The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 30, 2003
Filed:
Jul. 17, 2000
Joseph L. Calderon, Carlsbad, CA (US);
David L. Pollard, Mountain Center, CA (US);
J. Samuel Batchelder, Somers, NY (US);
Stratasys, Inc., Eden Prairie, MN (US);
Abstract
Disclosed are a method and apparatus for initializing an additive process computer-controlled three-dimensional modeling machine which builds models on a modeling platform. The method, without operator intervention, senses the top surface of a substrate or other object mounted on the platform at a variety of preselected x, y locations and records the z-axis positions of the platform corresponding to the sensing of the object. Using the recorded z-axis positions, a z-start position for the modeling platform is calculated. The platform can be automatically placed at the calculated z-start position. The recorded z-axis positions can further be used to define a plane fitted to the substrate top surface. Optionally, the model can be built in a coordinate system defined by the plane.