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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.

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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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28 robots of 270

Page 1 of 2 · Ready to build first, then by buildability

  • SO-101

    A low-cost 3D-printed robot arm built as a leader and follower pair, for teleoperation and for teaching tasks by demonstration with LeRobot.

    Robot armBeginnerBuildability 98/100 · Ready to build
    • Works with AI
    €226.30

  • PingTi Arm

    A low-cost, human-arm-scale open-source robotic arm compatible with Lerobot, based on the SO-100 arm, with a 600mm span and up to 500g payload.

    Robot armIntermediateBuildability 85/100 · Ready to build
    • Works with AI
    €218.28

  • Giraffe

    A cost-effective, ROS2-compatible 5-DoF robotic manipulator with a leader-follower teleoperation setup, designed to lower the barrier to entry for Embodied AI.

    Robot armIntermediateBuildability 80/100 · Ready to build
    Cost not stated

  • SO-ARM 102

    An open-source leader and follower robot arm kit with 5 degrees of freedom plus a gripper, for teleoperation and imitation learning.

    Robot armIntermediateBuildability 80/100 · Ready to build
    • Works with AI
    $414.21≈ €370 (ECB rate, 14 Oct 2026)

  • PAR6 Collaborative Robot Arm

    A 3D-printed collaborative robot arm for research, education and rapid prototyping in physical AI.

    Robot armAdvancedBuildability 78/100 · Buildable with some effort
    • Works with AI
    Cost not stated

  • EL-A3

    A 7-DOF desktop robotic arm with a Python SDK and ROS2 control system for research and education.

    Robot armAdvancedBuildability 75/100 · Buildable with some effort
    Cost not stated

  • Robotic Arm

    An open-source robotic arm controlled by an ESP32-C3 via a PCA9685 servo driver and an Xbox-compatible gamepad.

    Robot armIntermediateBuildability 75/100 · Buildable with some effort
    ¥481≈ €64 (ECB rate, 14 Oct 2026)

  • U-Arm

    A low-cost, universal leader-follower teleoperation system for commercial robot arms with plug-and-play hardware configurations.

    Robot armIntermediateBuildability 75/100 · Buildable with some effort
    • Works with AI
    $60≈ €54 (ECB rate, 14 Oct 2026)

  • Koch v1.1

    An improved version of Alexander Koch's low-cost robot arm, a leader and follower pair with Dynamixel servos for LeRobot. The price includes both arms.

    Robot armBeginnerBuildability 73/100 · Buildable with some effort
    • Works with AI
    €673

  • PAROL6

    A 6-axis 3D-printed desktop robot arm with stepper motors, gearboxes and belts, modelled on industrial arms, with its own control firmware.

    Robot armAdvancedBuildability 69/100 · Buildable with some effort
    Cost not stated

  • YAO

    A 7-DOF personal robotic arm with ROS-based simulation and control.

    Robot armAdvancedBuildability 65/100 · Buildable with some effort
    Cost not stated

  • CamBot

    A 6-DOF camera arm with a ZED Mini stereo camera that streams video to a WebXR VR headset and follows head tracking for teleoperation.

    Robot armIntermediateBuildability 60/100 · Buildable with some effort
    Cost not stated

  • Hand Exoskeleton

    A low-cost 6DoF hand exoskeleton using linkage and tendon mechanisms, controlled by an ESP32 and seven SC09 bus servos.

    Robot armIntermediateBuildability 60/100 · Buildable with some effort
    ¥500≈ €67 (ECB rate, 14 Oct 2026)

  • NormaCore

    NormaCore is a unified open-source toolkit and platform for developing and operating physical systems, including a 7+1 DoF 3D-printed robotic arm (ElRobot) and a desk lamp.

    Robot armIntermediateBuildability 60/100 · Buildable with some effort
    • Works with AI
    Cost not stated

  • RAVEN

    A 3-DOF robotic manipulator arm built on quasi-direct-drive actuators, with CAD, URDF and 3D-printable parts.

    Robot armAdvancedBuildability 60/100 · Buildable with some effort
    Cost not stated

  • AIRA

    A 3D-printable 7-DoF robotic arm with native LeRobot integration for teleoperation, demonstration recording, and policy training.

    Robot armAdvancedBuildability 57/100 · Buildable with some effort
    • Works with AI
    €2,000

  • ElectronBot

    A robotic arm that can be controlled via Python, with servo control, image transmission, and integration with Unity for 3D visualization.

    Robot armIntermediateBuildability 55/100 · Buildable with some effort
    Cost not stated

  • Desktop Robot Arm

    A compact 3D-printed desktop robot arm with a rotating base and gripper, controlled through a browser joystick over its own Wi-Fi access point.

    Robot armIntermediateBuildability 50/100 · Buildable with some effort
    Cost not stated

  • DIY Delta robot

    A DIY delta-type parallel robot controlled from a Python application with live kinematics visualization and Bluetooth connection.

    Robot armAdvancedBuildability 45/100 · Incomplete documentation
    Cost not stated

  • Dolphin Robot Arm

    A 3-degree-of-freedom desktop dolphin robot arm controlled via an STM32 microcontroller and a PS2 gamepad.

    Robot armIntermediateBuildability 45/100 · Incomplete documentation
    Cost not stated

  • H1 6-Axis 3D-Printed Manipulator

    A 6-axis 3D-printed robotic arm capable of understanding human commands and performing tasks.

    Robot armIntermediateBuildability 45/100 · Incomplete documentation
    Cost not stated

  • 6-DOF Articulated Robot Arm V1

    A low-cost, six-degree-of-freedom articulated robotic arm designed for education, research, and small-scale automation tasks.

    Robot armIntermediateBuildability 40/100 · Incomplete documentation
    Cost not stated

  • ALTO 3D Printed 6 Axis Robotic Arm

    A 3D printed desktop high precision 6 axis robotic arm controlled over USB with a Python API.

    Robot armAdvancedBuildability 40/100 · Incomplete documentation
    $400≈ €357 (ECB rate, 14 Oct 2026)

  • EEZYbotARM

    A four-axis, 3D-printable hobby robot arm controlled from Python and Arduino, with 3-D forward and inverse kinematics.

    Robot armIntermediateBuildability 40/100 · Incomplete documentation
    Cost not stated

Robots 1–24 of 28

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