Subject:
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Re: Need to compare
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Newsgroups:
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lugnet.robotics
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Date:
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Sat, 28 Sep 2002 21:08:39 GMT
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Original-From:
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Steve Baker <sjbaker1@airmail.[StopSpammers]net>
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Reply-To:
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SJBAKER1@AIRMAIL.spamlessNET
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Viewed:
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786 times
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Mike Thorn wrote:
> At 02:35 PM 9/28/02, you wrote:
>
> > We have already seen the shrimp and we think to build something like that
> > (maybe also with tri-star wheels)... But if somebody find a better
> > solution,
> > because we don't know the comportement of the shrimp with a little
> > hole on
> > the ground. A whole just large enouh to "keep" a wheel...
>
>
> I like the tri-wheel design. If you make if big enough it shouldn't have
> any trouble. Something like this (or bigger):
> http://mindstorms.lego.com/inventions/invention.asp?ID={18963B1A-0087-241F-2DE2-5BD563820A4A}&slotN=2
A straight tri-wheel like that can't climb anything higher than half it's height though.
If you are really after something that'll climb TALL steps, then it has to have something
high up at the front to grab the top of the step with.
Even a Shrimp has that (in essence) because the front part lifts up until it's riding
on the top of the step.
Similarly, a spider-like robot can lift legs up and onto the top of the step - so
(with care) could climb something almost equal to it's own height.
> > For the step, it begins at 1cm and it will be increased until no
> > véhicule is
> > able to climb this step...
>
>
> The advantage of an ODEX design. Very wide extremes.
>
> I know this is harebrained, but how about some sort of winch system? It
> shoots out a grappling hook and pulls itself forward.
That's gonna depend a lot on what the surface is. If it's wood or tile,
it's not a great solution because there is nothing for the hook to dig into.
I guess it might work on carpet...I think this is a long-shot.
----------------------------- Steve Baker -------------------------------
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Message is in Reply To:
 | | Re: Need to compare
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| (...) I like the tri-wheel design. If you make if big enough it shouldn't have any trouble. Something like this (or bigger): (URL)For the step, it begins at 1cm and it will be increased until no véhicule is (...) The advantage of an ODEX design. (...) (22 years ago, 28-Sep-02, to lugnet.robotics)
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