公开(公告)号：US20180141278A1

公开(公告)日：2018-05-24

申请号：US15816417

申请日：2017-11-17

Applicant: Autodesk, Inc.

Inventor： Brian James Adzima

IPC: B29C64/393 ,  B29C64/135 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: B29C64/393 ,  B29C64/129 ,  B29C64/135 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00 ,  B33Y50/02 ,  G06T15/10 ,  G06T2215/16

Abstract: Techniques and systems for 3D printing with machines having imperfect light projection are described. A technique includes receiving an intensity map comprising a plurality of pixel values, wherein the pixel values of the intensity map represent variations in intensity of light projection of an additive-manufacturing apparatus; receiving cross-sectional images of a three dimensional (3D) model of an object, each cross-sectional image comprising a plurality of pixel values, each pixel value of each cross-sectional image having an X-location and a Y-location; for each cross-sectional image of the 3D model, applying pixel values of the intensity map to corresponding pixel values of the cross-sectional image of the 3D model, to make one of a plurality of additive-manufacturing images that are calibrated to account for the variations in intensity of the light projection; and providing the additive-manufacturing images to the additive-manufacturing apparatus to build the object.

公开(公告)号：US20180086003A1

公开(公告)日：2018-03-29

申请号：US15719118

申请日：2017-09-28

Applicant: Autodesk, Inc.

Inventor： Richard M. Greene ,  Brian James Adzima ,  Stephen James Kranz

IPC: B29C64/393 ,  B29C64/135 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: B29C64/393 ,  B29C64/129 ,  B29C64/135 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  G06T11/00 ,  G06T17/00

Abstract: Techniques and systems for enhancing vertical edges during photopolymer-based three-dimensional (3D) printing are described. A described technique includes accessing an original image corresponding to a slice of a 3D model prepared for printing on a 3D printer; accessing a pixel reduction factor that is associated with an increased exposure duration parameter; classifying pixels of the original image; reducing intensity levels of the interior pixels by the pixel reduction factor so that corresponding printing areas receive first curing doses under the increased exposure duration parameter and the reduced intensity levels that are comparable to doses received under an unmodified exposure duration parameter and unreduced intensity levels; maintaining intensity levels of the exterior pixels so that corresponding printing areas receive second curing doses under the increased exposure duration parameter that are greater than doses associated with the unmodified exposure duration parameter; and outputting a resulting modified image for 3D printing.

公开(公告)号：US20160067921A1

公开(公告)日：2016-03-10

申请号：US14848162

申请日：2015-09-08

Applicant: Autodesk, Inc.

Inventor： Karl Willis ,  Brian James Adzima

IPC: B29C67/00

CPC classification number: B29C64/106 ,  B29C64/124 ,  B29C64/129 ,  B29C64/135 ,  B29C64/20 ,  B29C64/386 ,  B29K2105/0058 ,  B33Y10/00 ,  B33Y30/00

Abstract: Methods, systems, and apparatus, including medium-encoded computer program products, for three dimensional print adhesion reduction using photoinhibition include, in one aspect, a method including: moving a build plate in a vat of liquid including a photoactive resin; creating a photoinhibition layer within the liquid directly adjacent a window of the vat by directing a first light through the window into the liquid, the first light having a first wavelength selected to produce photoinhibition; and creating a solid structure on the build plate from the photoactive resin within a photoinitiation layer of the liquid by directing a second light through the window into the liquid, where the photoinitiation layer resides between the photoinhibition layer and the build plate, and the second light has a second wavelength different than the first wavelength.

Abstract translation: 包括中等编码计算机程序产品在内的方法，系统和装置，包括中等编码的计算机程序产品，用于使用光抑制的三维印刷附着力降低包括在一个方面包括：将构建板移动到包含光活性树脂的液体槽中; 通过将第一光引导通过窗口进入液体而在液体的窗口内直接邻近的液体中产生光抑制层，所述第一光具有选择的第一波长以产生光抑制; 以及通过将第二次光通过所述窗口引导到所述液体中，其中所述光致发光层位于所述光致抗蚀剂层和所述构建板之间，并且所述第二光 具有与第一波长不同的第二波长。

公开(公告)号：US10933588B2

公开(公告)日：2021-03-02

申请号：US15816417

申请日：2017-11-17

Applicant: Autodesk, Inc.

Inventor： Brian James Adzima

IPC: B29C64/393 ,  B29C64/135 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y30/00 ,  B33Y50/00 ,  B29C64/386 ,  B29C64/129 ,  G06T15/10

Abstract: Techniques and systems for 3D printing with machines having imperfect light projection are described. A technique includes receiving an intensity map comprising a plurality of pixel values, wherein the pixel values of the intensity map represent variations in intensity of light projection of an additive-manufacturing apparatus; receiving cross-sectional images of a three dimensional (3D) model of an object, each cross-sectional image comprising a plurality of pixel values, each pixel value of each cross-sectional image having an X-location and a Y-location; for each cross-sectional image of the 3D model, applying pixel values of the intensity map to corresponding pixel values of the cross-sectional image of the 3D model, to make one of a plurality of additive-manufacturing images that are calibrated to account for the variations in intensity of the light projection; and providing the additive-manufacturing images to the additive-manufacturing apparatus to build the object.

公开(公告)号：US20170182708A1

公开(公告)日：2017-06-29

申请号：US15374734

申请日：2016-12-09

Applicant: Autodesk, Inc.

Inventor： Pierre Pascal Anatole Lin ,  Brian James Adzima ,  Arian Aziz Aghababaie ,  Andreas Linas Bastian ,  John Vericella ,  Jonathan Pomeroy

IPC: B29C67/00 ,  B33Y80/00 ,  B33Y50/02 ,  B33Y10/00 ,  B33Y40/00

CPC classification number: B33Y40/00 ,  B29C64/129 ,  B29C64/236 ,  B29C64/336 ,  B29C64/35 ,  B33Y10/00 ,  B33Y30/00

Abstract: Methods, systems, and apparatus, including a method of multi-material stereolithographic three dimensional printing comprising, depositing a first material through a first material dispenser of a stereolithographic three dimensional printer onto an optical exposure window to form a first material layer; curing the first material layer to form a first material structure on a build head of the stereolithographic three dimensional printer; depositing a second material through the first material dispenser or a second material dispenser onto the optical exposure window to form a second material layer; and curing the second material layer to form a second material structure on the build head.