Patent ID: 7628857
Filing Date: 2009-12-08
Classification: B29C,B29L,B33Y,B41M

Abstract:
1. A three dimensional printing system comprising: a first replaceable printing tray to support a first three-dimensional object being formed; a second replaceable printing tray to support a second three-dimensional object being formed; a printing head to deposit material in layers onto the first replaceable printing tray when the first replaceable printing tray is positioned in a printing area to form the first three-dimensional object and to deposit material in layers onto the second replaceable printing tray when the second replaceable printing tray is positioned in the printing area to form the second three-dimensional object; and a controller to control after completion of printing the first three-dimensional object, automatic replacement of the first replaceable tray supporting the first three-dimensional object with the second replaceable tray and to instruct the printing head to start printing of the second three-dimensional object on the second replaceable tray.