Subject:
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Re: Ball Joint Frame ZRX1 version
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Newsgroups:
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lugnet.build.mecha
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Date:
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Mon, 14 Mar 2005 02:57:25 GMT
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Viewed:
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1039 times
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In lugnet.build.mecha, Eric Sophie wrote:
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In lugnet.build.mecha, Bryce McGlone wrote:
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In lugnet.build.mecha, Eric Sophie wrote:
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MC7 Ball Joint Frame ZRX1 version.
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snip
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I don’t see any doubles or stiffening a la Snead.
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No offense, but I don’t use handicaps. You ougta know that.
No insult intended towards our good friend.
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Ouch!
Actually, I’ve designed most of my recent frames and mecha to use only readily
available lego parts, with no stiffening or gluing required.
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The double ball joints create the kind of stiffness your talking about.
Plus the shoulders use glued ball joints from Bionicle watches.
That connection point’s only purpose is to swing the upper arm and pivot it
front and back slightly. The dual ball joints adjacent to the shoulders, work
the splay function and provide a sturdy base for the arm structure. The dual
ball joints located throughout the frame work great, very stiff, very strong.
The hips use the single piece dual ball joint part I pointed out.
That eliminates any seperation in the hips.
The 4 single ball joints in the shoulders and hips work in concert with each
other. Along with the arms and ankles, the spine also adds a dynamic to where
the stresses are channeled.
Without trying to sound over technical, the thing is sturdy, flexible and
hold’s it’s pose. Part of the beauty of scale and inter-relation between the
limbs and joints.
Sorry, I guess I’m bound to sound Technical, sorry to bust your rusty balls.
hahahahahaa.
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I understand some of what you’re talking about - when you restrict a ball joint
to one axis of rotation, it is much stiffer than if it is allowed to rotate
freely in any axis. Think of it as a technic friction pin with three times the
contacting surface area.
Actually, over time, the restricted ball joint will become extremely stiff and
even binds due to the buildup of plastic dust. The best way to overcome this is
to switch ball joints from time to time.
As for the joints which only use one ball joint, that will become weak over
time. There’s no way around it...even if it is moved only a little in more than
one axis of rotation...
snip
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we are leaning towards recomending gluing them.
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Booo! No gluing! Get the Bionicle watch part. If you glue lego together,
you’ll always regret it; you’ll find yourself staring at that one part that you
never thought you would need for anything else that is permanently welded to
another lego with M.E.K. cement. Plus, the M.E.K. glue doesn’t work well on the
technic ball joints - the peg just comes right out.
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Blush, sorry Chris, you rock, what were some of those Snead Techniques and >
how we used to say stuff like, Snead my joints baby...! lol
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Plus this has made me actually start building the frame I’ve been thinking
of since LAST time Snead was actually down here...what 9 months ago?
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Snead! I come for you!
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I’ll be in both L.A. and N.Y. very soon. I’m in Texas now... I come for both of
you!
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Thanks Bryce, and congrats again on your win of the BBC 25 for the Rack.
Really very cool and a way out concept, bravo!
e
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Eric, this is a very new and interesting project for you. I like that you are
trying a different type of building which will untimately be fused into your
present style. And those scorpion hands rock!
My hope is that this will someday lead to a worm gear frame from you...that
would be so cool!
Later,
Chris
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Message has 1 Reply:
 | | Re: Ball Joint Frame ZRX1 version
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| (...) It was Bryce's fault! I'm telling you! lol, just kidding. I think we remebered back to an early model that used some stiffening techniques. I absouletly know that your newer and later models do not use such techniques. Your still the Mac (...) (19 years ago, 14-Mar-05, to lugnet.build.mecha, FTX)
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Message is in Reply To:
| | Re: Ball Joint Frame ZRX1 version
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| (...) Thank you, that was part of my goal for this excersize. Leads one to appreciate like when your in art class and your drawing a nude subject. I'd really like to pursue emulating poses I see in real life with the ZRX1. I know some dancers, (...) (19 years ago, 13-Mar-05, to lugnet.build.mecha, FTX)
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