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EPFL Biorobotics Laboratory

Oncilla

A quadruped robot from Switzerland, first released 2018.

Sources retrieved: 7 September 2026 (A)

Status
Discontinued
Applications
Research and development
Indicative price
Not stated
Intended use, per the manufacturer
A versatile open-source quadruped research robot with compliant pantograph legs

50100150200 cm204060 in3112.2
EPFL Oncilla, research quadruped robot with a white lattice shell and spring legs, seen from the side, photo from EPFL BioRob
  1. Person
    175 cm68.9 in
  2. 40 cm15.7 inHeight
    31 cm12.2 in

Manufacturer's own photo.

Drawn at one scale next to a 175 cm person, from the figures the maker states: height 31 cm and length 40 cm.Drawn at one scale next to a 68.9 in person, from the figures the maker states, converted to inches: height 12.2 in and length 15.7 in.

Specifications

10/33 specifications disclosed 23 not stated

Not statedThe manufacturer states nothing about this field.NoStated: the robot does not have this.A marker with an asterisk (*) also carries a caveat.

Select a source marker for source details and notes.

Physical7/14 disclosed

Weight5.1kg11.2lbOur conversion from 5.1 kg. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.
Length40cm15.7inOur conversion from 400 mm. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.
Width25cm9.84inOur conversion from 250 mm. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.
Height31cm12.2inOur conversion from 310 mm. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.
Degrees of freedom12DoF
Payload, walkingNot stated
Payload, standingNot stated
Max speedat most 2.268km/hat most 1.41mphOur conversion from 0.63 m/s. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.
Max slopeat most 10°
Max obstacle heightNot stated
Max stair height, continuousNot stated
IP ratingNot stated
Operating temperature, lowNot stated
Operating temperature, highNot stated

Power1/5 disclosed

BatteryNot stated
Runtimeat most 30minNote: load condition not stated
Hot-swap batteryNot stated
Charge timeNot stated
Docking stationNot stated

Sensing and autonomy2/6 disclosed

LiDARNot stated
CamerasNot stated
Onboard computeNot stated
ROS 2Not stated
SDK languagesC++ Java Python Common Lisp
Autonomy featuresCentral Pattern Generator (CPG)-based gait control, open-source robot API

Payload and expansion0/3 disclosed

Mounting interfaceNot stated
Power outNot stated
Data portsNot stated

Commercial0/1 disclosed

Indicative priceNot stated

Compliance & certifications0/4 disclosed

CENot stated
FCCNot stated
ULNot stated
CCCNot stated

Against the field

Each strip holds every robot of this type in the guide that states the figure, one bar per group of values. Further right means a larger figure, not a better robot.

Height

31cm12.2inOur conversion from 310 mm. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.

89 quadrupeds state a height

Oncilla

83 state a higher figure, 2 a lower one.

Weight

5.1kg11.2lbOur conversion from 5.1 kg. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.

124 quadrupeds state a weight

Oncilla

115 state a higher figure, 4 a lower one. Log scale: each step along the axis multiplies the value.

Degrees of freedom

12DoF

76 quadrupeds state degrees of freedom

Oncilla

15 state a higher figure, 4 a lower one. 56 more state exactly the same figure.

Runtime

at most 30minNote: load condition not stated

104 quadrupeds state a runtime

Oncilla

Oncilla states an upper limit, not one figure, so it is shown open-ended and not ranked against the others.

Max speed

at most 2.268km/hat most 1.41mphOur conversion from 0.63 m/s. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.

113 quadrupeds state a top speed

Oncilla

Oncilla states an upper limit, not one figure, so it is shown open-ended and not ranked against the others.

Notes

An open-source research platform from EPFL's Biorobotics Lab, built under the EU's AMARSi project, using spring-loaded pantograph legs with a hip abduction mechanism.

Fully open hardware and software, with a three-layer API supporting C++, Python, Java and Common Lisp, and a shared interface to the Webots simulator.

Sources

One line per source, not per figure: a source has one retrieval date.

  1. Afrontiersin.org/journals/robotics-and-ai/articles/10.3389/frobt.2018.00067/fullSecondary. Retrieved 7 September 2026

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