Recent content by bananamanz

  1. B

    Building a Marble Catapult

    TL;DR Summary: I'm trying to solve how far to compress a spring to launch a marble 2-2.5m I currently have a catapult built with a total height of 10 3/8 inches. The catapult tube is angled at 42 degrees and when the set spring inside the catapult is compressed by 1 inch the marble is launched...