WO2001053105A2 - System and method for three dimensional model printing - Google Patents

System and method for three dimensional model printing Download PDF

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Publication number
WO2001053105A2
WO2001053105A2 PCT/IL2001/000043 IL0100043W WO0153105A2 WO 2001053105 A2 WO2001053105 A2 WO 2001053105A2 IL 0100043 W IL0100043 W IL 0100043W WO 0153105 A2 WO0153105 A2 WO 0153105A2
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WO
WIPO (PCT)
Prior art keywords
interface
curing
roller
leveling
printing
Prior art date
Application number
PCT/IL2001/000043
Other languages
French (fr)
Other versions
WO2001053105A3 (en
Inventor
Hanan Gothait
Original Assignee
Objet Geometries Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Objet Geometries Ltd. filed Critical Objet Geometries Ltd.
Priority to AU2001225453A priority Critical patent/AU2001225453A1/en
Publication of WO2001053105A2 publication Critical patent/WO2001053105A2/en
Publication of WO2001053105A3 publication Critical patent/WO2001053105A3/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B29C64/112—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/188—Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes

Definitions

  • This present invention relates to three-dimensional (3-D) modeling in general and to a system and a method for controlling the height and thickness of printed layers, in particular.
  • 3-D printing which works by building parts in layers, is a process used for the building up of 3-D models.
  • 3-D printing is relatively speedy and flexible allowing for the production of prototype parts and tooling directly from a CAD model, for example.
  • 3-D printing enables the manufacturer to obtain a full 3-D model of any proposed product before tooling thereby possibly substantially reducing the cost of tooling and leading to a better synchronization between design and manufacturing. A lower product cost and improved product quality can also be obtained.
  • US Patent No. 5,387,380 to Cima et al. describes a technique for providing layered parts by depositing a layer of powder material and then depositing a binder material in selected regions to produce a layer of bonded powder material at the selected regions. These steps are repeated for successive layers to form a desired component. Following heat treatment, unbound powder is removed, leaving the fabricated part.
  • US Patent No. 5,287,435 to Cohen et al describes apparatus for producing
  • 3-D models which includes apparatus for depositing layer-by-layer, a photopolymer material in a selectable configuration and apparatus for curing each layer prior to deposition of the succeeding layer.
  • US Patent No. 5,287,435 utilizes a machining unit for trimming the surface of each layer to remove excessive thickness.
  • the ink jet printer prints parallel ink dot lines on a substrate by displacing its print head relative to a substrate in one direction during the actuation of its ink jet heads.
  • US Patent Application No: 09/259323 to the Assignees of the present application, and incorporated herein by reference there is described an apparatus and a method for 3-D model printing.
  • U.S. Patent Application 09/259323 describes apparatus including a printing head having a plurality of nozzles, a dispenser connected to the printing head for selectively dispensing interface material in layers and curing apparatus for optionally curing each of the layers deposited. The depth of each deposited layer is controllable by selectively adjusting the output from each of the plurality of nozzles.
  • the present invention provides a system and a method for printing of
  • the present invention a method for printing of a three-dimensional model. The method
  • one printing head to form at least one interface layer
  • the interface material includes first and second interface material
  • the method further includes the steps of:
  • the step of leveling includes the step of removing surplus material from each layer of dispensed interface material utilizing a roller.
  • the step of leveling further includes the steps of cleaning and curing the surplus material off the roller.
  • a system for three-dimensional printing of a three-dimensional model includes at least one printing head for dispensing a pre-determined quantity of interface material to form at least one interface layer, leveling apparatus for removing surplus material from the at least one interface layer prior to curing, curing apparatus for curing the leveled interface layer, and a controller connected to the leveling apparatus for controlling the height of each of the at least one interface layer.
  • the printing head includes first and second printing heads for dispensing first and second interface materials respectively from first and second dispenser connected thereto respectively.
  • the curing apparatus includes a first curing apparatus for curing the first interface material for a first period of time and at a first radiation wavelength; and a second curing apparatus for curing the second interface material for a second period of time and at a second radiation wavelength.
  • the interface layer is a photopolymer material curable by the application of ultra-violet or infra-red radiation.
  • the leveling apparatus includes a roller rotatable about a longitudinal axis, the roller being operative to make contact with the at least one interface layer; and a sensing device embedded within the roller operative to detect the contact of the roller with the interface layers.
  • the system further includes cleaning apparatus connected to the controller for cleaning the leveling apparatus and waste disposal apparatus for disposing of the waste interface material.
  • the waste disposal apparatus includes curing apparatus using ultra-violet or infra-red radiation.
  • the outer circumferential surface of the roller includes grinding material.
  • apparatus for controlling the finished height of interface layers deposited during the printing of a three-dimensional model.
  • the apparatus includes a roller rotatable about a longitudinal axis, the roller being operative to make contact with the deposited interface layers, a sensing device embedded within the roller operative to detect the contact of the roller with the interface layers, and a processor for processing the output from the sensing device.
  • the output from the sensing device is indicative of the height and width of interface material protruding above a pre-determined level.
  • FIG. 1 is a schematic illustration of a 3-D printing system, constructed and operative in accordance with a preferred embodiment of the present invention
  • Fig. 2 is a schematic elevational view of the height control and sensing apparatus usuable with the printing system of Fig. 1;
  • Fig. 3A is a schematic illustration of an interface layer
  • Fig. 3B is a graphical representation of the sound picked up by the height control and sensing apparatus of Fig. 2.
  • Fig. 1 is a schematic illustration of a 3-D
  • the 3-D printing system 10 constructed and operative in accordance with a preferred embodiment of the present invention.
  • the 3-D printing system 10 is similar to the 3-D printing system, described in US Patent Application No:
  • the 3-D printing system 10 comprises a printing head 12 having a plurality of ink-jet nozzles 14, through which interface material 16 is jetted and a curing unit
  • the interface material 16 is preferably a photopolymer, containing
  • UV ultra violet
  • IR infra-red
  • reactive acrylates is suitable for UV curing or hardening by the application of UV
  • the 3-D component 20 is build up in layers, the
  • each layer being controllable by selectively adjusting the output from each
  • the 3-D printing system 10 further comprises a dispenser 22, a process
  • controller 24 is coupled to CAD system 26, curing unit 18 and printing head 12.
  • the dispenser 22, which contains interface material 16, is suitably
  • the 3-D component 20 is formed on a support
  • the 3-D printing system 10 further comprises a height control and sensing apparatus generally referenced 40, which is coupled to the process controller 24.
  • Fig. 2 is a schematic elevational view of the height control and sensing apparatus 40 Also shown is an exaggerated enlarged detail of an interface layer 42.
  • Height control and sensing apparatus 40 comprises a, roller 46, rotatable about a longitudinal axis 48, and a sensing device 44, embedded within the roller 46.
  • the roller 46 is connected to a suitable motor (not shown), such as a stepper or DC motor, and coupled to the process controller 24.
  • the roller 46 is operative to make contact with the interface layer 42 and to remove surplus material from a layer.
  • the roller 46 may be set to any pre-determined level so as to remove up to a specific amount of surplus interface material.
  • each interface layer 42 is approximately 25 ⁇
  • the roller 46 is set to remove up to 10 ⁇ .
  • model building includes the building-up of three layers, followed by cleaning of the topmost layer using the roller 46 and then curing.
  • the roller 46 is cleaned by any suitable device such as a knife (not shown) known in the art and the waste material is disposed off.
  • the cleaning apparatus may comprise any suitable apparatus such as a cleaning roller or brushes connected to the process controller 24, cleaning fluid dispenser and waste disposal apparatus.
  • the cleaning roller or brushes are coated with cleaning fluid and cleaning take place after removal of any protrusions and before the application of the subsequent interface layer 42.
  • UV or IR curing converts the photopolymer chemical material into a solid and thus effectively neutralizes the properties of the photopolymer.
  • any residue material attached to the roller 46 and cleaning knife can also be neutralized by curing.
  • UV or IR curing can be used a environmentally safe system for neutralizing waste photopolymer material.
  • the sensing device 44 is operative to detect the contact of the roller 46 with the interface layer 42.
  • the sensing device 44 is configured to audibly indicate the roller's contact with the interface material.
  • the sensing device 44 indicates the presence of the peak or protrusion by a 'louder' sound due to the roller's longer contact with the interface layer 42.
  • An absence of material (such as the trough 56) is indicated by the lack of any sound emitted by the sensing device 44.
  • the 'contact' (or lack of contact) is continuously processed by the process controller 24 thereby to determine the contour of the interface layer 42.
  • the desired finished level of the interface layer 42 is shown by the dashed line, reference 52. It will be appreciated that the reference to interface layer 42 is not restricted to a single layer but may be comprise one or more layers (such as three layers in the example above). A single layer is shown in interface layer 42 for clarity.
  • the interface layer 42 does not have a consistent thickness along its entire length and may comprise a plurality of peaks (or ripples) 54 and troughs 56.
  • peaks, (referenced 54) are approximately level with reference line 52. Peaks projecting above line 52 are referenced by suffix, for example 54A and 54B.
  • the roller 46 passes makes contact with the interface layer 42, the sound emitted changes, the peak 54A emitting a 'louder' sound than peak 54B and peak 54B emitting a 'louder' sound than peak 54, while the troughs 56 are indicated by the absence of a sound.
  • the outer circumferential surface of the roller 46 comprises carborundum or other grinding material suitable for trimming the surface of the interface layer 42 to remove excessive thickness.
  • the height control and sensing apparatus 40 is shown some distance above the interface layer 42. It will be appreciated that the height control and sensing apparatus 40 may be adjusted to any position in accordance with the 3-D model being printed.
  • FIG. 3A and 3B illustrate the use of the height control and sensing apparatus 40 for controlling the finished height (or depth) of an interface layer, referenced 60, schematically illustrated in Fig. 3A.
  • Fig. 3B is a graphical representation of the sound level as the roller 46 makes contact with the interface layer 60.
  • the vertical axis represents the intensity level (Db) of the sound and the horizontal axis represents the time.
  • the height of the peak correlates with the Db level recorded and the time period at a particular Db level correlates with the width of the peak.
  • interface layer 60 determines the parameters, of interface layer 60, such as the amplitude, height and width of the peaks can also be determined to obtain a profile of the interface layer 60.
  • peaks 62a, 62b and 62d are approximately the same level (reference line 66) while peaks 62c and 62e project above reference line 68.
  • the process controller 24 will receive input from the sensing device 44 indicating a plurality of peaks, of which peak 62c will stand out.
  • the process controller 24 is programmable to determine the cross-sectional elevation of the interface layer 60 from the sound signals received and thus determine the height of each of the peaks.
  • the programmed algorithm determines the level to which roller 46 is to be lowered.
  • the roller 46 may not be used to remove these protrusions for this interface layer 60.
  • the roller 46 (dashed outline) is lowered to reference level 68.
  • roller 46 is lowered to reference level 66 to remove the plurality of protrusions.

Abstract

A system and a method for printing of three-dimensional models and apparatus for controlling the height and thickness of the layers of interface material forming the 3-D models being printed, is provided. The method includes the steps of dispensing a pre-determined quantity of interface material from at least one printing head to form at least one interface layer; leveling the dispensed interface material to a pre-determined height; curing the leveled interface material; and repeating the steps of dispensing, leveling and curing thereby producing a plurality of interface layers to a configured pattern layer for forming the three-dimensional model.

Description

SYSTEM AND METHOD FOR THREE DIMENSIONAL MODEL PRINTING
FIELD OF THE INVENTION
This present invention relates to three-dimensional (3-D) modeling in general and to a system and a method for controlling the height and thickness of printed layers, in particular.
BACKGROUND OF THE INVENTION
3-D printing, which works by building parts in layers, is a process used for the building up of 3-D models. 3-D printing is relatively speedy and flexible allowing for the production of prototype parts and tooling directly from a CAD model, for example.
Using 3-D printing enables the manufacturer to obtain a full 3-D model of any proposed product before tooling thereby possibly substantially reducing the cost of tooling and leading to a better synchronization between design and manufacturing. A lower product cost and improved product quality can also be obtained.
Various systems have been developed for computerized 3-D printing. Known systems include a system developed by 3-D Systems Inc. of California, USA. which operates on the basis of stereo-lithography wherein a focused ultra-violet laser is scanned over the top of a bath of photopolymerizable liquid polymer plastic material. The surface of the bath is polymerized on contact with the UV laser creating a solid plastic layer at or just below the surface
US Patent No. 5,387,380 to Cima et al. describes a technique for providing layered parts by depositing a layer of powder material and then depositing a binder material in selected regions to produce a layer of bonded powder material at the selected regions. These steps are repeated for successive layers to form a desired component. Following heat treatment, unbound powder is removed, leaving the fabricated part. US Patent No. 5,287,435 to Cohen et al describes apparatus for producing
3-D models which includes apparatus for depositing layer-by-layer, a photopolymer material in a selectable configuration and apparatus for curing each layer prior to deposition of the succeeding layer.
A disadvantage of this system is that it is difficult to achieve a fiat uniform surface for each layer. US Patent No. 5,287,435 utilizes a machining unit for trimming the surface of each layer to remove excessive thickness.
In standard two-dimensional printing, the ink jet printer prints parallel ink dot lines on a substrate by displacing its print head relative to a substrate in one direction during the actuation of its ink jet heads. In US Patent Application No: 09/259323 to the Assignees of the present application, and incorporated herein by reference, there is described an apparatus and a method for 3-D model printing. U.S. Patent Application 09/259323 describes apparatus including a printing head having a plurality of nozzles, a dispenser connected to the printing head for selectively dispensing interface material in layers and curing apparatus for optionally curing each of the layers deposited. The depth of each deposited layer is controllable by selectively adjusting the output from each of the plurality of nozzles.
In US Patent Application No: 09/412,618 to the Assignees of the present application, and incorporated herein by reference, there is described an apparatus and a method for 3-D model printing. U.S. Patent Application 09/412,618 describes a system and a method for printing complex 3-D models by using interface material having different hardness or elasticity and mixing the interface material from each of the printing heads to control the hardness of the material forming the 3-D model.
SUMMARY OF THE INVENTION
The present invention provides a system and a method for printing of
three-dimensional models and for controlling the height and thickness of the layers
of interface material forming the 3-D models being printed.
There is thus provided, in accordance with a preferred embodiment of the
present invention, a method for printing of a three-dimensional model. The method
includes the steps of: dispensing a pre-determined quantity of interface material from at least
one printing head to form at least one interface layer;
leveling the dispensed interface material to a pre-determined height; curing the leveled interface material; and
repeating the steps of dispensing, leveling and curing thereby producing a
plurality of interface layers to a configured pattern layer for forming the
three-dimensional model. Furthermore, in accordance with a preferred embodiment of the present invention, the interface material includes first and second interface material
dispensed from first and second printing heads, respectively.
In addition, in accordance with a preferred embodiment of the present
invention, the method further includes the steps of:
curing the first interface material for a first period of time and at a first
radiation wavelength; and curing the second interface material for a second period of time and at a
second radiation wavelength. Furthermore, in accordance with a preferred embodiment of the present invention, the step of leveling includes the step of removing surplus material from each layer of dispensed interface material utilizing a roller. The step of leveling further includes the steps of cleaning and curing the surplus material off the roller. Additionally, there is also provided, in accordance with a preferred embodiment of the present invention, a system for three-dimensional printing of a three-dimensional model, The system includes at least one printing head for dispensing a pre-determined quantity of interface material to form at least one interface layer, leveling apparatus for removing surplus material from the at least one interface layer prior to curing, curing apparatus for curing the leveled interface layer, and a controller connected to the leveling apparatus for controlling the height of each of the at least one interface layer.
Furthermore, in accordance with a preferred embodiment of the present invention, the printing head includes first and second printing heads for dispensing first and second interface materials respectively from first and second dispenser connected thereto respectively.
Furthermore, in accordance with a preferred embodiment of the present invention, the curing apparatus includes a first curing apparatus for curing the first interface material for a first period of time and at a first radiation wavelength; and a second curing apparatus for curing the second interface material for a second period of time and at a second radiation wavelength.
Furthermore, in accordance with a preferred embodiment of the present invention, the interface layer is a photopolymer material curable by the application of ultra-violet or infra-red radiation. In addition, in accordance with a preferred embodiment of the present invention, the leveling apparatus includes a roller rotatable about a longitudinal axis, the roller being operative to make contact with the at least one interface layer; and a sensing device embedded within the roller operative to detect the contact of the roller with the interface layers.
Furthermore, in accordance with a preferred embodiment of the present invention, the system further includes cleaning apparatus connected to the controller for cleaning the leveling apparatus and waste disposal apparatus for disposing of the waste interface material. The waste disposal apparatus includes curing apparatus using ultra-violet or infra-red radiation.
Furthermore, in accordance with a preferred embodiment of the present invention, the outer circumferential surface of the roller includes grinding material.
Additionally, there is also provided, in accordance with a preferred embodiment of the present invention, apparatus for controlling the finished height of interface layers deposited during the printing of a three-dimensional model. The apparatus includes a roller rotatable about a longitudinal axis, the roller being operative to make contact with the deposited interface layers, a sensing device embedded within the roller operative to detect the contact of the roller with the interface layers, and a processor for processing the output from the sensing device. The output from the sensing device is indicative of the height and width of interface material protruding above a pre-determined level. BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will be understood and appreciated more fully from the following detailed description taken in conjunction with the appended drawings in which: Fig. 1 is a schematic illustration of a 3-D printing system, constructed and operative in accordance with a preferred embodiment of the present invention;
Fig. 2 is a schematic elevational view of the height control and sensing apparatus usuable with the printing system of Fig. 1;
Fig. 3A is a schematic illustration of an interface layer; and Fig. 3B is a graphical representation of the sound picked up by the height control and sensing apparatus of Fig. 2.
DETAILED DESCRIPTION OF THE PRESENT INVENTION
Reference is made to Fig. 1 , which is a schematic illustration of a 3-D
printing system, generally designated 10, constructed and operative in accordance with a preferred embodiment of the present invention. The 3-D printing system 10, is similar to the 3-D printing system, described in US Patent Application No:
09/259,323, assigned to the Assignees of the present application and incorporated
herein by reference.
The 3-D printing system 10 comprises a printing head 12 having a plurality of ink-jet nozzles 14, through which interface material 16 is jetted and a curing unit
18 for curing the interface material 16 to form the 3-D component, referenced 20,
being designed. The interface material 16 is preferably a photopolymer, containing
ultra violet (UV) or infra-red (IR) curable material. For example, material based on
reactive acrylates is suitable for UV curing or hardening by the application of UV
radiation from curing unit 18. The 3-D component 20 is build up in layers, the
depth of each layer being controllable by selectively adjusting the output from each
of the plurality of ink-jet nozzles 14.
The 3-D printing system 10 further comprises a dispenser 22, a process
controller 24 and a Computer Aided Design (CAD) system 26. The process
controller 24 is coupled to CAD system 26, curing unit 18 and printing head 12.
The dispenser 22, which contains interface material 16, is suitably
connected to printing head 12. The 3-D component 20 is formed on a support
surface 28, which can be optionally positioned in the Z- and Y- axes by positioning
apparatus 30. The 3-D printing system 10 further comprises a height control and sensing apparatus generally referenced 40, which is coupled to the process controller 24.
Reference is now made to Fig. 2 which is a schematic elevational view of the height control and sensing apparatus 40 Also shown is an exaggerated enlarged detail of an interface layer 42.
Height control and sensing apparatus 40 comprises a, roller 46, rotatable about a longitudinal axis 48, and a sensing device 44, embedded within the roller 46. The roller 46 is connected to a suitable motor (not shown), such as a stepper or DC motor, and coupled to the process controller 24. The roller 46 is operative to make contact with the interface layer 42 and to remove surplus material from a layer. The roller 46 may be set to any pre-determined level so as to remove up to a specific amount of surplus interface material.
In an exemplar embodiment, each interface layer 42 is approximately 25μ
thick and the roller 46 is set to remove up to 10μ. Preferably, the sequence of
model building includes the building-up of three layers, followed by cleaning of the topmost layer using the roller 46 and then curing. The roller 46 is cleaned by any suitable device such as a knife (not shown) known in the art and the waste material is disposed off.
The cleaning apparatus may comprise any suitable apparatus such as a cleaning roller or brushes connected to the process controller 24, cleaning fluid dispenser and waste disposal apparatus. Preferably, the cleaning roller or brushes are coated with cleaning fluid and cleaning take place after removal of any protrusions and before the application of the subsequent interface layer 42. UV or IR curing converts the photopolymer chemical material into a solid and thus effectively neutralizes the properties of the photopolymer. Thus, any residue material attached to the roller 46 and cleaning knife can also be neutralized by curing. Thus, it will be appreciated that as a by-product of the printing system 10, UV or IR curing can be used a environmentally safe system for neutralizing waste photopolymer material.
The sensing device 44 is operative to detect the contact of the roller 46 with the interface layer 42. In a preferred embodiment, the sensing device 44 is configured to audibly indicate the roller's contact with the interface material. As the roller 46 makes contact with a peak, the sensing device 44 indicates the presence of the peak or protrusion by a 'louder' sound due to the roller's longer contact with the interface layer 42. An absence of material (such as the trough 56) is indicated by the lack of any sound emitted by the sensing device 44. The 'contact' (or lack of contact) is continuously processed by the process controller 24 thereby to determine the contour of the interface layer 42.
The desired finished level of the interface layer 42 is shown by the dashed line, reference 52. It will be appreciated that the reference to interface layer 42 is not restricted to a single layer but may be comprise one or more layers (such as three layers in the example above). A single layer is shown in interface layer 42 for clarity.
In practice, the interface layer 42 does not have a consistent thickness along its entire length and may comprise a plurality of peaks (or ripples) 54 and troughs 56. In the example, peaks, (referenced 54) are approximately level with reference line 52. Peaks projecting above line 52 are referenced by suffix, for example 54A and 54B.
Thus, as the roller 46 passes makes contact with the interface layer 42, the sound emitted changes, the peak 54A emitting a 'louder' sound than peak 54B and peak 54B emitting a 'louder' sound than peak 54, while the troughs 56 are indicated by the absence of a sound.
In an alternative preferred embodiment, the outer circumferential surface of the roller 46 comprises carborundum or other grinding material suitable for trimming the surface of the interface layer 42 to remove excessive thickness. For the purposes of clarity, the height control and sensing apparatus 40 is shown some distance above the interface layer 42. It will be appreciated that the height control and sensing apparatus 40 may be adjusted to any position in accordance with the 3-D model being printed.
Reference is now made to Figs. 3A and 3B to illustrate the use of the height control and sensing apparatus 40 for controlling the finished height (or depth) of an interface layer, referenced 60, schematically illustrated in Fig. 3A.
In the example, there are a plurality of peaks, referenced 62a, 62b...62f and a plurality of troughs 64a, 64b, etc. Fig. 3B is a graphical representation of the sound level as the roller 46 makes contact with the interface layer 60. The vertical axis represents the intensity level (Db) of the sound and the horizontal axis represents the time. The height of the peak correlates with the Db level recorded and the time period at a particular Db level correlates with the width of the peak.
Thus, it is possible to determine the parameters, of interface layer 60, such as the amplitude, height and width of the peaks can also be determined to obtain a profile of the interface layer 60.
In the example of Fig. 3A, peaks 62a, 62b and 62d are approximately the same level (reference line 66) while peaks 62c and 62e project above reference line 68. As the roller 46 passes over interface layer 60, the process controller 24 will receive input from the sensing device 44 indicating a plurality of peaks, of which peak 62c will stand out. The process controller 24 is programmable to determine the cross-sectional elevation of the interface layer 60 from the sound signals received and thus determine the height of each of the peaks. The programmed algorithm then determines the level to which roller 46 is to be lowered. Thus, for example, if protrusions below a pre-determined are acceptable, the roller 46 may not be used to remove these protrusions for this interface layer 60. In the example of Fig. 3B, if the protrusions below height hi are acceptable, only peak 62c needs to be ground down. In this case, the roller 46 (dashed outline) is lowered to reference level 68.
Alternatively, if height h and also the number of protrusions N (say, where n> 3) is the determining factor, roller 46 is lowered to reference level 66 to remove the plurality of protrusions.
It will be further appreciated that the present invention is not limited by what has been described hereinabove and that numerous modifications, all of which fall within the scope of the present invention, exist. Rather the scope of the invention is defined by the claims, which follow:

Claims

1. A method for printing of a three-dimensional model, said method comprising the steps of: dispensing a pre-determined quantity of interface material from at least one printing head to form at least one interface layer; leveling the dispensed interface material to a pre-determined height; curing said leveled interface material; and repeating the steps of dispensing, leveling and curing thereby producing a plurality of at least one interface layer to a configured pattern layer for forming the three-dimensional model.
2. The method according to claim 1 , wherein said interface material comprises first and second interface material dispensed from first and second printing heads, respectively.
3. The method according to claim 2, further comprising the steps of: curing said first interface material for a first period of time and at a first radiation wavelength; and curing said second interface material for a second period of time and at a second radiation wavelength.
4. The method according to claim 1 , wherein said step of leveling comprises the step of: removing surplus material from each layer of dispensed interface material utilizing a roller.
5. The method according to claim 4, wherein said step of leveling further comprises the step of: cleaning the surplus material off said roller.
6. The method according to claim 5, wherein said step of leveling further comprises the step of: curing the surplus material.
7. A system for three-dimensional printing of a three-dimensional model, comprising: at least one printing head for dispensing a pre-determined quantity of interface material to form at least one interface layer; leveling apparatus for removing surplus material from said at least one interface layer prior to curing; curing apparatus for curing the leveled interface layer ; and a controller connected to said leveling apparatus for controlling the height of each of said at least one interface layer.
8. The system according to claim 7 wherein said at least one printing head comprises first and second printing heads for dispensing first and second interface materials respectively from first and second dispenser connected thereto respectively.
9. The system according to claim 8 wherein said curing apparatus comprises: a first curing apparatus for curing said first interface material for a first period of time and at a first radiation wavelength; and a second curing apparatus for curing said second interface material for a second period of time and at a second radiation wavelength.
10. The system according to claim 7, wherein said interface layer is a photopolymer material curable by the application of ultra-violet or infra-red radiation.
11. The system according to claim 7, wherein said leveling apparatus comprises: a roller rotatable about a longitudinal axis, the roller being operative to make contact with said at least one interface layer; and a sensing device embedded within the roller operative to detect the contact of the roller with the interface layers.
12. The system according to claim 7, and further comprising: cleaning apparatus connected to said controller for cleaning said leveling apparatus; and waste disposal apparatus for disposing of the waste interface material.
13. The system according to claim 12, wherein said waste disposal apparatus comprises curing apparatus using ultra-violet or infra-red radiation.
14. The system according to claim 11 , wherein the outer circumferential surface of said roller comprises grinding material.
15. Apparatus for controlling the finished height of interface layers deposited during the printing of a three-dimensional model, the apparatus comprising: a roller rotatable about a longitudinal axis, the roller being operative to make contact with the deposited interface layers; a sensing device embedded within the roller operative to detect the contact of the roller with the interface layers; and a processor for processing the output from said sensing device.
16. The system according to claim 15, wherein the output from said sensing device is indicative of the height and width of interface material protruding above a pre-determined level.
PCT/IL2001/000043 2000-01-18 2001-01-17 System and method for three dimensional model printing WO2001053105A2 (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6903736B1 (en) 2002-06-25 2005-06-07 Tim Stefan Visual display device and method of manufacture
EP1674243A3 (en) * 2004-12-27 2006-08-23 Objet Geometries Ltd. Apparatus and method for three dimensional model printing
US7209797B2 (en) 2002-01-03 2007-04-24 Objet Geometries Ltd. System and method for accurate printing of three dimensional models utilizing adjustment parameters
US7604768B2 (en) 2002-12-03 2009-10-20 Objet Geometries Ltd. Method for printing of three-dimensional objects
US7725209B2 (en) 2002-11-12 2010-05-25 Objet Geometries Ltd Three-dimensional object printing
EP2266782A1 (en) 2009-06-22 2010-12-29 Karl Hehl Device for manufacturing a 3D object
US8292610B2 (en) 2010-12-21 2012-10-23 Arburg Gmbh + Co. Kg Device for manufacturing a three-dimensional object
EP1847378A3 (en) * 2003-05-01 2015-07-29 Stratasys Ltd. Apparatus for producing an object by sequential deposition of layers of construction material
EP3002108A1 (en) 2014-10-03 2016-04-06 Tyco Electronics Corporation Apparatus for three-dimensional printing
EP3002123A1 (en) 2014-10-03 2016-04-06 Tyco Electronics Corporation Apparatus and method for rotary three-dimensional printing
WO2016083181A1 (en) * 2014-11-27 2016-06-02 Philips Lighting Holding B.V. Printing head, printing apparatus, printing method and printed article
US9576079B2 (en) 2003-05-01 2017-02-21 Stratasys Ltd. Rapid prototyping apparatus
WO2018197376A1 (en) * 2017-04-25 2018-11-01 Philips Lighting Holding B.V. Imprinted 3d printed structure, printing method, 3d item and lighting system therewith

Families Citing this family (142)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7270528B2 (en) * 2002-05-07 2007-09-18 3D Systems, Inc. Flash curing in selective deposition modeling
US7589868B2 (en) * 2002-12-11 2009-09-15 Agfa Graphics Nv Method and apparatus for creating 3D-prints and a 3-D printing system
AU2003900180A0 (en) * 2003-01-16 2003-01-30 Silverbrook Research Pty Ltd Method and apparatus (dam001)
US20050014005A1 (en) * 2003-07-18 2005-01-20 Laura Kramer Ink-jettable reactive polymer systems for free-form fabrication of solid three-dimensional objects
US7939003B2 (en) 2004-08-11 2011-05-10 Cornell Research Foundation, Inc. Modular fabrication systems and methods
US8784723B2 (en) * 2007-04-01 2014-07-22 Stratasys Ltd. Method and system for three-dimensional fabrication
EP2664444B1 (en) 2007-07-25 2018-03-28 Stratasys Ltd. Solid freeform fabrication using a plurality of modeling materials
US7919152B2 (en) * 2008-01-07 2011-04-05 Objet Geometries Ltd. Method and apparatus for curing waste containing photopolymeric components
US8199952B2 (en) * 2008-04-01 2012-06-12 Siemens Hearing Instruments, Inc. Method for adaptive construction of a small CIC hearing instrument
EP2274153B1 (en) 2008-04-10 2012-07-04 Objet Ltd. System and method for three dimensional model printing
US8876513B2 (en) * 2008-04-25 2014-11-04 3D Systems, Inc. Selective deposition modeling using CW UV LED curing
US8609204B2 (en) * 2008-06-05 2013-12-17 Stratasys Ltd. Apparatus and method for solid freeform fabrication
US7875232B2 (en) * 2008-07-31 2011-01-25 Siemens Hearing Instruments, Inc. Simultaneous negative cast and shell fabrication for custom hearing aids
US20100140850A1 (en) * 2008-12-04 2010-06-10 Objet Geometries Ltd. Compositions for 3D printing
US20100140852A1 (en) 2008-12-04 2010-06-10 Objet Geometries Ltd. Preparation of building material for solid freeform fabrication
US8147910B2 (en) * 2009-02-24 2012-04-03 Objet Ltd. Method and apparatus for three-dimensional printing
US20120224734A1 (en) 2009-11-08 2012-09-06 Objet Ltd. Hearing aid and method of fabricating the same
CN103025506B (en) 2010-04-25 2016-11-09 斯特塔西有限公司 Carry the entity Non-mould shaping of outer shell object
US9688021B2 (en) 2010-11-28 2017-06-27 Stratasys Ltd. System and method for additive manufacturing of an object
CN103384591A (en) 2010-11-28 2013-11-06 斯特拉塔西斯有限公司 System and method for additive manufacturing of an object
CN103429075B (en) 2010-12-21 2016-08-10 斯特塔西有限公司 The method and system of the Reuse of materials in adding type manufacture system
CN103747943B (en) 2011-04-17 2017-05-24 斯特拉塔西斯有限公司 System and method for additive manufacturing of an object
US8916085B2 (en) 2011-06-02 2014-12-23 A. Raymond Et Cie Process of making a component with a passageway
WO2012166552A1 (en) 2011-06-02 2012-12-06 A. Raymond Et Cie Fasteners manufactured by three-dimensional printing
US8883064B2 (en) 2011-06-02 2014-11-11 A. Raymond & Cie Method of making printed fastener
CN104254446B (en) 2012-03-04 2016-07-06 斯特拉特西斯有限公司 System and method for deposit liquid
US8888480B2 (en) 2012-09-05 2014-11-18 Aprecia Pharmaceuticals Company Three-dimensional printing system and equipment assembly
ES2873825T3 (en) 2012-09-05 2021-11-04 Aprecia Pharmaceuticals LLC Three-dimensional printing system and equipment set
EP2931456A4 (en) 2012-12-14 2016-05-25 Western Michigan University Res Foundation Patternless sand mold and core formation for rapid casting
JP6170234B2 (en) 2013-03-15 2017-07-26 アプレシア・ファーマスーティカルズ・カンパニー A rapidly dispersing dosage form containing levetiracetam
EP3010722B1 (en) * 2013-06-20 2019-06-05 Hewlett-Packard Development Company, L.P. Pattern-forming three-dimensional printing system and method thereof
US20170173865A1 (en) 2014-02-10 2017-06-22 Stratasys Ltd. Composition and method for additive manufacturing of an object
EP3123843B1 (en) 2014-03-25 2021-06-09 Stratasys Ltd. Method for fabricating cross-layer pattern
JP2015182434A (en) * 2014-03-26 2015-10-22 セイコーエプソン株式会社 Apparatus for manufacturing three-dimensional molded article, method for manufacturing three-dimensional molded article, and three-dimensional molded article
CN106232330B (en) 2014-03-31 2018-10-12 惠普发展公司，有限责任合伙企业 Generate three-dimension object
US11285665B2 (en) 2014-03-31 2022-03-29 Hewlett-Packard Development Company, L.P. Generating three-dimensional objects
DE112015002064T5 (en) * 2014-04-30 2017-01-05 Cummins, Inc. Creation of injection molds using additive manufacturing
CN104057612B (en) * 2014-06-17 2017-08-04 东莞远铸智能科技有限公司 3D printer self-level(l)ing device and 3D printer and leveling method
CN112549529B (en) 2014-07-13 2022-11-29 斯特拉塔西斯公司 System for three-dimensional printing and method of manufacturing three-dimensional object
US10166725B2 (en) 2014-09-08 2019-01-01 Holo, Inc. Three dimensional printing adhesion reduction using photoinhibition
US20160098824A1 (en) * 2014-10-03 2016-04-07 Tyco Electronics Corporation Three dimensional printing inspection apparatus and method
WO2016063282A1 (en) 2014-10-21 2016-04-28 Stratasys Ltd. Three-dimensional inkjet printing using ring-opening metathesis polymerization
KR102003623B1 (en) 2015-01-30 2019-07-25 휴렛-팩커드 디벨롭먼트 컴퍼니, 엘.피. Three-dimensional object manufacturing technique
JP2018516181A (en) 2015-03-25 2018-06-21 ストラタシス リミテッド Method and system for in situ sintering of conductive inks
CN107864639B (en) 2015-06-07 2019-05-10 斯特塔西有限公司 Method and apparatus for printing three-dimensional (3D) object
CN107848198B (en) 2015-07-13 2020-08-18 斯特拉塔西斯公司 Method for operating a plurality of printing nozzles in additive manufacturing and device for cleaning a plurality of printing nozzles
WO2017009832A1 (en) 2015-07-13 2017-01-19 Stratasys Ltd. Leveling apparatus for a 3d printer
EP3322576A1 (en) 2015-07-13 2018-05-23 Stratasys Ltd. Method and system for 3d printing
CN107031062B (en) 2015-07-14 2019-03-05 三纬国际立体列印科技股份有限公司 The sensing device of 3 D-printing object
USD812654S1 (en) 2015-08-02 2018-03-13 Stratasys Ltd. 3D printing block base
USD812653S1 (en) 2015-08-02 2018-03-13 Stratasys Ltd. 3D printing block assembly
US11117310B2 (en) 2015-08-02 2021-09-14 Stratasys Ltd. System for 3D printing
US20180194070A1 (en) 2015-08-10 2018-07-12 Stratasys Ltd. 3d printing using preformed reuseable support structure
WO2017029658A1 (en) 2015-08-14 2017-02-23 Stratasys Ltd. Cleaning composition
KR102570502B1 (en) 2015-08-21 2023-08-25 아프레시아 파마슈티칼즈 엘엘씨 3D printing system and equipment assembly
KR102297516B1 (en) 2015-09-02 2021-09-03 삼성전자주식회사 An object forming apparatus and a controlling method thereof
PL3374163T3 (en) * 2015-11-13 2023-04-24 Paxis Llc Additive manufacturing apparatus, system, and method
US11141919B2 (en) 2015-12-09 2021-10-12 Holo, Inc. Multi-material stereolithographic three dimensional printing
CN108698297A (en) 2015-12-16 2018-10-23 德仕托金属有限公司 Method and system for increasing material manufacturing
WO2017134676A1 (en) 2016-02-05 2017-08-10 Stratasys Ltd. Digitally-controlled three-dimensional printing using ring- opening metathesis polymerization
CN109312069B (en) 2016-02-05 2022-03-22 斯特拉塔西斯公司 Three-dimensional inkjet printing using polyamide molding material
EP3411218A1 (en) 2016-02-07 2018-12-12 Stratasys Ltd. Three-dimensional printing combining ring-opening metathesis polymerization and free radical polymerization
WO2017152142A1 (en) * 2016-03-03 2017-09-08 Desktop Metal, Inc. Additive manufacturing with metallic build materials
EP3448661B1 (en) 2016-04-26 2024-03-27 Stratasys Ltd. Three-dimensional inkjet printing using ring-opening metathesis polymerization
US9981422B2 (en) * 2016-05-13 2018-05-29 Xerox Corporation Cam based leveling assembly for three-dimensional object printing
ES2961578T3 (en) 2016-05-29 2024-03-12 Stratasys Ltd Additive manufacturing of rubber-like materials
US10765658B2 (en) 2016-06-22 2020-09-08 Mastix LLC Oral compositions delivering therapeutically effective amounts of cannabinoids
KR20190058527A (en) 2016-09-22 2019-05-29 스트라타시스 엘티디. Method and system for making arbitrary shape
JP6802368B2 (en) 2016-09-22 2020-12-16 ストラタシス リミテッド Formulations, methods, and systems for solid free-form fabrication
WO2018122655A1 (en) 2016-12-29 2018-07-05 Stratasys Ltd. Pressure control system for print head
US10935891B2 (en) 2017-03-13 2021-03-02 Holo, Inc. Multi wavelength stereolithography hardware configurations
GB2564956B (en) 2017-05-15 2020-04-29 Holo Inc Viscous film three-dimensional printing systems and methods
WO2018218060A2 (en) 2017-05-25 2018-11-29 Tdbt Ip Inc. Aseptic printer system including dual-arm mechanism
IL278176B (en) 2017-05-29 2022-09-01 Stratasys Ltd Method and system for additive manufacturing of peelable sacrificial structure
US10245785B2 (en) 2017-06-16 2019-04-02 Holo, Inc. Methods for stereolithography three-dimensional printing
US20200171739A1 (en) 2017-07-28 2020-06-04 Stratasys Ltd. Additive manufacturing processes employing formulations that provide a liquid or liquid-like material
EP3658352B1 (en) 2017-07-28 2023-09-27 Stratasys Ltd. Additive manufacturing processes employing a material featuring properties of a soft bodily tissue
DK3658990T3 (en) 2017-07-28 2024-01-29 Stratasys Ltd FORMULATIONS USABLE IN ADDITIVE MANUFACTURING OF A THREE-DIMENSIONAL OBJECT FROM A SOFT MATERIAL
JP7329498B2 (en) 2017-07-28 2023-08-18 ストラタシス リミテッド Methods and systems for fabricating objects with vascular properties
CN111148622A (en) 2017-07-28 2020-05-12 斯特拉塔西斯公司 Method and system for manufacturing objects with hard tissue properties
EP3676096A1 (en) 2017-08-29 2020-07-08 Stratasys Ltd. Method and system for rendering data for addressable dispensing
US11351724B2 (en) 2017-10-03 2022-06-07 General Electric Company Selective sintering additive manufacturing method
US11420384B2 (en) 2017-10-03 2022-08-23 General Electric Company Selective curing additive manufacturing method
US11254052B2 (en) 2017-11-02 2022-02-22 General Electric Company Vatless additive manufacturing apparatus and method
US11590691B2 (en) 2017-11-02 2023-02-28 General Electric Company Plate-based additive manufacturing apparatus and method
EP3732049A1 (en) 2017-12-27 2020-11-04 Stratasys Ltd. Print head and method of calibrating the same
JP7221969B2 (en) 2017-12-28 2023-02-14 ストラタシス リミテッド Additive Manufacturing Using Solvent-Free Polyimide-Containing Formulations
EP3732023A1 (en) 2017-12-28 2020-11-04 Stratasys Ltd. Additive manufacturing employing polyimide-containing formulations
CN111670104B (en) 2017-12-28 2023-05-12 斯特拉塔西斯公司 Method and system for additive manufacturing of strippable sacrificial structures
EP3732019A1 (en) 2017-12-31 2020-11-04 Stratasys Ltd. 3d printing of catalytic formulation for selective metal deposition
US20200338834A1 (en) 2017-12-31 2020-10-29 Stratasys Ltd. Support material formulations usable in additive manufacturing of three-dimensional objects at low temperatures
US20200399411A1 (en) 2017-12-31 2020-12-24 Stratasys Ltd. Modeling material formulations usable in additive manufacturing of three-dimensional objects at low temperatures
US10821669B2 (en) 2018-01-26 2020-11-03 General Electric Company Method for producing a component layer-by-layer
US10821668B2 (en) 2018-01-26 2020-11-03 General Electric Company Method for producing a component layer-by- layer
JP6991078B2 (en) * 2018-02-16 2022-01-12 株式会社ミマキエンジニアリング Three-dimensional modeling method
WO2020003301A1 (en) 2018-06-28 2020-01-02 Stratasys Ltd. Method and system for reducing curling in additive manufacturing
WO2020065653A1 (en) 2018-09-27 2020-04-02 Stratasys Ltd. Method and system for additive manufacturing with a sacrificial structure for easy removal
EP3856488B1 (en) 2018-09-27 2023-08-16 Stratasys Ltd. Method and system for additive manufacturing using closed-loop temperature control
EP3856499B1 (en) 2018-09-28 2024-04-17 Stratasys Ltd. Method and system for diffusing color error into additive manufactured objects
US11376799B2 (en) 2018-09-28 2022-07-05 Stratasys Ltd. Method for additive manufacturing with partial curing
US11235511B2 (en) 2018-09-28 2022-02-01 Stratasys Ltd. Three-dimensional inkjet printing of a thermally stable object
CN113474147A (en) 2018-12-26 2021-10-01 霍洛公司 Sensor for three-dimensional printing systems and methods
CN113508024B (en) 2018-12-26 2023-07-28 斯特塔西有限公司 Method and system for improving the life of printheads used in additive manufacturing
CN113423788B (en) 2018-12-27 2024-01-12 斯特拉塔西斯公司 Laminate manufacturing using reinforced materials
US11787181B2 (en) 2018-12-30 2023-10-17 Stratasys Ltd. Printing head for non-cartesian inkjet printing
WO2020141515A1 (en) 2018-12-31 2020-07-09 Stratasys Ltd. Method and system for controlling a cooling system in three-dimensional printing
CN113329693A (en) 2018-12-31 2021-08-31 斯特拉塔西斯公司 Laminated manufacture of radiological prostheses
EP4324651A2 (en) 2018-12-31 2024-02-21 Stratasys Ltd. Method and system for three-dimensional printing
EP3906147B1 (en) 2018-12-31 2023-09-27 Stratasys Ltd. Method and system for improving color uniformity in inkjet printing
EP3906163A1 (en) 2018-12-31 2021-11-10 Stratasys Ltd. Additive manufacturing using materials that form a weak gel
US11794412B2 (en) 2019-02-20 2023-10-24 General Electric Company Method and apparatus for layer thickness control in additive manufacturing
US11498283B2 (en) 2019-02-20 2022-11-15 General Electric Company Method and apparatus for build thickness control in additive manufacturing
US11179891B2 (en) 2019-03-15 2021-11-23 General Electric Company Method and apparatus for additive manufacturing with shared components
EP3946894B1 (en) 2019-03-31 2023-09-06 Stratasys Ltd. Method and system for leveling a layer in freeform fabrication
US20220204761A1 (en) 2019-04-01 2022-06-30 Stratasys Ltd. Additive manufacturing of an object made of a polyurea material
USD949962S1 (en) 2019-07-04 2022-04-26 Stratasys Ltd. Cartridge for 3D printing
JP2022538387A (en) 2019-07-04 2022-09-02 ストラタシス リミテッド Method and system for feedstock monitoring in additive manufacturing
EP3999555A1 (en) 2019-07-19 2022-05-25 Stratasys Ltd. Additive manufacturing of three-dimensional objects containing a transparent material
CN114274508B (en) * 2019-08-22 2023-06-06 浙江大学 Biological 3D printing system
US20230029083A1 (en) 2019-12-31 2023-01-26 Stratasys Ltd. Method and system for reducing waviness in three-dimensional printing
WO2021220274A1 (en) 2020-04-27 2021-11-04 Stratasys Ltd. Leveling system for three-dimensional printing
US20230088152A1 (en) 2020-04-27 2023-03-23 Stratasys Ltd. Service station for a three-dimensional printing system
WO2021220275A1 (en) 2020-04-27 2021-11-04 Stratasys Ltd. System for improving safety in three-dimensional printing
US20230286217A1 (en) 2020-07-27 2023-09-14 Stratasys Ltd. Method and system for three-dimensional printing on fabric
JP2023547400A (en) 2020-10-21 2023-11-10 ストラタシス リミテッド Additive manufacturing of 3D objects including transparent materials
IL302320A (en) 2020-10-21 2023-06-01 Stratasys Ltd Method and system for treating an additive manufactured object
JP2024515471A (en) 2021-03-25 2024-04-10 ストラタシス リミテッド Method and system for measuring jetting characteristics - Patents.com
CN117794965A (en) 2021-06-14 2024-03-29 斯特拉塔西斯公司 Formulation for additive manufacturing of elastomeric materials
EP4355553A1 (en) 2021-06-15 2024-04-24 Stratasys Ltd. Method and system for extended three-dimensional printing
US11951679B2 (en) 2021-06-16 2024-04-09 General Electric Company Additive manufacturing system
US11731367B2 (en) 2021-06-23 2023-08-22 General Electric Company Drive system for additive manufacturing
US11958250B2 (en) 2021-06-24 2024-04-16 General Electric Company Reclamation system for additive manufacturing
US11958249B2 (en) 2021-06-24 2024-04-16 General Electric Company Reclamation system for additive manufacturing
WO2023275878A1 (en) 2021-06-30 2023-01-05 Stratasys Ltd. Disposal of water soluble waste in additive manufacturing
IL309787A (en) 2021-06-30 2024-02-01 Stratasys Ltd Water-soluble support material formulation usable in additive manufacturing
US11826950B2 (en) 2021-07-09 2023-11-28 General Electric Company Resin management system for additive manufacturing
US11813799B2 (en) 2021-09-01 2023-11-14 General Electric Company Control systems and methods for additive manufacturing
WO2023095148A1 (en) 2021-11-29 2023-06-01 Stratasys Ltd. Method and system for encoding data for additive manufacturing
WO2023126928A1 (en) 2021-12-28 2023-07-06 Stratasys Ltd. Method and system for fabricating an object having internal pillars
WO2023126942A1 (en) 2021-12-30 2023-07-06 Stratasys Ltd. Method and system for delivering building material to a printing head
WO2023126943A2 (en) 2021-12-31 2023-07-06 Stratasys Ltd. Additive manufacturing of dental prostheses
WO2023209711A2 (en) 2022-04-24 2023-11-02 Stratasys Ltd. Method and system for three-dimensional printing on fabric

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5053090A (en) * 1989-09-05 1991-10-01 Board Of Regents, The University Of Texas System Selective laser sintering with assisted powder handling
US5252264A (en) * 1991-11-08 1993-10-12 Dtm Corporation Apparatus and method for producing parts with multi-directional powder delivery
WO1998041385A1 (en) * 1997-03-18 1998-09-24 E.I. Du Pont De Nemours And Company Laser sinterable thermoplastic powder

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4575330A (en) 1984-08-08 1986-03-11 Uvp, Inc. Apparatus for production of three-dimensional objects by stereolithography
US5386500A (en) 1987-06-02 1995-01-31 Cubital Ltd. Three dimensional modeling apparatus
US5287435A (en) * 1987-06-02 1994-02-15 Cubital Ltd. Three dimensional modeling
US5121329A (en) 1989-10-30 1992-06-09 Stratasys, Inc. Apparatus and method for creating three-dimensional objects
US5136515A (en) 1989-11-07 1992-08-04 Richard Helinski Method and means for constructing three-dimensional articles by particle deposition
US5387380A (en) 1989-12-08 1995-02-07 Massachusetts Institute Of Technology Three-dimensional printing techniques
US5204055A (en) 1989-12-08 1993-04-20 Massachusetts Institute Of Technology Three-dimensional printing techniques
US5740051A (en) 1991-01-25 1998-04-14 Sanders Prototypes, Inc. 3-D model making
US5594652A (en) 1991-01-31 1997-01-14 Texas Instruments Incorporated Method and apparatus for the computer-controlled manufacture of three-dimensional objects from computer data
US5879489A (en) 1993-11-24 1999-03-09 Burns; Marshall Method and apparatus for automatic fabrication of three-dimensional objects
US5717599A (en) 1994-10-19 1998-02-10 Bpm Technology, Inc. Apparatus and method for dispensing build material to make a three-dimensional article
DE69621001T2 (en) * 1995-02-01 2003-04-03 3D Systems Inc FAST SMOOTHING PROCESS FOR THREE-DIMENSIONAL OBJECTS PRODUCED IN LAYERS
US5943235A (en) 1995-09-27 1999-08-24 3D Systems, Inc. Rapid prototyping system and method with support region data processing
DE69636237T2 (en) 1995-09-27 2007-03-29 3D Systems, Inc., Valencia Modeling of three-dimensional objects through selective material deposition
US6270335B2 (en) 1995-09-27 2001-08-07 3D Systems, Inc. Selective deposition modeling method and apparatus for forming three-dimensional objects and supports
US6136252A (en) 1995-09-27 2000-10-24 3D Systems, Inc. Apparatus for electro-chemical deposition with thermal anneal chamber
US5784279A (en) 1995-09-29 1998-07-21 Bpm Technology, Inc. Apparatus for making three-dimensional articles including moving build material reservoir and associated method
IL117278A (en) 1996-02-27 2000-02-17 Idanit Tech Ltd Method for operating an ink jet printer
US6030199A (en) 1998-02-09 2000-02-29 Arizona Board Of Regents, Acting For And On Behalf Of Arizona State University Apparatus for freeform fabrication of a three-dimensional object
US6490496B1 (en) 1999-02-25 2002-12-03 3D Systems, Inc. Method, apparatus, and article of manufacture for a control system in a selective deposition modeling system
US6259962B1 (en) * 1999-03-01 2001-07-10 Objet Geometries Ltd. Apparatus and method for three dimensional model printing
US6401002B1 (en) * 1999-04-29 2002-06-04 Nanotek Instruments, Inc. Layer manufacturing apparatus and process
US6165406A (en) 1999-05-27 2000-12-26 Nanotek Instruments, Inc. 3-D color model making apparatus and process
US6658314B1 (en) 1999-10-06 2003-12-02 Objet Geometries Ltd. System and method for three dimensional model printing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5053090A (en) * 1989-09-05 1991-10-01 Board Of Regents, The University Of Texas System Selective laser sintering with assisted powder handling
US5252264A (en) * 1991-11-08 1993-10-12 Dtm Corporation Apparatus and method for producing parts with multi-directional powder delivery
WO1998041385A1 (en) * 1997-03-18 1998-09-24 E.I. Du Pont De Nemours And Company Laser sinterable thermoplastic powder

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US7369915B2 (en) 2002-01-03 2008-05-06 Objet Geometries Ltd. Device, system and method for accurate printing of three dimensional objects
US6903736B1 (en) 2002-06-25 2005-06-07 Tim Stefan Visual display device and method of manufacture
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US7996101B2 (en) 2002-11-12 2011-08-09 Objet Geometries Ltd. Cartridge apparatus for three-dimensional object printing
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US9576079B2 (en) 2003-05-01 2017-02-21 Stratasys Ltd. Rapid prototyping apparatus
US9724879B2 (en) 2003-05-01 2017-08-08 Stratasys Ltd. Rapid prototyping apparatus
US11104074B2 (en) 2003-05-01 2021-08-31 Stratasys Ltd. Rapid prototyping apparatus
US9962882B2 (en) 2003-05-01 2018-05-08 Stratasys Ltd. Rapid prototyping apparatus
US11065818B2 (en) 2003-05-01 2021-07-20 Stratasys Ltd. Rapid prototyping apparatus
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