Star Arm 102-FL (Follower)
$339.00
In stockStar Arm 102 is an open-source, low-cost 6+1 DoF Leader robotic arm for education, research, and developer applications. It is available as a complete unit or a DIY kit.
It supports direct remote operation on bare hardware, is compatible with LeRobot and ROS2, and covers the full workflow from data collection and simulation to training and deployment.
The LD model is also compatible with FL, reBot, and other similarly configured arms, enabling fast and cost-effective remote operation setup.
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Overview
6+1 Degrees of Freedom · Complete Kinematics
6 active joints + 1 end effector.
Joint configuration strictly follows the Pieper criteria, supporting analytical inverse kinematics. Transparent algorithms make it easy for teaching and secondary development.
Open-Source · Low-Cost · Easily Accessible
Available in two purchase options: pre-assembled ready-to-use unit or DIY kit for hands-on assembly—perfect for teaching and practical experimentation.
Multi-Platform Compatible · Plug & Play
Deeply compatible with LeRobot and ROS2 ecosystems.
Covers the full workflow of real robotic applications: data collection → simulation → model training → real-world deployment.
Comprehensive Learning Resources
Ideal for university courses, research labs, and self-learning developers.
LD Model: Highly Compatible Master Arm
It is also directly compatible with reBot and other arms with similar configurations.
One master arm can control multiple arms, significantly reducing the cost and complexity of building a remote operation system.
Part List
|
Violin |
Qty. |
|---|---|
|
Threadlocker |
1 |
|
Woodworking clamp |
2 |
|
Spare PCB (UC01) |
1 |
|
DC Power Pigtail (5.5×2.5mm Jack) |
1 |
|
USB-A to USB-C Cable |
1 |
|
200mm Servo Lead Wire |
1 |
|
No. 7 Screw Set |
1 |
|
No. 8 Screw Set |
1 |
|
No.9 Screw Set |
1 |
|
Mouse Pat |
1 |
Specification
|
Item |
Star Arm 102-FL |
|---|---|
|
Reach |
420mm |
|
DOF |
6+1 |
|
Repeatability |
±0.5mm |
|
Working Payload |
300g |
|
Joint Range |
Joint 1: ±110° | Joint 2: 0°~180° | Joint 3: 0°~270° | Joint 4: ±90° | Joint 5: ±65° | Joint 6: ±150° | Gripper: 0~90° |
|
Servos |
RA8-U35H-M × 4 (Joints #1, #4, #7 & Gripper Joint) | RX8-U50H-M × 1 (Joint #2-3) | RA8-U27H-M-C005 × 2 (Joints #5) | RA8-U35H-M-C047 (Joints #6) |
|
Protocol Type |
UART |
|
Communication Hub |
UC-01 |
|
Power Supply |
12V 10A / XT30 |
|
Weight |
791g |
|
Operating Temperature |
0-40℃ |
|
Works with ROS 2 |
✓ |
|
Works with Lerobot |
✓ |
|
Works with MoveIt |
✓ |
|
Works with Gazebo |
✓ |
ROS 2
Allows setting the current position as the origin (0°) in free mode, enabling easy zero calibration and providing a reference start for subsequent motions.
Lerobot
- Fully compatible with Hugging Face LeRobot, aligned with the latest PyTorch tooling
- All integration code is open-source
- Complete unbox → teleop → record → dataset → 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
CAD Drawings
Documents
Certification
|
HS Code |
9023009000 |
|
ECCN Code |
EAR99 |
|
Country of Origin |
China |
|
Certifications |
CE, FCC, RoHS |
| Reach | 420mm |
|---|---|
| DOF | 6+1 |
| Repeatability | ±0.5mm |
| Working Payload | 300g |
| Joint Range | Joint 1: ±110° | Joint 2: 0°~180° | Joint 3: 0°~270° | Joint 4: ±90° | Joint 5: ±65° | Joint 6: ±150° | Gripper: 0~90° |
| Servos | RA8-U35H-M × 4 (Joints #1, #4, #7 & Gripper Joint) | RX8-U50H-M × 1 (Joint #2-3) | RA8-U27H-M-C005 × 2 (Joints #5) | RA8-U35H-M-C047 (Joints #6) |
| Protocol Type | UART |
| Communication Hub | UC-01 |
| Power Supply | 12V 10A / XT30 |
| Weight | 791g |
| Operating Temperature | 0-40℃ |
| Works with ROS 2 | ✓ |
| Works with Lerobot | ✓ |
| Works with MoveIt | ✓ |
| Works with Gazebo | ✓ |
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.
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.
