 | | re: start_process problem
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My suggestion is to double check that you double check the simple things withing the code (your code should be executing an infinite loop) while(1) { code .... } If the code is more complex and involves external assembly modules, check that they (...) (26 years ago, 15-Oct-99, to lugnet.robotics.handyboard)
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| | Re: Start_process problem
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alex, each of your processes must be an indefinite loop. otherwise starting them up via start_process just runs through once. so, e.g.: void checkir() { while (1) { if (digital(4)) { /* go backward for some time */ /* turn a little */ /* go forward (...) (26 years ago, 15-Oct-99, to lugnet.robotics.handyboard)
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| | stuff
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Hi everybody... I was wondering if anybody has investigated attaching more powerful motors to the RCX. Can anybody tell me (before I bother finding out myself) how to rig up a more powerful motor by getting the RCX output to control some sort of (...) (26 years ago, 15-Oct-99, to lugnet.robotics)
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| | Mindstorms on Macs! MacDaily plans review(?)
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Hi Folks, I was browsing Mac Gamers hoping to find info on the new mactell voodoo3 cards and instead discovered this... (URL) appears the next week ( Tuesday) they plan on covering Mindstorms on Macs troubleshooting. I thought someone here might (...) (26 years ago, 15-Oct-99, to lugnet.robotics.events)
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| | Powered Crossaxles Through a Large Technic Turntable
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In tinkering with my new robot thingy, I've come up with a design someone might find useful. I realize that it may be a bit on the obvious side to many of you advanced LEGO roboticists; however, I've seen a few people requesting more basic (...) (26 years ago, 15-Oct-99, to lugnet.robotics)
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| | RE: Powered Crossaxles Through a Large Technic Turntable
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(...) (URL) is cool. I just wanted to mention that MLCad is a really decent program. I hope Michael will develop it further for the Mac, but then again, have a look at Dave baum's site for info on his graphics for his new book: (URL) One tip, you (...) (26 years ago, 15-Oct-99, to lugnet.robotics)
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| | Re: Flex Cables (Does anyone have the 8485 CCII)
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Can someone post a side by side comparison of Type I and II connectors?? I have the 5118, 8485, 8412, 8437, and they all have the same connector ends. I'm trying to figure out the difference. Phil: I'll try to get you the mm dimensions for the (...) (26 years ago, 15-Oct-99, to lugnet.robotics)
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| | Re: Help me plan for Mindfest.
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Welcome to Boston!!! (...) The easiest (and cheapest) way in my opinion is to take the Subway (We call it the "T" ). It is very safe and easy to use as long as you don't have a problem or fear of Subway's (Some, like my father do so I just thought (...) (26 years ago, 15-Oct-99, to lugnet.loc.us.ma.bos, lugnet.robotics, lugnet.robotics.events, lugnet.org.us)
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| | Re: Flex Cables (Does anyone have the 8485 CCII)
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Thanks Rob, The type I and II connectors can be seen at: (URL) flex cables are also shown with the "pssible" lengths for the 8485. When I scaled the cable on page 110, I came up with 17.2cm (and it came-up short when I built that assembly), but the (...) (26 years ago, 15-Oct-99, to lugnet.robotics)
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| | More powerful motor (was: stuff)
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Maybe the RCX could be rigged up to control a speed controller from an RC car. (...) Joel Shafer joel@connect.net (26 years ago, 15-Oct-99, to lugnet.robotics)
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| | Re: Help me plan for Mindfest.
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Michael: If you're going to be traveling around Boston by "T," you'll want to get a day pass. (A one-day, unlimited use pass is $5.50--a very good deal. 3-day passes are also available.) You can grab these usually at any subway station, although (...) (26 years ago, 15-Oct-99, to lugnet.robotics)
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| | A java tool for real-time talking with people reading the same webpage.
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Hi, There is a java software called Wander at (URL) simply dragging and dropping a URL address or a Link to Wander window, you can see and talk to all the people who reading the same webpage right now. It is a good tool for on-line talking, (...) (26 years ago, 15-Oct-99, to lugnet.robotics.handyboard)
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| | Re: Help me plan for Mindfest.
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(...) I have my doubts; tokens are cheap. You have to take seven rides/day for that to make sense. And that's a lot of riding on the T. (26 years ago, 15-Oct-99, to lugnet.robotics)
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| | Re: Help me plan for Mindfest.
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I should have written, "... a pretty good deal." The pass is not advantageous if one is just going to one place and returning from it once in a day. However, Michael wrote: "Things don't start at MindFest until 4pm Friday night, so I plan to tour (...) (26 years ago, 15-Oct-99, to lugnet.robotics)
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| | Re: More powerful motor (was: stuff)
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You need to be careful if you use more powerfull motors with lego construction. The plastic parts are very strong but you can easyly break teeth off of the gears or twist the rods with the current motors and a little bit of gearing. On the other (...) (26 years ago, 15-Oct-99, to lugnet.robotics)
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| | RE: Help me plan for Mindfest.
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<snipped Eric's description of how to get around> Eric, this kind of information is great! I'm going to be at Mindfest and my NLSO architect will be lollygagging around the downtown Boston area. Now it looks like I'll have all the info we need to do (...) (26 years ago, 15-Oct-99, to lugnet.loc.us.ma.bos, lugnet.robotics, lugnet.robotics.events, lugnet.org.us)
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| | Help me, too.
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Hi, I'm going to Mindfest. But I need help about transportation in Boston. Airport Longan to Amerisuites Hotel in Medford (116 Riverside Ave) Hotel to Tufts University Hotel to MIT Thanks a lot of and see you in Mindfest, Hazel Diaz San Jose, Costa (...) (26 years ago, 15-Oct-99, to lugnet.robotics)
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| | More powerful motors
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I am curious to know why you think you would need to amplify the RCX motor outputs? The Lego motors are very efficient under no load. But the bridge drivers in the RCX seem to cope with the stalled state (about 250mA). Unless you are going to use (...) (26 years ago, 15-Oct-99, to lugnet.robotics)
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| | Re: More powerful motors
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I would like to see an RCX control a really fast RC car. It would be cool to see it pilot it flawlessly around a circle track. (...) Joel Shafer joel@connect.net (26 years ago, 15-Oct-99, to lugnet.robotics)
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| | RE: Help me plan for Mindfest.
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Wait... For those of us staying at the Marriot, ther should be a free shuttle from the airport, right? I'll check up on this and let you know... Cheers, Ralph Hempel - P.Eng ---...--- The train stops at the train station, The bus stops at the bus (...) (26 years ago, 15-Oct-99, to lugnet.loc.us.ma.bos, lugnet.robotics, lugnet.robotics.events, lugnet.org.us)
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