 | | RCX 1.0 without external power jack?
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I bought a RCX 1.0 used on Bricklink to get an RCX with an external jack. The one that arrived is marked 1.0 but has no external jack. I thought all 1.0 units had the jack. Anyone else run in to this? Mike (22 years ago, 20-Dec-03, to lugnet.robotics)
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| | Re: I was thinking about bipedal walkers this morning and....
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(...) It doesn't work (yet), but it's very close... (URL) K (22 years ago, 19-Dec-03, to lugnet.technic, lugnet.robotics)
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| | Re: I was thinking about bipedal walkers this morning and....
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I did, did no one read it? (...) (22 years ago, 19-Dec-03, to lugnet.robotics)
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| | RE: I was thinking about bipedal walkers this morning and....
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Tinkertoys is close. This site also has the plans: (URL) -----Original Message----- (...) (22 years ago, 19-Dec-03, to lugnet.robotics)
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| | Re: I was thinking about bipedal walkers this morning and....
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(...) I have almost nothing to contribute to discussions re: robotics, but I spotted this marginally relevant story on cnn.com: (URL) of course. Dave! (22 years ago, 19-Dec-03, to lugnet.technic, lugnet.robotics)
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| | Re: I was thinking about bipedal walkers this morning and....
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Lots of responses to my post, so I'm following up my own post to address all of them. A lot of people are pointing out that this has been done before in the field of robotics, but what I was actually asking about is if it's been done before in (...) (22 years ago, 19-Dec-03, to lugnet.technic, lugnet.robotics)
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| | Re: I was thinking about bipedal walkers this morning and....
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I think you need to get some shifting of weight over the hips involved so that you don't fall to the side. it's complex. do a google search - i'll bet there is lots of online material available.... good luck (...) (22 years ago, 18-Dec-03, to lugnet.robotics)
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| | Re: I was thinking about bipedal walkers this morning and....
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(...) Parallax markets the Toddler, which is a walking Robot that shifts its center of gravity to walk. It turns by sliding its feet in opposite directions. It has 34 possible movements. (22 years ago, 19-Dec-03, to lugnet.technic, lugnet.robotics)
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| | Re: I was thinking about bipedal walkers this morning and....
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Now, think about what physically goes into making yourself walk. How much energy and control is involved? Try walking on a flat, level surface (or better, one at a slight decline, like a very long handicap ramp). Walk with your natural gait, at the (...) (22 years ago, 19-Dec-03, to lugnet.technic, lugnet.robotics)
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| | Re: I was thinking about bipedal walkers this morning and....
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(...) More info here (URL) (22 years ago, 18-Dec-03, to lugnet.technic, lugnet.robotics)
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| | Re: I was thinking about bipedal walkers this morning and....
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(...) Dunno but this non-LEGO robot (with knees) has been taught to run (URL) wish there was a video available on the net somewhere - I saw it on TV yesterday, and though it's difficult to tell it's running, it does seem rather more "human-like" (...) (22 years ago, 18-Dec-03, to lugnet.technic, lugnet.robotics)
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| | Re: I was thinking about bipedal walkers this morning and....
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(...) Hi Mark, I have never seen a walker like this. I'd be the last person to say it can't be done. Kevin (...) (22 years ago, 18-Dec-03, to lugnet.technic, lugnet.robotics)
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| | Re: I was thinking about bipedal walkers this morning and....
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(...) Yes, there was a lot of work on this at the MIT robotics lab back in the 70s/80s, with bipedal, quadrupedal, and even unipedal hoppers. To get it to work, you need good orientation and/or acceleration sensors (I believe that the MIT folks used (...) (22 years ago, 18-Dec-03, to lugnet.robotics)
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| | Re: I was thinking about bipedal walkers this morning and....
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Yes, I did a prototype using pneumatics as muscles. It worked semi-well - the thing walked somewhat, although in a very stiff gate. The main problem came from using pneumatics. I couldn't keep the pressure high enough to swing the legs back out (...) (22 years ago, 18-Dec-03, to lugnet.robotics)
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| | Sony Claims First Running Humanoid Robot
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Thought this would be of interest to the group - if you haven't seen it already! (URL) here's the link to the Slashdot discussion: (URL) (22 years ago, 18-Dec-03, to lugnet.robotics)
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| | I was thinking about bipedal walkers this morning and....
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Consider the way we walk... we start by effectively starting to lean slightly forward, and we swing a leg some distance in front of ourselves to stop from falling. We then start to bring the other leg forward as we reupright ourselves and repeat the (...) (22 years ago, 18-Dec-03, to lugnet.technic, lugnet.robotics)
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| | Re: Mindstorms programming HELP wanted
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(...) Oh, believe me, there will be copious amounts of spirits this holiday season...whoo-hoo!! (22 years ago, 17-Dec-03, to lugnet.robotics)
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| | Re: Mindstorms programming HELP wanted
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Hi Jean-Marc, Besides doing a google using something like 'books Lego Mindstorms' to find Mindstorm specific books I can suggest, Programming the Parallel Port 0-87930-512-4 Programming Robot Controllers 0-07-140851-7 Mobile Robots 1-56881-011-3 (...) (22 years ago, 17-Dec-03, to lugnet.robotics)
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| | Re: Mindstorms programming HELP wanted
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Hi Jean-Marc, Brian Bagnall's "Core Lego Mindstorms Programming" would be an excellent place for you to start. Learning how to program is always more fun when you have a specific goal in mind, and this book gets you running without drowning you in (...) (22 years ago, 17-Dec-03, to lugnet.robotics)
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| | Re: Mindstorms programming HELP wanted
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Hi Jean-Marc, (...) ... (...) (URL) Be the holiday spirits with you, Happy Holidays y Felis Navidad! -- -- Open Forge, LLC 24/365 Onsite Support for PCs, Networks, & Game Consoles 512-695-4126 (Austin, Tx.) help@open-forge.com irc.open-forge.com (...) (22 years ago, 17-Dec-03, to lugnet.robotics)
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