Additive Manufacturing / 3D Printing and CAD

http://fc02.deviantart.net/fs45/f/2009/081/4/7/wayang_kulit_by_KFT_Andri.jpg

Seminar Nasional CAD 2013, UMM, Malang, Indonesia
Yudhi Ariadi, Loughborough Design School, UK

Additive Manufacturing (AM) / 3D Printing
Definition
ASTM F2792 - 12a Standard Terminology for
Additive Manufacturing Technologies:
• additive manufacturing (AM), a process of joining
materials to make objects from 3D model data, usually
layer upon layer, as opposed to subtractive manufacturing
methodologies. Synonyms: additive fabrication, additive
processes, additive techniques, additive layer
manufacturing, layer manufacturing, and freeform
fabrication.
• 3D printing, the fabrication of objects through the
deposition of a material using a print head, nozzle, or
another printer technology.

Definition: manufacturing
Online Etymology Dictionary:
• 1560s, "something made by hand," from Middle French
manufacture, from Medieval Latin *manufactura (source
of Italian manifattura, Spanish manufactura), from Latin
manu, ablative of manus "hand" + factura "a working,“

Oxford Dictionaries:
• make (something) on a large scale using machinery
• make or produce (something abstract) in a merely
mechanical way

MASS PRODUCTION:
produce large quantities of (a standardized article) by an
automated mechanical process:

Manufacturing, e.g.: injection moulding
Mould development process
please pay attention on how to get a
product from design to manufacture in
injection moulding process, then compare
it to the AM / 3D Printing process.

http://precision.moulds.asia/Molds-Design/

Mould design please pay attention on how to get a

http://www.youtube.com/watch?v=9py3eIPUUTo

Mould making please pay attention on how to get a

http://www.youtube.com/watch?v=seZqq1qxW30

Manufacturing process please pay attention on how to get a

http://www.youtube.com/watch?v=eUthHS3MTdA

Injection moulding products

http://www.plastic-injectionmoulding.co.uk/injectionmoulding/Household-Parts.jpg

Complex shape products http://www.3d-
printers.com.a
u/wp-
content/uploa
ds/2010/08/qu
in_night_rend
er.jpg

http://www.textually.org/3DPrinting/2012/12/31/photo1032.jpeg

Can they be
manufactured
by injection
http://www.stylebistro.com/Daily+Dish/a
moulding? rticles/hS5x__RWj7b/Wear+These+3D
+Printed+Shoes

Complex shape products
Can they be manufactured by injection moulding?

http://d3vd8b39huo1pd.cloudfront.net/static/uploads/content/feature/slide/image/Josh-Harker-Feature-JH-Slide-01.jpg

How it works?

Source: Rapid Manufacturing Master Class 2008 – Econolist Ltd

How it works?

http://www.youtube.com/watch?v=mX6G-TluQHE

How it works?
RepRap printers can print out just over half of the
parts needed to build a new RepRap machine.

Advantages: Case Study 1

Advantages: Case Study 2

Advantages: future development

http://www.youtube.com/watch?v=TyOgDlUWfFE

What are suitable CADs for AM / 3D Printing?

CAD for AM / 3D Printing
Support algorithm computational complexity geometry

KX Design


http://www.youtube.com/watch?v=pLd4-T-l2WM


Loughborough Design School

Easy to operate for general public (non-technical people)
(Web-based CAD)

https://tinkercad.com/things/aF35hrBVVkl-incredible-jofo-elzing/edit

(Web-based CAD)

http://www.3dtin.com/

(Web-based CAD)

http://www.shapeways.com/creator/sake-set/

Trends, surrounding CAD
Product - Production
Mass production
- Variety at low cost
4
Mass 3
production

Production
Technology Mass
Cycle 5 customisation
Fragmented2 -Flexible
production manufacturing

6 Rapid Manufacturing
- Home industry
1 - made one-of-a-kind
Hand made/manual making
Craft customisation
- Home industry
- made one-of-a-kind product

Technology trend: Everything becomes easier

Text-based
typewriter Icon-based
Text
Generation

Handwriting
handwriting recogniser

Voice recognition


http://www.youtube.com/watch?v=Qdv7hxQ8uFE

Sculpting

DAVID GOLIATH

David, Yudhi,
sculpted from 1501 to 1504 manufactured from 13:10 to 16:10
(1:10pm to 4:10pm ;)

Photography & photoprinting
Old way Current way

Haptic: touching the 3D models

http://www.youtube.com/watch?v=E2gk5GT-kEo

Haptic: shaping the 3D models

http://www.youtube.com/watch?v=leWCb1WGw7M

Future CAD
Assumption
4 5

2D drawing 3D
by CAD modelling
by CAD

3 2D drawing Design 6
on table Haptic
Technology Aided
Design
Cycle Haptic Virtual Rake
Virtual Sculpting

Modernman makes
Design sketch 2 virtual product directly
from his mind
No sketch, no drawing 7

Virtual Reality aided Design

1
Cavemen makes
product directly
The Flying Machine-
from his mind.
Leonardo Da Vinci
No sketch, no
drawing

Future CAD
Prediction

Production stage – from consumers to end use products

STYLISH DESIGN MANU-
CONSUMERS DESIGNING FACTURING PRODUCT
or MODELLING ENGINEERING

CACODE CAID CAD/CAE CAD/CAM
Computer aided Computer aided Computer aided Computer aided
Consumer Design Industrial Design Engineering Manufacturing

Consumers’ tool Designers’ tool Engineers’ tool Manufacturers’ tool
Computer aided development step – from industries to customers

Additive Manufacturing / 3D Printing and CAD

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