Use of a support liquid to manufacture three-dimensional objects
First Claim
1. Apparatus for producing from a reactive liquid medium capable of being solidified a three dimensional object constructed from a plurality of successive layers of the solidified reactive liquid medium when subjected to appropriate synergistic stimulation, said system comprising:
- a reservoir containing a reactive liquid medium capable of being solidified and an underlying non-reactive liquid medium substantially immiscible with the reactive liquid medium for supporting the reactive liquid medium;
platform means for supporting the object being constructed;
control means for providing coordinate information to enable definition of a three dimensional object of required configuration;
a source of synergistic stimulation for solidifying at least part of a two dimensional layer at the surface of the reactive liquid medium;
imaging means responsive to said control means for selectively controlling the size and shape of that part of the two dimensional layer of the reactive liquid medium to be solidified; and
replenishment means operable for providing a further two dimensional layer of the reactive liquid medium overlying the two dimensional solidified layer substantially at the surface of the reactive liquid medium;
wherein said imaging means includes;
optical means intermediate said source of synergistic stimulation and the surface of the reactive liquid medium; and
including;
means for maintaining the surface of the reactive liquid medium at a focal plane which is a substantially constant distance from said imaging optical means; and
wherein said maintaining means includes;
means for sensing changes from the desired height of the surface of the reactive liquid medium relative to said imaging optical means; and
means responsive to said sensing means for adjusting the height of the reactive liquid medium in said reservoir when the height of the surface of the reactive liquid medium falls below the desired height or rises above the desired height.
5 Assignments
0 Petitions
Accused Products
Abstract
A system is provided for producing a three dimensional object from a reactive liquid medium capable of being solidified. The object is constructed from many successive layers of the solidified reactive liquid medium when subjected to appropriate synergistic stimulation. A reservoir contains both the reactive liquid medium and an underlying supporting, substantially immiscible, non-reactive liquid medium. To begin forming the object, a platform within the reservoir is initially positioned at a depth equal to the thickness of a first layer to be solidified, and continues to support the object being constructed. The synergistic source radiates toward the reactive liquid medium and imaging apparatus defining a three dimensional object of required configuration selectively controls the size and shape of that part of a new two dimensional layer to be solidified. At least part of the new layer is solidified, after which a further layer is applied. This sequence is repeated until all of the solidified layers define the three dimensional object being constructed. In another embodiment, a first part of the new two dimensional layer of the reactive liquid medium is solidified, then all unreacted reactive liquid medium is removed from the reservoir and replaced with a new layer of the reactive liquid medium having a substantially uniform thickness and generally coplanar with and equivalent to the thickness of the first part solidified earlier. Then the second part of the new two dimensional layer of the reactive liquid medium corresponding to the replacement liquid medium is solidified.
156 Citations
53 Claims
-
1. Apparatus for producing from a reactive liquid medium capable of being solidified a three dimensional object constructed from a plurality of successive layers of the solidified reactive liquid medium when subjected to appropriate synergistic stimulation, said system comprising:
-
a reservoir containing a reactive liquid medium capable of being solidified and an underlying non-reactive liquid medium substantially immiscible with the reactive liquid medium for supporting the reactive liquid medium; platform means for supporting the object being constructed; control means for providing coordinate information to enable definition of a three dimensional object of required configuration; a source of synergistic stimulation for solidifying at least part of a two dimensional layer at the surface of the reactive liquid medium; imaging means responsive to said control means for selectively controlling the size and shape of that part of the two dimensional layer of the reactive liquid medium to be solidified; and replenishment means operable for providing a further two dimensional layer of the reactive liquid medium overlying the two dimensional solidified layer substantially at the surface of the reactive liquid medium; wherein said imaging means includes; optical means intermediate said source of synergistic stimulation and the surface of the reactive liquid medium; and
including;means for maintaining the surface of the reactive liquid medium at a focal plane which is a substantially constant distance from said imaging optical means; and wherein said maintaining means includes; means for sensing changes from the desired height of the surface of the reactive liquid medium relative to said imaging optical means; and means responsive to said sensing means for adjusting the height of the reactive liquid medium in said reservoir when the height of the surface of the reactive liquid medium falls below the desired height or rises above the desired height. - View Dependent Claims (2, 4, 6, 8)
-
-
3. Apparatus for producing from a reactive liquid medium capable of being solidified a three dimensional object constructed from a plurality of successive layers of the solidified reactive liquid medium when subjected to appropriate synergistic stimulation, said system comprising:
-
a reservoir containing a reactive liquid medium capable of being solidified and an underlying non-reactive liquid medium substantially immiscible with the reactive liquid medium for supporting the reactive liquid medium; platform means for supporting the object being constructed; control means for providing coordinate information to enable definition of a three dimensional object of required configuration; a source of synergistic stimulation for solidifying at least part of a two dimensional layer at the surface of the reactive liquid medium; imaging means responsive to said control means for selectively controlling the size and shape of that part of the two dimensional layer of the reactive liquid medium to be solidified; and replenishment means operable for providing a further two dimensional layer of the reactive liquid medium overlying the two dimensional solidified layer substantially at the surface of the reactive liquid medium; means for maintaining the surface of the reactive liquid medium at a focal plane which is a substantially constant distance from said imaging optical means; wherein said maintaining means includes; operative means for replenishing the non-reactive liquid medium in said reservoir when the height of the surface of the reactive liquid medium falls below a desired height and for withdrawing excess non-reactive liquid medium from said reservoir when the height of the surface of the reactive liquid medium tends to increase above the desired height. - View Dependent Claims (5, 7)
-
-
9. Apparatus for producing from a reactive liquid medium capable of being solidified a three dimensional object constructed from a plurality of successive layers of the solidified reactive liquid medium when subjected to appropriate synergistic stimulation, said system comprising:
-
a reservoir containing a reactive liquid medium capable of being solidified and an underlying non-reactive liquid medium substantially immiscible with the reactive liquid medium for supporting the reactive liquid medium; platform means for supporting the object being constructed; control means for providing coordinate information to enable definition of a three dimensional object of required configuration; a source of synergistic stimulation for solidifying at least part of a two dimensional layer at the surface of the reactive liquid medium; imaging means responsive to said control means for selectively controlling the size and shape of that part of the two dimensional layer of the reactive liquid medium to be solidified; and replenishment means operable for providing a further two dimensional layer of the reactive liquid medium overlying the two dimensional solidified layer substantially at the surface of the reactive liquid medium; wherein said replenishment means is positioned in a plane intermediate said imaging means and the surface of the reactive liquid medium and movable across the surface of the reactive liquid medium; and wherein said imaging means includes a programmable array operable for projecting an image onto that part of the new two dimensional layer of the reactive liquid medium overlying the object to be solidified; and control means for moving the image across the new two dimensional layer in unison with said replenishment means.
-
-
10. Apparatus for producing from a reactive liquid medium capable of being solidified a three dimensional object constructed from a plurality of successive layers of the solidified reactive liquid medium when subjected to appropriate synergistic stimulation, said system comprising:
-
a reservoir containing a reactive liquid medium capable of being solidified and an underlying non-reactive liquid medium substantially immiscible with the reactive liquid medium for supporting the reactive liquid medium; platform means for supporting the object being constructed; control means for providing coordinate information to enable definition of a three dimensional object of required configuration; a source of synergistic stimulation for solidifying at least part of a two dimensional layer at the surface of the reactive liquid medium; imaging means responsive to said control means for selectively controlling the size and shape of that part of the two dimensional layer of the reactive liquid medium to be solidified; and replenishment means operable for providing a further two dimensional layer of the reactive liquid medium overlying the two dimensional solidified layer; and
including;barrier means for confining the reactive liquid medium within an enclosed area in said reservoir and movable for altering the size of the enclosed area of the reactive liquid medium so as to maintain a thickness thereof equivalent to the thickness of that part of the next succeeding two dimensional layer to be solidified. - View Dependent Claims (11)
-
-
12. Apparatus for producing from a reactive liquid medium capable of being solidified a three dimensional object constructed from a plurality of successive layers of the solidified reactive liquid medium when subjected to appropriate synergistic stimulation, said system comprising:
-
a reservoir containing a reactive liquid medium capable of being solidified and an underlying non-reactive liquid medium substantially immiscible with the reactive liquid medium for supporting the reactive liquid medium; platform means for supporting the object being constructed; control means for providing coordinate information to enable definition of a three dimensional object of required configuration; a source of synergistic stimulation for solidifying at least part of a two dimensional layer at the surface of the reactive liquid medium; imaging means responsive to said control means for selectively controlling the size and shape of that part of the two dimensional layer of the reactive liquid medium to be solidified; replenishment means operable for providing a further two dimensional layer of the reactive liquid medium overlying the two dimensional solidified layer; and means for controlling the molecular alignment within the reactive liquid medium during exposure thereof to synergistic stimulation. - View Dependent Claims (13)
-
-
14. Apparatus for producing from a reactive liquid medium capable of being solidified a three dimensional object constructed from a plurality of successive layers of the solidified reactive liquid medium when subjected to appropriate synergistic stimulation, said apparatus comprising:
-
a reservoir containing a reactive liquid medium capable of being solidified and an underlying non-reactive liquid medium substantially immiscible with the reactive liquid medium for supporting the reactive liquid medium; platform means for supporting the object being constructed within the reservoir, said platform means having an upper surface and being initially positioned at a depth which is substantially equal to a uniform thickness of that part of a first layer to be solidified to begin forming the object and continuing to support the object being constructed on the platform within the reservoir; control means for providing coordinate information to enable definition of a three dimensional object of required configuration; a source of synergistic stimulation for solidifying at least part of a two dimensional layer at the surface of the reactive liquid medium; imaging means response to said control means for selectively controlling the size and shape of that part of the two dimensional layer of the reactive liquid medium to be solidified and operable in two successive operations to solidify a first part of a further two dimensional layer of the reactive liquid medium and, thereafter, to solidify a second part of the further two dimensional layer of the reactive liquid medium; and replenishment means operable for providing the further two dimensional layer of the reactive liquid medium overlying the two dimensional solidified layer substantially at the surface of the reactive liquid medium after solidification of the preceding two dimensional layer of the reactive liquid medium; means for removing from said reservoir all unreacted reactive liquid medium after solidification of the first part of the further two dimensional layer of the reactive liquid medium; said replenishment means being operable for replacing the reactive liquid medium removed after solidification of the first part of the further two dimensional layer of the reactive liquid medium with a new layer of the reactive liquid medium having a substantially uniform thickness and generally coplanar with and equivalent to the thickness of the first solidified part. - View Dependent Claims (15, 16, 18)
-
-
17. Apparatus for producing from a reactive liquid medium capable of being solidified a three dimensional object constructed from a plurality of successive layers of the solidified reactive liquid medium when subjected to appropriate synergistic stimulation, said apparatus comprising:
-
a reservoir containing a reactive liquid medium capable of being solidified and an underlying non-reactive liquid medium substantially immiscible with the reactive liquid medium for supporting the reactive liquid medium; platform means for supporting the object being constructed within the reservoir, said platform means having an upper surface and being initially positioned at a depth which is substantially equal to a uniform thickness of that part of a first layer to be solidified to begin forming the object and continuing to support the object being constructed on the platform within the reservoir; control means for providing coordinate information to enable definition of a three dimensional object of required configuration; a source of synergistic stimulation for solidifying at least part of a two dimensional layer at the surface of the reactive liquid medium; imaging means responsive to said control means for selectively controlling the size and shape of that part of the two dimensional layer of the reactive liquid medium to be solidified; a first source of reactive liquid medium; a second source of reactive liquid medium; mixing means for selectively connecting said first source to said replenishment means and said second source to said replenishment means; replenishment means operable for providing the further two dimensional layer of the reactive liquid medium overlying the two dimensional solidified layer substantially at the surface of the reactive liquid medium after solidification of the preceding two dimensional layer of the reactive liquid medium; and means for removing from said reservoir all unreacted reactive liquid medium after solidification of the first part of the further two dimensional layer of the reactive liquid medium.
-
-
19. A method of producing from a reactive liquid medium capable of being solidified a three dimensional object constructed from a plurality of successive layers of the solidified reactive liquid medium when subjected to appropriate synergistic stimulation, said method comprising the steps of:
-
(a) providing a reservoir containing a reactive liquid medium capable of being solidified and an underlying non-reactive liquid medium substantially immiscible with the reactive liquid medium for supporting the reactive liquid medium; (b) providing a platform within the reservoir having an upper surface and being initially positioned at a depth which is substantially equal to a uniform thickness of that part of a first layer to be solidified to begin forming the object and continuing to support the object being constructed on the platform within the reservoir; (c) directing a source of synergistic stimulation toward the reactive liquid medium to be solidified; (d) operating imaging means for selectively controlling the size and shape of that part of a new two dimensional layer of the reactive liquid medium to be solidified; (e) controlling operation of the imaging means utilizing coordinate information defining a three dimensional object of required configuration; (f) solidifying at least part of the new two dimensional layer of the reactive liquid medium; (g) providing a further layer of the reactive liquid medium having a substantially uniform thickness overlying the new solidified layer on the object and equivalent to the thickness of that part of the next succeeding two dimensional layer to be solidified; and
repeating steps (c) through (g) until all of the layers of the solidified reactive liquid medium define the three dimensional object being constructed;wherein step (g) includes the step of; (h) adjusting the thickness of the further layer of the reactive liquid medium to achieve the further layer of step (g); and wherein the reactive liquid medium is confined within an enclosed area in the reservoir; and
wherein step (h) includes the step of;(i) altering the size of the enclosed area of the further layer of the reactive liquid medium so as to maintain a thickness thereof equivalent to the thickness of that part of the next succeeding two dimensional layer to be solidified. - View Dependent Claims (20, 21, 22)
-
-
23. A method of producing from a reactive liquid medium capable of being solidified a three dimensional object constructed from a plurality of successive layers of the solidified reactive liquid medium when subjected to appropriate synergistic stimulation, said method comprising the steps of:
-
(a) providing a reservoir containing a reactive liquid medium capable of being solidified and an underlying non-reactive liquid medium substantially immiscible with the reactive liquid medium for supporting the reactive liquid medium; (b) providing a platform within the reservoir having an upper surface and being initially positioned at a depth which is substantially equal to a uniform thickness of that part of a first layer to be solidified to begin forming the object and continuing to support the object being constructed on the platform within the reservoir; (c) directing a source of synergistic stimulation toward the reactive liquid medium to be solidified; (d) operating imaging means for selectively controlling the size and shape of that part of a new two dimensional layer of the reactive liquid medium to be solidified; (e) controlling operation of the imaging means utilizing coordinate information defining a three dimensional object of required configuration; (f) solidifying at least part of the new two dimensional layer of the reactive liquid medium; (g) providing a further layer of the reactive liquid medium having a substantially uniform thickness overlying the new solidified layer on the object and equivalent to the thickness of that part of the next succeeding two dimensional layer to be solidified; and
repeating steps (c) through (g) until all of the layers of the solidified reactive liquid medium define the three dimensional object being constructed;wherein step (d) includes the step of; (h) positioning the imaging means intermediate the source of synergistic stimulation and the reactive liquid medium and spaced from the surface of the reactive liquid medium; and further including the step of (i) maintaining the surface of the reactive liquid medium at a focal plane which is a substantially constant distance from the imaging means; and wherein step (i) includes the step of; (j) replenishing the reactive liquid medium in the reservoir when the height of the surface of the reactive liquid medium falls below a desired height and withdrawing excess reactive liquid medium from the reservoir when the height of the surface of the reactive liquid medium tends to increase above the desired height. - View Dependent Claims (24)
-
-
25. A method of producing from a reactive liquid medium capable of being solidified a three dimensional object constructed from a plurality of successive layers of the solidified reactive liquid medium when subjected to appropriate synergistic stimulation, said method comprising the steps of:
-
(a) providing a reservoir containing a reactive liquid medium capable of being solidified and an underlying non-reactive liquid medium substantially immiscible with the reactive liquid medium for supporting the reactive liquid medium; (b) providing a platform within the reservoir having an upper surface and being initially positioned at a depth which is substantially equal to a uniform thickness of that part of a first layer to be solidified to begin forming the object and continuing to support the object being constructed on the platform within the reservoir; (c) directing a source of synergistic stimulation toward the reactive liquid medium to be solidified; (d) operating imaging means for selectively controlling the size and shape of that part of a new two dimensional layer of the reactive liquid medium to be solidified; (e) controlling operation of the imaging means utilizing coordinate information defining a three dimensional object of required configuration; (f) solidifying at least part of the new two dimensional layer of the reactive liquid medium; (g) providing a further layer of the reactive liquid medium having a substantially uniform thickness overlying the new solidified layer on the object and equivalent to the thickness of that part of the next succeeding two dimensional layer to be solidified; and
repeating steps (c) through (g) until all of the layers of the solidified reactive liquid medium define the three dimensional object being constructed;wherein step (d) includes the step of; (h) positioning the imaging means intermediate the source of synergistic stimulation and the reactive liquid medium and spaced from the surface of the reactive liquid medium; and wherein the method further includes the step of; (i) maintaining the surface of the reactive liquid medium at a focal plane which is a substantially constant distance from the imaging means; and wherein step (i) includes the step of; (j) adjusting the volume of the non-reactive liquid medium in the reservoir. - View Dependent Claims (26, 27)
-
-
28. A method of producing from a reactive liquid medium capable of being solidified a three dimensional object constructed from a plurality of successive layers of the solidified reactive liquid medium when subjected to appropriate synergistic stimulation, said method comprising the steps of:
-
(a) providing a reservoir containing a reactive liquid medium capable of being solidified and an underlying non-reactive liquid medium substantially immiscible with the reactive liquid medium for supporting the reactive liquid medium; (b) providing a platform within the reservoir having an upper surface and being initially positioned at a depth which is substantially equal to a uniform thickness of that part of a first layer to be solidified to begin forming the object and continuing to support the object being constructed on the platform within the reservoir; (c) directing a source of synergistic stimulation toward the reactive liquid medium to be solidified; (d) operating imaging means for selectively controlling the size and shape of that part of a new two dimensional layer of the reactive liquid medium to be solidified; (e) controlling operation of the imaging means utilizing coordinate information defining a three dimensional object of required configuration; (f) solidifying at least part of the new two dimensional layer of the reactive liquid medium; (g) providing a further layer of the reactive liquid medium having a substantially uniform thickness overlying the new solidified layer on the object and equivalent to the thickness of that part of the next succeeding two dimensional layer to be solidified; and
repeating steps (c) through (g) until all of the layers of the solidified reactive liquid medium define the three dimensional object being constructed;wherein step (d) includes the step of; (h) positioning the imaging means intermediate the source of synergistic stimulation and the reactive liquid medium and spaced from the surface of the reactive liquid medium; and wherein the method further includes the steps of; (i) maintaining the surface of the reactive liquid medium at a focal plane which is a substantially constant distance from the imaging means; (j) providing displacement mass means within the reservoir operable for movement between first and second spaced positions in at least one of the reactive liquid medium and the non-reactive liquid medium; and (k) moving the displacement mass means in response to changes in the level of the surface of the reactive liquid medium such that the surface of the reactive liquid medium is maintained at a focal plane which is a substantially constant distance from the imaging optical means. - View Dependent Claims (29)
-
-
30. A method of producing from a reactive liquid medium capable of being solidified a three dimensional object constructed from a plurality of successive layers of the solidified reactive liquid medium when subjected to appropriate synergistic stimulation, said method comprising the steps of:
-
(a) providing a reservoir containing a reactive liquid medium capable of being solidified and an underlying non-reactive liquid medium substantially immiscible with the reactive liquid medium for supporting the reactive liquid medium; (b) providing a platform within the reservoir having an upper surface and being initially positioned at a depth which is substantially equal to a uniform thickness of that part of a first layer to be solidified to begin forming the object and continuing to support the object being constructed on the platform within the reservoir; (c) directing a source of synergistic stimulation toward the reactive liquid medium to be solidified; (d) operating imaging means for selectively controlling the size and shape of that part of a new two dimensional layer of the reactive liquid medium to be solidified; (e) controlling operation of the imaging means utilizing coordinate information defining a three dimensional object of required configuration; (f) solidifying at least part of the new two dimensional layer of the reactive liquid medium; (g) providing a further layer of the reactive liquid medium having a substantially uniform thickness overlying the new solidified layer on the object and equivalent to the thickness of that part of the next succeeding two dimensional layer to be solidified; and
repeating steps (c) through (g) until all of the layers of the solidified reactive liquid medium define the three dimensional object being constructed;wherein step (g) includes the steps of; (h) providing an extrusion die having an elongated slot extending across the surface of the reactive liquid medium at a uniform distance; (i) causing flow of the reactive liquid medium from a source thereof through the elongated slot; and (j) translating the extrusion die across the surface of the reactive liquid medium; and wherein the method includes the step of; (k) withdrawing excess reactive liquid medium from the reservoir when the height of the surface of the reactive liquid medium tends to increase above a desired height. - View Dependent Claims (32, 34, 37)
-
-
31. A method of producing from a reactive liquid medium capable of being solidified a three dimensional object constructed from a plurality of successive layers of the solidified reactive liquid medium when subjected to appropriate synergistic stimulation, said method comprising the steps of:
-
(a) providing a reservoir containing a reactive liquid medium capable of being solidified and an underlying non-reactive liquid medium substantially immiscible with the reactive liquid medium for supporting the reactive liquid medium; (b) providing a platform within the reservoir having an upper surface and being initially positioned at a depth which is substantially equal to a uniform thickness of that part of a first layer to be solidified to begin forming the object and continuing to support the object being constructed on the platform within the reservoir; (c) directing a source of synergistic stimulation toward the reactive liquid medium to be solidified; (d) operating imaging means for selectively controlling the size and shape of that part of a new two dimensional layer of the reactive liquid medium to be solidified; (e) controlling operation of the imaging means utilizing coordinate information defining a three dimensional object of required configuration; (f) solidifying at least part of the new two dimensional layer of the reactive liquid medium; (g) providing a further layer of the reactive liquid medium having a substantially uniform thickness overlying the new solidified layer on the object and equivalent to the thickness of that part of the next succeeding two dimensional layer to be solidified; and
repeating steps (c) through (g) until all of the layers of the solidified reactive liquid medium define the three dimensional object being constructed;wherein step (g) includes the steps of; (h) providing an extrusion die having an elongated slot extending across the surface of the reactive liquid medium at a uniform distance; (i) causing flow of the reactive liquid medium from a source thereof through the elongated slot; and (j) translating the extrusion die across the surface of the reactive liquid medium; and wherein the method includes the step of; (k) withdrawing excess reactive liquid medium from the reservoir when the thickness of the reactive liquid medium tends to increase beyond a desired thickness. - View Dependent Claims (33, 36)
-
-
35. A method of producing from a reactive liquid medium capable of being solidified a three dimensional object constructed from a plurality of successive layers of the solidified reactive liquid medium when subjected to appropriate synergistic stimulation, said method comprising the steps of:
-
(a) providing a reservoir containing a reactive liquid medium capable of being solidified and an underlying non-reactive liquid medium substantially immiscible with the reactive liquid medium for supporting the reactive liquid medium; (b) providing a platform within the reservoir having an upper surface and being initially positioned at a depth which is substantially equal to a uniform thickness of that part of a first layer to be solidified to begin forming the object and continuing to support the object being constructed on the platform within the reservoir; (c) directing a source of synergistic stimulation toward the reactive liquid medium to be solidified; (d) operating imaging means for selectively controlling the size and shape of that part of a new two dimensional layer of the reactive liquid medium to be solidified; (e) controlling operation of the imaging means utilizing coordinate information defining a three dimensional object of required configuration; (f) solidifying at least part of the new two dimensional layer of the reactive liquid medium; (g) providing a further layer of the reactive liquid medium having a substantially uniform thickness overlying the new solidified layer on the object and equivalent to the thickness of that part of the next succeeding two dimensional layer to be solidified; and
repeating steps (c) through (g) until all of the layers of the solidified reactive liquid medium define the three dimensional object being constructed;wherein step (g) includes the steps of; (h) providing an extrusion die having an elongated slot extending across the surface of the reactive liquid medium at a uniform distance; (i) causing flow of the reactive liquid medium from a source thereof through the elongated slot; and (j) translating the extrusion die across the surface of the reactive liquid medium; and wherein the method includes the steps of; (k) sensing changes in the height of the surface of the reactive liquid medium from a desired height thereof; (l) providing displacement mass means within the reservoir movable between first and second spaced positions in at least one of the reactive liquid medium and the non-reactive liquid medium; and (m) moving the displacement mass means from the first position to the second position in response to changes in the level of the surface of the reactive liquid medium detected in step (k) such that the surface of the reactive liquid medium is maintained at a focal plane which is a substantially constant distance from the imaging optical means.
-
-
38. A method of producing from a reactive liquid medium capable of being solidified a three dimensional object constructed from a plurality of successive layers of the solidified reactive liquid medium when subjected to appropriate synergistic stimulation, said method comprising the steps of:
-
(a) providing a reservoir containing a reactive liquid medium capable of being solidified and an underlying non-reactive liquid medium substantially immiscible with the reactive liquid medium for supporting the reactive liquid medium; (b) providing a platform within the reservoir having an upper surface and being initially positioned at a depth which is substantially equal to a uniform thickness of that part of a first layer to be solidified to begin forming the object and continuing to support the object being constructed on the platform within the reservoir; (c) directing a source of synergistic stimulation toward the reactive liquid medium to be solidified; (d) operating imaging means for selectively controlling the size and shape of that part of a new two dimensional layer of the reactive liquid medium to be solidified; (e) controlling operation of the imaging means utilizing coordinate information defining a three dimensional object of required configuration; (f) solidifying at least part of the new two dimensional layer of the reactive liquid medium; (g) providing a further layer of the reactive liquid medium having a substantially uniform thickness overlying the new solidified layer on the object and equivalent to the thickness of that part of the next succeeding two dimensional layer to be solidified; and
repeating steps (c) through (g) until all of the layers of the solidified reactive liquid medium define the three dimensional object being constructed;wherein step (g) includes the steps of; (h) providing an extrusion die having an elongated slot extending across the surface of the reactive liquid medium at a uniform distance; (i) causing flow of the reactive liquid medium from a source thereof through the elongated slot; and (j) translating the extrusion die across the surface of the reactive liquid medium; and wherein the method includes the step of; (k) heating at least one of the reactive liquid medium and the non-reactive liquid medium to control the viscosity thereof.
-
-
39. A method of producing from a reactive liquid medium capable of being solidified a three dimensional object constructed from a plurality of successive layers of the solidified reactive liquid medium when subjected to appropriate synergistic stimulation, said method comprising the steps of:
-
(a) providing a reservoir containing a reactive liquid medium capable of being solidified and an underlying non-reactive liquid medium substantially immiscible with the reactive liquid medium for supporting the reactive liquid medium; (b) providing a platform within the reservoir having an upper surface and being initially positioned at a depth which is substantially equal to a uniform thickness of that part of a first layer to be solidified to begin forming the object and continuing to support the object being constructed on the platform within the reservoir; (c) directing a source of synergistic stimulation toward the reactive liquid medium to be solidified; (d) operating imaging means for selectively controlling the size and shape of that part of a new two dimensional layer of the reactive liquid medium to be solidified; (e) controlling operation of the imaging means utilizing coordinate information defining a three dimensional object of required configuration; (f) solidifying at least part of the new two dimensional layer of the reactive liquid medium; (g) providing a further layer of the reactive liquid medium having a substantially uniform thickness overlying the new solidified layer on the object and equivalent to the thickness of that part of the next succeeding two dimensional layer to be solidified; and
repeating steps (c) through (g) until all of the layers of the solidified reactive liquid medium define the three dimensional object being constructed;wherein steps (d), (f) and (g) include the steps of; (h) positioning the dispenser means in a plane intermediate the imaging means and the surface of the reactive liquid medium; and (i) from an imaging means including a programmable array, projecting an image onto that part of the new two dimensional layer of the reactive liquid medium overlying the object to be solidified; and (j) moving the imaging means across the new two dimensional layer in unison with the dispenser means.
-
-
40. A method of producing from a reactive liquid medium capable of being solidified a three dimensional object constructed from a plurality of successive layers of the solidified reactive liquid medium when subjected to appropriate synergistic stimulation, said method comprising the steps of:
-
(a) providing a reservoir containing a reactive liquid medium capable of being solidified and an underlying non-reactive liquid medium substantially immiscible with the reactive liquid medium for supporting the reactive liquid medium; (b) providing a platform within the reservoir having an upper surface and being initially positioned at a depth which is substantially equal to a uniform thickness of that part of a first layer to be solidified to begin forming the object and continuing to support the object being constructed on the platform within the reservoir; (c) directing a source of synergistic stimulation toward the reactive liquid medium to be solidified; (d) operating imaging means for selectively controlling the size and shape of that part of a new two dimensional layer of the reactive liquid medium to be solidified; (e) controlling operation of the imaging means utilizing coordinate information defining a three dimensional object of required configuration; (f) solidifying at least part of the new two dimensional layer of the reactive liquid medium; (g) providing a further layer of the reactive liquid medium having a substantially uniform thickness overlying the new solidified layer on the object and equivalent to the thickness of that part of the next succeeding two dimensional layer to be solidified; and
repeating steps (c) through (g) until all of the layers of the solidified reactive liquid medium define the three dimensional object being constructed;wherein step (g) includes the steps of; (h) removing from the reservoir all unreacted reactive liquid medium after step (f); and (i) adding a new layer of reactive liquid medium overlying the surface of the non-reactive liquid medium. - View Dependent Claims (41, 42)
-
-
43. A method of producing from a reactive liquid medium capable of being solidified a three dimensional object constructed from a plurality of successive layers of the solidified reactive liquid medium when subjected to appropriate synergistic stimulation, said method comprising the steps of:
-
(a) providing a reservoir containing a reactive liquid medium capable of being solidified and an underlying non-reactive liquid medium substantially immiscible with the reactive liquid medium for supporting the reactive liquid medium; (b) providing a platform within the reservoir having an upper surface and being initially positioned at a depth which is substantially equal to a uniform thickness of that part of a first layer to be solidified to begin forming the object and continuing to support the object being constructed on the platform within the reservoir; (c) directing a source of synergistic stimulation toward the reactive liquid medium to be solidified; (d) operating imaging means for selectively controlling the size and shape of that part of a new two dimensional layer of the reactive liquid medium to be solidified; (e) controlling operation of the imaging means utilizing coordinate information defining a three dimensional object of required configuration; (f) solidifying at least part of the new two dimensional layer of the reactive liquid medium; (g) providing a further layer of the reactive liquid medium having a substantially uniform thickness overlying the new solidified layer on the object and equivalent to the thickness of that part of the next succeeding two dimensional layer to be solidified; and
repeating steps (c) through (g) until all of the layers of the solidified reactive liquid medium define the three dimensional object being constructed;wherein step (g) includes the step of; (h) controlling the molecular alignment within the reactive liquid medium during exposure to synergistic stimulation. - View Dependent Claims (44)
-
-
45. A method of producing from a reactive liquid medium capable of being solidified a three dimensional object constructed from a plurality of successive layers of the solidified reactive liquid medium when subjected to appropriate synergistic stimulation, said method comprising the steps of:
-
(a) providing a reservoir containing a reactive liquid medium capable of being solidified and an underlying non-reactive liquid medium substantially immiscible with the reactive liquid medium for supporting the reactive liquid medium; (b) providing a platform within the reservoir having an upper surface and being initially positioned at a depth which is substantially equal to a uniform thickness of that part of a first layer to be solidified to begin forming the object and continuing to support the object being constructed on the platform within the reservoir; (c) directing a source of synergistic stimulation toward the reactive liquid medium to he solidified; (d) operating imaging means for selectively controlling the size and shape of that part of a new two dimensional layer of the reactive liquid medium to be solidified; (e) controlling operation of the imaging means utilizing coordinate information defining a three dimensional object of required configuration; (f) solidifying at least part of the new two dimensional layer of the reactive liquid medium; (g) providing a further layer of the reactive liquid medium having a substantially uniform thickness overlying the new solidified layer on the object and equivalent to the thickness of that part of the next succeeding two dimensional layer to be solidified; and
repeating steps (c) through (g) until all of the layers of the solidified reactive liquid medium define the three dimensional object being constructed;wherein the object being formed has a bottom and at least one upstanding wall defining an interior region; and including the step of; (h) forming the upstanding wall with a displacement hole therethrough adjacent the bottom to enable flow of the non-reactive liquid medium into the interior region.
-
-
46. A method of producing from a reactive liquid medium capable of being solidified a three dimensional object constructed from a plurality of successive layers of the solidified reactive liquid medium when subjected to appropriate synergistic stimulation, said method comprising the steps of:
-
(a) providing a reservoir containing a reactive liquid medium capable of being solidified and an underlying non-reactive liquid medium substantially immiscible with the reactive liquid medium for supporting the reactive liquid medium; (b) providing a platform within the reservoir having an upper surface and being initially positioned at a depth which is substantially equal to a uniform thickness of that part of a first layer to be solidified to begin forming the object and continuing to support the object being constructed on the platform within the reservoir; (c) directing a source of synergistic stimulation toward the reactive liquid medium to be solidified; (d) operating imaging means for selectively controlling the size and shape of that part of a new two dimensional layer of the reactive liquid medium to be solidified; (e) controlling operation of the imaging means utilizing coordinate information defining a three dimensional object of required configuration; (f) solidifying a first part of the new two dimensional layer of the reactive liquid medium; (g) after step (f), removing from the reservoir all unreacted reactive liquid medium; (h) replacing the reactive liquid medium removed in step (g) with a new layer of the reactive liquid medium having a substantially uniform thickness and generally coplanar with and equivalent to the thickness of the first part solidified in step (f); (i) solidifying a second part of the new two dimensional layer of the reactive liquid medium corresponding to the replacement liquid medium of step (h); (j) providing a further layer of the reactive liquid medium having a substantially uniform thickness overlying the new solidified layer on the object and equivalent to the thickness of that part of the next succeeding two dimensional layer to be solidified; and
repeating steps (c) through (j) until all of the layers of the solidified reactive liquid medium define the three dimensional object being constructed. - View Dependent Claims (47, 48, 49, 50)
-
-
51. A method of producing from a reactive liquid medium capable of being solidified a three dimensional object constructed from a plurality of successive layers of the solidified reactive liquid medium when subjected to appropriate synergistic stimulation, said method comprising the steps of:
-
(a) providing a reservoir containing a reactive liquid medium capable of being solidified and an underlying non-reactive liquid medium substantially immiscible with the reactive liquid medium for supporting the reactive liquid medium; (b) providing a platform within the reservoir having an upper surface and being initially positioned at a depth which is substantially equal to a uniform thickness of that part of a first layer to be solidified to begin forming the object and continuing to support the object being constructed on the platform within the reservoir; (c) directing a source of synergistic stimulation toward the reactive liquid medium to be solidified; (d) operating imaging means for selectively controlling the size and shape of that part of a further two dimensional layer of the reactive liquid medium to be soldified; (e) controlling operation of the imaging means utilizing coordinate information defining a three dimensional object of required configuration; (f) solidifying the further two dimensional layer of the reactive liquid medium; (g) after step (f), removing from the reservoir all unreacted reactive liquid medium; (h) replacing the reactive liquid medium removed in step (g) with a new layer of the reactive liquid medium having a substantially uniform thickness and overlying the preceding solidified layer of the reactive liquid medium; (i) solidifying the new two dimensional layer of the reactive liquid medium corresponding to the replacement liquid medium of step (h); and repeating steps (c) through (i) until all of the layers of the solidified reactive liquid medium define the three dimensional object being constructed. - View Dependent Claims (52, 53)
-
Specification