The Main Principles Of Stereolithography - The First 3D Printing Technology - The

He made an application for a patent for his fast prototyping system in Japan, in May 1980. He explained his system as follow: a barrel of photopolymer material is exposed to a UV light that hardens the part and develops the model in layers. Sadly, due to the fact that of a funding issue, the full patent specification was not filled within the 1 year due date after application.

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Automatic Technique for Making a Three-Dimensional Plastic Model with Picture, Hardening Polymer, in Evaluation of Scientific Instruments. In this paper, he explains three standard '3D printing' techniques to develop plastic parts layer by layer, using photopolymerization. He also gives vital information for the development of stereolithography process. A French Team produces Stereolithography A concept born in the canteen (1984-86) Jean-Claude Andr (from the very renowned French National Center for Scientific Research CNRS), Alain le Mhaut (from CGE, former Alcatel) and Olivier de Wiite (from Cilas) came next.

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His colleagues disagreed with his formulas. The idea was clear for him:. He needed to create a 'fractal item' which he describes to be 'an object with local homes that are comparable to its worldwide residential or commercial properties.' Because of the complex shape of such an object, no maker permitted such development.

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Olivier de Witt was at the time dealing with lasers for Cilas, subsidiary of Alcatel. And guess what? Olivier informed him: when 2 lasers cross each other, a liquid (monomer) can end up being a strong (polymer). They had actually simply believed of building a '3D printer'! They would utilize a laser to try and develop Alain's 'fractal object'.

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They provided their idea to Jean-Claude Andr who was a scientist at the CNRS. Always very light-hearted, he certified the concept to be 'an excellent great bad concept'. He included the concept to develop the item layer by layer, and not from the block. From  Solution Can Be Seen Here , the 3 guys started working together to develop a '3D printer' The very first things they produced was a spiral staircase!! They filed a patent for stereolithography procedure, 3 weeks before the American Chuck Hull who developed 3D Systems (see listed below)! The French Patent was approved in January 1986.