Jul 18, 2025 20:00:00

Amazing Hand: an open-source, super-cheap, four-fingered robotic hand

The Amazing Hand project is an open source robotic hand project by

Pollen Robotics , a humanoid robot startup company acquired by Hugging Face, known for its AI development platform, in April 2025. It is capable of reproducing human-like hand movements while being significantly cheaper than conventional robots. Hugging Face provides a detailed explanation of Amazing Hand, and the source code is available on GitHub.

We're open-sourcing 'The Amazing Hand', a fully 3D printed robotic hand for less than $200
http://huggingface.co/blog/pollen-robotics/amazing-hand

GitHub - pollen-robotics/AmazingHand: Code and model to control the AH!
https://github.com/pollen-robotics/AmazingHand

Pollen Robotics said, 'Robot hands often have two major problems: they are very expensive and not very expressive. The goal of the Amazing Hand project is to make it possible to explore the possibilities of humanoid hands at a moderate cost.' According to Pollen Robotics, inspired by a research project called ' ILDA Hand ' announced by researchers at Asia University in Taiwan, the project aims to simplify the ILDA hand concept and lower the introduction cost for trying out anthropomorphic robotic hands.

The key point of Amazing Hand is that each of the four fingers has two motors that can bend and extend, and can abduct and adduce, allowing for a high degree of freedom of movement. In addition, the rigid frame is covered with a thermoplastic polyurethane (TPU) shell, which is often used for smartphone cases, allowing for soft and gentle contact with objects.

Below is a diagram showing the range of motion and placement of each finger. The total length is 195mm, the width is 105mm, and the index finger and opposing thumb are placed. When the fingers are fully spread, the width between the thumb and index finger is 180mm. The entire robot arm weighs about 400g.

In addition, a more advanced demo using hand tracking was also released, in which a virtual hand moves in accordance with the movements of a human's fingers, and these movements are input to move a robotic hand.

According to Pollen Robotics, the cost of one Amazing Hand hand is about 200 euros (about 34,000 yen). The cost of ready-made multi-joint prosthetic hands and robotic hands ranges from hundreds of thousands of yen to tens of millions of yen, so the Amazing Hand is an amazingly cheap robotic hand with equivalent class functions.

Amazing Hand is an open source project, and the parts list, 3D printing files, assembly guide, basic demo program, and more can be found on GitHub.

GitHub - pollen-robotics/AmazingHand: Code and model to control the AH!
https://github.com/pollen-robotics/AmazingHand?tab=readme-ov-file