公开(公告)号：US11203157B2

公开(公告)日：2021-12-21

申请号：US16373576

申请日：2019-04-02

Applicant: AUTODESK, INC.

Inventor： Saul Griffith ,  Martin Wicke ,  Keith Pasko ,  Geoffrey Irving ,  Sam Calisch ,  Tucker Gilman ,  Daniel Benoit ,  Jonathan Bachrach

IPC: G06F17/00 ,  B33Y50/00 ,  B29C64/386 ,  G06F30/00

Abstract: Embodiments disclosed herein provide systems and methods for preparing geometry for 3D printing. In one embodiment, a 3D printing preparation application receives 3D geometry and repairs non-manifold edges and non-manifold vertices, producing a topological manifold geometry. The 3D printing preparation application then welds coincident edges without coincident faces and fills holes in the geometry. The 3D printing preparation application may further perform resolution-aware thickening of the geometry by estimating distances to a medial axis based on distances to distance field shocks, and advecting the distance field using a velocity field. A similar approach may be used to perform resolution-aware separation enforcement. Alternatively, one component may be globally thickened and subtracted from another for separation enforcement. The 3D printing preparation application may also split large models and add connectors for connecting the split pieces after printing. In addition, the 3D printing preparation application may generate a 3D print preview.

公开(公告)号：US09619587B2

公开(公告)日：2017-04-11

申请号：US13859051

申请日：2013-04-09

Applicant: AUTODESK, Inc.

Inventor： Saul Griffith ,  Martin Wicke ,  Keith Pasko ,  Geoffrey Irving ,  Sam Calisch ,  Tucker Gilman ,  Daniel Benoit ,  Jonathan Bachrach

IPC: G06F17/50

CPC classification number: G06F17/50 ,  G06F2217/42

Abstract: Embodiments disclosed herein provide techniques for decomposing 3D geometry into developable surface patches and cut patterns. In one embodiment, a decomposition application receives a triangulated 3D surface as input and determines approximately developable surface patches from the 3D surface using a variant of k-means clustering. Such approximately developable surface patches may have undesirable jagged boundaries, which the decomposition application may eliminate by generating a data structure separate from the mesh that contains patch boundaries and optimizing the patch boundaries or, alternatively, remeshing the mesh such that patch boundaries fall on mesh edges. The decomposition application may then flatten the patches into truly developable surfaces by re-triangulating the patches as ruled surfaces. The decomposition application may further flatten the ruled surfaces into 2D shapes and lay those shapes out on virtual sheets of material. A person, or machinery, may cut out those shapes from physical sheets of material based on the layout.

公开(公告)号：US10248740B2

公开(公告)日：2019-04-02

申请号：US13859058

申请日：2013-04-09

Applicant: AUTODESK, Inc.

Inventor： Saul Griffith ,  Martin Wicke ,  Keith Pasko ,  Geoffrey Irving ,  Sam Calisch ,  Tucker Gilman ,  Daniel Benoit ,  Jonathan Bachrach

IPC: G06F17/50 ,  B33Y50/00 ,  B29C64/386

Abstract: Embodiments disclosed herein provide systems and methods for preparing geometry for 3D printing. In one embodiment, a 3D printing preparation application receives 3D geometry and repairs non-manifold edges and non-manifold vertices, producing a topological manifold geometry. The 3D printing preparation application then welds coincident edges without coincident faces and fills holes in the geometry. The 3D printing preparation application may further perform resolution-aware thickening of the geometry by estimating distances to a medial axis based on distances to distance field shocks, and advecting the distance field using a velocity field. A similar approach may be used to perform resolution-aware separation enforcement. Alternatively, one component may be globally thickened and subtracted from another for separation enforcement. The 3D printing preparation application may also split large models and add connectors for connecting the split pieces after printing. In addition, the 3D printing preparation application may generate a 3D print preview.