Legged-platform technical dossier · 01

Barkour vB: reading a high-energy open quadruped as a complete system

Connect mechanical CAD, custom actuators, electronics, cable drawings, firmware, EtherCAT control, assembly records and simulation without confusing completeness of disclosure with product readiness.

Evidence statusUnusually complete research release · high-energy experimental platform · commercial hardware rights restrictedSources checked 4 August 2026

Identify platform and generation first

A project name cannot replace exact mechanical, electrical, firmware and simulation revisions.

Barkour is a Google DeepMind research platform for agile quadruped studies. The public repository currently describes the vB generation, with fixed-head and actuated-head variants, and separately links older v0 assets. It explicitly states that the release is not an official Google product.

Engineering asset map

Put mechanism, electronics, actuation, control and simulation back onto one system map.

01

Mechanics & assembly

Publicly available

CAD for fixed- and actuated-head variants, BOM, robot, actuator, linkage and cover assembly guides.

Verify before adoption

Freeze vB versus v0, variant, CAD revision, materials, processes, tolerances, bearings, fasteners and every substituted part.

02

Electronics & cables

Publicly available

Schematics, PCB layout outputs, custom cable drawings and wireless safe-torque-off assembly material.

Verify before adoption

Recheck component availability, creepage, protection, connector ratings, wiring inspection and the exact stop chain on the as-built robot.

03

Actuation & control

Publicly available

Custom motor-driver firmware, actuator setup, EtherCAT configuration and host-side control examples.

Verify before adoption

Characterise current, voltage, torque, speed, thermal limits, bus-loss behaviour, watchdogs and recovery under the exact firmware revision.

04

Simulation & learning

Publicly available

MuJoCo model and an MJX path for accelerated policy training.

Verify before adoption

Identify mass, inertia, contact, actuator and latency assumptions before any sim-to-real claim.

Layered licence reading

Code, drawings, PCBs, models and vendor parts may carry entirely different rights.

Asset layerKnown statusAdoption decision
Software

The repository states that software is Apache-2.0.

Preserve notices, pin commits and inspect imported or linked dependencies separately.

CAD, electronics and other materials

The repository states that non-software materials are CC BY-NC 4.0.

The public licence does not grant commercial use. A commercial product path requires separate rights clearance or independently developed assets.

Third-party parts & tools

Vendor parts, CAD platforms, EtherCAT components and toolchains retain separate terms.

Confirm access, export, redistribution, trademark, warranty and supply conditions layer by layer.

Research outputs

Paper, videos, trained policies and datasets are not automatically covered by the repository software licence.

Use only explicitly released assets under their stated terms and cite the research separately.

This table is a source-navigation and engineering-decision aid, not legal advice. Use original licence texts and qualified advice for an actual decision.

High-energy system validation gates

From one actuator to dynamic gait, expand energy and motion envelopes one controlled gate at a time.

  1. 01

    Energy architecture review

    Evidence to preserve

    Power tree, actuator limits, stored-energy inventory, fusing, isolation, safe-torque-off path and remote-stop test.

    Stop condition

    No powered motion until independent stop and energy-isolation functions are proven on the actual build.

  2. 02

    Static subsystem validation

    Evidence to preserve

    Joint range, structure, cable routing, actuator calibration, thermal soak and communication-fault tests on fixtures.

    Stop condition

    Stop on uncontrolled torque, unexpected restart, overheating, damaged cables or inconsistent sensors.

  3. 03

    Protected locomotion

    Evidence to preserve

    Tether or support, exclusion zone, low-energy gait, fall envelope, logs and a rehearsed recovery procedure.

    Stop condition

    Do not progress to dynamic motion if a fault can leave the protected envelope.

  4. 04

    Task-bounded evaluation

    Evidence to preserve

    Declared terrain, payload, speed, duration, trial count, interventions, failures and maintenance state.

    Stop condition

    A research demonstration cannot support public-space, consumer or unattended-use claims.

FUURAA analysis

The value of open material is knowing what the engineering team must prove next.

01

Best use

Studying the integration of mechanism, custom actuation, electronics, safety-stop architecture, embedded control and simulation in one research platform.

02

Main risk

The release looks unusually complete, which can obscure the non-commercial hardware licence and the gap between buildability and safe, repeatable operation.

03

FUURAA judgement

Use Barkour as a systems-engineering reference and evidence checklist. For commercial work, separate learning from implementation and establish an independently cleared architecture.

Applicability boundary

A research platform can teach evidence-building; it does not automatically become a saleable product.

Can support

  • Research-system architecture comparison
  • Actuator, electronics and simulation integration studies
  • A protected, bounded laboratory prototype programme

This page cannot replace

  • Commercial rights to the non-software materials
  • Independent electrical, machinery and functional-safety assessment
  • Reliability, field-service and product certification evidence
Continue into the robot product development pathFrom energy architecture and verification to controlled release →