Search Results for: Shark fins prepared in pieces
did you use this instructable in your classroom?
in place, start the saw off of the pvc, bring the saw down through the pipe, and then leave the saw down until the blade has stopped. otherwise the blade could chip the pipe. cut two inch long pieces of inch pressure pvc pipe. these will make up the main portion of the compression chamber. cut a inch...
https://www.instructables.com/id/Air-Powered-Rocket-Launcher/