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Open-source robots with their licenses, parts and source files. Every page is pinned to a commit on GitHub.

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Ready to build: a score of 80 or more, a license and a finished design.

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Where the project was published, known for 29 of 270 robots. Never guessed.

Guide translated from

Guides machine-translated into English by Robotheca, with a link to the original on each robot page.

37 of 270 robots state a cost. Costs in other currencies are compared using the ECB reference rate of 14 Oct 2026. Robots without a known cost are hidden unless you include them.

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42 robots of 270

Page 2 of 2 · Ready to build first, then by buildability

  • Photo on GitHub
    Other

    Tdrone

    An open-source coaxial twin-rotor drone (helicopter-style swashplate control) that can be 3D printed and rebuilt by hobbyists.

    • No license
    Level
    Advanced
    Buildability
    40/100
    Incomplete documentation
    Cost
    Not stated
  • Other

    TipTap

    A 3D-printed bipedal robot built as a low-cost desktop platform for semi-direct drive walking research.

    Level
    Advanced
    Buildability
    40/100
    Incomplete documentation
    Cost
    Not stated
  • No photo yet
    Other

    Woodpecker Writing Machine

    A low-cost DIY writing machine that draws on a vertical surface using two stepper motors and a servo-controlled pen.

    • Work in progress
    • No license
    Level
    Intermediate
    Buildability
    40/100
    Incomplete documentation
    Cost
    ¥25.80≈ €3 (ECB rate, 14 Oct 2026)
  • Photo on GitHub
    Other

    ElectronBot Peripheral

    A collection of 3D-printable accessories and decorations for the ElectronBot robot.

    • No license
    Level
    Intermediate
    Buildability
    35/100
    Incomplete documentation
    Cost
    Not stated
  • No photo yet
    Other

    Peeqo

    A desktop robot that responds entirely in its own voice, built from 3D-printed parts and custom electronics.

    Level
    Intermediate
    Buildability
    35/100
    Incomplete documentation
    Cost
    Not stated
  • No photo yet
    Other

    ProtoBot

    An ultra cheap, simple two-motor robot with four sensors that a middle schooler can build in several hours.

    Level
    Beginner
    Buildability
    35/100
    Incomplete documentation
    Cost
    Not stated
  • Photo on GitHub
    Other

    Wheel-legged Robot (Balance Leg V2)

    A wheel-legged balancing robot with leg-joint motors and hub-wheel motors, controlled by a custom STM32H723 board using LQR and VMC.

    • No license
    Level
    Advanced
    Buildability
    35/100
    Incomplete documentation
    Cost
    Not stated
  • No photo yet
    Other

    Wheelbot

    A jumping reaction wheel unicycle robot that balances on a single wheel and can jump.

    Level
    Advanced
    Buildability
    35/100
    Incomplete documentation
    Cost
    Not stated
  • Other

    ZGPS-01

    A transformable robot that switches between a spherical rolling mode and a hexapod walking mode.

    Level
    Advanced
    Buildability
    35/100
    Incomplete documentation
    Cost
    Not stated
  • No photo yet
    Other

    ALARIS Hand

    An open-source 6-DOF anthropomorphic robotic hand with linkage-based fingers and worm-and-rack transmissions, intended as a low-cost platform for research and education.

    Level
    Advanced
    Buildability
    30/100
    Incomplete documentation
    Cost
    Not stated
  • Other

    Combat Robot

    A 3.5 kg wheeled combat robot with STM32 and Raspberry Pi, designed for robot fighting competitions.

    • Competition robot
    Level
    Intermediate
    Buildability
    30/100
    Incomplete documentation
    Cost
    Not stated
  • Photo on GitHub
    Other

    Hexapod Robot STC15 Controller

    A hexapod robot controlled by an STC15 microcontroller, featuring a 21-channel servo controller and 3D-printable parts.

    • No license
    Level
    Intermediate
    Buildability
    30/100
    Incomplete documentation
    Cost
    Not stated
  • Photo on GitHub
    Other

    ONE-Robot

    A self-balancing unicycle robot based on IMU and STM32.

    • No license
    Level
    Intermediate
    Buildability
    30/100
    Incomplete documentation
    Cost
    Not stated
  • No photo yet
    Other

    Robot Nano Hand

    An AI-powered robot hand that can be rebuilt by 3D printing its parts.

    • Works with AI
    Level
    Intermediate
    Buildability
    30/100
    Incomplete documentation
    Cost
    Not stated
  • Photo on GitHub
    Other

    Cube Solver

    A compact robot that solves a scrambled 3x3 Rubik's Cube using a STM32F407 microcontroller.

    • No license
    Level
    Intermediate
    Buildability
    25/100
    Incomplete documentation
    Cost
    Not stated
  • No photo yet
    Other

    LEAP ROS2

    A low-cost ROS2 robot designed for students and hobbyists to learn robotics and ROS2 development through hands-on assembly and programming.

    Level
    Intermediate
    Buildability
    25/100
    Incomplete documentation
    Cost
    ¥200≈ €27 (ECB rate, 14 Oct 2026)
  • Other

    Stepping Balancer

    A two-wheeled inverted pendulum robot controlled by a Nucleo board and driven by stepper motors.

    Level
    Advanced
    Buildability
    25/100
    Incomplete documentation
    Cost
    Not stated
  • Photo on GitHub
    Other

    Rhino Gripper

    An open-source two-finger adaptive gripper inspired by the Robotiq design.

    • No license
    Level
    Intermediate
    Buildability
    15/100
    Incomplete documentation
    Cost
    Not stated

Robots 25–42 of 42

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