The reBot Arm B601-DM is a 6+1 DoF tabletop robotic arm — six Damiao joint actuators plus a parallel gripper. 767mm reach, 1.5kg payload, 0.2mm repeatability. About 4kg, runs on 24V. $1,197 for the full DIY bundle, shipping April 24.
No onboard computer. You plug the USB-CAN driver board into a host PC or an NVIDIA Jetson. Keeps the price down and lets you pick your own brain.
Hardware is fully open, brackets included
Hardware blueprints, full BOM, CAD, firmware, Python SDK — all on GitHub. The v1.0 BOM is explicitly tuned so developers can 3D-print or CNC the non-motor parts at the lowest possible cost. Motor kit ships with three Damiao 4310 and three 4340P actuators.
APIs that matter for AI agents
Native Python SDK (Motorbridge), ROS 1/2 Humble with MoveIt2, NVIDIA Isaac Sim, and Pinocchio dynamics all ship on day one. Hugging Face LeRobot integration lands late April.
An AI agent reads joint states and pushes end-effector targets over Python or a ROS topic. Two typical loops: train a LeRobot policy in Isaac Sim and deploy it to the real arm, or wire a VLA model straight to the SDK for desktop grasping experiments.
Why it’s trending right now
Adafruit wrote it up April 14. CNX Software ran a deep dive on April 17 and it hit Hacker News’ front page the same day. The LeRobot crowd is treating it as the cheapest serious hardware base for running GR00T-class policies — a slot Hugging Face’s SO-ARM101 can’t fill at this precision.
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