MD101 Links to Linkage Designs

Prototype Butterfly Linkage
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Manufacturing Prototype for the Butterfly Linkage

This animation is taken from Yang Liu's detailed design drawings…
Whale Linkage
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Bezier Linkages

Recent research on the design of linkages by Yang Liu has…
Butterfly drawing mechanism
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Design of Drawing Mechanisms

Animation. This mechanical system designed by Yang Liu is a…
MotionGen Horse
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Motion Gen Linkage Design App

MotionGen is a planar four-bar linkage simulation and synthesis…
Elliptic curve drawing
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Mechanical computation and algebraic curves

Animation.  Here is Yang Liu's animation of the mechanical…
Introduction to Linkages

Trifolium using contra-parallelograms

Yang Liu shows that a simple linkage can draw the trifolium curve. For…
Fourier Curve Tracing
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Fourier Curve Tracing

This animation by Yang Liu is inspired by the mechanical Fourier…
SIAM News
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SIAM News: Biologically inspired linkage design

This article by Jon Hauenstein with me for SIAM News (Society…
Heart Linkage
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Heart Trajectory

This mechanical system was designed by Yang Liu to trace…
Folding Bicycle
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Full Size Folding Bicycle

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

Lawrence Funke and Prof. James Schmiedeler of the University…
Origami Art BYU
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Origami Art at BYU

Mechanical engineering students in Prof. Larry Howell's Compliant…
A six-bar linkage designed to fold a structure
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Six-bar linkage folds a structure

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

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

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

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Please select this link to open the Geogebra Book containing…
Introduction to Linkages
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Linkage Design for Wing Flapping

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Mark Plecnik shows that six-bar function generators can be…
Introduction to Linkages
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3D Printed Demining Training Aids

Training people to diffuse landmines and other live ordnance…

Linkage Design Concepts

Jessica Koa designed the flower with petals actuated by six-bar linages.

Link Yun’s flower with six-bar linkages moving the petals.

Benjamin Liu’s Terrarium uses six-bar linkages to open the glass sides.

DJ Fuller’s Jack-o’Lantern uses six-bar linkages to open the segments.

Jessica Kao developed this sofa bed that opens using a six-bar linkage.

Ling Yun used our sofa beg linkage to display a gift.

Design Innovation

Student designs of six-bar linkages

Andrew Brouwer’s six-bar linkage to guide the petals.

Kamil Samaan designed this six-bar linkage.

Bojun Lin’s six-bar linkage guiding the pedals of a flower.

Colin Sledge’s six-bar flower.

Frank Liu’s six-bar flower.

Cameron Turner’s six-bar linkage flower.

Adam Shutt designed this six-bar to guide the opening of the petals of a flower.

Mohamed Ali designed this six-bar to guide the wings of this butterfly.

Tim Rasmussen designed this six-bar linkage to guide the petals of this flower.

Hsuan-chen Wan used MechGen 3 to design a six-bar linkage to guide the petals of the flower.

Student designs of four-bar linkages


Hsuan-chen Wan’s animation of a four-bar linkage that moves the petals of a flower.


Cameron Turner’s design of a flower that moves with a four-bar linkage.


Mohamed Ali’s four-bar linkage for the flower.


Scott Bougie’s animation of his flower design.


Frank Liu’s four-bar linkage design for the petal movement.


Yang Liu’s four-bar linkage flower.


Kamal Samaan’s design of the four-bar linkage driven flower.


The flower designed by Colin Sledge.


This is Andrew Brouwer’s design for the flower.


Adan Amarillas designed this linkage.


Brandon Creager animated a spiral opening for the flower.


Adam Shutts designed this linkage to open the petals.


Bojun Lin designed this flower linkage.


Kelly Lin designed this linkage.


Tim Rasmussen designed the linkage to open and close the flower petals.


This is the four-bar linkage designed by Ryan Kuehne.


Siqi Shi designed this four-bar linkage flower.


Tianming Cheng designed this four-bar linkage flower.


Brendan Smith uses the movement of the petal linkage for a different application.