Crag & Route Beta

Topic	Date	User
Good (safe) 24s at Arapiles	16-Nov-2011 At 12:54:54 PM	NMcKinnon
Message
On 16/11/2011 Hendo wrote: >Cams need some outward pressure from the springs to work properly, were >the springs in the cams still effective or were the axles gummed up? I don't think this is true. The friction force against the rock is a function of the cam lobe angle, and the tensile force acting on the stem. The spring forces would be far smaller by comparsion, and I would think negligible in this consideration. More geeky math available all over the internerd, including http://en.wikipedia.org/wiki/Spring-loaded_camming_device.

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