QuadrupedBy Marcel3245Sources reviewed Nov 1, 2026

Robot-dog

A 3D-printed quadruped with 12 servos and Raspberry Pi control, with walking, pitching and starting-position modes.

Project documentation

Before you build

Five answers, each linked to its source

What does it cost?

Not documented

No cost in the reviewed sources.

Can I sell what I build?

Check firstCheck before commercial use

Hardware not documented · Software not documented. Licensing source

What’s open?

2 of 6CAD: AvailableBOM: PartialPCB: Not documentedCode: PartialSim: Not documentedGuide: Available

BOM, code partial · PCB, sim not documented. All six files

What does it run on?

Raspberry PiPython

Simulation: Not documented. Software

Is it maintained?

Not documented

No activity snapshot yet. Activity

01 / Under the shell

The specifications.

Hardware, build and software on one sheet. Every fact links to where we found it.

Robot-dog is a 3D-printed quadruped assembled from printed parts and external components. Its bill of materials lists 12 servos, a Raspberry Pi 4B and a PCA9685 servo controller. The README describes walking, pitching and starting-position modes, and links to a Thingiverse 3D model.

Hardware

Actuators
12 · Servos README
Build
3D-printed · 0.2 mm quality · 0.4 mm nozzle Documentation
Servos
12 README
Robot parts
21 README

Building it

Printing settings
0.2 mm quality, 0.4 mm nozzle, adhesion and support on README
Servo calibration
Calibrate the servos to their starting positions before mounting parts. README
Assembly
The README describes assembling four legs and mounting servos to the body. README

Software & simulation

Movement modes
Walking, pitching and starting position README
Walking gait
The walking function uses a Bézier curve for the foot path. README

02 / The files behind the robot

What’s open.

Six parts of the build, each checked separately. Gaps stay visible.

Availability of build files
PartStatusWhat’s thereLicenseSource
CADAvailableThe README links to a Thingiverse 3D model.Not documentedthingiverse.com
Bill of materialsPartialThe README lists external parts and quantities.Not documentedREADME.md
ElectronicsNot documentedNot documentedNot documentedNo source found
CodePartialThe README refers to a servo calibration script in the repository.Not documentedRobot-dog-code/
Simulation modelNot documentedNot documentedNot documentedNo source found
Assembly guideAvailableThe README includes assembly instructions.Not documentedREADME.md

03 / Know before you build

Can you sell it?

Check firstCheck before commercial use

No license was found for the design files, so no reuse rights are granted. Ask the maker before building anything to sell.

Hardware
Not documented
Software
Not documented
Read the licensing source

04 / The upstream project

Is it maintained?

marcel3245/robot-dog

Not documentedRepository activity is not documented

Active: activity within 90 days of the snapshot. Quiet: within a year. Dormant: longer.

05 / Parts & kits

A head start.

Maker-listed sellers only. No affiliate links or paid placement.

MAKER’S COST

Not documented

No cost in the reviewed sources.

Kit availability is not documented in our reviewed sources.

06 / Side by side

Compare with other quadrupeds.

Other quadrupeds in the directory, most recently active first. Same sources, same rules.

Robot-dog compared with Spot Micro - Leika, Physical Ant, Sesame
RobotCostOpen filesCan I sell it?Runs onMaintainedStars
Robot-dogThis robotMarcel3245Not documented2 of 6Check firstHW not documented · SW not documentedRaspberry PiPythonNot documented—
Spot Micro - LeikaRune HarlykNot documented4 of 6YesHW MIT · SW MIT LicenseESP32MuJoCoActiveOct 29, 202692
Physical AntOpenmind-Research-Institute$2,230.61BOM total4 of 6YesHW MIT · SW MITPythonMuJoCoActiveOct 29, 202676
SesameDorian ToddNot documented6 of 6YesHW Apache-2.0 · SW Apache-2.0ESP32ArduinoPythonActiveOct 15, 20264,876
Robot-dog compared with Spot Micro - Leika and Physical Ant
This robotRobot-dogSpot Micro - LeikaPhysical Ant
Cost
Not documentedNot documented$2,230.61
Can I sell it?
Check firstYesYes
Open files
2 of 64 of 64 of 6
Runs on
Raspberry Pi, PythonESP32, MuJoCoPython, MuJoCo
Maintained
Not documentedActiveOct 29, 2026ActiveOct 29, 2026

Upkeep is measured against each robot’s own snapshot. Costs keep the maker’s scope, so check what each figure covers.

See them in the table

07 / Follow the evidence

Open books.

Repository files are pinned to commit 8cff91b. Websites and papers are listed with their review dates.

  1. 01README.md at 8cff91bReviewed Nov 1, 2026
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