Uploaded May 2024 | Updated September 2026, 59 minutes ago

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This LEGO spider has 4 legs, with two joints per leg. It walks forward, turns, and makes curves. You can remote control it with a gamepad or put it in autonomous mode. I programmed the legs with keyframe animation that I transform live. In a next version I want to use inverse kinematics and three-joint-legs.

To build it, you need:
- 1 set of 51515 LEGO Robot Inventor
- 4 geekservo 2kg (I ordered mine from China)
- 1 LMS-ESP32 board to control the servos from your hub - antonsmindstorms.com/product/wifi-python-esp32-board-for-mindstorms
- Firmware for the LMS-ESP32 - firmware.antonsmindstorms.com
- Building instructions (or design yourself) - antonsmindstorms.com/product/servo-spider-pdf-building-instructions
- Free python code github.com/antonvh/mpy-robot-tools/tree/master/Example%20projects/esp32%20spider

💬 Please like and ask any questions you have in the comments!

--- Chapters ---
00:00:00 Inventor Servo spider in action
00:00:14 Introduction to the servo spider
00:00:58 Remote control options for the Robot Inventor servo spider
00:01:20 LMS-ESP32: the magic hobby servo interface
00:03:25 How the movement of the Inventor Servo Spider legs works
00:06:42 Links for building your Robot Inventor Servo Spider
00:07:31 Remote control pairing and demo

--- Links ---
Get the T-Shirt 👕 here:
👉 antonsmindstorms.com/product-category/t-shirts

Support 🙏 my work:
👉 patreon.com/antonsmindstorms

For complete building instructions 📄 and in-depth articles go to:
👉 antonsmindstorms.com