Overview

The reBot Arm B601 is a fully open-source 6+1 DoF robotic arm (6 axes plus a parallel gripper) built by Seeed Studio for embodied-AI research and teleoperated data collection. A B601 follower arm is driven by CAN-based servo motors and controlled via a lightweight reBot Arm 102 (StarArm102) leader arm. Because both arms and all design files are open-source, the platform is commonly deployed as a bimanual leader-follower rig — two B601 follower arms operated by two reBot Arm 102 leaders — for two-handed manipulation and LeRobot dataset capture. Motor options: DM (Damiao) and RS (RoboStride).

Highlights

• Fully open-source 6+1 DoF arm (6 axes + parallel gripper) with published CAD, firmware, kinematics solver and URDF
• Deployable as a bimanual leader-follower rig: 2x B601 follower arms teleoperated by 2x reBot Arm 102 leader arms
• Native LeRobot integration for imitation-learning data collection, plus ROS 1/2, Isaac Sim and Pinocchio
• 767 mm reach, 1.5 kg payload, 0.2 mm repeatability per arm
• Low-cost: single-arm bundle ~$1,499 assembled / ~$1,197 kit-of-parts (pre-order, 2026)
• Two motor variants: DM (Damiao CAN motors) and RS (RoboStride motors)

Specifications