The document discusses different types of 3D printing technologies including subtractive manufacturing, additive manufacturing, stereolithography, selective laser sintering, fused deposition modeling, and digital light processing. It provides details on the history and development of these technologies from the 1980s onward. The key advantages of 3D printing discussed are rapid prototyping, customization of designs, and potential applications in industries like manufacturing, construction, automotive, medical and more.

2. 2D

3. 3D VISUALISATION AND IMAGING

4. What is Printing ?

6. Additive Subtractive

7. Subtractive manufacturing is a process by
which 3D objects are constructed by
successively cutting material away from a
solid block of material. Subtractive
manufacturing can be done by manually
cutting the material but is most typically
done with a CNC Machine.

8. • Digital Fabrication
It refers to various processes used to
synthesize a three-dimensional object.
In 3D printing, successive layers of
material are formed under computer
control to create an object.
These objects can be of almost any
shape or geometry, and are produced
from a 3D model or other electronic
data source.
A 3D printer is a type of industrial robot

9. Early Additive Manufacturing (AM) equipment and materials
were developed in the 1980s.In 1981, Hideo Kodama of
Nagoya Municipal Industrial Research Institute invented two
AM fabricating methods of a three-dimensional plastic model
with photo-hardening polymer, where the UV exposure area is
controlled by a mask pattern or the scanning fiber transmit.
Hideo defined the process as a "system for generating
three-dimensional objects by creating a cross-sectional
pattern of the object to be formed"

10. •SLS (Selective Laser Sintering)
•FDM (Fused Deposition Modeling)
•SLA (Sterolithography)
•DLP (Digital Light Processing)

11. Selective Laser Sintering (SLS) is a technique that uses
laser as power source to form solid 3D objects
As was stated previously, 3D systems Inc. developed
stereolithography, which in some way is very similar to
Selective Laser Sintering.The main difference between
SLS and SLA is that it uses powdered material in the vat
instead of liquid resin as stereolithography does.

13. Fused deposition modelling (FDM) is an additive manufacturing
technology commonly used for modeling, prototyping, and production
applications. It is one of the techniques used for 3D printing.
FDM works on an "additive" principle by laying down material in layers;
a plastic filament or metal wire is unwound from a coil and supplies
material to produce a part.
The technology was developed by S. Scott Crump in the late 1980s and
was commercialized in 1990.

14. A plastic filament or metal wire
is unwound from a coil and
supplies material to an extrusion
nozzle which can turn the flow
on and off.

15. Stereolithography (SL also known as Optical Fabrication, Photo-
Solidification, Solid Free-Form Fabrication) is a form of additive
manufacturing technology used for creating models,prototypes, patterns,
and production parts in a layer by layer fashion
using photopolymerization, a process by which light causes chains of
molecules to link together, forming polymers
Photopolymerization reactions are chain-growth polymerizations
which are initiated by the absorption of visible or ultraviolet light

17.  similar to stereolithography
 It uses digital micro mirrors
laid out on a semiconductor
chip
 For 3D printing DLP as well
as SLA works with
photopolymers

18. How 3D Printing
Can Change the
World?

19. Medical procedures
Advances in research
Product prototyping
Historic Preservation
Architectural Engineering
Construction
Advanced Manufacturing
Food Industries
Automotive
Accessories

20. Creation of body parts

25. or
How to print an 3D image
into object ?

29. • Manufacturing Options
• Manufacturing Speed
• Rapid Prototyping
• Medical
• Build your Imagination

30. • Size
• Fewer Manufacturing Jobs
• Limited Materials
• Dangerous Items