Patent ID: 6811744
Filing Date: 2004-11-02
Classification: B05B,B22F,B23K,B29C,B33Y,F28F,Y02P

Abstract:
A method comprising the steps of:defining a solid model (141, 146) which describes a finished three-dimensional structure (130), said solid model (141, 146) having embedded features, in a computer-aided design program stored on a control computer (129); depositing a layer (15) of material feedstock (126, 127) on a substrate (19) using a directed material deposition process (123); said deposition process (123) controlled by said computer-aided design program; and using a deposition process that employs more than three axes of motion such that the part build axis can be varied during said deposition process to allow unsupported overhangs to be built on said solid model (141, 146).