Quote:
Originally Posted by nixiebunny
I don't think that tension springs are necessary. Surgical tubing is essentially the same thing, but with a feel-good squishiness that will make your life better. Plus, it's free in the KOP!
We did a quickie catapult test yesterday using two loops of surgical tubing stretched 2 feet. It launched the ball with about 4 feet of loft. By doubling up the tubing, we should be able to get the necessary height on our next try.
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Surgical tubing is certainly workable; however, you will find that over time it will degrade in performance and you will have to tighten it or replace it. Probably fine for one regional, but an actual spring will remain much more consistent over time.