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
College - Author 4
College of Engineering
Department - Author 4
Mechanical Engineering Department
Degree - Author 4
BS in Mechanical Engineering
Date
6-2026
Primary Advisor
Lawrence Domingo, College of Engineering, Mechanical Engineering Department
Additional Advisors
Sarah Harding, College of Engineering, Mechanical Engineering Department
Abstract/Summary
Deep-sea fishing presents significant challenges for individuals with upper-limb differences, particularly when using prosthetic devices that are not designed for recreational fishing activities. This project developed a custom prosthetic fishing rod attachment for a user who had lost her forearm and desired a safe, comfortable, and independent method of fishing. Through interviews with the sponsor and an iterative design process, a lightweight aluminum attachment was created to interface directly with the user's existing prosthetic quick-connect system.
The design process included concept generation, CAD modeling, rapid prototyping with 3D-printed models, manufacturing, and user-centered refinement. The final design consists of a welded aluminum assembly incorporating a rod cradle, V-block, connecting rod, and quick-connect interface. The attachment was optimized to improve fishing rod alignment, user comfort, and overall safety while maintaining a low weight and resistance to corrosion in marine environments.
Verification testing was conducted to evaluate structural performance, weight, corrosion resistance, cleanability, and user comfort. The final prototype weighed 0.66 lb and successfully withstood an applied load of 49 lbf, exceeding the required design load of 20 lbf by a factor of 2.45. Additional testing confirmed resistance to corrosion and ease of maintenance, while sponsor feedback validated the comfort and usability of the device.
The completed attachment enables the user to participate in deep-sea fishing with greater independence and confidence. This project demonstrates how affordable, user-centered assistive technology can expand recreational opportunities and improve accessibility for individuals with upper-limb differences.
URL: https://digitalcommons.calpoly.edu/mesp/883
Included in
Biomechanical Engineering Commons, Other Biomedical Engineering and Bioengineering Commons