| Type | Technologies | Materials |
|---|---|---|
| Extrusion | Fused deposition modeling (FDM) | Thermoplastics (e.g. PLA, ABS),HDPE, eutectic metals, edible materials |
| Wire | Electron Beam Freeform Fabrication (EBF3) | Almost any metal alloy |
| Granular | Direct metal laser sintering (DMLS) | Almost any metal alloy |
| Electron beam melting (EBM) | Titanium alloys | |
| Selective heat sintering (SHS)[citation needed] | Thermoplastic powder | |
| Selective laser sintering (SLS) | Thermoplastics, metal powders, ceramic powders | |
| Powder bed and inkjet head 3d printing, Plaster-based 3D printing (PP) | Plaster | |
| Laminated | Laminated object manufacturing (LOM) | Paper, metal foil, plastic film |
| Light polymerised | Stereolithography (SLA) | photopolymer |
| Digital Light Processing (DLP) | photopolymer |
http://en.wikipedia.org/wiki/3D_printing#Research_into_new_applications
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