Hello Robot Stretch 3 · Hello Robot
Joints and end effectors that produce the action vector recorded in datasets.
Telescoping arm
×1Belt-driven prismatic
520 mm extension
Lift
×1Ball-screw prismatic
1.1 m vertical travel
Dex Wrist 3
×3Rotary wrist
yaw, pitch, roll
Gripper
×1Compliant two-finger
soft grasping
Differential base
×2Wheeled drive
0.6 m/s
The drive units inside those joints, with torque and reduction details.
Stepper motors with encoders
Hybrid stepper
lift, arm and base, current-limited compliance
Dynamixel wrist servos
Smart servo
Dex Wrist 3 and gripper
Observation streams available to a policy running on this platform.
Intel RealSense D435if
Depth camera
head pan-tilt, IR-cut variant
Wrist camera
RGB fisheye
added in Stretch 3
RPLIDAR A1
2D LiDAR
base navigation
Base IMU
9-axis
odometry fusion
Lightweight mobile manipulator designed for real homes; used in DobbE and BEHAVIOR-style in-home datasets.
Resolving related models, datasets and papers…
Source: Google DeepMind Robotics
Source: Google DeepMind Robotics
Source: NYU General-purpose Robotics & AI Lab
Source: UC Berkeley RAIL