Rapid Prototyping Technique stereolithography

Laser-based generative processes such as stereolithography and selective laser sintering are part of a group of techniques commonly known as layered manufacturing . These are rapid prototyping techniques that build up a 3D object (or physical model) layer by layer. They are used in fields like mechanical engineering, and more recently in medicine and health care, as they are fast and cost effective techniques for the manufacture of 3D parts. 

Rapid Prototyping Model of Power Saw Cabinet Part as seen in Figures 6 and 7. Using the Stereolithography technique the part was modelled from a polymere. 

While there are many choices and options for engaging in rapid prototyping, we ll cover the basic steps involved in stereolithography—an additive technique by which plastic models are built thin layer upon thin layer, resulting in a three-dimensional prototype created by a machine with very little human involvement. 

Stereolithography is a technique widely adopted in industry in conjunction with computer-aided design, CAD, and computer-aided manufacturing, CAM, i.e. micromachining [32, 37, 38]. Stereolithography allows the fabrication of solid, plastic, three-dimensional (3-D) prototypes or models of products and devices from CAD drawings in a matter of hours. Rapid prototyping by means of stereo-... 

Duplication of prototype master models (made by special techniques such as laser stereolithography, laser powder sintering, LOM etc.) in polyurethane or epoxy resins by the vacuum casting process within the scope of rapid prototyping . 

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