Student Develops Multifunctional 3D-Printed Prosthetic Arm for Sister
A mechanical engineering student dedicated 100 hours to designing and printing a custom, adaptable prosthetic arm for his younger sister, who was born without a left forearm.


A mechanical engineering student has successfully designed and created a multifunctional prosthetic arm for his younger sister using a 3D printer. Vitaliy Bondarchuk, a 22-year-old student at Bob Jones University, dedicated approximately 100 hours to this project, which served as his final degree requirement. His sister, Bella, who is seven years old, was born with a congenital malformation, lacking her left arm below the elbow.
Personal Project with a Purpose
Bondarchuk’s motivation stemmed from a desire to help his sister navigate daily tasks and enjoy her hobbies more easily. He observed that while prosthetic arms exist, he couldn’t find any multi-tool or adaptable options that would suit Bella’s needs for various activities. He explained to the American Society of Mechanical Engineers that the challenge was to assist her in simple tasks and activities she enjoys. This led him to conceive of a prosthetic arm with interchangeable accessories.
Innovative Design and Development
Recognizing the limitations of creating a complete prosthetic limb within the project’s timeframe, Bondarchuk focused on a modular design. This approach allows for different tools and attachments to be swapped out depending on the activity. For instance, he designed a cardholder to help Bella play games like Uno and a brush holder for painting.
The development process involved meticulous planning, documentation, precise measurements, and design work using SolidWorks. Bondarchuk iterated through prototypes, ensuring a proper fit and functionality. A significant challenge in prosthetic design, which he had to address, was incorporating non-abrasive padding to prevent skin irritation.
The project culminated in a functional, multifuctional prosthetic arm that Bella now uses daily. Beyond tools for hobbies, the arm also includes a flashlight attachment. Bondarchuk received an outstanding grade for his final project.
Future Enhancements and Applications
While Bondarchuk has since graduated and secured employment, he intends to continue refining and updating Bella’s prosthetic arm as she grows and her interests evolve. His mother has even suggested that a future attachment could be for driving.
The development highlights the growing capabilities of 3D printing in creating customized and affordable assistive devices. Projects like Bondarchuk’s demonstrate the potential for technology to significantly improve the quality of life for individuals with limb differences. The cost-effectiveness of 3D-printed prosthetics, compared to conventional ones, also makes them more accessible, with resources like e-NABLE offering support and designs for open-source prosthetic projects.
Key facts
| Aspect | Detail |
|—|—|
| Student | Vitaliy Bondarchuk |
| University | Bob Jones University |
| Project | Multifunctional 3D-printed prosthetic arm |
| Time Invested | Approximately 100 hours |
| Recipient | His younger sister, Bella |
| Key Feature | Interchangeable tool attachments |
This development is relevant to ReviewArticle readers interested in the practical applications of AI and advanced manufacturing technologies like 3D printing in creating innovative solutions for accessibility and personal assistance. It showcases how engineering student projects can lead to tangible improvements in people’s lives, aligning with the site’s focus on AI tools, developer workflows, and product news.
Source: Un estudiante pasó 100 horas frente a una impresora 3D para hacerle una prótesis multifunción a su hermana pequeña – Xataka, https://www.xataka.com/aplicaciones/estudiante-paso-100-horas-frente-a-impresora-3d-para-hacerle-protesis-multifuncion-a-su-hermana-pequena
Datos clave
| Punto | Detalle |
|---|---|
| Fuente | Xataka IA |
| Fecha | 2026-07-19T10:46:06+00:00 |
| Tema | Un estudiante pasó 100 horas frente a una impresora 3D para hacerle una prótesis multifunción a su hermana pequeña |
Source
Xataka IA Publicacion original: 2026-07-19T10:46:06+00:00
Maya Turner
Colaborador editorial.
