 | | RE: Seeking Strategies on Humanoid Robots/Walkers —Andrew Phelps
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| | | Greetings Lego Fans - I am seeking tips/tricks/hints on building humanoid characters with the RCX designed for movement (2 legs, 2 arms, 1 torso, and 1 head). Ideally, it would be capable of mimicking at least 2 joints per limb (say, elbow and wrist (...) (25 years ago, 31-Dec-98, to lugnet.robotics)
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| | | | | Re: Seeking Strategies on Humanoid Robots/Walkers —Lee Lloyd
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| | | | (...) I am playing with a similar project in my spare time, I have found that your first step should probably be to write a MEL script that outputs a text file with all of your rotational data (this is easier if you are not using IK, but can be done (...) (25 years ago, 31-Dec-98, to lugnet.robotics)
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| | | | | | RE: Seeking Strategies on Humanoid Robots/Walkers —Andrew Phelps
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| | | | Interesting !! Nice to have someone else tackling the problem, I guess if your on the Internet your never alone :) That is a good idea about using MEL, it should be possible to construct a file, perhaps even standardize a format to it and then read (...) (25 years ago, 31-Dec-98, to lugnet.robotics)
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| | | | | | Re: Seeking Strategies on Humanoid Robots/Walkers —Lee Lloyd
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| | | | (...) I wish I had the time to do this, but all my modeling time gets taken up by work. (...) My solution on the Maya side of things, is to setup all the gears with a series of "Driven Keys" so that each gear in turn forces the appropriate movement (...) (25 years ago, 31-Dec-98, to lugnet.robotics)
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| | | | | | RE: Seeking Strategies on Humanoid Robots/Walkers —Andrew Phelps
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| | | | L. M. Lloyd said, Unfortunately I do not have this tool. How much does it cost? Where can I get more info on it? This plug-in is in a set of plugins called KPT and they are (gasp) FREE (this is unheard of using an SGI for those of you who aren't (...) (25 years ago, 1-Jan-99, to lugnet.robotics)
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| | | | | | Re: Seeking Strategies on Humanoid Robots/Walkers —Ben Laurie
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| | | | (...) What is Maya? Cheers, Ben. (25 years ago, 1-Jan-99, to lugnet.robotics)
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| | | | | | Re: Seeking Strategies on Humanoid Robots/Walkers —Lee Lloyd
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| | | | (...) Maya is a high end 3D animation application made by a company named Alias|Wavefront which is a subsidiary of Silicon Graphics. -- ___...___ L. M. Lloyd lee@advfilms.com SGI Animator ADV Films USA ___...___ -- Did you check the web site first?: (...) (25 years ago, 1-Jan-99, to lugnet.robotics)
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| | | | | | RE: Seeking Strategies on Humanoid Robots/Walkers —Andrew Phelps
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| | | | (...) Maya is a high end 3D animation application made by a company named Alias|Wavefront which is a subsidiary of Silicon Graphics. -- And the reason we are getting excited about this with the robotic legos is that Maya generates (or can be told to (...) (25 years ago, 1-Jan-99, to lugnet.robotics)
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| | | | | | Re: Seeking Strategies on Humanoid Robots/Walkers —Ben Laurie
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| | | | (...) This sounds very cool - but ... how will you stop it from falling over? Cheers, Ben. (25 years ago, 1-Jan-99, to lugnet.robotics)
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| | | | | | RE: Seeking Strategies on Humanoid Robots/Walkers —Andrew Phelps
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| | | | Well, that is the million dollar question, so to speak :) There really is no predetermined requirement that says the figure HAS to be humanoid, so I suppose a four or six legged creature (or even a creature with no legs) would work just as well, and (...) (25 years ago, 2-Jan-99, to lugnet.robotics)
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| | | | | | Re: Seeking Strategies on Humanoid Robots/Walkers —Joe Greene
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| | | | | My untested theory for the balance issue involves a Lego Gyroscope to maintain the balance. I have yet to complete the design of the Gyro, but I will.. If the Gyro were small and light, you would need a high rate of speed (20k+RPM?) to maintain the (...) (25 years ago, 4-Jan-99, to lugnet.robotics)
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| | | | | | Re: Seeking Strategies on Humanoid Robots/Walkers —Jasper Janssen
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| | | | (...) I seem to recall that noone has succesfully solved the problem of artificial biped locomotion even in traditional robotics, let alone within the constraints of LEGO. Basically, what you need is a system that can sense very delicate shifts in (...) (25 years ago, 19-Jan-99, to lugnet.robotics)
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| | | | | | Re: Seeking Strategies on Humanoid Robots/Walkers —Patrick Gili
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| | | | Jasper Janssen wrote in message <36a3ca48.45364286@l...et.com>... (...) This problem has been solved with both fuzzy logic and neural network control systems. I believe that a traditional control system approach to this problem has yielded poor (...) (25 years ago, 21-Jan-99, to lugnet.robotics)
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| | | | | | Re: Seeking Strategies on Humanoid Robots/Walkers —Israel Alanis
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| | | | Patrick Gili wrote in message ... (...) Actually, they can be built with *relatively* simple, active-feedback systems for the balance and control. Simple legged robots (one leg is actually easier than two to control) have been around since ~1980. (...) (25 years ago, 21-Jan-99, to lugnet.robotics)
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