Our team gained valuable feedback from Mr. Williams, the STEM physics teacher at San Marin. Mr. Williams was a crucial factor in the process of learning about and creating our prosthetic. He helped us come up with two different ideas on how to bend the limb without it dragging along the floor. 

The first idea consisted of drilling through the center of the leg and joint to attach a spring. Allows a bend when the leg is lifted and the weight of the foot holds it down, but would spring back to a straight position when brought back to a standing position. 

The second idea is where the limb would initially start in a bent position. The joint would bend opposite of a usual joint, lifting the leg in the front. Friction of the ground would bring the leg to a straight position and an exterior system of rubber band like flexors. 

Ultimately our prosthetic follows the second idea.