3D PRINTINGA Technology towards revolution

Contents Printers

Types of printers

Dot matrix

Inkjet

Laser

Inkless

3D printers

General principles

Applications

Advantages

Conclusion

References

PrintersOutput Device

First Printer in 19th Century by Charles

Babbage

In 1980 Daisy wheel system like typewriter

Low cost Laser printers invented in 1984

By 2000 high quality printers are available

In 2010 3D printing has become an area of

intense interest

Types of Printers

Printers

Dot Matrix

Inkjet

Laser

Inkless

3D

Dot matrix Each dot is produced by a tiny metal rod called wire or pin.

Up to 48 pins can be used to form the characters.

It is also called line dot matrix printers.

Capable of printing up to 1000 cps.

Capable of printing 800 pages/hour

Inkjet First developed in early 1950s.

Prints by propelling droplets of ink on print materials.

Produces 64,000 to 165,000 droplets per seconds.

They can print finer and smoother.

Commonly used.

Laser In 1969 Gary Stark developed laser printer.

First commercial implementation of laser printer was IBM3800.

A laser beam projects an image of the page to be printed. Then

powdered ink particle are charged which is attracted onto paper.

Inkless Thermal printers work by selectively heating regions of

special heat-sensitive paper.

Monochrome thermal printers are used in cash registers, ATMs,

gasoline dispensers and some older inexpensive fax machines.

3D Printers In 1981 Hideo Kodama of Nagoya municipal industrial research

institute developed first 3D printed model.

Followed by Chuck Hull in 1984 named it stereo lithography.

3D printable models can be created with computer aided design.

The printers were originally large expensive and highly limited.

General PrincipleModeling.

Printing.

Finishing.

Modeling

Additive manufacturing takes virtual

blueprints from computer aided design (CAD)

or animation modeling software and "slices"

them into digital cross-sections for the

machine to successively use as a guideline for

printing.

PrintingTo perform a print, the

machine reads the design and lays

down successive layers of liquid,

powder, or sheet material to build

the model from a series of cross

sections. These layers, which

correspond to the virtual cross

sections from the CAD model, are

joined together or automatically

fused to create the final shape. The

primary advantage of this technique

is its ability to create almost any

shape or geometric feature.

Finishing

Though the printer-produced

resolution is sufficient for many

applications, printing a slightly oversized

version of the desired object in standard

resolution, and then removing material

with a higher-resolution subtractive process

can achieve a higher-resolution

Applications Automobiles.

Electric motors and generators.

Art.

Prototypes.

Education.

Healthcare.

Faison clothing.

Advantage

Print movable parts.

Print items in remote location.

Ability to send items over internet and print out at

home.

Plastic used is strong.

Conclusion3D printing is an expanding

technology which may soon start

an industry in which everyone

has the possibility of being a

manufacturer.

3D printing has a lot of possible

benefits to society, although the

products created must be

regulated.

Reference 3D Printer Technology – Animation of layering. Create

It Real. Retrieved 2012-01-31.

Hideo Kodama, “Automatic method for fabricating a three-

dimensional plastic model with photo-hardening polymer,” Review

of Scientific Instruments, Vol. 52, No. 11, pp 1770-1773, November

1981

“3D Printing: What You Need to Know”. PCMag.com.

Retrieved 2013-10-30.

“3D printing: Ultimaker 2 Review”. David Hana t. 2014-

11-07. Retrieved 2014-12-01.

http://en.wikipedia.org/wiki/3D_computer_graphics