Robotics

Folding Bicycle

Full Size Folding Bicycle

Michael Sutherland and his team at Zennen Engineering designed…
Target Profiles for Morphing Linkage

Actuating Morphing Linkages

Lawrence Funke and Prof. James Schmiedeler of the University…
Virgo 2 SUTD

Rolling Robot at SUTD

Virgo 2 SUTD A research team including Profs. GimSong Soh,…
An Interesting Planar Robot at Laval

An Interesting Planar Robot at Laval

Students of Prof. Clement Gosselin at the Laval University Robotics…
Tensegrity Robotics at UC Berkeley

Tensegrity Robotics at UC Berkeley

Students in Professor Alice Agogino’s Berkeley Emergent Space…
Fourbar Extrusion

A four-bar linkage provides a shape changing extrusion die

Fourbar Extrusion Prof. Andrew Murray and his team at the…
Rescue Robotics

Patches for the Energy Invitational and Rescue Robotics Challenge

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This is the participant patch for the 2015 Energy Invitational…
Leg Mechanisms

Walking Machines

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Leg Mechanisms An outcome of Mark Plecnik's research on the…
Another version of the six-bar folding linkage

Another version of the six-bar folding linkage

This is a little more compact version of the six-bar folding…
Six-bar linkage folds a structure

Six-bar linkage folds a structure

This six-bar linkage was designed to deploy and stow a structure.…
Eight-bar Port Closure Tool

Eight-bar Port Closure Tool

This port closure tool curls back on itself to provide internal…
Four-bar function generator

Four-bar function generator: Open a door

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Select this link, Four-bar linkages, for a Geogebra book…
Introduction to Linkages

Introduction to Linkages

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Please select this link to open the Geogebra Book containing…

JPL’s ATHLETE Rover Walks, Rolls, and Slides

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The ATHLETE Rover is a mixture of a wheeled rover and a walking…
Linkage Design for Wing Flapping

Linkage Design for Wing Flapping

Mark Plecnik shows that six-bar function generators can be used…
Disney Prototyping System

Linkage Synthesis at Disney Research Zurich

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Researchers at Disney Research Zurich provide yet an other design…
Demining Training Aids

3D Printed Demining Training Aids

Training people to diffuse landmines and other live ordnance…

Wearable Robotics Put Spring in Your Step

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Wearable electronics or “wearables” are seen as the next…
21st Century Kinematics

Workshop on 21st Century Kinematics

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The NSF Workshop on 21st Century Kinematics at the 2012 ASME…
Eight-bar motion amplifier

Eight-bar motion amplifier

Kaustubh Sonawale and Yang Liu worked together on this design…
Rectilinear Suspension

Rectilinear eight-bar suspension

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This is a design concept for a rectilinear eight-bar suspension.…
Rectilinear Eight-bar

Rectilinear eight-bar linkage

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This animation was prepared by Yang Liu for a linkage designed…
Rectilinear Link

Six-bar linkage with rectilinear moving link

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This is an animation of a Watt I six-bar linkage with a translating…
Kinematics and Polynomials

Kinematics and Polynomials–available on a Mac

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Until yesterday, my iBooks Introduction to Theoretical Kinematics…
Mechanical Characters

Mechanical characters

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Disney Research guides two degree-of-freedom open chains using…
Six-bar linkages

Six-bar Linkage Design for Mechanical Computation

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Our paper Numerical Synthesis of Six-bar Linkages for Mechanical…
Ballistic Function

Mechanization of the ballistic function

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This Stephenson III six-bar linkage sets the elevation of…
Waldron Celebration

Waldron Fest: May 16-17, 2013

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This poster was prepared as a gift to Ken Waldron on his…
Retractable handle

Retractable handle

This six-bar linkage was developed at the request of a designer…
Tensegrity Linkage

Tensegrity Linkage

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This is a design concept that uses tensegrity beam elements…
Introduction to Theoretical Kinematics

Introduction to Theoretical Kinematics

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My 1990 book is now on-line as an iBook. It is available…
Kempe Linkages

Translational Linkages from Kempe

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These linkages guide a platform in straight-line translation.…
Kassim Car Door

An RSSR-TS Car Door Linkage

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Kassim Abdul-Sater provides this CATIA animation of a spatial…
Spherical Car Door Linkage

Spherical Watt I six-bar up close

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This view shows the operation of the spherical Watt I six-bar…
Spherical Car Door

Spherical Watt I six-bar linkage

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The movement of this car door is guided by a spherical Watt I…
Six-bar Function Generator

Stephenson II six-bar linkage function generator

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Mark Plecnik designed this Stephenson II function generator by…
Plecnik Art

Mark Plecnik’s Art Project

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Mark Plecnik designed this system to illustrate the movement…
Cameron Turner’s Wheelbarrow Linkage

Cameron Turner’s Wheelbarrow Linkage

Cameron Turner designed a four-bar and a six-bar linkage to assist…
Aileron Linkage

Colin Sledge’s Aileron Linkage

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Colin Sledge designed this linkage to guide an airfoil section…
Brendan Smith’s Monitor Linkage

Brendan Smith’s Monitor Linkage

Brendan Smith designed this six-bar linkage to guide a big-screen…

Micro-linkages for Compliant Material

Material Unit Cell

Material Unit Cell

Lucas Shaw and Prof. Jonathan Hopkins show the micro-architecture of an actively compliant material. Micro-actuators within the unit cells of an assembly are coordinated to reshape the assembly as desired. This was presented as part of the 2015 ASME Design Engineering Technical Conferences in Boston, MA, August 2-5. The video below shows what this assembly can do.

[youtube]https://www.youtube.com/watch?v=pPXMtlP_OAQ[/youtube]



Actuating Morphing Linkages

Target Profiles for Morphing Linkage

Target Profiles for Morphing Linkage

Lawrence Funke and Prof. James Schmiedeler of the University of Notre Dame Locomotion and Biomechanics Lab show that the movement of a morphing linkage through its target profiles can be improved by coordinating actuation of the sub-chains. This was presented at the Mechanisms and Robotics Conference which was part of the 2015 ASME Design Engineering Technical Conferences, August 2-5, in Boston, MA. The video below shows the improvement obtained by moving from 1 to 3 coordinated actuators.
[youtube]https://www.youtube.com/watch?v=r3DwHyRAh08[/youtube]


Rolling Robot at SUTD

Virgo 2 SUTD

Virgo 2 SUTD

A research team including Profs. GimSong Soh, Kristin Wood and Kevin Otto at Robotics Innovation Lab at the Singapore University of Technology and Design has developed a rolling robot about the size of a baseball. The design and motion planning of this robot, Virgo 2.0, was presented at the Mechanisms and Robotics Conference which was part of the 2015 ASME Design Engineering Technical Conferences, August 2-5, in Boston, MA. A demonstration of the Virgo 2.0 moving through a figure eight path around obstacles is shown in the video below.
[youtube]https://www.youtube.com/watch?v=z9nZbOlhSqw[/youtube]


Interesting Planar Robot at Laval

[youtube]https://www.youtube.com/watch?v=_vp1ELEtDN4[/youtube]
Students of Prof. Clement Gosselin at the Laval University Robotics Laboratory demonstrate a four-degree of freedom planar robot. I particularly like the demonstration of its use as a gripper that does a cartwheel just for fun.


Tensegrity Robotics at UC Berkeley

[youtube]https://www.youtube.com/watch?v=ZwYXfijMet0[/youtube]
Students in Prof. Alice Agogino’s Berkeley Emergent Space Technologies Laboratory, the BEST Lab, working on motion planning for their tensegrity robot.


Origami Art at BYU

Origami Art BYU

Origami Art BYU

Mechanical engineering students in Prof. Larry Howell’s Compliant Mechanisms Research Group designed and constructed this kinetic structure for the BYU Museum of Art. It illustrates paper folding known as origami.
[youtube]https://www.youtube.com/watch?v=5e28J066oGY[/youtube]