Open Duck Mini vs ToddlerBot

Open-source bipeds and humanoids

Open Duck Mini is an open-source 16-DoF biped robot under the Apache-2.0 hardware license, published at €398.10 (source total, base robot per the BOM sheet). ToddlerBot is a 30-DoF humanoid robot under the CC-BY-NC-SA-4.0 hardware license (non-commercial), published at $5,727.94 (source total, 2XC essentials, tools excluded). Reproducibility scores: ToddlerBot 70 and Open Duck Mini 63 of 100. Open Duck Mini publishes URDF; ToddlerBot publishes MJCF and Onshape.

Change the robots in the atlas

Drawn to scale

The robots side by side at their true relative size, as their source models are posed.

20 cmOpen Duck Mini518 mm tallToddlerBot538 mm tall20 cmOpen Duck Mini518 mm tallToddlerBot538 mm tall
Specimen renders from each project's source files, scaled so a meter is the same length for every robot (measured at each model's center: the renders are perspective views, so the scale is exact there). Heights are the models as posed in their sources.

Side by side

Every figure is read from each robot's record, with its source; a cost keeps the currency the source states and its basis.

Open Duck Mini vs ToddlerBot, compared
CriterionOpen Duck Minibiped robotToddlerBothumanoid robot
Published cost€398.10source total, base robot per the BOM sheetsource$5,727.94source total, 2XC essentials, tools excludedsource
Degrees of freedom16legs 10, antennas 2, headNeck 4source30
TypeBipedBipedHumanoidHumanoid
Actuators in the BOM
Boards in the BOM
Simulation models
Hardware licenseApache-2.0Commercial use OKsourceCC-BY-NC-SA-4.0Non-commercialsource
LifecycleActivesourceActivesource
Reproducibility63/100Partial source coverage, unverifiedCADBOMWIREFWBUILDLICREP70/100Partial source coverage, unverifiedCADBOMWIREFWBUILDLICREP
CAD / mesh presentpartial10/20met20/20
BOM evidencepartial10/20partial10/20
Wiring diagrammet15/15met15/15
Firmware linkedmet10/10met10/10
Build instructionspartial7.5/15met15/15
OSHW-compatible licensemet10/10missing0/10
Known reproductionsmissing0/10missing0/10
Build timeNot publishedNot published
Model size255 × 518 × 246 mmwidth × height × depth, as modelled175 × 538 × 262 mmwidth × height × depth, as modelled
Sourceapirrone/Open_Duck_Minihshi74/toddlerbot

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