Tracy Abell - All about 3D Printing

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123

3D PRINTING

CUTTING-EDGE TECHNOLOGY

by Tracy Abell

ALL ABOUT

ABOUT THE AUTHOR

Tracy Abell lives in the Rocky Mountain foothills in a house big enough for four people, two

dogs, two cats, and a bunch of stuff she probably doesnt need. Her next adventure might

include living in a 3D-printed tiny house near the ocean.

www.northstareditions.com

Copyright 2017 by North Star Editions, Lake Elmo, MN 55042. All rights reserved. No

part of this book may be reproduced or utilized in any form or by any means without written

permission from the publisher.

Produced for North Star Editions by Red Line Editorial.

Photographs : vgajic/iStockphoto, cover, 1; Twinkind/Rex Features/AP Images, 45; Ruan

Banhui/Imaginechina/AP Images, 6; Andrew Milligan/PA Wire/AP Images, 9; Mehdi Chebil/

Polaris/Newscom, 1011; Mopic/Shutterstock Images, 12; Damian Dovarganes/AP Images,

14; RAGMA IMAGES/Shutterstock Images, 16 (top left); wsf-s/Shutterstock Images, 16

(top right), 16 (bottom), 17 (top), 17 (bottom); Nikirov/Shutterstock Images, 1819; Steve

Lagreca/Shutterstock Images, 20; Alexander Tolstykh/Shutterstock Images, 2223; science

photo/Shutterstock Images, 25; Kelly Wilkinson/Indianapolis Star/AP Images, 2627; Lin

Hui/Imaginechina/AP Images, 29

Content Consultant: Dr. Howard A. Kuhn, Adjunct Professor, University of Pittsburgh

ISBN

978-1-63517-009-2 (hardcover)

978-1-63517-065-8 (paperback)

978-1-63517-170-9 (ebook pdf)

978-1-63517-120-4 (hosted ebook)

Library of Congress Control Number: 2016949754

Printed in the United States of America

Mankato, MN

November, 2016

Synched Read-Along Version by:

Triangle Interactive LLC

PO Box 573

Prior Lake, MN 55372

978-1-6 -2 - ( ebook)

TABLE OF CONTENTS

CHAPTER 1

What Is 3D Printing?

CHAPTER 2

How 3D Printers Work

HOW IT WORKS

Close-Up of a 3D Printer

CHAPTER 3

What Can 3D Printers Do?

CHAPTER 4

Potential Problems

CHAPTER 5

The Future of 3D Printing

Focus on 3D Printing 30

Glossary 31

To Learn More 32

Index 32

CHAPTER

WHAT IS 3D PRINTING?

S

tep into the scanner booth. Now

strike a pose. Whatever you do,

hold still. You see a bright flash.

Your picture is taken by cameras

at once. Special software turns

those images into a digital model.

Next, the software separates that

model into a stack of thin slices.

A company in Germany makes detailed portraits

using 3D printers.

Special software turns a series of photographs into a

3D model.

Then, a 3D printer puts down a layer of

powder in the shape of the first slice.

The printer repeats this process for

each slice in the model. The slices are

fused together. Finally, a technician

reaches into the powder. She pulls out a

plastic toy. Congratulations! You are now

an action figure.

3D is short for three-dimensional.

An object is 3D if it has length, width,

and height. A 3D printer creates

three-dimensional objects. These printers

can make toys, clothes, or even jet engine

parts. 3D printers form these objects by

adding one layer of material at a time.

Thats why 3D printing is sometimes

known as additive manufacturing.

Some people also call it direct digital

manufacturing.

There are a variety of 3D printer

sizes. There are also different printer

materials and printing processes

to choose from. It all depends on

what a person wants to create.

For example, the 3D printer that built

a cement apartment building in China

is very different from a printer used to

create prosthetic arms.

3D printing began in the early 1980s.

A researcher wanted to print an object

using liquid plastic that would harden

in layers. Several years later, his idea

RAPID PROTOTY PING

3D printing was invented as a way to quickly make

prototypes. A prototype is the first model of an

invention. Designers test the sample to make sure

it works. If it doesnt, they make changes and print

another model. Prototypes help designers get their

inventions just right.

Scientists are working on ways to 3D-print organs for

people with health problems.

became a reality. A 3D object was created

by digital data fed into a printer. UV laser

beams were aimed at liquid plastics.

Wherever the light hit, the liquid became

solid plastic.

By the 2010s, 3D printers could make

jewelry, tools, vehicles, and more. The

possibilities of 3D printing seem almost

endless!

CHAPTER

A digital file tells the 3D printer what to make.

A

ll 3D-printed objects have one thing

in common. Each starts with a design

file on a computer. That file is a digital

model of the object you want to print. The

digital model is separated into many thin

slices. The design file tells the printer the

precise shape of each slice in the object.

HOW 3D PRINTERS

WORK

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