3D Printed 6 DoF Robotic Arm

Robotic arms have the potential to perform numerous tasks, and 6 Degree of Freedom arms arguably balance dexterity and complexity the best. As part of a competition in the junior year of my undergrad, I led a team of 2 juniors and 5 sophomores in designing and implementing a 6 DoF Robotic arm.

The arm was controlled with the help of servomotors. Two types of servomotors were used for the robotic arm - the bottom 3 joints had heavier, more robust servos, while the last 3 joints had lightweight, lower torque servos. Slots were cut out in the links for seamless integration with servos, and 3D printing was used to manufacture the assembly.

For our work done in this project, we won the second prize in DJS Spark, a state-level competition for engineering projects. The research was continued to control the robotic arm with Wi-Fi for a greater range, and also by mounting this arm on a robotic rover, as part of my undergraduate capstone project.

CAD Model of the 6 DoF Robotic Arm

Completed and Assembled Robotic Arm

System Diagram

The Arm with its 2nd Place Certificate!