![]() you can draw back further or adjust the angle to adjust your aim. The spring is more repeatable, needing that you get a smooth movement of it and a clean release. Any one of these will throw it out somewhat. They are also less fun than a catapult!Ĭompressed air relies heavily on getting a consistent seal, weight of charge, pressure and release of pressure to have consistent shots. If you are trying for maximum accuracy, try to make it a linear launcher so it will be easy to aim and judge the range when shooting on a certain angle.īoth have fairly large issues with repeatability. If possible i would like to score 750+ as a school record and have my average be 600+Įdit: I have 5 weeks to craft a CAD and cut it out and do tests. If i hit the edge of a circle and dont go in it is 25 points and i have 10 shots per round and 3 rounds. I get to make it how i want to based on the top criteria. Any help? i need to make it out of wood and cant use anything like motors or gas tanks. the scoring system is setup like skiball, there are 3 circles that i need to land in, getting smaller as i go. only 2 feet tall when pulled down (max) So i need to launch a ball into a target using a personally created launcher using Autodesk and wanted to know the best design type and/or an idea (8th Grade Tech) ![]() Sorry for long writingĮdit: Catapult is most used in previous projects I am unaware if i get practice shots beforehand, probably if i have finished early yes. The trebuchet has a same weight counterweight that drops from the same height, although it would be hard to design a counterweight holder out of wood. I was thinking trebuchet would be the better option because the catapult would need us to manually pull it down leaving more room for error in the repetitiveness. Yes i don’t want you to do the project for me lol. Let's say both catapult and trebuchet can handle the distance, which one has the reputation as being most repeatable? ![]() So begin by telling us, what research have you done so far.ĭo you get to calibrate it with practice shots beforehand? I'm sure you don't want us to do it for you, you want most of the design fun for yourself and your team.
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