Quote:
Originally Posted by Chris is me
I'm at a loss as to how one should calculate grip force with that. Anyone have any ideas?
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Quote:
Originally Posted by JesseK
...It all depends on the friction of the balloon, tensile strength of the balloon, and I'm sure the vacuum plays a large part in it too. Then we'd have to consider the angle of grip as well.
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It seems to me that grip force would be essentially independent of the balloon. The only relevant factors I can think of immediately are the amount of "shrinkage" of the filler material when vacuum is applied, and the stability (probably shear strength, mostly) of the vacuum-compacted material.
(The friction of the balloon definitely matters when you try to figure how much weight you can pick up with a given grip force, of course.)