Quote:
Originally Posted by BetaHelix
What motors are you using for your climbers? Would 1-2 775pros work if we have a ratchet for support?
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The Linear Motion tab, in the JVN calculator
http://www.chiefdelphi.com/media/papers/2755
Should help you find the necessary gear reduction, pulley size etc. As Cory stated it is all dependent on the amount of time you wish to take to climb.
As an example one 775pro in a 64:1 VP with a 1 inch diameter spool(not taking into account spool size increase as cord is winded) should be easily be able to lift a 140 pound robot in under 3 seconds