Projectile Launcher

This is a projectile launcher made for use in the demonstration of projectile motion calculations. It is adjustable from 5-65 degrees in increments of 3.75 degrees. Most rubber balls fit. The blueprints should provide any other information.
You may have to shave about a millimeter off of the arms. This will not damage performance.

Use slingshot elastics for power.

Please credit me for the design. I hope you enjoy it, and feel free to report any breakages.