Rapid Prototyping Overview Stereolithography Selective Laser Sintering Fused Deposition Modeling Metal Parts from Investment Castings QuickCast Patterns Sand Castings Wax Pattern Fabrication Other Metal and Plastic processes Polyurethane Castings from RTV Tooling CNC Machining Plastic Injection Molded Parts and Tooling Injection Molded Parts Zap Tooling CAD-CAM Design Services