A2 Compliant Arm: A Dexterous Manipulator to Work With People
The Meka A2 Compliant Arm is a lightweight seven degree-of-freedom force controlled arm. Designed to match the size and shape of a small adult, it is the ideal platform for researchers interested in manipulation for human environments.
The A2 nearly matches the scale and workspace of a human arm. It features high-strength force-controlled actuators, intrinsic physical compliance, zero-backlash Harmonic Drive gearheads, and the Meka M3 real-time manipulation control system.
The A2 is available as a single arm or as a bimanual manipulator. It provides plug-and-play support for the T2 Humanoid Torso, S2 or S3 head, and the G2 or H2 hand.
Features
- 7 DOF Series Elastic Actuators
- Near human workspace
- Torque control at every joint
- Singularity free Roll-Pitch-Yaw wrist
- Absolute encoders for calibration free operation
- EtherCAT control bus
- Meka M3 and ROS software stacks
- Optional 6 axis Force-Torque sensor
| DOF | 7 |
|---|---|
| Interface | M3 EtherCAT |
| Power | 24V@20A peak |
| Weight (bimanual) | 20.3 Kg |
| Weight (single arm) | 11.4 Kg |
| Payload | 2 Kg |
| Angular Resolution | .022 degree |