College - Author 1

College of Engineering

Department - Author 1

Mechanical Engineering Department

Degree Name - Author 1

BS in Mechanical Engineering

College - Author 2

College of Engineering

Department - Author 2

Mechanical Engineering Department

Degree - Author 2

BS in Mechanical Engineering

College - Author 3

College of Engineering

Department - Author 3

Mechanical Engineering Department

Degree - Author 3

BS in Mechanical Engineering

Date

11-2020

Primary Advisor

Eileen Rossman, College of Engineering, Mechanical Engineering Department

Additional Advisors

Samantha Campbell, College of Engineering, Biomedical Engineering Department

Abstract/Summary

The following final design review outlines the process our team took in order to create a prosthetic for surfing. With the results of the Surf Leg V1 prosthetic, we designed, created, and tested our own product. The goal was to create a prosthetic that can immediately be used by an individual for surfing. From our findings, we decided that the focus of our project was to improve upon different features of the prosthetic leg designed by the previous senior project team. Our main focus was to improve mobility and reduce the weight of the ankle mechanism. The choice of Aluminum as a key material was ideal for its strength-to-weight ratio, and was used in the knee post. With each improvement we placed an emphasis on minimizing the amount of material used in order to reduce the overall weight. We determined a 3D-printed foot with carbon fiber as the material as it is flexible while still achieving the strength requirements. We also decided to use a 3D-printed ABS ankle cap as we discovered during the structural prototype that ABS will provide sufficient strength for the intended use of surfing. The size and shape of the rubber gelatin ankle component in comparison to Surf Leg V1 was optimized to further reduce the weight of the prosthetic. Features such as the raised foot edges were added in order to improve the mobility and allow a more responsive foot for surfing. The remainder of the final design was completed and the results are contained in this document.

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