Subject:
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Trilobite
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Newsgroups:
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lugnet.robotics
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Date:
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Sun, 17 Feb 2002 04:22:16 GMT
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Original-From:
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ELIJAH@spamlessTDS.NET
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Viewed:
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552 times
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I really wanted the steerable shrimp to work out, it is so
aesthetically pleasing as a design that it just seemed to the be
Right Thing(tm). However, it required a LOT of motors, sensors etc.
and if I geared it to climb it would only crawl along the rest of the
time. In addition, it seems to me that whenever you put wheels at the
end of pylons there is too much lateral force in turning for lego to
handle very well (keeping a reasonable weight).
After the Shrimp I tried a mars sojourner thing, but it had the same
basic problems. So I decided to stop assuming I needed ground
clearance and start addressing my basic requirements."Climb when
needed, zip along when possible". the result is the Trilobite:
http://personalpages.tds.net/~elijah/trilobite.html
I am pretty happy with its abilities so far, however the sensor
bumpers need to be redone.
Incidentally, in the area of rechargable batteries I recently came
across this:
http://www.imaging-resource.com/ACCS/BATTS/BATTS.HTM
Even though this is an independent review I suppose since a Rayovac
battery comes out on top appropriate disclosure requires I say that I
also have recently become employed by Rayovac (as a programmer and I
haven't even been to battery class yet so any battery knowledge I
have is solely by way of supplying my son's toys). (and no, I can't
get you a free case of 1600s :o) *I* can't even get a free case of
1600s)
Elijah
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Message has 2 Replies:
 | | Re: Trilobite
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| Nice design. I may have to build a variation and test it out. I also have been unhappy with my attempts at a SHRIMP. A question on trilonite: How is its lateral stability if it hits a wall at an angle or any irregular mountain? (...) (22 years ago, 20-Feb-02, to lugnet.robotics)
| | | Re: Trilobite
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| (...) Nice job on the trilobite! About the batteries: I think your review reference is to NiMH type. I use that kind in my digital camera (do you sense a 'but' coming?) BUT, I use rechargeable mangnese alkaline batteries in my RCX. Available current (...) (22 years ago, 20-Feb-02, to lugnet.robotics)
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