ADDITIVE MANUFACTURING OF A 3D PART

The invention notably relates to a computer-implemented method of additive manufacturing of a three-dimensional (3D) part. The method comprises providing a surface representation of a 3D part in a 3D scene, the surface representation being enclosed inside a bounding volume; discretizing the 3D scene...

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Bibliographische Detailangaben
1. Verfasser:	SCHMIDT, Martin-Pierre
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADDITIVE MANUFACTURING TECHNOLOGY ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING IMAGE DATA PROCESSING OR GENERATION, IN GENERAL PERFORMING OPERATIONS PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention notably relates to a computer-implemented method of additive manufacturing of a three-dimensional (3D) part. The method comprises providing a surface representation of a 3D part in a 3D scene, the surface representation being enclosed inside a bounding volume; discretizing the 3D scene into voxels; forming an unsigned distance field by storing a minimal distance value to the surface representation of the 3D part for each voxel; determining one or more voxels located outside the bounding volume, the one or more voxels located outside the bounding volume being associated with a label; propagating by flood filling the label until a stopping condition is met, which is reaching a gradient inversion of the distance field; inverting the sign of the distance value of all unlabelled voxels so as to obtain a signed distance field; computing an iso-surface of the 3D part at iso-value zero based on the signed distance field; and additive manufacturing the 3D part.