There are two common inkjet methods: Thermal Phase Change Inkjet and Photopolymer Phase Change Inkjet
The Thermal Phase Change Inkjet method, also known as Ballistic Particle Manufacturing involves using solid scape machines to hold the build and support materials at elevated temperatures in a reservoir. The liquid material then moves though thermally insulated tubing to individual jetting heads that disperses the material as tiny droplets to the required shape. Layers form as the droplets cool and harden immediately.
The Photopolymer Phase Change Inkjet method utilizes an inkjet head with a wide area. A UV food lamp mounted on the head of the printer exposes completed layers to UV light and hardens the layer. A secondary operation washes away support materials.
Inkjet methods score on finish and speed. The use of multiple jet heads to increase speed, however, compromises accuracy; and the finer the finish desired, more the time required.
The application of different types of rapid prototyping techniques in virtualization, testing, creating male models for tooling, manufacturing production-quality parts in small numbers and other uses allow moving your idea from paper to reality easily. It leads to lesser product development and throughput time, increased product variety, reducing mistakes, minimizing sustaining engineering changes, and allows for the extension of product lifetimes by adding necessary features or eliminating redundant features early in the design phase.