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As a head referee for 3 of these contests this year, and many in the past, I have to second Jeff's recommendation to volunteer for these. You can find them on www.legoleague.org . Better yet, form a team and be a coach for next year. Believe me, (...) (23 years ago, 22-Nov-02, to lugnet.robotics)
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| | Re: Motor speed
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(...) Short answer: Suck it up. Long answer: (URL) Steve Baker ---...--- HomeEmail: <sjbaker1@airmail.net> WorkEmail: <sjbaker@link.com> HomePage : (URL) : (4 URLs) (23 years ago, 22-Nov-02, to lugnet.robotics)
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| | Re: which kit 1.5, or 2.0
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(...) Oops! Forgot the second half of your question. There are three RCX varients: RIS 2.0 -- Has a USB-port interface to the IR tower that lets you download programs to the RCX computer. RIS 1.5 -- Same deal - but the IR tower is interfaced via the (...) (23 years ago, 22-Nov-02, to lugnet.robotics)
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| | Re: Newbie has an idea - Nascar style racing?
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(...) Kinkos will do black and white, 3ft by however long, for relatively cheap. Color is expensive, but b&w isn't. (23 years ago, 22-Nov-02, to lugnet.robotics)
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| | Re: additions to RIS
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What can you do with the fiber-optic set? ----- Original Message ----- From: "Benjamin Medinets" <bmedinets@excite.com> To: <lego-robotics@crynwr.com> Sent: Friday, November 22, 2002 11:55 AM Subject: Re: additions to RIS (...) The parts selection (...) (23 years ago, 22-Nov-02, to lugnet.robotics)
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| | Re: Newbie has an idea - Nascar style racing?
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(...) why? Is line following bad? It will be IMPOSSIBLE to build an autonomus NASCAR style car from Mindstorms. You just can't get enough information about the track & your position into the RCX. (...) With the gray-scale scheme Gus suggested, a (...) (23 years ago, 22-Nov-02, to lugnet.robotics)
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| | Re: additions to RIS
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(...) The parts selection isn't that good in the expansion packs. The Extreme Creatures pack has the fiber-optic set which might be useful to some tech-heads. The Robo Sports has some "cute" plastic sports accessories, but hardly anything useful, (...) (23 years ago, 22-Nov-02, to lugnet.robotics)
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| | First LEGO League competition in Cincinnati Ohio
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I just got back from the First LEGO League competition in Cincinnati Ohio. I got a sweet volunteer job there. I got to be the helper for one half of the practice table. The table is divided in half and each team gets one half. I got to time them (5 (...) (23 years ago, 22-Nov-02, to lugnet.robotics)
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| | Re: Newbie has an idea - Nascar style racing?
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Now that's a well cool idea! We could set up 'formulas' based on the parts usable by the cars and the programming allowed, something like Formula 3 - standard RIS kit only, regular/NQC RCX code Formula 2 - standard RIS kit only, any (BrickOS, QC, (...) (23 years ago, 22-Nov-02, to lugnet.robotics)
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| | Re: Newbie has an idea - Nascar style racing?
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I have given this a fair amount of thought that is not reflected in the sample track. For example, the track should have shoulders on both sides of the gray scale that are opposite to the color on the respective sides of the gray scale. In other (...) (23 years ago, 22-Nov-02, to lugnet.robotics)
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| | Re: Newbie has an idea - Nascar style racing?
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I've considered that concept, but I wanted to avoid a variation of line following. In real racing, drivers go full throttle until a specific braking point. the faster riders generally brake later without screwing up the corner By defining the (...) (23 years ago, 22-Nov-02, to lugnet.robotics)
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| | Re: Motor speed
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(...) may "drift" slowly. But you can block it with the clutch gear, then it needs real some motor force to turn. Jürgen (23 years ago, 22-Nov-02, to lugnet.robotics)
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| | Re: Newbie has an idea - Nascar style racing?
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Here's an interesting idea from Gus Jansson for that type of track: (URL) allows you to maintain a smooth line around the course, but not all 'cars' have to follow the same line. You have to be carefull not to get to close to the inside, or (unless (...) (23 years ago, 22-Nov-02, to lugnet.robotics)
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| | Re: which kit 1.5, or 2.0
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The sets are fairly similar in terms of pieces and hardware. The major difference is the RIS 2.0 software, which, if you are planning to use the Linux tools, doesn't really matter to you. I say go 1.5 you can find great deals on them currently. Hope (...) (23 years ago, 22-Nov-02, to lugnet.robotics)
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| | Re: Motor speed
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(...) I think in RCX you get 100 levels. We use JCX which gives us 255 levels. Either one should be plenty. Bruce ------- WWW.SYSTRONIX.COM ---...--- Real embedded Java and much more High speed 8051 systems +1-801-534-1017 Salt Lake City, USA (23 years ago, 22-Nov-02, to lugnet.robotics)
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| | Re: Motor speed
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(...) Trying to adjust the power settings probably won't work - not only do the motors vary slightly, but also their performance varies with the battery life. But with Mindstorms there are usually several different ways of overcoming any particular (...) (23 years ago, 22-Nov-02, to lugnet.robotics)
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| | Re: Newbie has an idea - Nascar style racing?
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One idea that I always wanted to persue was autonomus car racing, nascar style. I thought of setting up a small oval on a 4x8 sheet of plywood and marking the entrance to the corners in one shade, inside boundries(3' from the wall) in a second shade (...) (23 years ago, 22-Nov-02, to lugnet.robotics)
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| | Re: articulation points?
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"Steve Baker" <lego-robotics@crynwr.com> skrev i meddelandet news:3DDC4185.404050...ail.net... (...) Agreed. (...) Not agreed. In mathematics (and statistics is just a part of math), you are not limited to 3D space, and higher spaces need more (...) (23 years ago, 21-Nov-02, to lugnet.robotics)
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| | Re: Motor speed
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(...) I figgered that was the case. <sigh> (...) At the moment, it doesn't interfere with anything, as I am just starting to build things and am just now building the roverbot and going through the various "challenges". I'll keep those in mind (...) (23 years ago, 22-Nov-02, to lugnet.robotics)
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| | Re: Motor speed
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Quoting Brass Tilde <brasstilde@insightbb.com>: (...) Yes. If you are using multiple motors to drive a small robot one way to compensate is with rotation sensors, or use a single motor and a differential to get the robot to drive straight. Or maybe (...) (23 years ago, 22-Nov-02, to lugnet.robotics)
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