 | | Indy 5.00 @ Brickworld
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Usually, in May we run our Indy 5.00 event, but this year we're going to push the date back a few weeks, and run it AFTER the "real" Indy 500. This year, Indy 5.00 is going to be one of the Mindstorms Challenges at Brickworld ((URL) final rules will (...) (17 years ago, 2-Apr-07, to lugnet.org.us.laflrc)
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| | Robot Competitions
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Last weekend, we took a few robots over to the Central Illinois Robotic Club's annual Bot Brawl. We had a bunch of fun and some pretty good results. But, as usual, they are trying to figure out how to change the rules so this doesn't happen again... (...) (17 years ago, 12-Mar-07, to lugnet.org.us.laflrc)
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| | Re: Rock Crawling
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(...) Hi My son wanted an "real RC car" so I took the RC buggy body and made a few changes to have a final result. It is a 4x4 truck driven with 2 RC motors, and I adapted the RC steering mechanism for the front drive. It's very large, and quite (...) (17 years ago, 21-Feb-07, to lugnet.org.us.laflrc)
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| | Re: RCX controlled GBC train drawbridge
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(...) One down side here, is that the "ball-lift" must be shut-off when the bridge is raised, and the controller for the ball lift is on the "bridge" (other) side of the opening. But, along those lines, if there is a bin to catch lose balls, the (...) (17 years ago, 7-Feb-07, to lugnet.robotics, lugnet.org.us.laflrc)
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| | Re: RCX controlled GBC train drawbridge
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(...) Heres a thought. Just have the slope going in the other direction. That way when it lifts, the balls keep rolling the same direction. (Faster and efficient!) If the raising is too bumpy, just find a way to place a third or fourth overhead rail (...) (17 years ago, 7-Feb-07, to lugnet.robotics, lugnet.org.us.laflrc)
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| | Re: RCX controlled GBC train drawbridge
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(...) Not long at all. With the 3'+ slopping double-beam track I had at BF '06, I think it only took less than five seconds for them to clear the end... and that was for a *very* shallow slope. Given the time it takes to lift and lower the bridge, (...) (17 years ago, 7-Feb-07, to lugnet.robotics, lugnet.org.us.laflrc)
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| | Re: RCX controlled GBC train drawbridge
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(...) I am 100% thinking along the same line. At first I thought of simply stopping the ball lift and immediately raising the bridge, letting balls along the slope drain backward into a hopper, but after watching the bridge raise and lower, I doubt (...) (17 years ago, 6-Feb-07, to lugnet.robotics, lugnet.org.us.laflrc)
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| | Re: RCX controlled GBC train drawbridge
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On the other hand, why would the bridge need to carry balls at all? Just put the bridge on the section of track that separates the reliable modules from the unreliable modules' loop. But I suppose if the bridge does nothing at all with balls (not (...) (17 years ago, 5-Feb-07, to lugnet.robotics, lugnet.org.us.laflrc)
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| | Re: RCX controlled GBC train drawbridge
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(...) Ah, OK. No problem then, I was just worrying for a moment that you'd have to further modify the whole thing. (...) Cool. I have an additional 7.73 kg of AA's if we need them :-) (...) Not sure what you mean here. I was just picturing a (...) (17 years ago, 5-Feb-07, to lugnet.robotics, lugnet.org.us.laflrc)
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| | Re: RCX controlled GBC train drawbridge
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(...) You'd need a hopper to store balls that arrive while the bridge is raised. You could probably rig a gate/door onto it that is open when the bridge is down and closed when the bridge is up. Or the entire hopper could tilt backwards with the (...) (17 years ago, 5-Feb-07, to lugnet.robotics, lugnet.org.us.laflrc)
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| | FLL at Science Central
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This weekend, I was working on a FLL robot for the Science Central event in a couple weeks. That went well. It's not 100% reliable, because it's hard telling how many atoms are coming off the table, and sometimes the stain-resistant fabric just (...) (17 years ago, 5-Feb-07, to lugnet.org.us.laflrc)
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| | Re: RCX controlled GBC train drawbridge
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(...) Not yet... No train. In fact, all the train track is borrowed from Steve H and Steve's Mom. I've got track on order, but nothing else. Someday maybe I'll buy a train ;) (...) Actually factored that in. At the bottom it is 10-wide, but the top (...) (17 years ago, 5-Feb-07, to lugnet.robotics, lugnet.org.us.laflrc)
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| | Re: RCX controlled GBC train drawbridge
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(...) Very slick-looking John. It seems odd that one of the neatest attractions in the GBC may be only tangentially related to soccer balls, but that is a very nice design. I especially like the electrical cutouts at both ends. I have to ask, have (...) (17 years ago, 4-Feb-07, to lugnet.robotics, lugnet.org.us.laflrc)
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| | RCX controlled GBC train drawbridge
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I suppose this doesn't have to really be for the GBC only, but that was why I decided to build it. I've been playing with this idea since Brickfest '06 when Steve Hassenplug suggested a way to go in & out of the GBC area without crawling under the (...) (17 years ago, 3-Feb-07, to lugnet.robotics, lugnet.org.us.laflrc)
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| | Re: RC Rock Crawling
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(...) Wow, those guys went all out, they even "towed" one truck with another. Pretty nice. At some times it was hard to tell those were RC and not real trucks. Speaking of this, when is our next get together? Since I missed the last one, I need to (...) (17 years ago, 2-Feb-07, to lugnet.org.us.laflrc)
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| | RC Rock Crawling
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Here's a good example of what we want to do... (URL) (17 years ago, 1-Feb-07, to lugnet.org.us.laflrc)
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| | Re: Unit LNE of the dinochrome brigade (Was: Rock Crawling)
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(...) camera angle and lots of action! I liked it! (17 years ago, 29-Jan-07, to lugnet.org.us.laflrc, lugnet.robotics, lugnet.technic)
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| | Re: Unit LNE of the dinochrome brigade (Was: Rock Crawling)
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The second set of arms on Mike's robot gives it better mobility. They make its overall tread length much longer, so it can treat stairs like a ramp instead of, well, stairs, and that makes it faster at climbing them. The arms also let it raise the (...) (17 years ago, 29-Jan-07, to lugnet.org.us.laflrc, lugnet.robotics, lugnet.technic)
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| | Re: Unit LNE of the dinochrome brigade (Was: Rock Crawling)
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(...) Ha! Methinks you underestimate the talents (not to mention obsession) of the other folks in this event <grin>. Seriously, thanks for the kind words, and I'm very happy with it, but now the rest of you know yet another way to try to do it. Go (...) (17 years ago, 29-Jan-07, to lugnet.org.us.laflrc, lugnet.robotics, lugnet.technic)
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| | Re: Unit LNE of the dinochrome brigade (Was: Rock Crawling)
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(...) well, in all honesty I shamelessly implemented a solution I had already known about: PackBot by iRobot. I won't remotely claim the idea originated with me, as it didn't. I was inspired by the "real world" here. That said, I'd not run across (...) (17 years ago, 29-Jan-07, to lugnet.org.us.laflrc, lugnet.robotics, lugnet.technic)
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