Final Project

Inspiration and Initial Idea

The inspiration for this project came from advanced robotic arm systems seen in cinematic and industrial applications. The first reference explored the idea of a mechanically expressive robotic arm with visible actuators, layered structures, and human-like movement. The second reference helped in understanding stable robotic arm construction, articulated joints, and controlled directional movement.

Instead of directly recreating these systems, the goal was to extract key ideas such as articulated motion, mechanical interaction, and responsive movement, and simplify them into a realistic prototype that could be fabricated and tested within the project timeline.

An initial sketch was developed to understand the placement of actuators, joint movement, arm proportions, and the relationship between the base and arm structure. The sketch also helped visualize how the robotic arm could achieve controlled movement while maintaining structural stability. Camera placement and viewing angles are still being finalized as part of the ongoing development process.

Project Concept

The project is a camera-assisted robotic arm prototype designed to demonstrate articulated movement along with live visual feedback. Instead of building a fully autonomous robotic system, the focus is on creating a controllable manipulator capable of performing basic movement and object interaction.

The system works through a continuous loop of:

Input → Processing → Motion Output → Visual Feedback

User input from joysticks or potentiometers is processed by a microcontroller, which controls multiple servo motors responsible for base rotation, arm lifting, extension, and gripper movement. A mounted camera provides live visual feedback of the arm’s workspace and movement.

The project focuses on integrating fabrication, electronics, motion control, and interaction into a single working prototype while keeping the system achievable and reliable.

Mechanical Structure

The robotic arm consists of four primary sections:

Base Unit for structural support and rotation Shoulder Joint for lifting movement Elbow Section for extension and reach Gripper Mechanism for lightweight object interaction

The structure is planned using a combination of 3D printed parts and laser-cut components to maintain lightweight construction and ease of fabrication.

Basic Component List Electronics ESP32-WROOM or Arduino Uno ESP32-CAM module or USB camera Servo motors (MG996R / SG90) Joystick modules or potentiometers External 5V power supply Jumper wires and connectors Mechanical Components 3D printed arm links Laser-cut support structures Bearings, screws, and spacers Lightweight gripper mechanism Expected Outcome

The final outcome is a functional robotic arm prototype capable of articulated movement with integrated camera feedback. The project demonstrates the integration of mechanical fabrication, embedded electronics, actuator control, and human-machine interaction within a compact robotic system.