Robotic Arm KIT 4DOF DIY with Servo Motors

Product Description

The 4 DOF Wooden Robotic Arm DIY Kit is an educational and beginner-friendly robotic arm designed for learning robotics, servo control, Arduino programming, and mechanical assembly. The arm is constructed primarily from lightweight wood and features four degrees of freedom for basic robotic movement.

The kit is compatible with SG90 and MG90S servo motors and includes 4 × SG90 servo motors, allowing the arm to be assembled and controlled without purchasing the motors separately. Its accurately cut wooden parts provide a simple mechanical structure suitable for DIY robotics projects.

The robotic arm can be controlled using development boards such as Arduino or Raspberry Pi, making it suitable for experimenting with servo positioning, robotic motion, automation, and programming. The kit is supplied in an unassembled state, so assembly is required after purchase.

Features

• 4 Degrees of Freedom (4 DOF) robotic arm
• DIY wooden robotic arm kit
• Includes 4 × SG90 servo motors
• Compatible with SG90 and MG90S servo motors
• Lightweight wooden construction
• Accurately cut wooden components
• Can be controlled using Arduino
• Compatible with Raspberry Pi
• Suitable for robotics and programming education
• Ideal for DIY and prototype projects
• Requires assembly after purchase

Specifications

Parameter	Specification
Product Type	4 DOF Robotic Arm DIY Kit
Number of DOF	4
Material	Wood
Servo Compatibility	SG90 / MG90S
Included Servo Motors	4 × SG90
Controller Compatibility	Arduino, Raspberry Pi
Quantity	1 Set
Colour	As Shown in Product Image
Assembly	Required
Construction	Lightweight Wooden Parts

Working Principle

The robotic arm uses servo motors to control the movement of its different joints. Each servo can be positioned at a specific angle using a suitable control signal from an Arduino, Raspberry Pi, or other compatible controller.

By coordinating the four servo motors, the arm can perform basic movements such as rotating, lifting, lowering, and positioning its end mechanism. The exact range of motion depends on the assembly and servo configuration.

Design and Construction

The arm is made primarily from lightweight wooden components with accurately cut sections designed for DIY assembly. The wooden structure provides a simple and economical platform for learning robotic mechanisms.

The included SG90 servo motors are installed at the appropriate joints during assembly. Additional screws, fasteners, or assembly hardware may be required depending on the exact kit version supplied.

Applications

• Arduino robotics projects
• Raspberry Pi robotics projects
• DIY robotic arm projects
• Robotics education
• Servo motor experiments
• STEM learning
• Programming practice
• Automation prototypes
• Mechanical design experiments
• Electronics and robotics workshops
• School and college projects
• Beginner robotics projects

Package Includes

• 1 × 4 DOF Wooden Robotic Arm DIY Kit
• 4 × SG90 Servo Motors

Note: The kit is supplied unassembled and requires assembly after purchase. Controller board, power supply, and other electronics are not included unless specifically mentioned.

Product Disclaimer

Important: This is a low-cost, lightweight robotic arm kit and may be relatively fragile. The wooden components or joints may break if excessive force is applied. Handle the parts carefully during assembly and operation.

The arm is intended primarily for educational, hobby, and lightweight demonstration applications and is not designed for heavy-duty industrial use.

Product images are shown for illustrative and representational purposes only. The actual product colour, dimensions, wooden finish, component design, and appearance may vary slightly depending on the manufacturing batch.

Manual measurements may have a small tolerance of approximately 0.1–0.3 cm.