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公开(公告)号：US10919228B2
公开(公告)日：2021-02-16
申请号：US16064584
申请日：2016-04-04
发明人： Luis Garcia , Pol Fornos , David Ramirez Muela
IPC分类号： B33Y10/00 , B29C64/30 , B29C64/393 , B29C64/165 , B33Y30/00 , B33Y50/02
摘要： There is disclosed additive manufacturing apparatus comprising: a controller (110) to: receive object data relating to an object to be generated; and define print data for additive manufacture of the object by ejection of a print agent on build material in a pattern corresponding to selective fusing of the build material, wherein the print data is defined based on the object data so that the pattern defines a shield feature (56) embedded within the object to inhibit fusing of build material corresponding to the shield feature relative build material corresponding to an adjacent portion of the object; and a print agent distributor (104) to eject a print agent on build material based on the print data.
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公开(公告)号：US20160344895A1
公开(公告)日：2016-11-24
申请号：US15028891
申请日：2013-10-15
申请人： Sergio PUIGARDEU ARAMENDIA , Angel MARTINEZ BARAMBIO , Luis GARCIA GARCIA , M.Isabel BORRELL BAYONA , HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
IPC分类号： H04N1/405
CPC分类号： H04N1/4052 , G06K15/1876 , G06K15/1881
摘要： Image processing transforms input multi-level image data into output image data having a smaller number of levels (the input and output image data represents images formed of cells). The image processing distributes quantization error of a target cell of the image to neighbour cells in proportions determined by a set of weights. The distribution excludes neighbour cells whose data level is less than a threshold value from receiving distributed quantization error, or allows just a fraction of the quantization error to be distributed to such neighbour cells.
摘要翻译： 图像处理将输入的多级图像数据变换为具有较小级数的输出图像数据（输入和输出图像数据表示由单元形成的图像）。 图像处理以由一组权重确定的比例将图像的目标小区的量化误差分配给相邻小区。 该分布从接收分布式量化误差中排除其数据级别小于阈值的相邻小区，或者允许将仅一部分量化误差分配给这样的相邻小区。
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公开(公告)号：US20180220040A1
公开(公告)日：2018-08-02
申请号：US15748558
申请日：2015-10-30
发明人： Luis Garcia , Alex Andrea
IPC分类号： H04N1/409
摘要： A method is described in which a printed image which has been printed by a printer based on a printing template is repaired. A damaged area of the printed image is identified and a reprinting segment on the printed image is determined such as to overlap the identified damaged area. With the printer a layer of printing fluid is printed over the damaged image and a correction printing template is printed. The correction printing template includes a segment of the printing template that corresponds to the reprinting segment of the printed image.
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公开(公告)号：US20200269513A1
公开(公告)日：2020-08-27
申请号：US16608856
申请日：2017-11-13
发明人： Luis Garcia , Natalia Garcia , Alex Andrea
IPC分类号： B29C64/393 , B29C64/336 , B29C64/255
摘要： Examples of the present disclosure relate to a three-dimensional printing preparation controller. The controller comprises a processor, a data storage coupled to the processor and an instruction set to cooperate with the processor and the data storage. The instruction set detects a request to mix a first and a second material in a specific proportion, the first and the second material having respectively first and second characteristics; the first characteristics differing from the second characteristics, validates the request by comparing the specific proportion and the first and second characteristics with validated proportions and validated characteristics and mixes the first and second materials in the specific proportion if the request is validated to correspond to validated proportions and validated characteristics.
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公开(公告)号：US20190091936A1
公开(公告)日：2019-03-28
申请号：US16085487
申请日：2016-03-24
发明人： Pol Fornos , Manuel Freire , Luis Garcia
IPC分类号： B29C64/393 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B29C64/165 , B29C64/20
摘要： Examples of additive manufacturing are described. In one example, a method comprises generating print data to cause application of fusing agent to a first region of a layer of build material of an object undergoing additive manufacturing, the first region corresponding to an inner region of an object undergoing additive manufacturing. The print data causes application of fusing agent and detailing agent to a second region of the layer, the second layer corresponding to a middle region of the object. The print data causes application of detailing agent to a third region of the layer, the third region corresponding to an outer layer of the object. Fusing energy is applied to the layer.
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公开(公告)号：US20180259939A1
公开(公告)日：2018-09-13
申请号：US15761049
申请日：2015-12-22
IPC分类号： G05B19/4099 , B33Y80/00 , B29C64/357 , B33Y50/02 , B29C64/393
CPC分类号： G05B19/4099 , B29C64/357 , B29C64/393 , B29L2031/712 , B33Y50/02 , B33Y70/00 , B33Y80/00 , G05B2219/49023
摘要： There is provided a method of generating print data for use by an additive manufacturing system to generate a plurality of 3D objects within a build chamber having a build surface. First spatial data defining a first 3D object and second spatial data defining a second 3D object is received. First print data is generated to cause the additive manufacturing system to manufacture the first 3D object at least partly from a first build material. Intermediate print data is generated to cause the additive manufacturing system to manufacture a partition comprising a 3D object configured to fill the build chamber in a plane parallel to the build surface. Second print data is generated to cause the additive manufacturing system to manufacture the second 3D object at least partly from a second build material.
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公开(公告)号：US09906686B2
公开(公告)日：2018-02-27
申请号：US15028891
申请日：2013-10-15
CPC分类号： H04N1/4052 , G06K15/1876 , G06K15/1881
摘要： Image processing transforms input multi-level image data into output image data having a smaller number of levels (the input and output image data represents images formed of cells). The image processing distributes quantization error of a target cell of the image to neighbor cells in proportions determined by a set of weights. The distribution excludes neighbor cells whose data level is less than a threshold value from receiving distributed quantization error, or allows just a fraction of the quantization error to be distributed to such neighbor cells.
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公开(公告)号：US11639032B2
公开(公告)日：2023-05-02
申请号：US17239177
申请日：2021-04-23
发明人： Pol Fornos , Manuel Freire , Luis Garcia
IPC分类号： B29C64/393 , B29C64/165 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B29C64/20
摘要： Examples of additive manufacturing are described. In one example, a method comprises generating print data to cause application of fusing agent to a first region of a layer of build material of an object undergoing additive manufacturing, the first region corresponding to an inner region of an object undergoing additive manufacturing. The print data causes application of fusing agent and detailing agent to a second region of the layer, the second layer corresponding to a middle region of the object. The print data causes application of detailing agent to a third region of the layer, the third region corresponding to an outer layer of the object. Fusing energy is applied to the layer.
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公开(公告)号：US20190143586A1
公开(公告)日：2019-05-16
申请号：US16095189
申请日：2016-05-12
发明人： Xavier Vilajosana , Alejandro Manuel De Pena , Sergio Puigardeu Aramendia , David Ramirez Muela , Luis Garcia
IPC分类号： B29C64/165 , B29C64/386
摘要： In an example, a method includes measuring the temperature of a fused region and the temperature of an unfused region of a first layer of build material; determining a preheating setting for a subsequent layer of build material in response to the measured temperature of the unfused region of the first layer; determining a print instruction for applying print agent to the subsequent layer of build material, wherein the application of print agent prescribed by the print instruction for the subsequent layer to cause the temperature of the preheated build material to be a predetermined temperature prior to fusion in response to the measured temperature of the fused region of the first layer; forming the subsequent layer of build material; preheating the subsequent layer of build material in accordance with the preheating setting; and selectively applying the print agent onto the subsequent layer based on the print instruction.
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公开(公告)号：US20190095555A1
公开(公告)日：2019-03-28
申请号：US16080969
申请日：2016-03-18
IPC分类号： G06F17/50 , B29C64/393
摘要： In an example, a method includes analysing, using at least one processor, object model data representing at least a portion of an object to be generated by an additive manufacturing apparatus by fusing a build material to determine at least one predicted object generation temperature. The method may further include identifying, using at least one processor and from said analysing, a feature of the at least a portion of the object associated with a predicted object generation temperature which is below a fusing temperature of build material to be used in object generation. The method may further include determining, using at least one processor, modification data to be used in object generation, the modification data being to increase a temperature of the feature in object generation.
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