For my university project, we were tasked with developing bottle rockets. I used this project to further develop my CAD skills. This design features an air valve mounted at the bottom, allowing the pump to remain out of harm's way while the system is functioning. This system was developed using practical and theoretical design methods, allowing multiple interactions to be created, varying in success. This was the first full-scale CAD assembly I undertook, which means various errors were encountered along the way, creating a learning opportunity.