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Nix Robot - DIY Humanoid

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August 04, 2026 by Nix Robot
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Bipedal humanoid robot with autonomous gaits and other moves. DIY builds are easy to make for students and teachers of robotics. Started as an educational project, it evolved into a rapidly expanding ecosystem of open-sourced STL and CAD files, codebase, and community around it. Features possible AI/ML integration and device expansion.

The Machine

Humanoid robots are hard to design and build. Not even mentioning coding gaits and other moves: these algorithms are not easily defined as for quadrupeds.

Nix Robot Project presents a new way to build a bipedal almost humanoid robot from scratch for everyone at different levels of engineering and programming experience.

Components

To make this one, a builder needs just a bunch of off-shelf materials:

  • 8 LX-16A Servos
  • 1 Debug/Control Board for them
  • 1 Raspberry Pi or Arduino
  • 1 YB1203000-USB Battery
  • 1 Voltage Down Converter from 12V to 7V
  • Wires, cables, LEDs, Speaker, Mics, Screws, and so on

But the main advantage is open design: both parametric and mesh files are available to download here.

Assembly

An experienced engineer can construct it in a couple of days. For those who study robotics or just need a comprehensive technical documentation, there is a published book, called Build the Bipedal Walking Robot: A DIY Guide to 3D Printing, Assembly, and Coding with Arduino and Raspberry Pi. By Nix Robot. Published in 2025. ISBN: 9798278222026, 9798278612087.

Coding

A builder can develop any code for the robot and release it under any license. However, the above-mentioned book comes with code examples that are closed-source.

# Examples of methods available
def check_angles():
def homing_position():
def move_all_servos():
def move_left_leg():
def move_right_leg():
def straight():
def tilt_left():
def tilt_right():
def disable_torque():

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