Subject:
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Re: SSClagorpion
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Newsgroups:
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lugnet.technic
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Date:
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Tue, 4 May 2004 21:23:45 GMT
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Viewed:
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11999 times
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In lugnet.technic, Kevin L. Clague wrote:
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> Nope. SSClagorpion does not walk using a simple pneumatic motor configuration.
I just came up with an idea for how to make the legs work. It should make it so
the pneumatic cylinder doesn't have to support the weight of the creature.
The idea is to have the legs "lock" into place, when they are down.
Think about the legs for a folding table. They lock into place, so they can not
fold back. It wouldn't take much pneumatic pressure to keep them locked.
Given that the body will not bounce as it walks, then, when the legs are down,
the body is supported by all eight legs. At that point, four legs are locked,
and the other four are unlocked, moved, and locked again. {repeat with other
set}
So, the cylinder only has to flip the switch(s), hold the leg locked in place,
and lift the weight of the leg when it's unlocked, but it won't have to support
any weight from the body.
With this configuration, it shouldn't matter how heavy SSClagorpion is, or how
long the legs are, because the cylinder is only moving the leg. And, this
method wouldn't work, if it weren't for Kevin's 242 design.
I plan to make some kind of model tonight to show what I'm talking about.
Can anyone tell me if/why that won't work?
Steve
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Message has 4 Replies:
 | | Re: SSClagorpion
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| (...) Now, I have a question about the "logic" behind walking sideways. When SSClagorpion is done walking sideways, and it starts walking forward, will the legs all be in the same position in/out, or will 1/2 be in, while 1/2 are out? Assuming the (...) (21 years ago, 4-May-04, to lugnet.technic)
| | | Re: SSClagorpion
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| (...) I like this idea a lot. It sounds very good to me. (...) I agree. Very cool. (...) Assymetry in the leg length might make some legs hold more weight than others, making it harder to lock. (...) Kevin (21 years ago, 4-May-04, to lugnet.technic)
| | | Re: SSClagorpion
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| Hey wow, I see it now. When I sit down to build, I'll work with this in mind. Good one. e (21 years ago, 4-May-04, to lugnet.technic)
| | | Re: SSClagorpion
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| (...) This eliminates the concerns about piston leverage for putting the feet down and keeping them weight bearing. This allows us to have the legs be longer, more like a real scorpion, but this brings us to the next leverage problem: (...) (21 years ago, 5-May-04, to lugnet.technic)
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Message is in Reply To:
| | Re: SSClagorpion
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| (...) I do in my "Mindstorms Masterpieces" book, but I don't have any on-line. It is similar, except that the pivot point of the old switch is lower. (...) Nope. SSClagorpion does not walk using a simple pneumatic motor configuration. (...) Kevin (21 years ago, 3-May-04, to lugnet.technic)
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