ORCA V1/V2 Bionic Hand Open-source Anthropomorphic Robotic Hand Uninterrupted Dexterous Task Learning
Note:
- Please leave a message for the left/right hand (optional) you need after payment.
- It is unassembled, you need to assemble it by yourself.
Introduction:
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General-purpose robots must possess human-like dexterity and agility to
match the versatility of humans. A human-like form factor further
enables leveraging the wealth of data available from human hand
interactions. However, the bottleneck in dexterous manipulation lies not
only in software but arguably even more in hardware. Robotic hands
matching human capabilities are often prohibitively expensive, bulky, or
require enterprise-level maintenance, making them inaccessible for
broader research and applications. What if the research community could
get started with reliable dexterous hands within a day? We present the
ORCA hand, a 17-DoF tendon-driven robotic hand with fully integrated
tactile sensors that can be assembled in under 8 hours. We showcase
design features such as popping joints, auto-calibration, and tensioning
systems that significantly reduce complexity while increasing
reliability, accuracy, and robustness. We benchmark the ORCA hand across
a variety of tasks, ranging from teleoperation and imitation learning
to zero-shot sim-to-real reinforcement learning. Furthermore, we
demonstrate that our hand is capable of withstanding over 10k cycles, or
approximately 20 hours of continuous operation. CAD files and
documentation can be found on our dashboard.
The ORCA V1 Hand/The ORCA V2 Hand:
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The ORCA V1/ORCA V2 hand is a tendon-driven, anthropomorphic robotic
platform designed to closely replicate the structure and movement of a
human hand. It features 17 degrees of freedom -- 16 in the fingers and 1
in the wrist -- enabling a wide range of dexterous manipulation tasks.
Its design balances functionality, reliability, and accessibility.
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Open-Source: All design files (STLs), control software, material lists,
and step-by-step assembly instructions (including videos) are publicly
available on our dashboard. The project is built to encourage
replication, customization, and experimentation by researchers,
educators, and hobbyists.
- Reliable: The ORCA hand incorporates
several design choices focused on robustness and longevity. Joints are
engineered to safely dislocate under excess load rather than break,
which protects components and simplifies repairs. Additionally,
auto-calibration, low-friction tendon routing through the center of
rotation of each joint, and a modular layout contribute to consistent
performance and long-term usability.
- Cost-Effective: The hand
is centered around a 3D-printable design. All structural components can
be printed using a standard 3D printer, and the remaining off-the-shelf
parts are widely available and easy to source online, ensuring
accessibility for a wide range of users.
- Anthropomorphic:
Designed to match the proportions and joint layout of the human hand,
the ORCA V1 includes an opposable thumb and an actuated wrist. It
mirrors human joint configurations, including MCP, PIP, and ABD joints,
enabling it to interact with everyday tools and objects originally
designed for human use, and to perform a broad spectrum of manipulation
tasks with human-like agility. This anthropomorphic structure also
significantly simplifies teleoperation/retargeting and facilitates a
more straightforward training on human hand data.
- Together,
these features make the ORCA v1 hand a practical and versatile platform
for hands-on exploration in robotics and manipulation-focused learning
and development.
Package Included:
- 1 x ORCA V1
Official Kit (Feetech Servo) / ORCA V1 BOM Kit /ORCA V2 Official Kit
(Feetech Servo) /ORCA V2 Driver Kit For Option









