YEAH
$ 1 000
YEAH — an open-source, 5-finger tendon-driven robotic hand built for affordability, 3D-print customization, and real-world usability. Great for robotics labs, makers, and prosthetic exploration.
Available on backorder
Specifications and details:
| Strength [kg] | ~1–2 kg safe grip load |
|---|---|
| Weight [kg] | 350–500 g |
| Size | ~18–20 cm length, ~8–9 cm width (human-hand scale) |
| Number of fingers | 5 |
| Degrees of freedom, hands | N/A |
| Motor tech | Uses off-the-shelf hobby servomotors (e.g., WaveShare ST3215HS) to drive tendons for flexion/extension and thumb rotation |
| Main structural material | 3D-printed plastics: rigid parts in PLA/ABS, flexible or joint areas in TPU; silicone pads for fingers and palm provide grip surface |
| Manufacturer | Independent / open-source developer team, originally named “Rebelia,” now “YEAH.” |
| Nationality | Italy |
| Website | https://hackaday.io/project/204373-yeah-robotic-hand-formerly-rebelia |
Description
YEAH delivers an affordable, open-source robotic hand designed for broad accessibility. Its creators aim to put dexterous manipulation into the hands of researchers, makers, and small-scale robotics teams. Because it supports inexpensive 3D printing and off-the-shelf servomotors, developers can build or modify it without heavy investment.
2026 Humanoid Robot Market Report
Interested in the YEAH? Download 160 pages of exclusive insight from global robotics experts – uncover funding trends, technology challenges, leading manufacturers, supply chain shifts, and surveys and forecasts on future humanoid applications.
Featuring insights from
Rob Knight
Open source,
humanoid expert
2026 Humanoid Robot Market Report
160 pages of exclusive insight from global robotics experts – uncover funding trends, technology challenges, leading manufacturers, supply chain shifts, and surveys and forecasts on future humanoid applications.
In contrast to many gated robotics products, YEAH stays open and community-driven. Users can customize finger configuration, proportions, or tendon routing thanks to its parametric design workflow (via Blender). Furthermore, the hand has already passed basic reliability tests — it survived repeated open/close cycles with acceptable motor temperatures. Thus, YEAH represents a flexible, low-cost gateway into humanoid robotics and prosthetics, ideal for experimentation, prototyping, or educational projects.
Download the Humanoid Robot Market Report here
Website: https://hackaday.io/project/204373-yeah-robotic-hand-formerly-rebelia
