Posted on 04/12/2009 12:15:48 PM PDT by 1believer
LOL! My neighbor sent over some chicken this evening. Bill was going to make spaghetti before that.
Finally made it.
But the editor is very happy with what she's received, so I guess it's worth it.
Anyway, your Italian-booted spiderbots. (What, no Spanish Leather?)
The first segment of the arm is one-fourth the circumference of the sphere. The second is one-half. All joints are freely rotating, and the arms can assume a wide variety of combinations in their orientations.Note the discrepancy here. In the artist's conception, the outer limb segments are the same length as the closer ones. My design allows a greater limb length without affecting the folding parameters.
I guess I am not following you on folding parameters. Their 2:2 ratio seems to occupy the same surface area as your 1:2 ratio, though it sets the inner pivot/mount deeper into the body. Would you explain, please?
Also, I can see why there may be an advantage in having all joints freely rotating on all axes, but you've got some additional control issues. Or were they freely rotating around one (leg) or two (mount) axes?
Hello!
What a day. Late (for me) getting to work, a meeting at 10 I was supposed to be running but because somebody else called it (weeks ago) I'd forgotten... *\:-( and shortened by the interminable e-mail, plus an "early" visit to the dentist.
If my productivity for the rest of the week matches today's, I am toast.
So y’all had chicken then? Sounds good. (Monday’s “chicken day” at the local grocery, 5 miles towards town.)
I didn’t have any chicken - it had bones. Had a fake hamburger instead. Anoreth went out to the stable before supper, so she can finish the chicken when she gets home. I hope she turns up before dark.
I’ll be ready to sleep very soon!
I presume “fake hamburger” is a veggie burger. They’re not all bad.
I just hope the flat light earlier delivers on the promise of Donner und Blitzen.
...good night all...
...night all...
...all...
.......
...
.
‘night
If you're sailing into the wind, be tackful.
When a spiderbot is ensconced in its storage or transportation area, its closest limb segments are held low and against the body, extending from its midsection down to its base.
Its second limb segments, which I described as twice as long, fold back 180 degrees on the limb and then extend from its base to its top, forming there, if you will, a joining of hands. It's as tight a conformation as you can scrunch.
Now if you have that picture, consider what happens when a spiderbot stretches out. You saw the scale. A man can fit comfortably inside, standing up. That, after all, is his position if he is operating the robot. He is strapped into a harness, with his left leg controlling the > tripod of legs, while his right leg controls the < tripod of legs.
Controlling six of the eight legs with his own legs allows the operator to use an insect gait, and never lose his balance. And he will still have two leg/arms to use as arms for carrying things or working. It's all very natural to use. The spiderbot merely mimics the actions of its operator.
With the extra length of the spiderbot legs I have designed, a brisk stroll by the operator is translated into approximately a thirty mile-per-hour pace across uneven terrain. I have no idea what it could do in the "hands" of a very skillful operator, or with more advanced programming.
Joint design is not something that I have dealt with in any detail. For practical reasons, it may be necessary to have limits on the rotation of first and second segments. It does simplify getting control cables and conduits through them.
There may be equally practical reasons to have rotating end-effectors. Such should be easy to control from a console, and the work they do can be impressive. Many of our own shop tools work this way.
IT'S BIGGER!
IT'S BADDER!!
OH NO! IT'S TOO MUCH FOR MR. INCREDIBLE!!!
Once it’s covered with cheese, mustard, onion, and tomato, I don’t care if there’s meat under there! And plenty of salt.
Nobody around but me and the dragons ... let's see, what can we foul up?
That tympanic membrane just cries out for a blue-tooth glue-on, doesn’t it?
LOL! That would be interesting, since the things don’t have a voice box. Wednesday could give them secret instructions, I guess.
Something like that. I thought their spiderbot design looked toy-like and plastic, not really suited for the rigors of the moon.
I’d also be critical of the joint structure, but that is after all an artist’s conception.
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