Document Type

Honors Project

First Advisor

Dr. Jason Ybarra

Degree Award Date

Summer 2019


3D printing, prosthetics, Arduino, biomedical engineering, computer programming, physics, electronics, circuits, amputees, robotics


Biomedical | Biomedical Devices and Instrumentation | Biomedical Engineering and Bioengineering | Computer Sciences | Digital Circuits | Engineering Physics | Medicine and Health Sciences | Orthotics and Prosthetics | Physics | Programming Languages and Compilers | Rehabilitation and Therapy | Robotics


A 3D printed hand and arm prosthetic was created from the idea of adding bionic elements while keeping the cost low. It was designed based on existing models, desired functions, and materials available. A tilt sensor keeps the hand level, two motors move the wrist in two different directions, a limit switch signals the fingers to open and close, and another motor helps open and close the fingers. All sensors and motors were built on a circuit board, programmed using an Arduino, and powered by a battery. Other supporting materials include metal brackets, screws, guitar strings, elastic bands, small clamps, eye pins, and various circuit components. Some adjustments and improvements should be made, but this model serves as a prototype for future research and may help amputees one day.

Recommended Citation

Zarin, Rachel. “Improving 3D Printed Prosthetics with Sensors and Motors.” Senior Honors Projects, Bridgewater College, 2019.

Force Open Access