Subject:
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Re: SSC: Re: Classic timing circuits and XOR gates (long)
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Newsgroups:
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lugnet.technic
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Date:
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Tue, 9 Aug 2005 22:01:47 GMT
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Viewed:
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3302 times
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In lugnet.technic, Kevin L. Clague wrote:
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In lugnet.technic, Steve Hassenplug wrote:
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On Tue, August 9, 2005 3:10 pm, Kevin L. Clague wrote:
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Here is a picture of SSC1
http://www.brickshelf.com/gallery/kclague/SSClagorpion1/p8040144.jpg
SSClagorpion 1 has eight legs broken into two groups of four.
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I don’t care what Eric says. This is pretty just like it is. :)
(sorry to stray from pneumatics)
It looks like a totally studless design. (some of the beams used are
studded, but could be replaced with studless) Is that correct? I don’t see
any plates, just beams.
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No plates, but the studded beams are chosen for the superior strength they
provide.
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Do all the legs have the same sweep?
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No, and this is a problem. SSClagorpion 2 will have all the legs have the
same sweep, *but* the body will not be rectangular. I’ve been trying to avoid
rectangular, because it doesn’t look very organic.
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you don’t need a rectangular body when you used elbow extention like i did in my
hexapod, the front leg’s contracts whane it’s sweep back and extend when it
sweep’s forward so the front legs can stay where the are, on the front of the
body :) and you can do the same thing whit the back legs
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Do the shocks compress much when it walks?
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Well, it was walking very slowly because the body was stretching and twisting.
This led to the gravity well I was trying to avoid in the first place. To
make leg drop and lift go faster, I added a second set of pistons. Nothing is
for free, so the body twisted more. The front and back legs completely
compressed their shocks, and one end would fall to the ground.....
I replaced the shocks on the end legs with 1x7 straight liftarms. Tis helped
a lot.
I also braced the body up *some* and this helped.
This is at least three times as big as anything I’ve ever created, so there
are a lot of structural support issues. I *hated* static stresses and strains
in college, but now *need* to be good at them... LOL
With the extra weight of the pistons, and extra pieces needed to add them, the
sweep pistons didn’t have enough strength to move forward. I had to double up
the sweep pistons too!
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maby you just need to synconise those to, then you maby need a bit more presure
but it don’t aks for dubbel the air
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Four pistons per leg (32 plus 4 timing pistons!) Wish I
had bout about 10 more 8455’s before they ran out of stock!
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how don’t :)
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But..... I doing better than last year where I had nothing to show with
respect to SSClagorpion.
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So many questions. I’m looking forward to seeing it at BF.
Steve
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I look forward to seeing you too.
Kevin
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sigurd
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Message is in Reply To:
 | | Re: SSC: Re: Classic timing circuits and XOR gates (long)
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| (...) No plates, but the studded beams are chosen for the superior strength they provide. (...) No, and this is a problem. SSClagorpion 2 will have all the legs have the same sweep, *but* the body will not be rectangular. I've been trying to avoid (...) (19 years ago, 9-Aug-05, to lugnet.technic)
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