Method and device of providing a control command set
AssigneeEOS GmbH Electro Optical Systems
InventorsMichael Goeth, Martin Leuterer
Life of this patent
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Abstract
Disclosed is a method for providing a control command set for an additive manufacturing device. The method includes providing a parameter set consisting of a number of parameters, and a construction rule, which is suitable for describing at least one section of the object by the parameter set geometrically as a number of linear or flat elements in space; generating a computer-based layer model of the section of the object by determining, for each layer, the position and shape of a cross-section of the section of the object within the layer, generating a control command set for an additive manufacturing device by which the production of the section of the object is implemented on the basis of the layer model.
Claims15
A method of manufacturing at least one three-dimensional object by an additive manufacturing apparatus, wherein in the additive manufacturing apparatus the at least one object is manufactured layer by layer by solidifying a building material at positions corresponding to a cross-section of the object in a respective one of a plurality of layers, wherein the additive manufacturing apparatus is driven by a control command set provided by the following method:
- providing a parameter set consisting of a number of parameters and a construction rule that is suitable to geometrically describe at least one portion of the object by the parameter set as a number of line-shaped elements or area elements in space, wherein the geometrically described portion of the object is made up only of the line-shaped elements at least within one of the layers;
- generating a computer-based layer model of the portion of the object in each of the layers by determining the position and shape of the cross-section of the portion of the object in each of the layer;
- generating the control command set for the additive manufacturing apparatus by which the manufacture of the portion of the object is implemented based on the computer-based layer model;
- and
- supplying heat energy to the building material by an electromagnetic ray bundle or particle ray bundle, thereby solidifying the cross-section by scanning the line-shaped element(s) in a direction of the line with the electromagnetic ray bundle or particle ray bundle,
- wherein a width of the line-shaped element after its solidification is adjusted by adjusting a mean energy density per unit area in an area of incidence of the ray bundle and/or by adjusting a dimension of the ray bundle in a direction of the width of the line-shaped element and/or by adjusting a velocity with which the electromagnetic ray bundle or particle ray bundle scans the line-shaped element(s) in the direction of the line;
- and
- wherein the computer-based layer model is generated without accessing a volume model, area model or edge model of the portion of the object.
Dependencies are inferred from the claim text.