Fig. 1: Schematic representations of various 3D printing techniques.
From: Multi-material vat photopolymerization 3D printing: a review of mechanisms and applications

a Vat Photopolymerization (VPP). b Selective Laser Sintering (SLS). c Binder Jetting (BJT). d Inkjet Printing (IJP). e Sheet Lamination (SHL). f Direct Ink Writing (DIW). g Fused Filament Fabrication (FFF). h Electrohydrodynamic Printing (EHD). i Aerosol Jet Printing (AJP). j Directed Energy Deposition (DED).