Quote:
Originally Posted by Rodger Knox
If you mean a point where a torque is applied by string tension, then in 2d there's only one, the centroid of the cross section of the top and braces where it intersectects the plane of the saddle. I 3d it's more complex. In either case, the string tension beyond the saddle contribute to the internal stresses of a rigid bridge/top/plate structure, and not to the torque on that structure.
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In 2D, isn't there a fulcrum at each change of angle?
There is at least 1 change as the string exits the bridge and then another at the saddle.