In this paper, he describes three basic ‘3D printing’ techniques to create plastic parts layer by layer, using photopolymerization. Automatic Method for Fabricating a Three-Dimensional Plastic Model with PhotoHardening Polymer, in Review of Scientific Instruments.Three-Dimensional Data Display by Automatic Preparation of a Three-Dimensional Model : he explains his work in detail and all the experiments that brought him to conceive the ancestor of stereolithography (SLA).To support his experiments, Dr Kodama wrote two fundamental papers on rapid prototyping: Unfortunately, because of a funding issue, the full patent specification was not filled within the one-year deadline after application. He described his system as follow: a vat of photopolymer material is exposed to a UV light that hardens the part and builds up the model in layers. He applied for a patent for his rapid prototyping system in Japan, in May 1980. Japanese Doctor Hideo Kodama of Nagoya Municipal Industrial Research Institute was among the first to invent a single-beam laser curing approach. filed a patent for Fused Deposition Modelling (FDM)ĭr Kodama creates the ancestor of SLA A missed patent (1980) In this article, we’re concentrating in 3D printing processes invented during the 1980’s:ġ980: first patent by Japanese Dr Kodama for Rapid prototypingġ984: Stereolithography by French then abandonedġ986: Stereolithography taken up by Charles Hull, founder of 3D Systemsġ988: Carl Deckard brought a patent for the SLS technology,ġ988: Scott Crump, a co-founder of Stratasys Inc. It’s very interesting to see how it evolved from chemical experiments to an industry. In a previous article, we narrated the History of 3D printing. Today, we invite you in a trip in the past, to get to know those women and men better and understand what mood and state of mind they were in when they created what we call today additive manufacturing. But maybe they didn’t know how it was gonna evolve and prompt profound transformation in the whole manufacturing world. But who were the men and women behind this incredible innovation? We can guess they perfectly knew they had created a revolutionary process. From 1980 to 1988, many experiments were made and different 3D printing processes were created.
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