Various Rapid Prototyping Technologies
Of the many different types of rapid prototyping machines available, many share the same basic additive manufacturing process called "additive fabrication." The most common additive fabrication methods utilize a layered approach in which software analyzes the 3D model, slicing it into paper thin cross sectional layers that are sequentially fabricated and stacked in the RP machine. Primary RP technologies include:
3D Printing (3DP)
A process that utilizes inexpensive ink-jet technology to apply binder to a powder-based material.
Fused Deposition Modeling (FDM)
A process in which an extrusion nozzle applies a thin molten bead of thermoplastic to a substrate.
Selective Laser Sintering (SLS)
A process in which polymer-coated powdered materials are fused (sintered) by a laser.
Stereolithography Apparatus (SLA)
A process in which a photosensitive resin is cured by a laser.
Laminated Object Manufacturing (LOM)
A process in which layers of laminate materials are cut and bonded to form a part.
Electron Beam Melting (EBM)
A process in which an electron beam produces fully-dense metal parts by fusing metallic powder based materials.
See Diagram of Complete Technology Breakdown