OP3

ROBOTIS · 2017

~$12,000 – $13,800robotis.us $13,764 (sold out); RobotLAB quote
Out of stockZMP / IK gaitZMP textbookROS 2Research / RoboCup
Weeks+Shipping: Quote / weeks+. Sold out on robotis.us (ships from California when stocked); RobotLAB sells by quote. ROBOTIS US ↗

Overview

The classic research humanoid for learning ZMP/LIPM walking with full source. But it costs about 15× an AiNex for a similar size and walking style, and it's sold out in the US. Today's RL bipeds beat it on balance.

Specifications

CategoryBipeds · Walks, but doesn't really balance
Released2017
AvailabilityOut of stock
ProgrammabilityOpen source (hardware + software)
Best forProfessionals & labs
Vision sensorsCamera
ActuatorsSmart servos (Dynamixel, Feetech…)
AudioMicrophone
Compute typex86 PC (Intel / AMD), Arduino / ESP32 / microcontroller
Balance typeZMP / IK gait
Height51 cm
Weight3.5 kg
ComputeIntel NUC i3 + OpenCR
Speed0.24 m/s
DOF20 Dynamixel
SensorsIMU, Logitech C920 camera, mics
BalanceZMP preview-control walking on a linear inverted pendulum with gyro feedback; handles small disturbances but isn't push-robust (falls, then gets up).
SDKROS / ROS 2, C++, Dynamixel SDK; open CAD

Ratings & reviews

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