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1. SEMINAR ON 3D PRINTING TECHNOLOGY

2. CONTENTS Introduction History Terminology Printing Types of Printing Mechanism Applications Future Scope Challenges conclusion

3. HISTORY The technology for printing physical 3D objects from digital data was first developed by Charles Hull in 1984. He named the technique as Stereo Echography and obtained a patent for the technique in 1986.. By the end of 1980s, other similar technologies such as Fused Deposition Modelling (FDM) and Selective Laser Sintering (SLS) were introduced. In 1993, Massachusetts Institute of Technology (MIT) patented another technology named “3 Dimensional Printing Technologies”, which is similar to the inkjet technology used in 2D printers. In 1996, three major products: “ Genisys ” from Stratasys , “ Actua 2100” from 3D System and “Z402” from Z Corporation, were introduced. In 2005, Z Corp. launched a breakthrough product, named Spectrum Z510, which was the first high definition 3D printer in the market..

4. INTRODUCTION 3D printing is a technology where a three-dimensional object is crated by laying down successive layers of materials. It is also known as Addictive Manufacturing. 3D printing is achieved using an addictive process, where successive layers laid of materials are laid down in different shapes.

5. TERMINOLOGIES Addictive Manufacturing :- refers to technologies that create objects through sequential layering. Rapid Prototyping :- is a group of techniques used to quickly fabricate a scale model of physical part or assembly using three-dimensional computer aided design (CAD) data. Subtractive processes :- is the removal of material by methods such as cutting or drilling. Stereo echography :- was defined by Charles W. Hull as a “System for generating three-dimensional objects by creating cross-sectional pattern of the object to be formed.

6. PRINTING To perform a print, the printer read the design from3D printable file (STL file).