Methods for calibrating an irradiation device for an apparatus for additively manufacturing three-dimensional objects include generating at least two first and two second calibration patterns, in at least two different first positions and at least two different second positions; determining position information relating to the positions of the calibration patterns; generating a calibration quality value relating to a calibration status of the irradiation device; simulating at least two first calibration patterns and at least two second calibration patterns based on at least one changed irradiation parameter; determining a calibration quality value for the simulated calibration patterns; and repeating the simulation and determination of the calibration quality value until a maximum or minimum calibration quality value is reached.

The present invention relates to a method for additive manufacturing of a 3D-structured form and to a device for additive manufacturing of a 3D-structured form.

The present invention relates to a method for additive manufacturing of a 3D-structured form and to a device for additive manufacturing of a 3D-structured form.

In an example of a method for three-dimensional (3D) printing, one or more dispersions is/are sprayed to form a layer including build material particles and a liquid agent. The liquid agent is evaporated from the layer to form a build material layer, and based on a 3D object model, a binder agent is applied on at least a portion of the build material layer.

In an example of a method for three-dimensional (3D) printing, one or more dispersions is/are sprayed to form a layer including build material particles and a liquid agent. The liquid agent is evaporated from the layer to form a build material layer, and based on a 3D object model, a binder agent is applied on at least a portion of the build material layer.

Printing systems, compositions suitable for the printing system, use of the compositions, methods for additive manufacturing, and exposure systems, all allowing for improved 3D manufacturing of products, include the exposure of layers of photopolymer material by two different wavelengths coming from LEDs.

Printing systems, compositions suitable for the printing system, use of the compositions, methods for additive manufacturing, and exposure systems, all allowing for improved 3D manufacturing of products, include the exposure of layers of photopolymer material by two different wavelengths coming from LEDs.

An apparatus for manufacturing an axi-symmetric part. The apparatus includes a vessel configured to contain the powder. The vessel is also configured to receive a part such that at least a portion of the part contacts the powder contained within the vessel. A first energy source is configured to generate a first beam of energy. The first beam of energy is configured to melt the powder at a first predetermined location such that the melted powder fuses to the part.

A method for the additive manufacture of at least one three-dimensional object by means of a system, wherein a coating unit is moved onward through any number of segments and/or subsegments such that the coating unit performs at least one idle run. A system for the additive manufacture of three-dimensional objects, and a computer-readable storage medium are also disclosed.

A method for the additive manufacture of at least one three-dimensional object by means of a system, wherein a coating unit is moved onward through any number of segments and/or subsegments such that the coating unit performs at least one idle run. A system for the additive manufacture of three-dimensional objects, and a computer-readable storage medium are also disclosed.