|Output - 12||V|
|Degrees of freedom||Neck||3 (one per disk)|
|Arm - Weight||Overall||1670 g|
|Upper arm||610 g|
|Arm - Payload||500||g|
|Parallel mechanism motorized by 3 DC Maxon motors|
|Orbita Neck Joint||Ball Joint actuator|
|Head||Camera||2 Raspberry Pi cameras with 2 optical lenses|
Reachy makes AI & robotics accessible to researchers, innovation professionals, and creatives. It comes in different models to prototype and creates real-world interactive & service applications. The robot can be briefly divided into 3 sub-assemblies.
Arm Design and Control
The robotic arm is a 3d-printed, open-source project that is intended for a wide range of human interactive tasks such as greeting people with a wave, cleaning up workstations, or even playing fetch with your dog. Since the arm is open-sourced, it is completely customizable, and can be applied to multiple areas of robotics.
Reachy's upper arm is composed of 4 motors:
And depending on the hand used, usually 3 or 4 other motors. For the force gripper, you have:
Each of these motors can be controlled individually. They are servo motors that can be controlled in position. Their compliance or their torque limit can also be controlled. The motors are also behaving as a sensor, so their present position can be read at any time.
Head Design and Control
Reachy’s head features two cameras: one to observe its environment and another camera to focus on the task of manipulating. The head is animated by Orbita, a unique technology developed by Pollen Robotics’ R&D team. This ball joint actuator allows unpreceded dynamic and multi-directional movement. With animated antennas, Reachy can convey many emotions to his audience.
The head is an important part of Reachy. It's where its cameras are located and it participates a lot to the robot expressivity. The neck has 3 degrees of freedom (one per disk). When combined those 3 rotations will allow you to set a 3D orientation of the head.
Reachy's torso area includes the following elements :
Pollen robotics was founded in 2016 by Matthieu and Pierre, two former developmental robotics lab researchers from the Flowers team at French research center INRIA.
Reachy is an open-source platform and the control software and the 3D Models are available on GitHub