Autoinitialization in a three-dimensional modeling machine
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United States of America Patent
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Sep 30, 2003
Grant Date -
N/A
app pub date -
Jul 17, 2000
filing date -
Jul 17, 2000
priority date (Note) -
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status (Latency Note)
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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.
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