Spring Powered Cannon!

Designed in Autodesk Inventor and made for my Physics teacher, this cannon will blow you away! It will launch any projectile that fits into the 2cm barrel. I've tested with numerous springs and most soft compression springs will shoot objects at least 15ft.

PLEASE SCALE 10x or 1000% for normal size otherwise you will have a tiny cannon! This is because I created the part in mm units and when loaded into a slicer it thinks its in cm.