[OS X TeX] OT: A favour --- formula names for beam deflection and movement of a dial?

[Axel Kielhorn]

Hello William!

> I've taken up archery and am building an arrow spine tester (a tool for determining the stiffness of an arrow shaft).
> 
> I'm drawing up the dial and need to show how much one end of a lever moves when the other end is depressed.

I don't understand your problem.
Do you want to measure torsion along the axis or deflection?

In either case one side needs to be fixed when you apply a force or a momentum to the other side.

        
X|>>>--------------->
^                   ^ apply force or momentum here
This end does not move

Axel