NAME – SAKET MISHRAROLL NO -082

3D printing is a form of additive manufacturing technology where a three dimensional object is created by laying down successive layers of material.

How it works...

Creates a 3D image using

CAD software.

CAD information

sent is sent to the printer.

As per instructions , printer forms the object by

“additive mechanism”

What is CAD ? Computer–aided design (CAD)

A software to create 2D or 3D graphical representations of physical objects.

Used to design curves and figs in 2D space ; or curves , surfaces and solids in 3D space.

Benefits of CAD• CAD software offers greater accuracy, so errors are reduced.

A CAD system provides easier, more robust documentation of the design, including geometries and dimensions, bills of materials, etc.

• CAD software offers easy re-use of design data and best practices

Device that analyses a real-world object or environment to collect data on its shape and possibly its appearance

Stereolithography(SLA)

Fused deposition modeling (FDM)

Selective laser melting (SLM)

Laminated object manufacturing (LOM)

There are different 3d printing methods that were developed to build 3D structures and objects. Some of them are

Types of 3D printers

Stereolithography (SLA)Process that works by focusing an ultraviolet (UV) laser on to a vat of photopolymer resin.The UV laser is used to draw a pre-programmed design or shape on to the surface of the photopolymer vat.

Fused deposition modelling (FDM)FDM Technology build objects layer by layer from the very bottom up by heating and extruding thermoplastic filament.

Selective laser melting (SLM)Selective laser melting (SLM) is a technique a high-power laser beam that fuses and melts metallic powders together.

Laminated Object Manufacturing (LOM)In LOM process, layers of adhesive-coated paper, plastic or metal laminates are fused together using heat and pressure and then cut to shape with a computer controlled laser or knife.

PRODUCTS BY 3D PRINTER

Disadvantages of 3D Printing

Fewer Manufacturing Jobs

Limited Materials

Dangerous Items

Size

References

http://www.3ders.org/http://3dprintingfromscratch.com/3dcategory/3dbasics/