3D printing or additive manufacturing is a process of making three dimensional solid objects from a digital file. The creation of a 3D printed object is achieved using additive processes. In an additive process an object is created by laying down successive layers of material until the entire object is created. Each of these layers can be seen as a thinly sliced horizontal cross-section of the eventual object.

1. 3D Printing
Lam Alice (14215128)
Leung Hok Shing (13211528)
So Cheuk Yiu (14221780)

2. Contents
Details of 3D
printing
Applications
Survey
Results
Future
development
Conclusion

3. Project Objectives
 To understand the advantages and disadvantages of 3D
printing
 To promote the knowledge and interests in 3D printing
 To realize the further development of 3D printing

4. Mindmap

6. Information
(web site & library resources collected &
the search strategies used)
website http://3dprinting.com/what-is-3d-printing/
http://www.philforhumanity.com/3D_Printing.html
http://www.3ders.org/applications.html
the search
strategies used
1. "3D Printing"
2. 3D Printing Advantages OR Disadvantages
3. Intitle:3D Printing Principle
4. 3D Printer-Price
5. 3D * Printer
6. top ten innovation
7. 2013 Printing history
8. 3D system
9. 3D system techniques
10. inurl:3D printing
11. 3D Printing -history
12. "3D printing software"
13.intitle:3D printing price
14. 3D printing material
15. 3D printing * Hong Kong

7. Details

8. 3D Printing background
 a process of making three dimensional solid objects
from a digital file
 The creation of a 3D printed object is achieved using
additive processes.
 In an additive process an object is created by laying
down successive layers of material until the entire
object is created. Each of these layers can be seen as
a thinly sliced horizontal cross-section of the eventual
object.

9. Methods and technologies
 Some methods use Selective laser sintering (SLS) and
fused deposition modeling (FDM) are the most common
technologies using melting or softening material to produce
the layers. .
 Another method of printing is to lay liquid materials that are
cured with different technologies. The most common
technology using this method is called stereolithography
(SLA).

10. General principle
 The basic principles include
1. materials cartridges
2. flexibility of output
3. translation of code into a visible pattern.

11. History
1986
• Hull coined the term Stereolithography when he patented his new system
1992
• The first Stereolithographic Apparatus (SLA) is made by 3D Systems
1999
• The first ever 3D organ, a bladder, is created with the patient’s own cells. This means that there is little
chance of the organ being rejected by the body
2002
• A miniture kidney is created that can filter blood and produce diluted urine in an animal.
2006
• The Selective Laser Sintering machine is built and allows for mass customisation in manufacturing
industrial parts
2008
• A prosthetic leg is created with a complex structure that requires no assembly. This opens the doorway
to customised prosthetic limbs
2009
• Innovative bioprinting company, Organovo, creates the first blood vessel to be bioprinted
2011
• Printing Service, i.materialise, starts offering 14K gold and sterling silver as a printable material.

12. Applications

13. Applications
 Apparel
 Education and research
 Art
 Rapid manufacturing
 Mass customization
 Automobiles
 Electric Motors and Generators
 Spaceflight
 Domestic use
 Medicine
 Environmental use

14. Applications

15. Applications

16. Applications

17. Online Survey
 Target: Public
 Information: Opinion on 3D Printing and its applications
 Site:
 https://docs.google.com/a/life.hkbu.edu.hk/forms/d/1Enlc
s0T-nhccXf2XNrGu8PpAtl4Y16w9VahFWWqvkbA/
viewform

18. 1. How old are you? 2.What is your qualifications?
Age group
7%
3%
90%
0%
11-17
18-30
31-45
>45
Qualifications
0%
15%
85%
0%
Primary Education
Secondary Education
Tertiary Education
None of the above

19. 50
45
40
35
30
25
20
15
10
5
0
3. Do you know what is 3D printing?
YES NO
YES
NO
45
40
35
30
25
20
15
10
5
0
4. How do you know 3D printing?
Internet
Newspaper
Schools
Magazine
TV
from this survey
Friends

20. 5. What is/are the advantage(s) of 3D
12%
8%
7%
19%
19%
35%
printing?
Reduced Costs
More Jobs opprotunity
Less needed warehousing of
excess inventory
Faster manufacturing Speed
Rapid Prototyping
More manufacturing Options
6. What is/are the disadvantage(s) of
13%
22%
18%
16%
12%
19%
3D printing?
Fewer Manufacturing Jobs
Limited Materials
Plagiarism
Product dangerous Items
More Useless Stuff
Limited size

21. 7. What do you think 3D printing is the
most widely used in recent years?
2%
7%
37%
7%
11%
4%
4%
11%
11%
6%
Apparel
Education and research
Art
Rapid manufacturing
Mass customization
Electric Motors and Generators
Spaceflight
Domestic use
Medicine
Environmental use
8. Does the government support society
19%
14%
67%
to use 3D printing?
YES
NO
NOT SURE!

22. 30
25
20
15
10
5
0
9. What is your most usage in 3D printing?
Spaceflight
Art
Apparel
Education and research
Domestic use
Mass customization
Rapid manufacturing
Medicine
Environmental use
Motors and Generators
35
30
25
20
15
10
5
0
10. In what level you think 3D printing
will popular in the future?
Least popular Less popular Popular More popular Most prpular
Least popular Less popular Popular More popular Most prpular

23. Data Analysis
 Majority of respondents said that they know what is
3D printing.
 Respondents know 3D printing are the main
medium through Internet and TV
 The respondents think the best of all is more
manufacturing options
 The respondents think the worst of all is limited
materials

24. Data Analysis
 Most of them agreed that art is the most widely
used in recent years and the main usage in 3D
printing
 The respondents are not sure whether the
government support society to use 3D printing
 They think 3D printing will be more popular in the
future

25. Future development
 Technological development will change the nature
of commerce because end users will be able to do
much of their own manufacturing rather than
engaging in trade to buy products from other
people and corporations.
 3D printers capable of outputting in colour and
multiple materials already exist and will continue to
improve to a point where functional products will
be able to be output.

26. Video

27. Conclusion-Advantages
Manufacturing Options 3D printing provides a wide variety of manufactured products, including
customizable products and even an individual’s personal designs.
Rapid Prototyping Products can go fast from a design to an actual prototype.
Manufacturing Speed The manufacturing speed for a large number of products is fairly fast.
Reduced Costs With the potential of 3D printers in homes in the near future, the costs of
3D printing are still decreasing
Warehousing Only products that are sold need to be manufactured, therefore
warehousing of excess inventory is less needed.
More Jobs More engineers are needed to design and build 3D printers.

28. Conclusion-Disadvantages
Fewer Manufacturing Jobs A large impact to the economies of third world countries that
depend on a large number of low skill jobs.
Limited Materials 3D printing of products in mixed materials and technology. For
example, circuit boards are still under development.
Copyright The printing of copyrighted products to create counterfeit items
will become more common and nearly impossible to
determine.
Dangerous Items 3D printers can create dangerous items, such as guns and
knives.
More Useless Stuff 3D printers will be used to create more useless stuff that is
bad for the environment and wallets.
Size 3D printers are limited with the size of the products that they
can create.

29. Job division
Lam Alice Leung Hok Shing So Cheuk Yiu
Web search
Mind map
Survey Design
Excel & Data
Analysis
Powerpoint

30. Thank You!