Quote:
Originally Posted by animenerdjohn
You'd probably need a stronger grade tubing since you'll get less energy stored with less extension (E=1/2kx^2). Unless you're modifying your superstructure considerably.
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Yes, you will either need to switch out to a "stiffer" type of surgical tubing or add more strands of it; or both.
Note that while the equation for potential energy of a spring is E=.5*k*x^2, note that the k value for surgical tubing isn't constant as you stretch the surgical tubing. I would do some quick tests to determine the force required to deform to a certain length.