Patent ID: 8803073
Filing Date: 2014-08-12
Classification: B23K,B29C,B33Y

Abstract:
1. A method of calibrating a CO 2 laser of an apparatus for generatively manufacturing a three-dimensional object, wherein the apparatus layerwise applies a powdery or liquid building material onto a support of the apparatus or a previously applied layer, the applied layer defining a working plane, and irradiates the building material by the CO 2 laser with energetic radiation at locations corresponding to the object so as to solidify the building material at these locations, the method comprising the following steps: arranging an image converter plate in, or in parallel to, the working plane, wherein the image converter plate outputs detectable light when the CO scanning the image converter plate by the CO detecting the detectable light by a light detector; determining coordinates of the CO comparing the determined coordinates with predetermined reference coordinates; and calibrating the CO