Subject:
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RE: Jumping 'bots?
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 18 Nov 1999 19:14:16 GMT
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Original-From:
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Jim Thomas <jim.thomas@trw.comSPAMCAKE>
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Viewed:
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586 times
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I remember that jumping robot but I think that it was more than 10 years
ago... I'm pretty sure I was in High School at the time. If I had to guess
I would say 1984-1985 timeframe (or even older?). Somewhat related I
remember seing a TV program in the 80's that showed a "dog" robot that could
walk/run on four legs. The lower part of the legs were hydrolic pistons.
To move a leg it would retract the piston and then swing it into position.
It kindof bounced along as it ran (like Pepe LePeu). It was really cool.
The computer was not on board, it had an umbilical cord.
JT
> -----Original Message-----
> From: Graham Stalker-Wilde [mailto:grahams@pipeline.com]
> Sent: Thursday, November 18, 1999 9:47 AM
> To: lego-robotics@crynwr.com
> Subject: Re: Jumping 'bots?
>
>
> In lugnet.robotics, lego-robotics@crynwr.com (Christian
> Jacobsen) writes:
>
> > I have seen treaded robots, wheeled robots, walking robots, • and even flying
> > and bungee jumping RCX's...
> >
> > ...but I have not seen any "jumping" robots. I am thinking • about something
> > with a frog-like action.
>
> I remember a Scientific American article from a decade or so
> back on walking
> bots. (I'm now getting close the point where I'll be reading
> the "25 Years
> Ago" articles for the second time, looking forward to that.)
> As I remember
> they discussed hexapod motion at length, it being relatively
> easy since you
> can always have a stable tripod, and more or less skipped
> quadrapedal and
> bipedal motion, going straight to unipods.
>
> The unipods were basically pogo sticks - the claim was that
> once you give up
> the stable tripod it's all about balance anyway, so unipods
> are easier to get
> working.
>
> The bots moved by tilting forward, so the leg was behind
> them, then jumping,
> swinging the leg forward mid-air, landing and rebalancing.
>
> I haven't tried this yet (my creations tend to disintegrate
> when looked at
> roughly), and the balancing may be beyond the RCX's
> capabilities, but it's an
> idea. Even if it needed trainer legs to rest on between
> jumps, it'd still be
> pretty cool.
>
> -g
>
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Message has 1 Reply:
 | | Re: Jumping 'bots?
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| (...) The Scientific American Unipod also had an off-board pewter. How about the related, simpler, problem of a balancing robot? It has one leg which is not stable by itself (rounded base, say). It has to balance on its leg, and recover from small (...) (25 years ago, 18-Nov-99, to lugnet.robotics)
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