The humanoid open-source robot “pib” is available in a new version and continues to rely on 3D printing as the central manufacturing technology. Developed by Nuremberg-based isento GmbH, the system targets makers, educational institutions, and research teams who want to build hardware transparently and extend it with their own software. All mechanical components can be produced with off-the-shelf FFF/DLP printers; the project site provides STL files, bills of materials, electronic components, and detailed documentation. According to the initiators, the community has more than 1,800 members who actively support the project; it has been honored with the German Design Award 2025 and the German Innovation Award 2025, among others.
Technically, pib combines modular humanoid kinematics with servo drives, sensors, and open software components. Version 4 introduces a microphone array that not only improves speech quality but also localizes sound sources. This is complemented by revamped speakers for more natural interaction as well as three freely programmable RGB buttons on the torso for direct control commands. The mechanical design has been revised: motor calibration has been simplified, and access to the electronics—including the power button—has been made more practical. According to the project team, numerous adjustments flowed directly from community feedback into the design.
“With pib, we pursue the vision of making robotics accessible to everyone. The new release shows how open source drives innovation: a humanoid robot you can build, extend, and understand yourself. We’re particularly proud that many improvements came directly from our community’s valuable feedback,” says Dr. Jürgen Baier, co-founder and CEO of pib.rocks.
The robot is already used in more than 70 schools and educational institutions. For teaching, 3D printing creates a direct link between design, manufacturing, and programming—from the workbench to the classroom.
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