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Unread 26-01-2014, 10:39
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pic: Perfectly Timed Ball Levitation
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Unread 26-01-2014, 10:40
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Re: pic: Perfectly Timed Ball Levitation
magic!
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Unread 26-01-2014, 21:28
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Re: pic: Perfectly Timed Ball Levitation
Anyone tried filling the ball with helium? Hydrogen would be out for safety reasons, I suppose.
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Unread 26-01-2014, 22:41
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Re: pic: Perfectly Timed Ball Levitation
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Originally Posted by Bill_B View Post
Anyone tried filling the ball with helium? Hydrogen would be out for safety reasons, I suppose.
I doubt that the buoyant forces provided by the helium would be enough to make the ball noticeably lighter.
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Unread 26-01-2014, 22:44
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Re: pic: Perfectly Timed Ball Levitation
Is ball levitation during a match legal? Potential method for herding ball.
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Unread 26-01-2014, 22:46
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Re: pic: Perfectly Timed Ball Levitation
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Originally Posted by lior9999 View Post
Is ball levitation during a match legal? Potential method for herding ball.
I'm pretty sure I heard from someone that it's legal, but don't quote me on that.
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Unread 26-01-2014, 22:58
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Re: pic: Perfectly Timed Ball Levitation
Quote:
Originally Posted by Gregor View Post
I'm pretty sure I heard from someone that it's legal, but don't quote me on that.
I would imagine it would be if you used the Coanda effect and a fan powered by a legal motor with adequate safety guards.
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Unread 26-01-2014, 22:58
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Re: pic: Perfectly Timed Ball Levitation
A kid on our team suggested "Bernoulli Bot" a bot that operates by floating the ball above it via a large fan.
To go over the truss, simply rev it up and puss the ball higher. Momentum and Bernoulli's principle would keep the ball centered above the robot.

Of course it is one of those joke ideas. We are NOT building a robot to do this
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Unread 27-01-2014, 00:00
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Re: pic: Perfectly Timed Ball Levitation
Why'd you give away that dark magic? You should post the picture first and explain it a day later
That brings up the hype, making everyone think you are a supernatural!
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Unread 27-01-2014, 00:47
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Re: pic: Perfectly Timed Ball Levitation
Quote:
Originally Posted by BBray_T1296 View Post
A kid on our team suggested "Bernoulli Bot" a bot that operates by floating the ball above it via a large fan.
To go over the truss, simply rev it up and puss the ball higher. Momentum and Bernoulli's principle would keep the ball centered above the robot.

Of course it is one of those joke ideas. We are NOT building a robot to do this
We tried this with a big fan on day 2. Our calcs said we'd have to have the air go about twice as fast as our fan went but we decided to try it anyway. Our calcs were right.
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Unread 27-01-2014, 07:55
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Re: pic: Perfectly Timed Ball Levitation
Levitating a ball is a pretty good trick. But can you balance a robot on its front bumper 3 feet off the ground?

http://www.chiefdelphi.com/media/photos/39388
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