Author Topic: manipulation by air (who needs a robot arm?)  (Read 2659 times)

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Offline AdminTopic starter

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manipulation by air (who needs a robot arm?)
« on: December 09, 2009, 12:55:04 AM »
Nothing scientifically revolutionary, but a pretty neat device to add on to a robot.

Robo-Air Jet System Makes Objects Float

Offline Razor Concepts

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Re: manipulation by air (who needs a robot arm?)
« Reply #1 on: December 09, 2009, 02:28:01 PM »
How does that work when the ball is not above the device? Something has to be sucking the robot towards the device while the air pulses repel it.

Offline z.s.tar.gz

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Re: manipulation by air (who needs a robot arm?)
« Reply #2 on: December 09, 2009, 04:49:19 PM »
It has to do with a vortex around the stream because of the two air sources I assume.
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Offline parallax

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Re: manipulation by air (who needs a robot arm?)
« Reply #3 on: December 10, 2009, 04:58:50 PM »
Absolutely incredible!  :o How do you think they are keeping track of the object's coordinates when they are moving the balls through the hoops? I didn't see anything that looked like sensors. Computer vision perhaps? So fascinating!
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Offline McFire

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Re: manipulation by air (who needs a robot arm?)
« Reply #4 on: December 10, 2009, 11:14:34 PM »
Quote
Stereo vision cameras track the objects, and a control algorithm uses the position data and a fluid dynamics model to adjust the air jet, varying its speed and direction to keep the object in equilibrium.

http://spectrum.ieee.org/blog/robotics/robotics-software/automaton/robo-air-blower-makes-ping-pong-balls-defy-gravity

Offline parallax

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Re: manipulation by air (who needs a robot arm?)
« Reply #5 on: December 11, 2009, 04:20:50 PM »
Thanks for the link, McFire  :)  Something about this concept and its execution really intrigues me
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Offline SmAsH

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Re: manipulation by air (who needs a robot arm?)
« Reply #6 on: December 13, 2009, 04:27:49 PM »
Wow, that's kinda cool... What got me was how it could control the object while it wants directly above it...
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Offline Joker94

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Re: manipulation by air (who needs a robot arm?)
« Reply #7 on: December 13, 2009, 05:21:13 PM »
the air jet was power full  :D

the amaizing bit for me was the water bottle as it is not uniform and has uneven parts and for the fruit that matter as well

over all that was really good. ;D

Offline z.s.tar.gz

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Re: manipulation by air (who needs a robot arm?)
« Reply #8 on: December 14, 2009, 03:21:14 PM »
I'd like to see it do something with both flat and curved surfaces, like a stapler or something.
The water bottle was cool though, I'll have to admit.
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Offline Hawaii00000

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Re: manipulation by air (who needs a robot arm?)
« Reply #9 on: December 14, 2009, 03:55:45 PM »
I've seen people do this stuff with leaf blowers, its really neat.
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