ABSTRACT
The ThermoJet and the Actua 2100, both made by 3D Systems in Valencia, CA, fall into the growing area of the rapid prototyping (RP) market known as concept modeling. Both systems apply the Multi Jet Modeling (MJM) build style to produce wax prototypes with an array of ink jets. The systems are one of the least expensive in the line of RP technologies. They are also safe and clean enough to operate directly in a design office environment. The ThermoJet is actually a replacement to the Actua 2100, but there are still several Actua units in operation throughout the world.
