Compare the benefits of Key3D's Z Corp printing technology to alternate rapid prototyping methods.

Z Corp (Z Corp 3D printer used by Key3D) – Ink-jet based process that prints the part's cross sectional geometry on layers of powder spread on top of each other. It is best suited to producing inexpensive prototypes quickly. Models printed with starch and impregnated with wax are environmentally inert.
SLA (Stereo Lithography Apparatus) – Process using photosensitive resins cured by a laser that traces the part's cross sectional geometry layer by layer. SLA produces accurate models with a variety of material choices.
SLS (Selective Laser Sintering) – Process using a CO2 laser to sinter or fuse a powder material. The laser traces the part's cross sectional geometry layer by layer. SLS creates accurate and durable parts but finish out of machine is relatively poor. 
FDM (Fused Deposition Modeling) – Process using molten plastics or wax extruded by a nozzle that traces the part's cross sectional geometry layer by layer. FDM creates tough parts that are ideal for functional usage. 
Polyjet – This process is similar to stereolithography in that parts are made with a photosensitive resin. The difference is in how the resin is applied and cured to build the part.