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Hy Pris Ng

on 16 October 2014

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Transcript of 3D PRINTING

Image by Tom Mooring
Part 1: Definition
Part 2: History
Part 3: Technology involved in 3D printing
Part 4: Impacts (Positive and Negative)
Part 5: Future
Part 1: Definition of 3D printing
Technology of 3D Printing
Stereolithography (SL)
Fused Deposition Modeling (FDM)
Selective Laser Sintering (SLS)
3 Dimensional Printing (3DP)
Polyjet Matrix

Part 3: Technology involved in 3D printing
Three common methods in 3D printing:
CAD soft ware export files in standard formats for 3D printing.
The exported file is mesh that enclose a 3D volume
Software slice the 3D model file into hundred of digital cross-sections, each corresponding to a layer of the model to be printed
Each layer is printed one atop
the other built up layer by layer
until the final product is complete.
Other application that now are possible to involved in 3D Printing
 Explore design concepts
 Evaluate style, fashion, packaging
 Industrial uses
 Display engineering analysis
 Application in architecture
 Application in medical modeling
 Patterns and direct molds for metal casting
The Limitation of 3D Printing

Material limitation
The object can only consist of single material.
E.g. plastics and metals

Production limitation
Some product shouldn’t produce by 3D printers because of legal issues
E.g. firearms

Defect of printed product size
limited in size
Part 4: Impact of 3D printing
(Positive and Negative)
Specific impact to Hong Kong 
1A. Everyone can be a designer
How it works
Consumers can use the software on the
3D printing company’s website to customize objects
Order the resulting items as 3D printed unique object
Custom product
1B. Bring convenience to our lives
E.g Blizzident company
Create a 3D-printed toothbrush
6 seconds and cleans all of your teeth simultaneously
Example 1 : Nokia (Lumia 820)
3D designs for their mobile cases
1A. Reduce the Prototype Time
Example 2:
3D printer pen
Example 3 : 3D printing company

Shapeways ,Makieslab ,Cubify
Provide software on their website
Andy Chung - Tooling & 3D engineer from PUMA
3D printer reduce production time
3-4 days
1C. Industry: New Shapes and Structures
Can build an unlimited amount of complex figures
Produce a finite number of shapes and structures
1B. Medical: Save the Lives of Many People

A baby with congenital tracheal disease
Using the biological materials to produce a splint in baby airways opened up a channel.

Able to breathe independently
Cultural: Help Protect the Cultural Relics
The Netherlands Amsterdam’s van Gogh Museum
Specific Impact to Hong Kong
Industry: Help reduce waste and construction time
The architecture may use 3D printing technology to produce the building materials.

Safety problem

Health problem

Intellectual property
Part 5: The future of 3D printing
Maybe can print out the food by using animal’s cell
Reduce the limitation of food and human

Do not need to slaughter of animals for survival need
3D printing can be used as a human body parts mutually
It is achieved using an additive process
It is considered distinct from traditional machining techniques
Three-dimensional solid object of virtually any shape from a digital model
Use a pool of chemicals that turns solid when light
Use molten ink that becomes solid when it emerges from the printer head
Use powdered material, brought together with glue or heated to fuse the
power together
Construct simulation before testing the feasibility
E.g. One Island East
Using 3D printing to test the feasibility
Detection more than 6,000 problems and it saves the engineering time and cost definitely.
Let valuable artwork preserve forever
Help the mass to protect the cultural relics
Using the 3D printing technology to replicate the Van Gogh’s paintings (sunflower)
Impact of 3D printing
Safety Problem
3D Printing pistol – Liberator
The 3D printing pistol invented by a 25 year-olds American
Blueprint was uploaded to the internet and just 3 days
100,000 people have downloaded
Lead people imitate it, create safety problems of the society
Health Problem
A survey conducted by the University of Illinois
It will release large amounts of toxic ultrafine particles
Released twenty billion particles per minute.
May equal to a long-term smokers.
Intellectual Property
The copyright infringement will be increase
E.g. people may using 3D printer to produce a product which may already exist in the market
Affect lots of company
For customer to customize the object
E.g. Jewelry, Toys, Accessories
Toxic substances
LIX 3D company
A chance for customer who interested in
art and design
Developed by Charles Hull in 1984
Named the technique in 1986
Improve systems in 1988
The first high definition color 3D Printer in the market in 2005
3D Printing occurred in 2006
The first version of Reprap, which was released in 2008

The status of 3D printing
The End
Full transcript