公开(公告)号：DE60306925T2

公开(公告)日：2007-03-15

申请号：DE60306925

申请日：2003-03-24

Applicant: 3D SYSTEMS INC

Inventor： JONATHAN HAYES

IPC: B29C67/00

Abstract: A method of manufacturing a part involving steps of using data derived from a slicing programme to control a manufacturing means that makes coatings that are the cross sectional slices of the required part which also contain right angles or some other edge feature that is the male or female counterpart to a feature made by a base, and, placing the coatings in the base and vibrating them, so that they settle in register onto the base's feature. In addition it is necessary the coating may be bonded together when they have been registered or as each coating is registered.

公开(公告)号：DE102006019860A1

公开(公告)日：2006-11-30

申请号：DE102006019860

申请日：2006-04-28

Applicant: 3D SYSTEMS INC

Inventor： PARTANEN JOUNI P ,  SOLIZ RAYMOND M ,  MCNAMARA DENNIS F JR ,  SPERRY CHARLES R ,  HULL CHARLES W

IPC: G06F17/50 ,  G06T17/00

Abstract: A solid imaging apparatus and method employing build material transfer means effective to transfer solidifiable liquid build material (24) from a first side of a radiation transparent build material carrier (34) to a receiving substrate without entrapping air bubbles in layers of transferred solidifiable liquid build material and to cleanly separate the solidified build material from the radiation transparent build material carrier as each layer is formed during the layerwise building of a three-dimensional object (25). An reciprocatible flexible film and a guide roller are employed to effect transfer of the solidifiable liquid build material.

公开(公告)号：DE102006010928A1

公开(公告)日：2006-11-30

申请号：DE102006010928

申请日：2006-03-09

Applicant: 3D SYSTEMS INC

Inventor： COX BRIAN DAVID

IPC: B22F3/105 ,  B29C67/04

Abstract: A method and apparatus for forming three-dimensional objects by laser sintering that includes the use of dense phase pneumatic conveying to internally recycle overflow powder, and to thoroughly blend overflow, recovered (266) and virgin powder to provide a consistent powder feed mix to a laser sintering machine (252). Overflow powder from the laser sintering machine is recovered and recycled back into the laser sintering machine (252) for reuse. The approach results in a compact and reliable powder recycle system with complete blending and minimum attrition to the handled powder.

公开(公告)号：AT333361T

公开(公告)日：2006-08-15

申请号：AT03712402

申请日：2003-03-24

Applicant: 3D SYSTEMS INC

Inventor： JONATHAN HAYES

IPC: B29C67/00

Abstract: A method of manufacturing a part involving steps of using data derived from a slicing programme to control a manufacturing means that makes coatings that are the cross sectional slices of the required part which also contain right angles or some other edge feature that is the male or female counterpart to a feature made by a base, and, placing the coatings in the base and vibrating them, so that they settle in register onto the base's feature. In addition it is necessary the coating may be bonded together when they have been registered or as each coating is registered.

公开(公告)号：DE68929541T2

公开(公告)日：2006-08-10

申请号：DE68929541

申请日：1989-04-17

Applicant: 3D SYSTEMS INC

Inventor： SPENCE STUART THOMAS ,  ALMQUIST THOMAS ,  TARNOFF HARRY L

IPC: B29C67/00 ,  G01B11/00 ,  G01J1/42 ,  G03F7/00 ,  G03F7/20 ,  G06T17/00 ,  G06T17/10 ,  G06T17/20 ,  H01S3/00

公开(公告)号：DE60120905D1

公开(公告)日：2006-08-03

申请号：DE60120905

申请日：2001-11-02

Applicant: 3D SYSTEMS INC

Inventor： PARTANEN JOUNI P ,  TANG NANSHENG ,  WU XINGKUN

IPC: G02B27/09 ,  G03F7/20 ,  B23K26/04 ,  B23K26/06 ,  B23K26/067 ,  B23K26/073 ,  B29C67/00 ,  G02B7/10 ,  G02B27/40 ,  G11B7/125 ,  G11B7/135

Abstract: An illumination system includes optics capable of adjusting the size of a beam of light and adjusting the focus of the beam of light. Spot size control optics adjusts the overall size of the beam of light and separately adjusts the ellipticity of the beam, primarily in one dimension. Light from the spot size control optics passes to focus control optics that control the overall focus of the beam of light and adjust the astigmatism of the beam by altering the focus position of the beam of light in one dimension. The laser system, the spot size control optics and the focus control optics are within an enclosure. Actuators under remote control from outside of the enclosure adjust both of the spot size control optics and focus control optics in the thermal environment of the illumination system.

公开(公告)号：DE60021440T2

公开(公告)日：2006-05-24

申请号：DE60021440

申请日：2000-02-08

Applicant: 3D SYSTEMS INC

Inventor： GUERTIN D MICHELLE ,  HULL CHARLES W ,  NGUYEN HOP D

IPC: B29C67/00 ,  B29C35/02 ,  B29C35/08 ,  B29C41/02 ,  G05B19/4099 ,  G06F17/50 ,  G06F19/00

Abstract: A rapid prototyping and manufacturing (e.g. stereolithography) method and apparatus for making three-dimensional objects on a layer-by-layer basis by selectively exposing layers of material to prescribed synergistic stimulation including forming portions of a lamina using a first exposure (52), allowing a time delay (54), and then applying a second exposure (56). The time delay is sufficient to allow shrinkage of the material to occur that results from the first exposure. It is preferred that the solidified portion resulting from the first exposure does not adhere to the previously formed lamina. It is also preferred that the portion solidified by this first exposure does not adhere to any boundary region that may have been exposed and adhered to the previously formed lamina. The time delay associated with a given cross-sectional region may be occupied by exposing other cross-sectional regions. The delay may occur between two exposures of overlaying hatch or fill vectors. The delay may alternatively occur between exposure of hatch vectors and boundary vectors. The time delay may be determined by a clock, or alternatively, the time delay may be considered to have lapsed upon certain physical conditions being met, such as detecting the amount of shrinkage and determining that it has progressed far enough for the second exposure to occur.

公开(公告)号：DE60020895T2

公开(公告)日：2006-05-11

申请号：DE60020895

申请日：2000-02-08

Applicant: 3D SYSTEMS INC

Inventor： KEREKES THOMAS ,  BEERS ROSS D

IPC: G03F7/20 ,  G05B19/4099 ,  B29C67/00 ,  B29K105/32

Abstract: A rapid prototyping and manufacturing (e.g. stereolithography) method and apparatus for producing three-dimensional objects by selectively subjecting a liquid or other fluid-like material to a beam of prescribed stimulation. In a preferred embodiment a source (70) of prescribed stimulation is controlled to reduce or inhibit the production of the prescribed stimulation during at least some periods when the prescribed stimulation is not needed to expose the material. In another preferred embodiment, the source (20) of stimulation is controlled to vary the quantity of prescribed stimulation that is produced and allowed to reach the material. In an additional preferred embodiment control of laser output occurs based on a combination of supplying a regulated amount of voltage to an AOM (72) in conjunction with temporary sensing (84) of laser power and a known desired power to attain. In a further preferred embodiment, a quantity of prescribed stimulation may be set by consideration of desired solidification depths to be used, beam profile characteristics, material properties, and scanning speed limitations for different data types. In a still further preferred embodiment, a transition between selected consecutive exposure vectors is performed by scanning one or more interposed non-exposure vectors with the beam inhibited from reaching the building material.

公开(公告)号：DE102005026884A1

公开(公告)日：2006-03-23

申请号：DE102005026884

申请日：2005-06-10

Applicant: 3D SYSTEMS INC

Inventor： CHUNG TAE MARK ,  PARTANEN JOUNI P

IPC: B22F3/105 ,  B23K26/34 ,  B29C35/08 ,  B29C67/00 ,  G01J5/52

Abstract: An apparatus and a method of using the apparatus wherein a radiation emitter (140) is positioned adjacent a sensor means (142,144,145) within a process chamber (102) in a laser sinter system (100) that emits radiation to the sensor means and a calibration means receives readings from the sensor means (142,144,145) to compare temperature sensings received from the sensor means with set emission signals from the radiation emitter (140) to adjust the temperature sensings to thereby calibrate the sensor means during the forming of a three-dimensional article. The calibration is done repeatedly during the build process of the three-dimensional article (Fig. 1).

公开(公告)号：HK1077541A1

公开(公告)日：2006-02-17

申请号：HK05109438

申请日：2005-10-24

Applicant: 3D SYSTEMS INC

Inventor： BREDT JAMES F ,  CLARK SARAH ,  GILCHRIST GREITA

IPC: B29C20060101 ,  B27N3/02 ,  B28B20060101 ,  B29C41/02 ,  B29C67/00 ,  B29K20060101 ,  B29K105/00 ,  C04B20060101 ,  C04B28/14 ,  C04B28/30 ,  C04B28/34

Abstract: The present invention is directed to a three-dimensional printing system and method, and an article made therefrom. The method of the present invention includes building cross-sectional portions of a three dimensional article, and assembling the individual cross-sectional areas in a layer-wise fashion to form a final article. The individual cross-sectional areas are built using an ink-jet printhead to deliver an aqueous fluid to a particle material that includes a first particulate material, a second particulate material, and a third particulate material, wherein the first and second particulate materials react in the presence of the fluid in a period of time, and the third particulate material reacts in the presence of the fluid to form a solid in a longer period of time.