Tuesday, 24 February 2026

Arduino Robotic Arm with 6 DOF

DIY Arduino Robotic Arm

We have build a Robotic Arm using Arduino Nano, an interactive robotics system that translates human hand movements into real-time robotic motion. This Arduino Robotic Arm is for engineering students who want practical exposure to embedded systems, sensors, and real-time control.

Components Used

  • Arduino UNO
  • 3 × MG995 High-Torque Servo Motors
  • 3 × Micro Servo Motors
  • Breadboard
  • Jumper Wires
  • 3D Printed Parts
  • Screws & Assembly Hardware
  • External 5V Power Supply
Components Required for Arduino Robotic Arm
DIY Arduino Robotic Arm Components

Robotic Arm Fundamentals

Robotic Arm Joints

Joints allow bending and rotation, similar to human elbows and wrists. In a 6-axis arm, six joints work together to achieve complex 3D positioning.

Degrees of Freedom (DOF)

DOF represents independent movements.

  • 1 DOF → One direction movement
  • 3 DOF → Basic 3D movement
  • 6 DOF → Human-like flexibility

Servo Motor Control

Servo motors rotate to specific angles (0°–180°) using PWM signals. Proper torque selection is important for lifting weight safely.

Power Management

Multiple servos require an external 5V power supply. USB power from Arduino is not sufficient.

3D Design & Printing

The robotic arm structure is fabricated using 3D printing for lightweight and easy assembly.

Real-World Applications

Although this project appears simple, its core concept is widely used in advanced systems -
  • Industrial robotic manipulators
  • Remote-controlled robotic systems
  • Prosthetic hand control systems
  • Hazardous material handling robots
  • Surgical robotic systems

The Arduino Robotic Arm using Arduino UNO is more than a DIY robotics build - it’s a stepping stone into real-world automation and intelligent systems.

If you're serious about robotics, automation, or mechatronics, this is exactly the kind of project that strengthens your fundamentals while staying exciting and hands-on.

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