StarAI Arm ยท Viola | Follower
$499.00
In stockStarAI Arm Viola is a factory-ready follower arm for manipulation, built to pair seamlessly with Violin (Leader) for teleoperation and demonstration-based workflows. It comes with ROS 2 / MoveIt / Gazebo integration, full Isaac Sim support, and Hugging Face LeRobot compatibility to streamline data collection and trainingโright out of the box.
Related Products
PIPER Mate | Leader
$415.00
Star Arm ยท 102-FL | Follower
$339.00
Star Arm ยท 102-LD | Leader
$199.00
StarAI Arm ยท Violin | Leader
$499.00
StarAI Arm ยท Cello | Follower
$1,599.00
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
6+1 DOF โ More Ways to Move
An additional joint unlocks flexible configurations so your robot can reach hardโtoโaccess areas, avoid obstacles with ease, and maintain smooth, consistent motion. The expanded inverse kinematics solution space significantly boosts the success rate of motion planning and control, improving efficiency in realโworld applications.
Dual Brushless Key Joints
Powered by 50kg brushless servos on two primary joints for stronger torque output and precise motion control.
No Calibration, Ready to Learn
Preconfigured at the factoryโno calibration and no servo parameter tuning required. Just unbox, plug in, and start manipulating right away.
One-Button Hover Hold
The Leader Arm (Violin) handle includes a dedicated button. Press it to hold the arm at any position instantly. Great for quick pauses, fine adjustments, and capturing key moments during demonstrations.
Parallel Gripper (Replaceable Fingertips)
Parallel gripper with a 65 mm opening and a linear rail design for smooth, precise motion. Open-source, 3D-printable fingertips allow for easy customization of the grip for various objects.
Metal Frame + 3D-Printed Structure
A rigid metal frame combined with reinforced 3D-printed structural components, featuring needle roller bearings at key joints for smooth, accurate, and repeatable motion. Designed to maintain stable positioning under load.
Media Gallery
Specification
| ย Item |
Viola |
|---|---|
| Reach | 470mm |
| DOF | 6+1 |
| Repeatability | 2mm |
| Accuracy | 5-8mm |
| Working Payload | 300g |
| Joint Range | Joint 0: ยฑ123ยฐJoint 1: 0ยฐ~180ยฐJoint 2: 0ยฐ~187ยฐJoint 3: -65ยฐ~100ยฐJoint 4: -65ยฐ~100ยฐJoint 5: ยฑ147ยฐGripper: 0~70mm |
| Servos | RX8-U50H-M x 2RA8-U25H-M x 4RA8-U26H-M x 1 |
| Communication Hub | UC-01 |
| Power Supply | 12V10A/120w XT30 |
| Weight | 1.15kg |
| Parallel Gripper Kit | โ |
| Works with ROS 2 | โ |
| Works with MoveIt | โ |
| Works with Gazebo | โ |
ROS 2
Allows setting the current position as the origin (0ยฐ) in free mode, enabling easy zero calibration and providing a reference start for subsequent motions.
MoveIt Motion Planning
Plan safe, collision-aware trajectories and execute complex manipulation moves with ease.
Intuitive Control GUI
A streamlined interface for fast setup, real-time monitoring, and efficient everyday operation.
Drag-to-Teach Demonstration
Teach motions by hand and record precise, repeatable trajectories reliably in just seconds.
Gazebo Simulation Ready
Test, iterate, and validate complete workflows in realistic, physics-based simulation environments.
Lerobot
- Fully compatible with Hugging Face LeRobot, aligned with the latest PyTorch tooling
- All integration code is open-source
- Complete unbox โ teleop โ record โ dataset โ train workflow documentation
- Supports LeRobotDataset (v3) and optional Hugging Face Hub dataset versioning/sharing
- Start training with just one personal computer, no extra infrastructure required
Isaac Sim
- Includes ready-to-use USD assets for the StarAI Arm in Isaac Sim
- Fully compatible with the Isaac Sim simulation environment
- Enables ROS 2 bridging between the real robot and Isaac Sim for synchronized control and state feedback
- Supports teleoperation workflows between physical hardware and the Isaac Sim robot model
CAD Drawings
Documents
Certification
| HS Code | 9023009000 |
| ECCN Code | EAR99 |
| Country of Origin | China |
| Certifications | CE, FCC, RoHS |
Part List
| Viola | Qty. |
|---|---|
| Robotic Arm Main Body | 1 |
| Robotic Arm Gripper | 1 |
| Packaging Box | 1 |
| Robotic Arm Screw Kit | 1 |
| C Fixture | 1 |
| Color Blocks | 1 |
| UC-01 Debug Adapter Board | 2 |
| Product Series | StarAI Arm |
|---|---|
| Reach | 470mm |
| DOF | 6+1 |
| Repeatability | ยฑ2mm |
| Accuracy | 5-8mm |
| Working Payload | 300g |
| Joint Range | Joint 0: ยฑ123ยฐ | Joint 1: 0ยฐ~180ยฐ | Joint 2: 0ยฐ~187ยฐ | Joint 3: -65ยฐ~100ยฐ | Joint 4: -65ยฐ~100ยฐ | Joint 5: ยฑ147ยฐ | Gripper: 0~70mm |
| Servos | RX8-U50H-M x 2 | RA8-U25H-M x 4 | RA8-U26H-M x 1 |
| Communication Hub | UC-01 |
| Power Supply | 12V 10A / XT30 |
| Weight | 1.15kg |
| Parallel Gripper Kit | โ |
| Works with ROS 2 | โ |
| Works with MoveIt | โ |
| Works with Gazebo | โ |
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 1โ3 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 3โ7 business days after dispatch for most international destinations.
Shipping Cost
Shipping costs are calculated based on the destination, package weight, dimensions, and selected shipping method. The final shipping cost will be shown at checkout before payment.
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.
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.
