Patent ID: 6066285
Filing Date: 2000-05-23
Classification: B29C,B33Y,G03G

Abstract:
A solid freeform fabrication method for constructing a three dimensional object through successive layer-by-layer deposition of powder comprising the steps of:(a) providing electrophotographic powder deposition means to create a transferable powder image, and creating said transferable powder image;(b) providing a platform to receive said transferable powder image;(c) transferring said transferable powder image to said platform to create a deposited powder layer;(d) providing another transferable powder image;(e) providing means to charge said deposited powder layer such that said deposited powder layer is charged opposite to said another transferable powder layer, and charging said deposited powder layer;(f) transferring said another transferable powder image onto said deposited powder layer previously transferred to create another deposited powder layer;(g) repeating steps (d) through (f) to construct a three dimensional object.