公开(公告)号：US20220288862A1

公开(公告)日：2022-09-15

申请号：US17637547

申请日：2019-10-30

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Quim MUNTAL DIAZ ,  Jordi SANROMA GARRIT ,  Josep M. ASENSIO BUCHACA

IPC: B29C64/393 ,  G06F30/27

Abstract: In an example, a method includes determining a training dataset for an inference model to evaluate spatial arrangements of objects to be generated in additive manufacturing. Determining the training dataset may include obtaining, by at least one processor, a temperature distribution for each of a plurality of spatial arrangements of objects to be generated in additive manufacturing. The method may further include obtaining, using at least one processor, an indication of thermal interaction for each spatial arrangement based on the obtained temperature distribution.

公开(公告)号：US20210349440A1

公开(公告)日：2021-11-11

申请号：US17267389

申请日：2019-01-31

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Victor DIEGO GUTIERREZ ,  Jordi SANROMA GARRIT ,  Manuel FREIRE GARCIA ,  Enrique GURDIEL GONZALEZ

IPC: G05B19/4099 ,  B33Y50/00 ,  B29C64/386 ,  B22F10/80

Abstract: In an example, a method includes receiving, at least one processor, object model data representing at least a portion of an object that is to be generated by an additive manufacturing apparatus by fusing build material within a fabrication chamber, wherein the object model data comprises a mesh model comprising data describing a surface of the object. A geometrical compensation vector may be determined for the object model data, the geometrical compensation vector having a first component applying to a first axis of the fabrication chamber and a second component applying to a second axis of the fabrication chamber. A geometrical compensation to apply to at least one location on the surface of the object may be determined by determining a product of the geometrical compensation vector and a vector indicative of the normal of the object surface at the location and the determined geometrical compensation may be applied to the object model data to generate modified object model data.

公开(公告)号：US20210339478A1

公开(公告)日：2021-11-04

申请号：US17252321

申请日：2019-01-23

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Sergio GONZALEZ MARTIN ,  Manuel FREIRE GARCIA ,  Jordi SANROMA GARRIT

IPC: B29C64/393 ,  B29C64/20 ,  G06K15/02

Abstract: An apparatus has a processor and a machine-readable storage medium storing machine-readable instructions executable by the processor. The machine-readable instructions cause the processor to, upon obtaining an indication that a calibration of a 3D printing machine is to be performed, arrange user calibration objects to be printed and calibration objects to be printed and to be used in the calibration in a virtual build volume. Arranging calibration objects in the virtual build volume comprises arranging the calibration objects at print job specific locations reserved for calibration objects and/or replacing user objects with calibration objects.