Produced by and for Hot Science - Cool Talks by the Environmental Science Institute. We request that

the use of these materials include an acknowledgement of the presenter and Hot Science - Cool Talks

by the Environmental Science Institute at UT Austin. We hope you find these materials educational

and enjoyable.

Dr. Carolyn Seepersad

October 16, 2015

The Future of 3D Printing:

The Democratization of Design

# 98

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The Future of 3D Printing:

The Democratization

of DesignCarolyn Conner Seepersad, PhD

Associate Professor and General Dynamics Faculty Fellow

Product, Process, and Materials Design Laboratory

and Laboratory for Freeform Fabrication

Mechanical Engineering Department

The University of Texas at Austin

October 16, 2015

3

3D Print Almost Anything…

Almost Anywhere…

Engine parts,

GE

4

3D Print Almost Anything…

Almost Anywhere…

Cake,

3DSystems/Culinary

5

3D Print Almost Anything…

Almost Anywhere…

Sculpture,

Bathsheba

Grossman

6

3D Print Almost Anything…

Almost Anywhere…

Prosthetics,

Bespoke Innovations

7

3D Print Almost Anything…

Almost Anywhere…

Prosthetics, Open Bionics

8

3D Print Almost Anything…

Almost Anywhere…

Medical devices, Not Impossible Labs (Sudan)

Longhorn Maker Studio at UT Austin

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3D Print Almost Anything…

Almost Anywhere…

Medical devices, Not Impossible Labs (Sudan)

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3D Printing: The Next Industrial Revolution?

Cranial implants, Custom IMD

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Why are we so fascinated by

3D printing?

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How does

3D printing work?

13

How does 3D printing work?

thingiverse.com

CAD STL 3D Printer

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How does 3D printing work?

Material Extrusion Process

15

How does it work?

Laser Sintering Process

16

Why is it (technically) called

Additive Manufacturing?

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Why is it (technically) called

Xcentricmold.com

Molding

Additive Manufacturing? Other kinds of manufacturing:

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Why is it (technically) called

Caldergr.com

Subtractive

Additive Manufacturing? Other kinds of manufacturing:

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Wegst, et al., Nature

Additive

Why is it (technically) called

Additive Manufacturing?

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What are the origins of

additive manufacturing?

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The Origins of Additive Manufacturing

Nature

Beginning of time:

Nature

Tim

eli

ne

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The Origins of Additive Manufacturing

3D Photosculptures (1860s)

Admiral Farragut sits for

photosculpture, late

1860’s

Beginning of time:

Nature

1860s-1870s:

Photoscupltures

Tim

eli

ne

23

The Origins of Additive Manufacturing

Topography Techniques (1892)

1890s:

Topography

1860s-1870s:

Photoscupltures

Beginning of time:

Nature

Tim

elin

e

24

The Origins of 3D Printing

1981:

IBM PC

Beginning of time:

Nature

1860s-1870s:

Photoscupltures

1890s-1980s:

Topography

Tim

eli

ne

IBM 5150 PC

25

The Origins of 3D Printing

Laser Sintering, Stereolithography, FDM

1984-1989:

Laser Sintering

Stereolithography

FDM

Beginning of time:

Nature

1860s-1870s:

Photoscupltures

1890s-1980s:

Topography

1981:

IBM PC

Tim

eli

ne

Early Laser

Sintering at

UT Austin

Carl Deckard

Joe Beaman

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1989:

Fused Deposition Modeling

Beginning of time:

Nature

1860s-1870s:

Photoscupltures

1890s-1980s:

Topography

1984:

Stereolithography

1986:

Laser Sintering

Present Day:

New Industrial Revolution?

Tim

eli

ne

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Is 3D printing the next

industrial revolution?

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Ely, Kashdan, Kuhr, Swantner, Vaughan

UT Austin

Oxford Museum of the History of Science

ahsoc.org

Is 3D Printing the next industrial revolution?

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So, what are we 3D

printing now?

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One-of-a-kind fabrication

Olaf Diegel

Wohlers Report 2012 www.3DSystems.com

Harvest Technologies

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Personal Customization

Crawford, Neptune, et al.

UT Austin

Invisalign

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Functional complexity

GE/EADS via Ponoko.com Lopes, MacDonald, Wicker, 2012, RPJ

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A Snapshot of One of My Research

Projects

Collaborators:

Mike Haberman, Preston Wilson, Desi Kovar,

Dixon Correa, Tim Klatt, Sergio Cortes,

Ken Bostwick, Mark Kershisnik, Jared Allison,

Zahra Ahmed

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Negative Stiffness Honeycombs with

Superior Impact Protection

(Correa et al., 2014, 2015); Graphic courtesy of Cockrell School of Engineering

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Negative Stiffness Honeycombs with Superior

Impact Protection

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Compressive Behavior of NS Honeycomb

0 5 10 15 20 25 30 35

Fo

rce [

N]

Displacement [mm]

Sample L Test 1 FEA Prediction

Experimental stage-wise compression of a negative stiffness honeycomb.

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Impact Performance of NS Honeycombs

High speed video of a negative stiffness honeycomb under impact [5].

[5] K. S. Bostwick, “Impact Loading Effects on Negative Stiffness Honeycomb Structures”, Master’s Thesis, The University of

Texas at Austin, 2015.

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Impact Behavior of NS Honeycomb

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Personal Protection Applications

Prototype impact captured by high speed camera.

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How does it feel to wear this device?

-20

0

20

40

60

80

100

0 0.01 0.02 0.03 0.04 0.05 0.06

Fo

rce

[N

]

Time [s]

Without honeycomb.

-400

-200

0

200

400

600

800

1000

0 0.005 0.01 0.015 0.02

Fo

rce

[N

]

Time [s]

With honeycomb.

Without honeycomb.

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Where do we go

from here?

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New Frontiers …

Mansoor et al., 2013, Princeton

(Extremetech.com)

Attala, Wake Forest University

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New Frontiers …

Cornucopia: Digital Gastronomy

The Sugar Lab

Cornell Creative Machines Lab

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New Frontiers …

Barron, Gallagher, Cook, Pradhan, Wang, UT Austin

Autodesk 123D

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New Frontiers …

LAMPS, Courtesy of Beaman, Fish, and colleagues

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New Frontiers …

Innovationstation.utexas.edu

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What will you make?

Student Projects, UT Austin

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What will you make?

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Team Acknowledgements

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Dr. Carolyn Seepersad

Dr. Carolyn Seepersad’s research focuses on developing methods and computational tools for engineering design. She led the creation of The Innovation Station, the first of its kind 3D printing vending machine, accessible to all students on the campus of UT Austin.

Dr. Seepersad is an Associate Professor in the Department of Mechanical Engineering at The University of Texas at Austin. Dr. Seepersad has earned many awards for her research and teaching, including the 2009 inaugural International Outstanding Young Researcher Award in Freeform and Additive Manufacturing from the additive manufacturing community, the 2010 University of Texas Regents’ Award for Outstanding Teaching by an Assistant Professor. She has also authored more than 100 peer-review conference and journal publications and one book.