
It's true that you should have as little contact with the ball as possible, but you still need some minimum amount of contact, otherwise you won't impart much energy to it. Many teams seem to have found that 1-2" of pinch on the ball will work well.

With a 6" wheel you could be looking for 2,000-5,000rpm axle speed, depending on what range you want. the actual ratio will depend on what motor(s) you're using.
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