quad-robotic spider robot 2DOF

Spider Quadruped Robot | ESP32 Powered 8-DOF

This is an agile, 4-legged spider robot (quadruped) built for smooth movement and wireless control. By upgrading the classic frame with an ESP32, this build gains WiFi/Bluetooth capabilities, making it a perfect platform for remote-controlled walking, automated routines, or STEM learning.

The robot utilizes 8 servos (2 per leg) to achieve realistic "spider-like" articulation, including walking, rotating, and posing.

Technical Features

• Brain: ESP32 Dev Board (Dual-core power for smooth servo coordination).

• Movement: 8 Degrees of Freedom (8-DOF) using MG90S metal-geared servos for extra durability.

• Power Management: Integrated MP1584 DC-DC Step-Down converter to ensure stable 5V delivery, preventing the "brown-outs" common in DIY robotics.

• Connectivity: Capable of being controlled via a smartphone app or web interface (via ESP32).

Bill of Materials (BOM)

Assembly & Print Tips

• Print Settings: I recommend PLA or PETG with at least 3 perimeters for joint strength.

• Infill: 20% (Gyroid recommended for vibration resistance).

• Calibration: Ensure the MP1584 is tuned to exactly 5V using a multimeter before connecting your servos or ESP32 to avoid damage!

• Cable Management: Use small zip ties to route servo wires along the leg segments to prevent them from catching during movement.

Attribution & Credits

The 3D geometry for this build is based on the fantastic design by RegisHsu. This version focuses on the electronics integration and power efficiency using the ESP32 ecosystem.