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| Re: The Omni [message #47374 is a reply to message #47370 ] Mon, 23 April 2012 13:19 UTC |
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Looks like a fun concept!
I wonder if would be strong enough to grip something...
[Updated on: Mon, 23 April 2012 13:31 UTC]
A good head and a good heart are always a formidable combination.
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| Re: The Omni [message #47380 is a reply to message #47374 ] Mon, 23 April 2012 14:33 UTC |
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I doubt a single 'digit' would grip anything 
The idea for The Omni sort of came from THE ROBOT WORKING MODEL HAND. It would be entirely possible to make a three fingered hand with one 'tendon' per digit using the same technique, but that has function and has been done before.
The Omni is pretty much a useless and possibly functionable model 
Paul
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| Re: The Omni [message #47454 is a reply to message #47380 ] Wed, 25 April 2012 05:52 UTC |
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Sir, I think you just unwittingly explained the mechanics of a tentacle! 
it's a pretty amazing concept, being able to make a self contained "thing" move in any direction you want, I can imagine a series of these with tiny servos at the end of each module making a robotic tentacle, would be amazingly useful in search and rescue operations such as searching through rubble or inside caves with tiny entrances 
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| Re: The Omni [message #47568 is a reply to message #47370 ] Fri, 27 April 2012 09:20 UTC |
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have you thought of using nitinol?.. its a memory wire that can bend to a shape when a current is passed through it, rather than using servos.
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| Re: The Omni [message #47569 is a reply to message #47568 ] Fri, 27 April 2012 10:00 UTC |
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But memory wire gets hot when working....
Bill Bedford
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| Re: The Omni [message #47570 is a reply to message #47569 ] Fri, 27 April 2012 10:10 UTC |
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| BillBedford wrote on Fri, 27 April 2012 10:00 |
But memory wire gets hot when working....
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 - heat is why memory wire works.
Personally for actuators, I favour air muscles 
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| Re: The Omni [message #47606 is a reply to message #47570 ] Sat, 28 April 2012 05:38 UTC |
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fair enough:)... i have seen a little remote control plane that used nitinol, how hot does it get?
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| Re: The Omni [message #47609 is a reply to message #47606 ] Sat, 28 April 2012 09:28 UTC |
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It's not the absolute temperature that is important, it is the temperature of the wire relative to the encasing plastic. WSF will be able to deal with a much hotter wire that, say, any of coloured detail.
Bill Bedford
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