Design and Implementation of an EMG-Based 3D-Printed Prosthetic Hand

The loss of an upper limb significantly affects an individual’s daily functioning, independence, and overall quality of life. Modern prosthetic hands aim to restore these capabilities, yet conventional solutions remain expensive, complex, and inaccessible for many users. This project presents the development of a low-cost, customizable 3D Printed EMG-Controlled Prosthetic Hand that utilizes surface electromyography (sEMG) signals to interpret user intent and generate intuitive hand movements. By integrating affordable 3D printing materials, Arduino-based control electronics, servo actuation, and EMG signal processing, the proposed system enables responsive and natural hand functionality such as grasping and releasing. The prosthetic is lightweight, modular, and easy to fabricate, offering significant advantages for rehabilitation, research, and resource-limited environments. This work demonstrates a practical approach to bridging mechanical design and biomedical signal interpretation, providing a scalable and accessible prosthetic solution that enhances user comfort.