This document provides an overview of 3D printing. It discusses the history of 3D printing, how 3D printing works by building objects layer by layer, and common 3D printing processes like fused deposition modeling, selective laser sintering, and stereolithography. The document also outlines advantages such as reducing waste and allowing for testing of designs before production. Limitations include the costs of materials and equipment as well as speed. Applications of 3D printing span various fields like art, music, engineering, automotive, and medicine. In conclusion, 3D printing offers benefits of time, cost, and resource savings for manufacturing.

1. 3D PRINTING (A FACTORY ON YOUR DESK)
SUBMITTED BY:-
ABHISHEK KANSAL
31706112
M.TECH (I&P) 2ND SEM.
SUBMITTED TO:-
PROF. P.C TIWARI

2. CONTENTS
 History
 What is 3D Printing
 Working
 3D Printing processes
 Advantages
 Limitations
 Applications
 Conclusion
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3. History
 1984
Charles Hull developed the first 3D
Printer and named the technique as
Stereo lithography.
 Later 1990´s
Other companies developed 3D
printer´s.
 2005
Z Corp launched first high
definition color 3D Printer.
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4. 4

5. Introduction
 3D Printing is a form of additive manufacturing
technology where a three dimensional object is created
in layer by layer form of material.
 It is also known as Rapid Prototyping(RP).
 Figure shows rapid manufacturing or layered
manufacturing.
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6. Working
 You only need a Printer ,raw material and software to tell the 3D
Printer what to print.
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7. Working steps…
Step1 :-
 Produce a 3D model using computer-aided design(CAD) software.(CAD
software Ex. Solid Works, Pro/Engineer, CATIA and many more )
Step 2 :-
 Convert the CAD drawing to the .STL format.(many other formats are
.WRL and .VRML )
Step 3 :-
 Now convert the .STL model in to thin no. of slice through slicer software
(Cura, Slic3r, KISSlicer).This slicer software convert .STL file in to G-code
file which is understandable by 3D Printer.
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8. Working steps…
Step 4 :-
 This G-code file upload to 3D Printer.
Step 5 :-
 According to G-code instructions 3D Printer start printing layer by layer
form of material which after become diffused together form the final object
or product.
Step 6 :-
 After formation of product post processing will perform which help to get
finishing or accuracy in shape as well as in Dimensions.
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10. 3D Printing Processes
 Fused deposition modeling (FDM)
 Selective Laser Sintering
 Stereo lithography (SL)
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11. Fused Deposition modelling(FDM)
 Fused deposition modeling (FDM) was developed by S. Scott Crump in the
late 1980´s and was commercialized in 1990´s by Stratasys.
 FDM works on an "additive" principle by laying down material in layers; a
plastic filament wire is unwound from a coil and supplies material to
produce a part.
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13.  Various polymers are used
o Polycarbonate (PC),
o Polylactic Acid (PLA)
o High Density Polyethylene (HDPE)
o Polyphenylsulfone (PPSU).
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14. Selective laser sintering
 Selective Laser Sintering (SLS) is an additive manufacturing (AM)
technique that uses a laser as the power source to sinter powdered
material , aiming the laser automatically at points in space defined
by a 3D model, binding the material together to create a solid
structure.
 An additive manufacturing layer technology, SLS involves the use of
a high power laser (for example, a carbon dioxide laser) to fuse
small particles of plastic, metal, ceramic, or glass powders into a
mass that has a desired three-dimensional shape.
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Block 1 Block 2

16. Stereo lithography
 The term “stereo lithography” was coined in 1986 by Charles
W. Hull.
 Stereo lithography is an additive manufacturing or 3D
printing technology used for producing models,
prototypes, patterns, and production parts up one layer at a
time by curing a photo-reactive resin with a UV laser or
another similar power source.
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18. Advantages
 3D printing allows ideas to develop faster than ever.
 Zero Scrap
 Verify a design before investing in an expensive molding tool .
 With a prototype you can test the market
 Get the feel of object
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19. Limitations
 3D Printing material and equipment are costly
 Limited material
 Harmful emission
 3D Printer are slow
 Copyright infringements
 Size and scale limitation
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20. Applications
1. Role of 3D Printing in Art
 Portrait
 Interior design
 Stop motion animation
2. Role of 3D Printing in Music
 Music instrument
 Electric guitar
 Speakers
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21. 3. Role of 3D Printing in natural sciences
 Experimental instruments
 Experimental models
4. Role of 3D Printing in automobile
 Components
 Gear
 Clutch
 Piston
5. Role of 3D Printing in Business
 Plastic industries
 Glass industries
 Electronic industries
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22. 6. Role of 3D Printing in Engineering
 Flow analysis
 Stress distribution
7. Role of 3D Printing in Medical Science
 Pre-surgical planning
 Education
 Bone or body part replacement
 Surgical training
 Tissue engineering
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23. Conclusion
Creating complete models in a single process using 3D
printing has great benefits. This innovative technology
has been proven to save companies time, manpower and
money.
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24. References
 http://en.wikipedia.org/wiki/3D_printing
 http://www.zcorp.com
 http://www.howstuffworks.com
 mashable.com/category/3d-printing
 Rapid 3D printing of anatomically accurate and mechanically heterogeneous
aortic valve hydrogel scaffolds
 Vandendriessche, Pieter-Jan. "delta 3D printer accuracy“
 www.3dprinter.net
 www.livescience.com/34551-3d-printing.html
 www.3dprinter.net/reference/what-is-3d-printing
 www.stratasys.com/3d-printers
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25. Thank
You
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