Lee -

For the sake of curiousity, let's back up a second on that theory. Granted, the torque is generated on the axis of rotation, but if you don't use the diameter of the nut as a base for calculation, how would you find the mechanical advantage so you could determine the amount of force to apply at a fixed distance from the center of rotation?

IOW, using the absolute center of rotation - "0" - in relation to the length of lever arm, the mechanical advavantage would be "infinite" no matter how long the lever. Isn't that correct - or am I confused?

In order to determine mechanical advantage, 2 real values must be known. What am I missing? <img src="/forums/images/graemlins/confused.gif" alt="" />

Frank

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