Patent ID: 11993007

Abstract:
A measuring system serves for equipping or retrofitting a device for manufacturing a three-dimensional object by selective layerwise solidification of a building material. The device includes an irradiator for selectively irradiating a layer of the building material applied in a working plane of the device at locations corresponding to a cross-section of the object to be manufactured. The irradiator includes at least two irradiation units, and each irradiation unit can be projected onto a pixel in the working plane and can be at least switched on and off. The measuring system includes at least one camera for determining and evaluating the radiation emitted by the irradiator and/or the position and/or orientation of the irradiation unit(s) in absolute and/or relative to one another, and at least one distance sensor for detecting an extension in a direction (z) perpendicular to the working plane.