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Subject: 
Re: PipeXplorer
Newsgroups: 
lugnet.robotics
Date: 
Wed, 23 Dec 1998 18:49:33 GMT
Original-From: 
Pete Hardie <pete.hardie@dvsg.SPAMLESSsciatl.com>
Viewed: 
1240 times
  
Tom Pierce wrote:

Laurentino Martins [SMTP:lmartins@marktest.pt] wrote:

For a real life test I was thinking in making it climb my • chimney... After all it's Christmas, isn't it? *<||:-)
Anybody ever seen a similar project?

Not the same concept, but similar in vertical movement...

I made a 'spider bot' that operated with a pulley system and heavy-weight
fishing line (obviously not a lego-purist's solution). A works-sometimes,
doesn't-work-sometimes method of catapulting a grappling hook (made entirely
of legos, of course), then reeling it in, allowed it to choose locations to
climb.

I'm sure, with more work, I could've made it better, but the main problem
was its weight. It needed its wheels to be touching the surface it was
climbing to successfully scale a wall (the pulley/line itself wasn't enough
for it to suspend itself in air, and was probably seconds away from
stripping the motor). Also, I never addressed problems with detecting
whether the grappling-hook hit true.

Sounds cool.

w/r/t detecting the grapple connecting, wouldn't just firing, then
reeling in
until a) end of line is detected (hook back in its socket) or b) robot
moves
(hook caught on something) work?

--
Pete Hardie                   |   Goalie, DVSG Dart Team
Scientific Atlanta            |
Digital Video Services Group  |



Message is in Reply To:
  RE: PipeXplorer
 
(...) >> For a real life test I was thinking in making it climb my chimney... After all it's Christmas, isn't it? *<||:-) >> Anybody ever seen a similar project? Not the same concept, but similar in vertical movement... I made a 'spider bot' that (...) (26 years ago, 23-Dec-98, to lugnet.robotics)

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