Hull 1986 SLA stereolithography; Crump 1989 FDM; SLS selective-laser-sintering. Layer-by-layer additive-manufacturing of polymers. Polymer-jetting + DLP digital-light-processing. ~$15B market.
Hull 1986 SLA stereolithography; Crump 1989 FDM; SLS selective-laser-sintering. Layer-by-layer additive-manufacturing of polymers. Polymer-jetting + DLP digital-light-processing. ~$15B market.