photo of PB robotic arm
Final build of the robotic arm, including its 3x 28BYJ-48 stepper motors

Motivation

A newly acquired 3d printer, a starter arduino kit, and an interest in robotics. As my Spring 2026 semester began I aimed to use my free time to utilize these three things in one cohesive project.

I created a simple yet intentional 3 degree of freedom robotic arm that cost less than $30 to reproduce using Fusion360 for CAD and Arduino for controls.

Designing

Limitations

Dimensioning and Tolerancing

Controlling