 | | RE: Newbie has an idea - Nascar style racing?
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Here is a drawing of what I was thinking of: (URL) the layout on paper would be expensive for a home user that does not refill their own cartridges. Paper won't stay down unless taped, and it could be torn easily with a brick corner during a crash. (...) (22 years ago, 25-Nov-02, to lugnet.robotics)
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| | Re: Newbie has an idea - Nascar style racing?
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(...) ensure the red, green and blue would look like different shades to the Lego light sensor. I think this would be easier to achieve (and therefore more reproducible) with shades of grey. Not that it matters much, calibration wouldn't be that (...) (22 years ago, 25-Nov-02, to lugnet.robotics)
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| | Re: Newbie has an idea - Nascar style racing?
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(...) > stay down unless taped, and it could be torn easily with a brick corner during a crash. I guess so - but it's easily repaired and highly reproducible. (...) > and paint are cheap and universally available. They are pretty easy to line up (...) (22 years ago, 25-Nov-02, to lugnet.robotics)
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| | Re: Newbie has an idea - Nascar style racing?
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(...) This makes robots have to depend much more on dead-reckoning. If you are steering (say) 10% too much - then that error will build up without limit. You'd come out of a 90 degree turn with a 9 degree error - but unless you have two light (...) (22 years ago, 26-Nov-02, to lugnet.robotics)
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| | Re: Newbie has an idea - Nascar style racing?
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(...) does not refill their own cartridges. Paper won't (...) Partially why it is expensive. The fact that it is easily damaged makes maintennance that much more expensive. Not to mention constant replacing of paper track would eat up valuable event (...) (22 years ago, 26-Nov-02, to lugnet.robotics)
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| | Re: Newbie has an idea - Nascar style racing?
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Hi Steve, (...) not refill their own cartridges. (...) brick corner during a crash. Here in Italy, Mario Ferrari printed a beautiful (but very expensive) track that we regularly use for our Gran-PRIS competitions. It's 200x250 cm wide with borders (...) (22 years ago, 26-Nov-02, to lugnet.robotics)
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| | Re: Newbie has an idea - Nascar style racing?
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(...) First Lego League uses a plastic mat made by 3M for their competitions. Every team gets one to practice with when they register. I don't know how expensive it is since 3M donates it to FLL, but it does have several redeeming qualities for this (...) (22 years ago, 27-Nov-02, to lugnet.robotics)
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| | Re: Newbie has an idea - Nascar style racing?
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(...) The FLL mats have a different material on the back, and I doubt you could actually print on the front. That type of mat would be great for this, but I'll bet it's expensive. Steve (22 years ago, 27-Nov-02, to lugnet.robotics)
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| | Re: Newbie has an idea - Nascar style racing?
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(...) Acroname has a line following mat, which I believe is made of the same material. It costs $65. (US) I didn't see the dimensions. (URL) (22 years ago, 27-Nov-02, to lugnet.robotics)
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| | Re: Newbie has an idea - Nascar style racing?
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(...) of the 4'x8' table I already have. I'm thinking this would be a great off-season (off the First Lego League season) activity for my FLL team and perhaps other nearby. I've sent an email to someone at FIRST to see if they have a contact at 3M (...) (22 years ago, 27-Nov-02, to lugnet.robotics)
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| | Re: Newbie has an idea - Nascar style racing?
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(...) Yes, I think our team would enjoy that, also. And I would like to use the same table. Please tell me what you find out Steve (22 years ago, 27-Nov-02, to lugnet.robotics)
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| | Re: Newbie has an idea - Nascar style racing?
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(...) No good news. Scott Evans of US FIRST wrote that 3M only prepares this material for FLL and is not prepared to deal with individual requests. He suggested that spliced 36" printouts from a large format printer work well for him during testing. (...) (22 years ago, 2-Dec-02, to lugnet.robotics)
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