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RE: The arm does have skating force

Mark,

When you say the vector does not pass through the main pivot point, are you referring to the first/lowest one in the mechanism? As far as I can figure, if the vector passes through any low-friction lateral bearing, it shouldn't be a factor on the arm. From there on, there's just a forward pull on the mechanism from that point, which he deals with using magnets. As I type, it occurred to me that there could be a skating force from the way the magnet system feeds out extra length, since it must be designed to restrain the arm based on angle. In other words, the last lateral pivot is not pure, it's got a magnetic assembly acting on it as well....

I'm basing all my analysis on the 15 minutes I spent looking at the arm last year, but I agree there could be a skating force.

-Bryan



Edits: 10/21/12 10/21/12

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  • RE: The arm does have skating force - Bry 17:16:51 10/21/12 (1)

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