Humanoid Hand Project

Overview
I designed and built a tendon-driven humanoid hand to replicate natural finger motion. The project combined CAD modeling, 3D printing, electronics, and Arduino programming to create a functional robotic prototype capable of curling and extending fingers like a human hand.

Process

• Modeled each finger joint in SolidWorks, accounting for tendon routing and tolerances.

• 3D printed finger segments and assembled them using tendon strings for actuation.

• Integrated servo motors and wired them to an Arduino, mapping PWM signals for smooth movement.

• Developed a control program to receive serial inputs and adjust finger positions.

• Iteratively tested and refined tendon placement to solve issues like finger order reversal and return motion.

Skills & Tools

• CAD & Design: SolidWorks, GD&T basics

• Prototyping: 3D printing, assembly, tendon routing

• Electronics: Arduino programming, servo control, wiring/soldering

• Programming: C++/Arduino IDE, serial communication

• Testing & Debugging: Iterative prototyping, mechanical troubleshooting

Impact
This project demonstrates my ability to take a concept through design, fabrication, integration, and testing. It highlights my strengths in mechatronics, rapid prototyping, and problem-solving — skills that I continue to apply in my robotics and automation work.