Subject:
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Re: Point new-guy to resources?
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Newsgroups:
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lugnet.org.us.smart
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Date:
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Tue, 27 Mar 2001 16:47:26 GMT
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Viewed:
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1004 times
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On Tue, 27 Mar 2001, David Schilling wrote:
> Phil also entered
> another very interesting sumo robot this year - one with a ram that comes
> out to push the competitor in the case where they are otherwise locked in a
> stalemate.
Now there's an interesting idea.. but I'm out of sensors. )-:
> One of the
> most interesting challenges in building a robot like this is to figure out
> just how to do the gear shifting, so I'm not going to spoil your chance to
> learn an incredible amount by just telling you.
Aww.. (-: Actually, one of our guys is doing just that. I've had a
couple of ideas, but they're kludgy. Our first match ruleset permits only
peices from a single RIS (plus one motor and one toch sensor), which has
made things very, *very* interesting. The ruleset also permits damaging
the enemy model (though not the bricks) but thus far we've found it very
difficult to create a weapon out of LEGO that does significant damage to
LEGO...
> I'm very interested in seeing what you come up with in your advanced sumo
> competition. While simple enough for beginning robot builders, just pushing
> the other guy is pretty boring.
Quite. Some of our more interesting concepts include:
- Forklift that activates upon detection of enemy to reduce traction
and/or flip opponent
- Passive lift that is actuated by collision with the enemy bot (this is a
primitive attempt at the judo concept, but the motivation was in creating
a lift that didn't require motors or sensors to use..)
- Threat detection radar (turn around! he's behind you!)
- Rubber-band powered battering ram (neat idea, *very* slick mechanism,
but ineffective.)
- A number of search/turn/timeout algorithms
> Of course as I mentioned, there are many other things you could try as well!
> The main thing to remember is to keep your robot as simple as possible; the
> more things you add to it, the more modes of failure it will exhibit.
Yup- we've seen that already. When we were first hashing this out the bot
that was smartest about table navigation always won- to heck with weapon
systems. Once we allowed the third motor, bots with weapons were able to
navigate much better and things have shifted more in their favor.
We've got a web "repository," but it's far from organized into a
site. (couple movies in the "contest" directories, though..) feel free to
poke around:
http://www.spectral-imagination.com/shane/lego/
--
------------------------------------------------------------------------------
Rob Deis "Let the people know beforehand what the law
MiB3347 is and what they are to expect."
rdeis@io.com -- 18th Congress, Rec. 75
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Message is in Reply To:
 | | Re: Point new-guy to resources?
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| (...) Sorry for not answering sooner, I've been out of town. Actually, it was my brother, Phil Schilling who built the gear-shifting robot for the RTL-Toronto sumo event. (I only wrote the program it used.) He won with it last year. He also entered (...) (23 years ago, 27-Mar-01, to lugnet.org.us.smart)
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