08465689 is referenced by 18 patents and cites 207 patents.

A solid imaging apparatus is provided that includes a replaceable cartridge containing a source of build material and an extendable and retractable flexible transport film for transporting the build material layer-by-layer from the cartridge to the surface of a build in an image plane. An operator using the device needs merely to remove a spent cartridge and replace it with a fresh cartridge to continue solid imaging virtually uninterrupted. The apparatus also includes the capability of withdrawing and inserting an imager without the operator having to perform a separate alignment step. A brush attached to the transport film and forming part of the cartridge provides for intra-layer removal of excess uncured build material. If desired, the apparatus can produce a fully reacted build. A high intensity UV source cures the build between layers. An injection molded build pad is designed to hold a build in an inverted position for improving the build. The invention also provides for tilting the build elevator to reduce air entrainment and for releasing the build from the image plane.

Title
Elevator and method for tilting solid image build platform for reducing air entrainment and for build release
Application Number
13/176190
Publication Number
8465689 (B2)
Application Date
July 5, 2011
Publication Date
June 18, 2013
Inventor
Mehdi Mojdeh
Valencia
CA, US
Charles W Hull
Santa Clarita
CA, US
Suzanne M Scott
Springfield
VT, US
Dennis F McNamara Jr
Charlestown
NH, US
Charles R Sperry
Leeds
MA, US
Assignee
3D Systems
SC, US
IPC
B29C 41/42
B29C 41/02
B29C 35/08
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