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Unread 08-05-2014, 20:01
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Re: What are the correct terms for linkages and lifts

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Originally Posted by EricH View Post
The other term for a scissor lift, at least in FRC, is "What were you THINKING???" In addition to the degree of precision for the manufacture of individual links, they all have to go together precisely, and one end of the stack needs to be free to move horizontally, but not vertically. (This on top of the lift being rather unstable when fully extended--even a typical 26' lift can sway a bit when an average person walks from one end to the other while it's near the top of its travel.) Speaking as someone who uses one on a minimum of a weekly basis (and spent most of today on top of one), if someone successfully uses one in FRC, I will be quite surprised. (Current count of scissor-lift robots I've seen in elims: 1, maybe. On Einstein, 0.)
Technically, 254's ball lift this year was a scissor lift... Just a very short single stage one.
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