3D PRINTING

BY K.KALIRAJ SHEIK ALI

• The first working 3D printer was created in 1984 by Charles Deckard Hull of 3D Systems Corp

HISTORY OF 3D PRINTING

3D printing is an additive manufacturing process that creates 3 dimensional objects from 3 dimensional digital information.

It is a method of converting a virtual 3D model into a physical object.

3D PRINTING

General principles

1.Modelling: -3D printable models may be created with a CAD software like Auto CAD,SolidWorks,TinkerCAD,etc..

2. Printing: -Before printing a 3D model from an STL file -Construction of a model with contemporary methods can take anywhere from several hours to several days

3. Finishing:

3D Printing Materials

PLA (PolyLactic Acid)and ABS(Acrylonitrile Butadiene Styrene) are the materials most often used in 3D printing.

Among other materials you may find glass polyamide, epoxy resin, wax and even metals like titanium, silver and even steel.

Types of 3D Printing:

FDM – Fused Deposition Modeling

SLA – Stereo lithography

SLS - Selective laser sintering

WORKING

Step 1

CAD -- Produce a 3-D model using computer-aided design(CAD) software.

Step2

Conversion to STL -- Convert the CAD drawing to the STL format

Step3

Transfer STL file to 3D printing Machine--A user copies the STL file to the computer that controls the 3-D printer.

Step4

Machine Setup -- Each machine has its own requirements for how to prepare for a new print job. This includes refilling the polymers, binders and other consumables the printer will use.

Step5

Build -- Let the machine do its thing; the build process is mostly automatic. Each layer is usually about 0.1 mm thick

Step6

Removal -- Remove the printed object (or multiple objects in some cases) from the machine.

Step7

Post processing -- Many 3-D printers will require some amount of post-processing for the printed object. This could include brushing off any remaining powder or bathing the printed object to remove water-soluble supports.

Step8

And finally the object is ready to be used

3D Printin

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Medical

Food

Games & Entertainme

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IndustriesPop-Culture

Defense & Space

Fashion & Retail

APPLICATIONS

Physicians can use 3D printing to make hearing aids, artificial teeth, and bone grafts.

• 3D printed Jaw• 3D printed Ear• 3D Printed bone

MEDICAL INDUSTRY

Artists can create models of their projects.

ARCHITECTURE

Designers use 3D printers to quickly create product

models and prototypes.

INDUSTRIAL DESIGN

RAPID PROTOTYPING: 3D printing gives designers the ability to quickly turn concepts into 3D models or prototypes (rapid prototyping).

Clean process. Wastage of material is negligible.

Complex shape can be produced .

EASY TO USE No skilled person needed.

REDUCE DESIGN COMPLEXITY

CHEAP Cheaper process than any other process.

People in remote locations can fabricate objects that would otherwise be inaccessible to them.

ADVANTAGES

Process is slow Components do not have enough strength. COST OF RAW MATERIALS 3-D printers are still expensive. Misuse of technology Although 3-D printers have the potential of creating many

jobs and opportunities, they might also put certain jobs at risk .

(for example, you can make your toys at home so toy stores and toy makers might go out of business).

DISADVANTAGES

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