A client of our company requested we build a home defense system for them. After received the request, got a little creative. We decide to add a little nostalgic twist. Instead of building a gun turret, our original plan. We decided to build the catapult. We started by finding some wood pieces to create the base, launch blocker, and launch arm. We then drilled, glued or screwed those pieces together. After that we wired up the servos and rubber bands to create the final product. We used a code that we had made prior to the project to launch the device.