filed a patent for Fused Deposition Modelling (FDM). In the meantime, Scott Crump, a co-founder of Stratasys Inc. In 1988, at the University of Texas, Carl Deckard brought a patent for the SLS technology, another 3D printing technique in which powder grains are fused together locally by a laser. If SLA was the first 3D printing technology developed, what about SLS (Selective Laser Sintering) and FDM (Fused Deposition Modeling) back then? He founded the 3D Systems Corporation and in 1988, released the SLA-1, their first commercial product. At the same time, Charles Hull was also interested in the technology and submitted a first patent for stereolithography (SLA) in 1986. If you want more information about these first experiences, check out our interview of Jean-Claude André. This 3D printing attempt was also using a stereolithography process. Unfortunately, he did not file the patent requirement before the deadline.Ī few years later, a French team of engineers, Alain Le Méhauté, Olivier de Witte and Jean-Claude André, was interested by the stereolithography but abandoned due to a lack of business perspective.
He was the first to describe a layer by layer approach for manufacturing, creating an ancestor for SLA (or Stereolithography): a photosensitive resin was polymerized by an UV light. The first 3D printing attempts are granted to Dr Kodama for his development of a rapid prototyping technique. The concept of 3D printing has been imagined back in the 1970’s, but the first experiments are dated from 1981.
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