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Murray State University

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Mechanical

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Free-Body Diagram Analysis And Movement Design Of A Functional Prosthetic Hand, Hayden Smee May 2023

Free-Body Diagram Analysis And Movement Design Of A Functional Prosthetic Hand, Hayden Smee

Honors College Theses

The loss of a limb is a devastating event to an individual on both physical and psychological levels. Despite decades of advancements in medicine, occupational health, and general safety in society, most people know someone or have encountered individuals affected by limb loss. This project created a prosthetic hand designed to aid those individuals. The hand is a predominantly 3D-printed prosthetic hand that includes an individually moving index finger and opposable thumb capable of grasping a full soda can weighing 385 grams (0.85 pounds). Numerous design solutions for the actuation of the fingers and thumb were considered and rejected. Cable …