We're excited to announce our second release of OpenArm 01, an update focused on improving the hardware reliability, teleoperation stack, assembly clarity, and vendor transparency. This release addresses multiple community-reported issues and feedback:
🚀 Summary of Fixes and Improvements
| Category | Improvement | Problem | Solution | Issue |
|---|---|---|---|---|
Controls |
Zero-position Calibration | Manual calibration process was prone to human errors. | Implemented automated zero-position calibration to simplify setup and improve accuracy. | #323 |
Data Collection |
Camera Mount | No official CAD for camera mounts. Users had to design their own mount for Realsense cameras. | Added a modular camera mount base with standard mounts designed for Realsense D435 (chest camera) and D405 (wrist camera), enabling consistent and reproducible data collection setups. | #307 |
Hardware |
Leader-side J5 Casing Cover | For 7-DoF arms, controlling the elbow was difficult — the operator could only manipulate the end effector, causing ambiguity from redundant joint angles. | Redesigned the J5 casing and added a rubber band interface, improving coupling between operator and arm for smoother 7-DoF motion control. The elbow can now follow the operator's motion naturally. | #308 |
Hardware |
Enhanced J2 Wiring and Cover | J2 motor cables frequently got caught on the bolt heads of the L-shaped J2–J3 connector, risking damage and restricted motion. | Re-routed J2 wiring directly out through the rear backplate and modified the cover design to eliminate snag points, improving reliability and cable lifespan. | #309 |
Hardware |
PCB Hub Case | PCB hub was previously exposed, leaving connectors vulnerable to stress and disconnection during operation. | Added a dedicated PCB hub enclosure that protects connectors, improves mechanical stability, and simplifies cable organization. | #310 |
Docs |
Wiring & Casing | Assembly instructions for wire harnessing were unclear, causing confusion about cable routing and casing order. | Added step-by-step assembly visuals, diagrams, and improved explanations for wire routing and casing installation. | #312 |
Docs |
Purchase Page | Users faced confusion due to multiple vendors producing OpenArm at varying quality levels, with no clear guidance on where to buy. | Introduced an official Purchase Page listing Official and Certified vendors worldwide to ensure transparency and consistent manufacturing quality. | #313 |
💬 Feedback
We'd love your feedback!
If you encounter any issues or have suggestions, please open an issue or start a discussion on our Discord server.
Thank you for being part of the OpenArm community.
Your continued testing, feedback, and collaboration make this project better with every release.
OpenArm team