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公开(公告)号：US11513494B2
公开(公告)日：2022-11-29
申请号：US16647127
申请日：2017-12-04
发明人： Sergio Gonzalez , Jordi Roca , Matthew A. Shepherd
IPC分类号： G05B19/4099 , B33Y50/00 , B29C64/386 , G06F30/20 , G06F113/10
摘要： In an example, a method includes receiving, at least one processor, a mesh model for an object, a first transformation matrix to apply to the mesh model to describe a first object for generation in additive manufacturing and a second transformation matrix to apply to the mesh model to describe a second object for generation in additive manufacturing. The method may further include determining, by at least one processor, if the first and second transformation matrices describe transformations which are equivalent in terms of mesh errors and, if so, inspecting the mesh model for mesh errors once for both the first and second transformation matrices.
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公开(公告)号：US11366454B2
公开(公告)日：2022-06-21
申请号：US17051559
申请日：2018-08-20
IPC分类号： G05B19/4099 , B33Y50/00 , B29C64/386 , G06T15/08
摘要： In one example, a representation of a volume of a part to be printed by an additive manufacturing system is generated, where the representation depicts a plurality of voxels. A plurality of slices of the representation are generated. Each slice relates to a plurality of voxels within a first plane. A first process is performed in respect of a slice of the plurality of slices, wherein in the first process at least one voxel that has a predetermined colour and is located on a predetermined surface of the part is identified and a data file is updated to include data representative of the identified at least one voxel. The first process is repeated in respect of another slice. A three-dimensional preview of the part to be printed is generated based on the data file.
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公开(公告)号：US20220118709A1
公开(公告)日：2022-04-21
申请号：US17418790
申请日：2019-07-08
发明人： Matthew A. Shepherd , Morgan T. Schramm , Vanessa Verzwyvelt , Dennis J Schissler , Xin Cheng , Jacob Wright
IPC分类号： B29C64/393 , B29C64/165 , B29C64/343 , B33Y50/02
摘要： In an example, a method includes segmenting, using a processor, a virtual volume comprising a representation of at least a part of an object to be generated in additive manufacturing. The virtual volume may be segmented into a plurality of segments and the object may be intended to have a first color. Additive manufacturing control instructions may be determined for the segments. The additive manufacturing control instructions may comprise instructions for distributing the print agent composition and the additive manufacturing control instructions for each segment may be determined based on the thermal properties of a print agent composition intended to provide the first color to compensate for variations in object dimensions associated with the thermal properties.
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公开(公告)号：US20210394450A1
公开(公告)日：2021-12-23
申请号：US17288816
申请日：2019-04-25
IPC分类号： B29C64/393 , B33Y50/02 , G06F30/17
摘要： In an example implementation, a method of compensating for dimensional variation in 3D printing includes receiving a voxel space model that represents a 3D object to be printed within a build volume of a 3D printing system, asymmetrically eroding voxels from the voxel space model, and printing the 3D object based on the asymmetrically eroded voxel space model.
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公开(公告)号：US20210354395A1
公开(公告)日：2021-11-18
申请号：US16607795
申请日：2018-07-31
IPC分类号： B29C64/393 , B29C64/165 , B29C64/40 , B33Y50/02
摘要： According to examples, an apparatus may include a processor and a memory on which is stored machine readable instructions that may cause the processor to identify a color of a portion of a 3D object to be fabricated from a 3D model and to determine, based on the identified color of the portion, a property of a thermal support, in which the property may affect a temperature of an area near build material particles used to form the portion. The instructions may cause the processor to instruct fabrication components to fabricate the thermal support having the determined property and the fabrication components to fabricate the 3D object. The thermal support may be fabricated at a location with respect to the portion to increase a temperature of a set of particles used to fabricate the portion during fabrication of the portion.
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公开(公告)号：US20220143916A1
公开(公告)日：2022-05-12
申请号：US17418786
申请日：2019-07-31
IPC分类号： B29C64/386 , B33Y50/00 , B22F10/80 , G05B19/4099
摘要： According to examples, an apparatus may include a processor and a memory on which are stored machine-readable instructions that when executed by the processor, may cause the processor to access data corresponding to a 3D object model, in which the data may identify a label placeholder on the 3D object model. The processor may also access fabrication information pertaining to a 3D object to be fabricated based on the data, generate a defined label based on the accessed fabrication information, and may insert the defined label at the label placeholder on the 3D object model, such that the 3D object may be fabricated with the defined label positioned at a location on the 3D object corresponding to the label placeholder on the 3D object model.
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公开(公告)号：US11279091B2
公开(公告)日：2022-03-22
申请号：US16075706
申请日：2017-07-10
IPC分类号： B29C64/393 , B33Y10/00 , B33Y50/02 , B29C64/153 , B22F10/00 , B28B1/00 , B28B17/00 , B22F10/10
摘要： In an example, a method includes forming a layer of build material, processing a first portion of the build material by distributing a print agent using a first distribution pattern, the first distribution pattern having a first print agent dispersion characteristic and processing a second portion of the build material by distributing a print agent using a second distribution pattern, the second distribution pattern having a second print agent dispersion characteristic. The method may further include heating the build material by exposing the layer of build material to radiation so as to cause fusing of the first and second portion.
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公开(公告)号：US20220083023A1
公开(公告)日：2022-03-17
申请号：US17419032
申请日：2019-05-03
发明人： Matthew A. Shepherd , Vanessa Verzwyvelt , Jacob Wright , Xin Cheng , Dennis J. Schissler , Morgan T. Schramm
IPC分类号： G05B19/4099
摘要： According to examples, an apparatus may include a processor and a memory on which are stored machine-readable instructions that when executed by the processor, may cause the processor to identify a first orientation of a first surface portion of a three-dimensional (3D) model. The instructions may also cause the processor to, based on the identified first orientation of the first surface portion, determine a first thickness of a first section of a first geological region of the 3D model, the first section being adjacent to the first surface portion, in which a plurality of different orientations of 3D model surface portions are correlated to a plurality of different thicknesses. The instructions may further cause the processor to define the first section of the first geological region to have the determined first thickness.
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公开(公告)号：US11260585B2
公开(公告)日：2022-03-01
申请号：US16097226
申请日：2016-07-22
IPC分类号： B29C64/165 , B33Y10/00 , B29C64/209 , B29C64/393 , B33Y50/02 , B29C64/264 , B29C64/232 , B29C64/236 , B29C64/245
摘要： In an example implementation, a method of printing a three-dimensional (3D) object includes scanning a print bar in a first direction over a build platform of a 3D printer to deposit a liquid agent onto a layer of build powder. The print bar is then indexed in a second direction substantially orthogonal to the first direction before scanning the print bar back over the build platform in a third direction opposite the first direction to deposit additional liquid agent onto the layer of build powder.
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公开(公告)号：US20210124333A1
公开(公告)日：2021-04-29
申请号：US16647127
申请日：2017-12-04
发明人： Sergio Gonzalez , Jordi Roca , Matthew A. Shepherd
IPC分类号： G05B19/4099 , B29C64/386 , B33Y50/00
摘要： In an example, a method includes receiving, at least one processor, a mesh model for an object, a first transformation matrix to apply to the mesh model to describe a first object for generation in additive manufacturing and a second transformation matrix to apply to the mesh model to describe a second object for generation in additive manufacturing. The method may further include determining, by at least one processor, if the first and second transformation matrices describe transformations which are equivalent in terms of mesh errors and, if so, inspecting the mesh model for mesh errors once for both the first and second transformation matrices.
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