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Star Arm 102-LD (Leader)

Name: Star Arm 102-LD | LeRobot Certified Leader Arm | 6+1 DoF
Brand: Fashion Star
SKU: 02.09.00000026
Price: 199.00 USD
Availability: InStock

$199.00

In stock

🤖 HuggingFace LeRobot Certified — Star Arm 102 is officially recognized as a standard teleoperation device within the LeRobot ecosystem, enabling seamless imitation learning workflows.

This 6+1 DoF open-source robotic arm system features 12-bit magnetic encoders (0.088° resolution), an ultra-lightweight design (721g LD / 883g HD), and native support for the Python SDK, ROS2 Humble, and LeRobot.

The leader arm offers broad compatibility, seamlessly pairing with various follower arms (including the Star Arm 102-FL and third-party robots) to significantly reduce cross-platform hardware costs.

Available as a complete unit or DIY 3D-printed kit.

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SKU: 02.09.00000026

$499.00

Power Supply Notice

Due to regional differences, the power adapter is not included. If local customs restrict power supplies, please purchase a compatible adapter locally or order one from our store.

Overview

Lightweight Design for Fatigue-Free Operation

Weighing only 663g, this 6+1 DoF master arm features low-friction joint actuators for a smooth, effortless operational feel. Its ergonomic end-effector grip perfectly aligns with natural finger curvature, ensuring zero hand fatigue even during prolonged motion capture and demonstrations.

12-Bit Encoders for Precise Trajectory Capture

Equipped with 12-bit magnetic encoders (0.088° resolution) across all 7 joints, it precisely captures subtle wrist and finger movements. The collected motion data is free of frame drops or jitters, providing clean trajectories that can be fed directly into imitation learning models without extra filtering.

Broad Compatibility for Multiple Follower Arms

Offers broad compatibility, seamlessly driving the Star Arm 102-FL as well as third-party follower arms (e.g., reBot B601-DM and Xinghai Tu). A single master device can control multiple execution platforms, significantly reducing hardware costs for multi-platform teleoperation.

Plug-and-Play Setup for Rapid Deployment

Operates on a compact 12V/3A power supply with direct USB serial connectivity. Features driver-free setup on Ubuntu 22.04, with simple CH340 driver deployment for Windows and macOS to get up and running within 5 minutes.

Media Gallery

Development Ecosystem

LeRobot Ecosystem Integration

Officially recognized in the Hugging Face LeRobot ecosystem as a standard teleoperation device. It allows direct collection of Hugging Face-compatible datasets without additional adapter setup, streamlining imitation learning data collection, model training, and real-world deployment for cutting-edge Embodied AI research.

ROS 2 Support

Publishes standard joint state topics for seamless integration with MoveIt 2, facilitating motion planning and robotics research.

Python SDK

Developer-friendly SDK. Install via pip and start master-slave teleoperation with one line of code in under 5 minutes.

Web-Based Control Interface

Zero-code, out-of-the-box browser control. Supports real-time teleoperation, joint angle monitoring, one-click zero-point calibration, and PID parameter tuning without any setup—enabling complete beginners to get started quickly.

Applications

Classroom Robotics

Hands-on robotic arm demos for university courses — students learn kinematics, control theory, and motion planning with real hardware.

AI Trajectory Collection

Batch-collect high-quality motion data for imitation learning and reinforcement learning — 12-bit encoders deliver clean, jitter-free trajectories.

Teleoperation Retrofit

Upgrade existing lab robotic arms with a low-cost leader-follower system — no full hardware replacement needed.

Maker & STEM Demos

Interactive robot demos for maker spaces, science fairs, and public outreach — engaging, safe, and easy to set up.

Algorithm Prototyping

Single-operator teleoperation for rapid validation of grasping, path planning, and AI robotics algorithms.

Part List

102-LD	Qty.
Screws	1
Threadlocker	1
Woodworking Clamps	2
Spare UC-01 PCB	1
XT30 Power Adapter Cable	1
200mm Servo Extension Cable	1
USB-A to USB-C Cable	1
Mouse Pad	1
Base Plate	1

Specification

Item	Star Arm 102-LD
Reach	420mm
DOF	6+1
Joint Range	Joint 1: ±110° \| Joint 2: 0°~180° \| Joint 3: 0°~270° \| Joint 4: ±90° \| Joint 5: ±65° \| Joint 6: ±150° \| Controller: 0~90°
Servos	RA8-U01H-M × 4 (Joints #1-#4) \| RA8-U02H-M × 1 (Joint #5) \| RA8-U03H-M × 2 (Joint #6 & Wrist Joint)
Protocol Type	UART
Communication Hub	UC-01
Power Supply	12V 2A / DC5521
Weight	721g
Operating Temperature	0-40℃
Works with ROS 2	✓
Works with Lerobot	✓

CAD Drawings

⛶ Full Screen

Documents

Certification

HS Code	9023009000
ECCN Code	EAR99
Country of Origin	China
Certifications	CE, FCC, RoHS

Reach	420mm
DOF	6+1
Joint Range	Joint 1: ±110° \| Joint 2: 0°~180° \| Joint 3: 0°~270° \| Joint 4: ±90° \| Joint 5: ±65° \| Joint 6: ±150° \| Controller: 0~90°
Servos	RA8-U01H-M × 4 (Joints #1-#4) \| RA8-U02H-M × 1 (Joint #5) \| RA8-U03H-M × 2 (Joint #6 & Wrist Joint)
Protocol Type	UART
Communication Hub	UC-01
Power Supply	12V 2A / DC5521
Weight	721g
Operating Temperature	0-40℃
Works with ROS 2	✓
Works with Lerobot	✓

Shipping & Delivery

We ship orders to customers worldwide. Most orders are dispatched via DHL Express to provide fast, reliable international delivery with end-to-end tracking.

Processing Time

In-stock items are usually processed within 1–3 business days after payment is confirmed.

Shipping Method

Our default international shipping method is DHL Express. Other trusted express or air services may be used when appropriate.

Estimated Delivery Time

DHL Express delivery typically takes 3–7 business days after dispatch for most international destinations.

Shipping Cost

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For large-volume or special shipments, please contact us for a shipping quotation.

Customs Duties & Import Taxes

International orders may be subject to customs duties, import taxes, VAT/GST, brokerage fees, or other charges required by the destination country/region.

Important

These charges are not included in the product price or shipping cost unless specifically stated. Customers are responsible for any applicable import duties, taxes, and customs-related fees. Please check with your local customs office before placing an order.

Order Tracking

Once your order has been shipped, we will provide a tracking number by email or through your account order details. Tracking information may take up to 24 hours to update after the shipment is collected by the carrier.

Delays & Special Situations

Delivery may be delayed due to public holidays, customs inspections, weather conditions, carrier disruptions, force majeure events, or other circumstances beyond our control.

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