3D PRINTERS WHAT IS 3D PRINTER? 3D printing also known as additive manufacturing (AM), refers to various processes used to synthesise.

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Presentation transcript:

3D PRINTERS

WHAT IS 3D PRINTER? 3D printing also known as additive manufacturing (AM), refers to various processes used to synthesise 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.

3D PRINTER

HOW 3D PRINTING WORKS? Virtual design of the object is created in CAD file using 3D modelling program or with the use of 3D scanner. To prepare a digital file for printing, the 3D modelling software “slices” the final model into hundreds or thousands of horizontal layers. When the sliced file is uploaded in a 3D printer, the object can be created layer by layer. The 3D printer reads every slice and creates the object, blending each layer with hardly any visible sign of the layers, with as a result the three dimensional object.

TECHNOLOGIES USED Not all 3D printers use the same technology. There are several ways to print and all those available are additive, differing mainly in the way layers are build to create the final object. Some methods use melting or softening material to produce the layers. Some of the common technologies used are: Selective Laser Sintering (SLS) Fused Deposition Modeling (FDM) Stereolithography (SLA)

SELECTIVE LASER SINTERING (SLS)

FUSED DEPOSITION MODELING (FDM)

STEREOLITHOGRAPHY (SLA)

SEVEN PROCESSES Vat Photopolymerisation Material Jetting Binder Jetting Material Extrusion Powder Bed Fusion Sheet Lamination Directed Energy Deposition

MANUFACTURING APPLICATIONS Cloud-based additive manufacturing Mass customisation Rapid manufacturing Rapid prototyping Research Food Medical applications

INDUSTRIAL APPLICATIONS Apparel Vehicle Construction Firearms Space 11 Medical Medical devices Bio Printing Pills Computers and Robots

ADVANTAGES Ability to customise products Rapid production of prototypes Low cost of production No storage cost Increased employment opportunities Quick availability of organs

DISADVANTAGES Intellectual property issues Unchecked production of dangerous items Limitations of size Limitations of raw material Cost of printers

FUTURE 3D printers capable of outputting in colour and multiple materials already exist and will continue to improve to a point where functional products will be able to be output. With effects on energy use, waste reduction, customisation, product availability, medicine, art, construction, and sciences, 3D printing will change the manufacturing world as we know it.

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