Spring Cannon (Full Design)

grabcad

Design for a cannon made from putting a spring through the tube, putting the small platform through the hole, pushing the small rectangular pole through said platform, and putting the golf ball through the tube. The circles represent every 15° that the cannon can be pointed at, from 15° to 75°. Set the launch angle by putting a small long object through a hole (such as a pencil), and let the cannon head rest on the long object. To shoot the cannon, pull back the platform using the small rectangular hole now protruding from the sides of the cannon to compress the spring, then release to shoot the golf ball.