Subject:
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Re: The Clague - Sophie Project
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Newsgroups:
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lugnet.technic
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Date:
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Mon, 12 Apr 2004 16:33:04 GMT
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Viewed:
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5502 times
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In lugnet.technic, Kevin L. Clague wrote:
> In lugnet.technic, Kyle McDonald wrote:
> > How about 0 legs... A snake?
> >
> > -Kyle
>
> Hi Kyle,
> Good to see you de-lurking :^)
>
> I've always got more ideas for locomotion than I have time to implement.
>
> I wondered if making a two dimensional inchworm
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> http://www.kclague.net/Inchworm/index.htm
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> would travel like a sidewinder rattlesnake.
>
> Kevin
I have a plan in mind for a sidewinding snake. It would be composed of 32
similar segments, each connected to the next by a pivot with two opposing
cylinders driving it. The idea is that there is a main extended flip-flop of 8
variables, where each variable of the flip-flop controls every eighth segment,
so that four segments do the same thing. The pivots move by +/- 45 degrees
relative to the next segment.
The snake begins in an M shape, with 'feet' on the underside of the five
straight segments in one direction only being on the ground, the other feet
being retracted. Feet are only extended when the segment is in the correct
orientation and are retracted at other times. They may be driven by small
cylinders and don't need to be monitored by switches.
It is possible that the opposing cylinder sets will be composed of four
cylinders - two set of two cylinders in series, such that when one pair are
extended and the other retracted, the two segments will line up straight,
However, this would need 128 cylinders and may extend the flip-flop to 16
variables, requiring 16 lots of several switches!
Once the snake will sidewind, the next challenge is to get its head to keep
pointing the same way all the time. I think a car tyre air compressor (set to
25-30psi) is a prerequisite!
This'll keep Kevin busy for weeks! :-)
Mark
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Message has 1 Reply:
 | | Re: The Clague - Sophie Project
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| (...) I was presuming that I'd have 6-8 segments, where each segment (except the last) has two pistons, and four switches (at least). Given how large inchworm is, getting any larger would make it difficult to transport. Inchworm took me about four (...) (20 years ago, 12-Apr-04, to lugnet.technic)
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Message is in Reply To:
| | Re: The Clague - Sophie Project
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| (...) Hi Kyle, Good to see you de-lurking :^) I've always got more ideas for locomotion than I have time to implement. I wondered if making a two dimensional inchworm (URL) travel like a sidewinder rattlesnake. Kevin (20 years ago, 12-Apr-04, to lugnet.technic)
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