humanoidrobots.systems

robotis/op3 · spec sheet

ROBOTIS OP3 specs

Small 20-DOF open-platform humanoid (~51 cm, 3.5 kg) built on Dynamixel XM430 servos and an Intel NUC, with open ROS software and URDF.

Maker
ROBOTIS
Class
Humanoid
Status
Active
Availability
Buy
Country
South Korea, Seoul
Level
L2 Sim-verified
01

Media

3 items · credited and licensed
ROBOTIS OP3 studio render, three-quarter front viewrender
Studio render of the published MJCF, the model's zero pose. Geometry only; colours are the model's own materials.Rendered by Hyperspawn from mujoco_menagerie/robotis_op3 (Apache-2.0)license: Hyperspawn rendergithub.com
ROBOTIS OP3 studio render, side viewrender
Side view of the same MJCF render, the model's zero pose.Rendered by Hyperspawn from mujoco_menagerie/robotis_op3 (Apache-2.0)license: Hyperspawn rendergithub.com
4 s turntable of the MJCF studio render.Rendered by Hyperspawn from mujoco_menagerie/robotis_op3 (Apache-2.0)license: Hyperspawn rendergithub.com
02

Specifications

7/12 fields sourced
ROBOTIS OP3 specifications
Heightspecs.heightCm51cm
Massspecs.massKg3.5kg
Degrees of freedomspecs.dof20
Payloadspecs.payloadKgunsourced
Top speedspecs.speedMpsunsourced
Runtimespecs.runtimeMinunsourced
Battery capacityspecs.batteryWh36.6Wh
Pricespecs.priceUsdunsourced
Actuatorsspecs.actuators20x Dynamixel XM430-W350-R
Computespecs.computeIntel NUC i3, 8GB RAM
Sensorsspecs.sensorsLogitech C920 camera, 9-axis IMU
Year introducedyearunsourced
Licenselicense.hw / .sw / .docsSoftware: Apache-2.0

Note · Battery 11.1V 3300mAh LiPo (~36.6 Wh computed). e-Manual notes a 2025 ROS 2 re-release. Original release year and CAD availability not verified in fetched sources.

03

Openness

method
45 / 100Partly open
ArtifactPublicWeightPoints
CADopenness.cadno250
Bill of materialsopenness.bomno200
Sim model (URDF/MJCF)openness.simyes2020
Firmwareopenness.firmwareyes1515
Softwareopenness.softwareyes1010
Trained policiesopenness.policiesno100
score = Σ weight × public45
04

Models, repositories, links

7 links
05

Videos

2 tagged · 0 from the maker's channel
[ROBOTIS OP3] 두발로 걷는 로봇(ROBOT) 휴머노이드ROBOTISOfficial embedyoutube.comROBOTISROBOTIS OP3
ROBOTIS OP3 Read Write DemoROBOTISOfficial embedyoutube.comROBOTISROBOTIS OP3
06

News and papers

0 stories · 0 papers

News mentioning ROBOTIS OP3

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Papers using ROBOTIS OP3

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07

Sources

last checked 2026-09-24
  1. [1]ROBOTIS e-Manualemanual.robotis.com/docs/en/platform/op3/introduction/checked 2026-09-24
  2. [2]Official repogithub.com/ROBOTIS-GIT/ROBOTIS-OP3checked 2026-09-24
08

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Cite this page

humanoidrobots.systems. “ROBOTIS OP3 specs.” Hyperspawn, data revision 2026-10-08. https://humanoidrobots.systems/robotis/op3

Machine-readable: /data.json (record robotis/op3).