At Mass Academy, STEM / STW is taught by Dr. Crowthers. STEM I is a unique science course where students complete their own independent research projects. Students have the freedom do a project of their liking in math, science, or engineering. The projects begin over the summer, before junior starts with initial brainstorming. A majority of A Term is spent continuing brainstorming and starting preliminary research. B and C Term vary for students, based on their project.

Puppy Prosthetics: A Method for Mobility Rehabilitation Implementing 3D Design

My STEM I project was an engineering project where I designed and 3D printed a limb for my client, a dog who had an amputated left frontal limb.


Graphical Abstract

Graphical Abstract

Problem Statement

Many amputated dogs have limited mobility, and prosthetic limbs are expensive and not common for dogs. 

Engineering Statement

The objective of this project is to improve the mobility of a dog that has an amputated front left limb. The cost of this prosthetic will be lower compared to currently available prosthetics since it will be manufacturing them out of a more cost-effective and accessible material. The prosthetic must be functional, lightweight, and have the ability to withstand daily activities. 

Project Proposal

Click here to view my STW page with my project proposal.

Literature Review

Click here to view my STW page with my Literature Review.


Graphical Abstract


Methods Infographic

Methods Infographic


Figure #1

Final CAD

Figure #2

Final CAD

Figure #3

Final CAD

Figure #4

Soccy wearing leg


The average speed of Socrates’ increased by 12.73% His angular movement decreased by 5.26%, proving increased stability This clearly shows effectiveness of the prosthetic limb.


Analysis of the Decision Matrix leads to positive conclusions about the prosthetic leg. This device printed quickly, in approximately 10 hours. All the materials cost approximately $15. This leg not only helped my client regain mobility, but it allowed him to be able to wear a harness again. He can now wear a leash, and go on walks with his family.


February Fair Poster