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Unread 15-01-2009, 15:33
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AKA: Glenn
FRC #0359 (Hawaiian Kids)
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Re: Gearboxes for shooter?

Quote:
Originally Posted by gorrilla View Post
well, the farther we shoot the ball, the less accuracy we have(unless we use the camera and everything) so we went for 4ft as our scoring distance, at less than 4ft it works just as well,


we're using two of these wheels bolted together(on the same shaft).... http://www.andymark.biz/08firstwheel.html

not baseball sytle, just the two wheels bolted together on some 2x4's at 8inches tall and 8 inches wide



we used the toughbox because thats all we had to get the wheel spinning fast enough(we dont have the parts for a direct drive off the cim)
We also used two AndyMark wheels, but the 2 in. wide ones.
We tried all kinds of configurations, different motor speeds, different backspins, etc.
We came up with one big conclusion.
Unlike the Aim High game when we dealt with just simple Poof balls, these orbit balls comparably are really difficult to deal with. Too much slipping and inconsistent distances, depending on where it makes contact with the orbit ball.
Maximum distance and time that the shooter mechanism can be in contact with the ball prior to release from the robot, really improves the accuracy and grip on the ball.
I'm not going to outright come out and say it, but there is "one" robot in '06 that I think we'll see a lot of this year, much like 121 last year.
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Last edited by waialua359 : 15-01-2009 at 15:35.