Stereolithography (SL or SLA)
     (Vector exposure methods, usually by laser.)
Photopolymer-based Methods      (Other than stereolithography,
       and largely area-based exposure.)
Selective Laser Sintering (SLS) and related technologies
Laminated Object Manufacturing (LOM) and related technologies
Fused Deposition Modeling (FDM)
     (Including other extrusion-based methods)
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Laser Powder Forming Technologies
Inkjet Methods
Three Dimensional Printing (3DP) and related technologies
         Companies using 3DP for manufacturing
Miscellaneous, Uncommercialized or Early-stage Technologies
         Company Listings
         Technology Listings
         Liquid Metal Jet Printing
CNC Technologies
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