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cb07950 · Feb 11, 2025

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The Hexapod Project

⚠️ Work in Progress

This project is actively under development. Features are being added, refined, and tested continuously.

🦾 Introduction

The Hexapod Robot Project aims to create a completely open source six-legged robotic platform. I've always been fascinated by this kind of robots and I wanted to explore and experiment with a hexapod but I found that, even with a lot of resources available out there, I could not find a comprehensive guide from start to finish that showed how to deal with the electronics, code, the underlying mathematical model and so on. A great example is Make Your Pet's hexapod robot (from which I took inspiration) which is very good, with a huge community, but with a closed source app that handles the inverse kinematics and the gait generation strategies. This project is my effort to democratize what I learned.

  • Software: The software consists of two parts: a Controller and an Operator. The Controller does the heavy lifting, computing the inverse kinematics for each leg and the body, generating gait sequences, running machine learning/reinforcement learning models and so on; the commands required to set the computed joint values are then sent to the Operator for execution.
  • Hardware: I used a Raspberry Pi as Controller and a Servo2040 board as Operator. Other boards can potentially be used with proper adjustments to the code and configuration.

🔧 Repositories

The project is split into several repositories. Each repository focuses on a specific aspect of the robot:

  1. Hexapod-Controller

    • Contains the software for Controller and everything related to it.
    • Responsible for high-level computations such as inverse kinematics and machine learning/reinforcement learning models execution.
  2. Hexapod-Operator

    • Contains the software for the Operator and everything related to it.
    • Handles low-level servo control and communication with the Controller.
    • Contains details on the communication protocol I developed for the two boards to talk.
  3. Hexapod-Simulation

    • Implements a simulation environment using PyBullet.
    • Useful for testing gaits without requiring on the actual robot.
  4. Hexapod-Hardware

    • Includes 3D-printable files for constructing the hexapod body (and the link to the MakerWorld model page for print profiles).
    • Contains a Bill of Materials and assembly guides.

🎯 Goals

  • Experiment with my robot and annotate everything I do.
  • Offering detailed guides for replicating the project.
  • Providing accessible resources for everyone to build their own hexapod robots.

🤝 Contribution

Feel free to contribute by opening issues or submitting pull requests. Give a ⭐️ to this project if you liked the content.

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Main repository for my hexapod robot

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