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AssigneeEOS GmbH Electro Optical Systems
InventorsJochen Philippi, Andreas Lohner
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The invention refers to a method for calibrating the control of a radiation device producing electromagnetic radiation or particle radiation in a rapid prototyping system. The method comprises the steps of arranging a calibration plate at a defined position in the rapid prototyping system, the calibration plate having an upper side with a first region and a second region separate from the first region, the first region being provided with optically detectable reference marks and the second region having a medium which is sensitive to the radiation of the radiation device, producing a test pattern by exposing said medium to said radiation at predetermined desired positions defined by position coordinate data, digitizing the first region of the calibration plate with the reference marks thereon and the second region of the calibration plate having the test pattern, comparing the digitized reference marks and the digitized test pattern and calculating and providing correction data for the control of the radiation device on the basis of the comparison.
A method of calibrating an apparatus for producing a three-dimensional object by solidifying a material in subsequent layers of said object at places corresponding to cross-sections of said object in said layers using a focused beam of a radiation solidifying said material, said object being built on a plate defining an invariable coordinate system which is fixed relative to said apparatus,
A method of producing a three-dimensional object, comprising
Calibration apparatus for calibrating a radiation device of an apparatus for producing a three-dimensional object by solidifying a material in subsequent layers at places corresponding to cross-sections of said object in said layers using a focused beam of a radiation solidifying said material, said layers being formed on a plate defining a machine coordinate system which is fixed relative to said apparatus,
An apparatus for producing a three-dimensional object by solidifying a material in subsequent layers of said object at places corresponding to cross-sections of said object in said layers, using a focused beam of a radiation solidifying said material, said apparatus comprising
A method of producing a three-dimensional object, comprising
Dependencies are inferred from the claim text.