公开(公告)号：JP2000141495A

公开(公告)日：2000-05-23

申请号：JP37376999

申请日：1999-12-28

Applicant: 3 D SYSTEMS INC

Inventor： THOMAS O ORUMUKISUTO ,  CHARLES W HULL ,  BORUZO MODOREKU ,  SERKUCZEWSKI ANDRZEJ R ,  PAUL F JACOB ,  CHARLES W LEWIS ,  MARK A LOUIS ,  ABRAHAM RIRAN

IPC: B29C67/00 ,  B29C35/08

Abstract: PROBLEM TO BE SOLVED: To more accurately form a layer thickness in a three-dimensional shaping method to form a three-dimensional article from a plurality of layers continuously formed from a curable polymerizable liquid by exposing with a curing means such as a laser beam or the like. SOLUTION: The three-dimensional shaping method comprises the steps of removing an excess polymerizable liquid 302 from a layer of the liquid, sweeping a smoothing member 300 while maintaining a value of a gap between a lower side face of the member and an upper side face of the layer formed ahead of the article larger than a desired layer thickness to be formed in the case of sweeping the member 300 on the layer of the liquid to form a desired thickness layer or sweeping the member 300 at a surface above the upper surface of the layer.

公开(公告)号：JP2001287272A

公开(公告)日：2001-10-16

申请号：JP2001069484

申请日：2001-03-12

Applicant: 3 D SYSTEMS INC

Inventor： THOMAS O ORUMUKISUTO ,  CHARLES W HULL ,  BORUZO MODOREKU ,  SERKUCZEWSKI ANDRZEJ R ,  PAUL F JACOB ,  CHARLES W LEWIS ,  MARK A LOUIS ,  ABRAHAM RIRAN

IPC: B29C35/08 ,  B29C41/12 ,  B29C67/00 ,  B29K105/24 ,  G01F23/292 ,  G01F23/36 ,  G05D9/12

Abstract: PROBLEM TO BE SOLVED: To shorten the cycle time of each of layers formed at the time of manufacture of three-dimensional matter. SOLUTION: A large quantity of a polymerizable liquid 11 is held on the previously formed layer of the three-dimensional matter 40 and the excessive polymerizable liquid 11 on the previously formed layer is swept and removed by a smoothing member 26. The exposure to a means for curing the polymerizable liquid 11 is delayed until the sweeping by the smoothing member 26 is completed. Thereafter, the curing means is selectively applied to the layer of the polymerizable liquid 11 in order to cure a part of the polymerizable liquid 11 adjusted to desired layer thickness by sweeping to form the next layer of the three-dimensional matter 40 on the previously formed layer of the matter 40. This operation is repeated plural times to form the three- dimensional matter 40 having the cured layer of the polymerizable liquid 11 continuously formed thereon.

公开(公告)号：JP2000141496A

公开(公告)日：2000-05-23

申请号：JP2000000410

申请日：2000-01-05

Applicant: 3 D SYSTEMS INC

Inventor： THOMAS O ORUMUKISUTO ,  CHARLES W HULL ,  BORUZO MODOREKU ,  SERKUCZEWSKI ANDRZEJ R ,  PAUL F JACOB ,  CHARLES W LEWIS ,  MARK A LOUIS ,  ABRAHAM RIRAN

IPC: B29C35/08 ,  B29C41/12 ,  B29C67/00 ,  B29K105/24 ,  G01F23/292 ,  G01F23/36 ,  G05D9/12

Abstract: PROBLEM TO BE SOLVED: To shorten a cycle time of each layer formed in the case of manufacturing a three-dimensional article. SOLUTION: The three-dimensional shaping method comprises the steps of holding a large quantity of polymerizable liquid 11 on a layer formed ahead of a three-dimensional article 40, and sweeping a smoothing member 26 to remove the excess liquid 11 on the layer formed previously. Then, the liquid 11 is exposed with a curing means, and delayed until the sweeping of the member 26 is completed. Thereafter, to cure part of the liquid 11 swept at the desired layer thickness, a curing means is selectively executed at the layer of the liquid 11, and then next layer of the article 40 is formed on a layer formed previously at the article 40. This is repeated plural times to form the article 40 formed continuously with the layer cured with the liquid 11.

公开(公告)号：JP2001287273A

公开(公告)日：2001-10-16

申请号：JP2001069485

申请日：2001-03-12

Applicant: 3 D SYSTEMS INC

Inventor： THOMAS O ORUMUKISUTO ,  CHARLES W HULL ,  BORUZO MODOREKU ,  SERKUCZEWSKI ANDRZEJ R ,  PAUL F JACOB ,  CHARLES W LEWIS ,  MARK A LOUIS ,  ABRAHAM RIRAN

IPC: B29C67/00

Abstract: PROBLEM TO BE SOLVED: To precisely measure the level of a liquid medium of an apparatus for shaping three-dimensional matter with high reliability. SOLUTION: In a device for measuring the liquid level of the fluid medium in the container of the apparatus for shaping the three-dimensional matter from the fluid medium curable by synergestic stimulation, a first tank 10 containing the fluid medium, a second tank 16 connected to the first tank 10 so that at least the liquid surface of the fluid medium in the second tank 16 is separated from the liquid surface 20 of the fluid medium in the first tank 10, a source 21 generating beam of non-synergistic electromagnetic radiation as a means for measuring the liquid surface 20 of the fluid medium of the first tank 10, a beam directing means and a sensor 22 changing a signal in response to the movement of electromagnetic beam incident on the sensor over the whole thereof are provided.

公开(公告)号：JP2000141494A

公开(公告)日：2000-05-23

申请号：JP37376899

申请日：1999-12-28

Applicant: 3 D SYSTEMS INC

Inventor： THOMAS O ORUMUKISUTO ,  CHARLES W HULL ,  BORUZO MODOREKU ,  SERKUCZEWSKI ANDRZEJ R ,  PAUL F JACOB ,  CHARLES W LEWIS ,  MARK A LOUIS ,  ABRAHAM RIRAN

IPC: B29C35/08 ,  B29C67/00

Abstract: PROBLEM TO BE SOLVED: To precisely measure level of a liquid medium of three-dimensional shaping apparatus with high reliability. SOLUTION: A device for measuring a liquid level of a fluid medium in a container of the three-dimensional shaping apparatus a three-dimensional article from the medium curable by synergistic stimulus has a first tank 10 for containing the medium, a second tank 16 connected the tank 10 having at least a level of the medium in the tank 16 isolated from a level 20 of the medium in the tank 10, a source 21 for generating a beam of a non-synergistic electromagnetic radiation as a means for measuring the level 20 of the medium of the first tank 10, a means for direction the beam, and a sensor 22 for changing a signal according to a movement of an electromagnetic beam incident over the entire sensor.