(a) (b) (i) (ii) (iii) (iv) (c) (c) mixing, in a second apparatus, the colored resin concentrate with a second portion of the bulk supply, to produce the pigmented additive manufacturing resin having the predefined color.
B29B 7/08 - Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices shaking, oscillating or vibrating
B29B 7/10 - Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
B29B 7/32 - Mixing; Kneading continuous, with mechanical mixing or kneading devices with non-movable mixing or kneading devices
B29B 7/42 - Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
B29B 7/48 - Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
B29C 64/00 - 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
2.
HOLLOW DENTAL MOLDS CONFIGURED FOR HIGH THROUGHPUT CLEANING
Described herein is a mold in the shape of a dental arch produced by additive manufacturing from a polymerizable resin. The mold includes: an upper portion configured in the shape of a set of teeth; an intermediate portion having a hollow cavity formed therein; a planar base surface portion, the hollow cavity extending through the base surface portion; and a plurality of drain channels extending from the hollow cavity upward through the upper portion, the drain channels configured for draining of residual polymerizable resin from the hollow cavity.
A61C 13/34 - Making or working of models, e.g. preliminary castings, trial dentures; Dowel pins
B29C 33/38 - 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 - Details thereof or accessories therefor characterised by the material or the manufacturing process
The present disclosure describes a method of making a composite product (20) by additive manufacturing. The method includes providing an additive manufacturing apparatus having a build platform, the build platform having a planar face on which the product is formed; securing a fabric (22) sheet to the planar face (11) to provide a planar fabric surface thereon; additively manufacturing an intermediate object on the planar fabric surface in the apparatus (12) by light polymerizing a dual cure resin to produce an intermediate object on the build platform, the intermediate object including the fabric (22) sheet having the three-dimensional object (21) adhered thereto; and concurrently with or following the additively manufacturing step, further curing the intermediate object to produce a composite object including the fabric sheet having the three-dimensional object adhered thereto. Composite object and products are also described herein.
B33Y 70/10 - Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
Three-dimensional (3D) lattice objects with multiple zones of different lattice unit cells may be formed by additive manufacturing. Sets of primary unit cells are provided such that each primary unit cell is configured to smoothly transition to other primary unit cells through a series of intermediate unit cells. A universal unit cell may define the primary and intermediate unit cells.
Provided are methods of making an additively manufactured object having an outer surface coating thereon. Also provided are additively manufactured objects having an outer surface coating thereon.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/188 - Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B05D 1/18 - Processes for applying liquids or other fluent materials performed by dipping
B05D 7/02 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
A method of making a plurality of polymer dental appliances, including the steps of: (a) additively manufacturing a plurality of hollow molds from a polymerizable resin, each mold having an external surface portion configured in the shape of a dental arch and a bottom portion having a hollow cavity therein, and with the additively manufacturing step carried out with the plurality of hollow molds formed on a build platform; (b) centrifugally separating residual resin from both the external surface portion and the bottom portion (including the hollow cavity) of each mold; (c) further curing, concurrently or sequentially, the external surface portion and the bottom portion of each mold with ultraviolet light; then (d) thermoforming a thermoplastic polymer sheet on each hollow mold external surface portion to produce the plurality of polymer dental appliances; and (e) separating the plurality of polymer dental appliances from the plurality of hollow molds.
A61C 7/00 - Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B33Y 80/00 - Products made by additive manufacturing
B29C 33/38 - 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 - Details thereof or accessories therefor characterised by the material or the manufacturing process
Provided according to embodiments of the invention are methods for the rapid production of a composition that includes a reactive blocked prepolymer. Such methods may include continuously mixing a first precursor composition and a second precursor composition, the first precursor composition including a polyisocyanate oligomer and the second precursor composition including an amine (meth)acrylate to produce the composition that includes a reactive blocked prepolymer.
C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
B29C 64/00 - 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
B33Y 70/00 - Materials specially adapted for additive manufacturing
C08G 18/81 - Unsaturated isocyanates or isothiocyanates
G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
8.
SYSTEMS AND METHODS FOR CONSTRUCTING LATTICE OBJECTS FOR ADDITIVE MANUFACTURING
Tdd symmetry); and then (c) filling said tetrahedral mesh with the tetrahedral unit cell to thereby construct a 3D object comprising repeating interconnected unit cells of the selected primary lattice. In some embodiments the method further includes the step of (d) additively manufacturing the 3D object.
e.g.,e.g., stiffness, energy absorption, energy return, resilience, toughness) along a predefined axis therein not achieved by either said first or second surface lattice unit cell when formed from the same material as said hybrid surface lattice unit cell.
B29C 64/00 - 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
B33Y 50/00 - Data acquisition or data processing for additive manufacturing
G06F 111/06 - Multi-objective optimisation, e.g. Pareto optimisation using simulated annealing [SA], ant colony algorithms or genetic algorithms [GA]
G06F 113/10 - Additive manufacturing, e.g. 3D printing
G06F 119/14 - Force analysis or force optimisation, e.g. static or dynamic forces
A method of forming a three-dimensional object (31) includes the steps of: (a) providing an apparatus including a carrier (15), a light transmissive window (12) having a build surface, polymerizable liquid (21) on the build surface, and a growing object (31) on the carrier, the growing object produced by light polymerization of the polymerizable liquid; (b) vertically reciprocating the carrier (15) with respect to the build surface in an upstroke and a downstroke, the downstroke being shorter than the upstroke, to form a build region between the growing object and the build surface, and to fill the build region with the polymerizable liquid, while also: (i) sensing force exerted between the carrier and the build surface through the growing object (31) and the polymerizable liquid (21) during the upstroke; and (ii) modifying the speed, acceleration, or both speed and acceleration of the upstroke in response to the sensed force so that the sensed force approaches a predetermined target force; then (c) irradiating the build region with light through the light transmissive window to form a new portion of the object from the polymerizable liquid on the growing object; and then (d) repeating steps (b) through (c) to form additional portions on the growing object until the three-dimensional object is formed.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/232 - Driving means for motion along the axis orthogonal to the plane of a layer
B33Y 30/00 - 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 - Details thereof or accessories therefor
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
11.
VAPOR SPIN CLEANING OF ADDITIVELY MANUFACTURED PARTS
A method of cleaning residual resin from an additively manufactured object, includes: (a) enclosing an additively manufactured object in an inner chamber of a centrifugal separator, the additively manufactured object including a light polymerized resin with a surface coating of viscous, unpolymerized, residual resin; (b) flooding the chamber with a volatile organic solvent vapor without contacting liquid organic solvent to the object, the vapor present in an amount sufficient to reduce the viscosity of the residual resin; and (c) spinning the additively manufactured object in the chamber to centrifugally separate at least a first portion of the residual resin from the object.
The present disclosure is directed to an applicator apparatus (20) for applying a release film (31) to a planar build surface of an additive manufacturing build platform (30). The applicator apparatus includes a chassis having a top plate (21), at least one build platform alignment member (25) on the top plate configured for positioning the build platform on the top plate with the planar build surface thereof facing upward, a roller carrier (22) connected to the chassis and configured with the top plate to pass over the planar build surface, and a roller (23) connected to the roller carrier and configured to press against a release film positioned on the planar build surface of the build platform. A system for applying and removing a release film to and from a planar build surface of an additive manufacturing build platform is also described herein.
B33Y 30/00 - 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 - Details thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B29C 63/02 - Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
B32B 37/00 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
B32B 37/18 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
The present disclosure is directed to an apparatus (120) for removing a release film (31) or additively manufactured object (201) adhered to a planar build surface of an additive manufacturing build platform (30). The apparatus includes a chassis having a top plate (121), at least one build platform alignment member on the top plate configured for positioning the build platform on the top plate with the planar build surface thereof facing upward, a blade carrier (122) connected to the chassis and configured with the top plate to pass over the planar build surface of the build platform, and a blade (128) connected to the blade carrier (122) and configured, when a build platform is positioned on said top plate, to press against the planar build surface and scrape the release film or additively manufactured object adhered to the planar build surface off that surface. Methods of manufacturing at least one object on a planar build surface of an additive manufacturing build platform are also described herein.
(a)(i)(ii)(iii)(iv)(iv) a photoinitiator; (b) producing a three-dimensional intermediate from said polymerizable liquid by stereolithography (11); (c) optionally cleaning (12) said intermediate; and (d) heating (13) a surface of said three-dimensional intermediate to activate the inhibited ROMP catalyst, polymerize the cyclic olefin monomer and/or prepolymer by frontal ring-opening metathesis polymerization and form said three- dimensional object. Resins, build platforms (20) and apparatus useful for performing the method are also provided.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B33Y 30/00 - 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 - Details thereof or accessories therefor
B33Y 40/20 - Post-treatment, e.g. curing, coating or polishing
B33Y 70/00 - Materials specially adapted for additive manufacturing
C08G 61/08 - Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms prepared by ring-opening of carbocyclic compounds of carbocyclic compounds containing one or more carbon-to-carbon double bonds in the ring
16.
RESINS AND METHODS FOR ADDITIVE MANUFACTURING OF ENERGY ABSORBING THREE-DIMENSIONAL OBJECTS
Provided herein is a method of recycling reactive prepolymers from additively manufactured articles or recovered coating material that comprises a crosslinked polymer formed from a single-cure resin comprising a reactive blocked prepolymer and a crosslinker, by forming and recovering a regenerated reactive prepolymer. Light-polymerizable resins, methods of making recyclable objects from such resins, and methods for sustainable manufacturing are also provided.
A method of making an object by additive manufacturing, the object having a matte finish on a surface thereof, is described herein. The method includes the steps of: (a) producing an intermediate object by light polymerization of a dual cure resin in an additive manufacturing process, the object having excess unpolymerized resin retained on a surface thereof; (b) separating a portion of the excess unpolymerized resin from the object while leaving a thin film of unpolymerized resin on the surface; (c) contacting the thin film to an absorbent sheet to remove additional excess unpolymerized therefrom; and then (d) further curing the intermediate object to produce an object having a matte finish on the surface.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/188 - Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
B29C 71/00 - After-treatment of articles without altering their shape; Apparatus therefor
B29C 71/04 - After-treatment of articles without altering their shape; Apparatus therefor by wave energy or particle radiation
B22F 10/00 - Additive manufacturing of workpieces or articles from metallic powder
B22F 12/00 - Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
Provided herein is a method of making a three-dimensional object (31) by bottom-upadditive manufacturing, which method may include: providing a carrier platform (14), a light source (13), and a light transmissive window (11) therebetween, the light transmissive window comprising a gas permeable member having a top surface and a bottom surface; depositing a liquid resin (21) on the window, the resin comprising a cyclic olefin monomer and a ring-opening metathesis polymerization (ROMP) photocatalyst; contacting a gas to said gas permeable member bottom surface; and exposing said resin to light from said light source while advancing said carrier platform away from said window to form said three-dimensional object on said carrier platform. An apparatus useful for carrying out the method and a method useful for recycling the object are also provided.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/255 - Enclosures for the building material, e.g. powder containers
B29C 64/307 - Handling of material to be used in additive manufacturing
B33Y 30/00 - 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 - Details thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B33Y 70/00 - Materials specially adapted for additive manufacturing
C08G 61/08 - Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms prepared by ring-opening of carbocyclic compounds of carbocyclic compounds containing one or more carbon-to-carbon double bonds in the ring
20.
ONE PART MOISTURE CURABLE RESINS FOR ADDITIVE MANUFACTURING
in situin situ that sequentially reacts with the remainder of the polymerization product to form urea linkages and thereby produce a three-dimensional object comprising polyurea. One part (1K) dual cure resins useful for the method are also provided.
(i)(ii)(ii) a heat polymerized polymer intermixed with said light polymerized polymer; (b) comminuting the object to produce a particulate material therefrom; (c) contacting the particulate material to a polar, aprotic solvent for a time and at a temperature sufficient to extract the heat polymerized polymer from the particulate material into said solvent, leaving residual particulate material comprising said light polymerized polymer in solid form; (d) separating the residual particulate material from said solvent; and then (e) separating the heat polymerized polymer from said solvent to provide a reusable thermoplastic polymer material in solid form.
B29C 64/129 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
22.
INHIBITION OF CRYSTALLIZATION IN POLYURETHANE RESINS
A resin composition useful for additive manufacturing is provided, which resin composition may exhibit improved shelf life through inhibition of crystallization. Such resin composition may include a crystallization inhibitor as taught herein, and/or a prepolymer produced by reaction of an isocyanate with multiple isomers and comprising a lower percentage of the structurally symmetric isomer. Methods of forming a three-dimensional object using such resin composition are also provided.
Methods of making a three-dimensional object from a light polymerizable resin are described. A method may include: (a) providing a window, a light polymerizable resin, a laterally translatable substrate between said window and said resin to which said resin is adhered, and a carrier platform above said window; (b) irradiating said resin with light through said window and said translatable substrate, and vertically advancing said carrier away from said window, to produce a growing object on said carrier platform and consume resin beneath said growing object; and (c) laterally advancing said translatable substrate with said resin adhered thereto across said window to drag fresh resin beneath said growing object, continue producing said growing object and continue consuming fresh resin, until said three-dimensional object is produced.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/232 - Driving means for motion along the axis orthogonal to the plane of a layer
B29C 64/236 - Driving means for motion in a direction within the plane of a layer
B33Y 30/00 - 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 - Details thereof or accessories therefor
B33Y 70/00 - Materials specially adapted for additive manufacturing
Provided herein is a method of making a flexible partial denture, which may include: (a) producing a partial denture base by additive manufacturing (e.g., bottom-up or top-down stereolithography) from a dual cure resin, with the dual cure resin comprising a light polymerizable component and a heat polymerizable component, with the denture base including at least one tooth socket; (b) inserting an acrylic artificial tooth into each at least one tooth socket to produce an assembled intermediate product; and then (c) baking said assembled intermediate product for a time sufficient to cure said heat polymerizable component in said denture base and retained dual cure resin, bond said tooth into each at least one socket with said retained dual cure resin, and produce said flexible partial denture. A flexible partial denture produced and resin formulations useful for the same are also provided.
C08L 51/08 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
25.
MECHANICALLY ANISOTROPIC 3D PRINTED FLEXIBLE POLYMERIC SHEATH
A connective or supportive sheath comprising, consisting of, or consisting essentially of a hollow tube having a circumferential or perimeter wall, the wall having an inner surface and an outer surface, the wall comprising interconnected, radially projecting, partitions, the partitions forming radially extending pores, the pores extending from said inner surface through said outer surface, and wherein the tube is comprised of, consists of, or consists essentially of a flexible or elastic polymer.
A61B 17/11 - Surgical instruments, devices or methods, e.g. tourniquets for closing wounds, or holding wounds closed, e.g. surgical staples; Accessories for use therewith for performing anastomosis; Buttons for anastomosis
A61L 27/40 - Composite materials, i.e. layered or containing one material dispersed in a matrix of the same or different material
Provided herein according to aspects of the present invention is a method of additively manufacturing an object having a particle surface coating thereon, using an intermediate object produced in an additive manufacturing process by light polymerization of a dual cure resin, said intermediate object having residual dual cure resin from which it was produced remaining on a surface portion thereof in unpolymerized form; forming a solid particle coating adhered to the resin coating film; and then further curing the intermediate object.
B29C 64/00 - 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
C08G 63/60 - Polyesters derived from hydroxy carboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from the reaction of a mixture of hydroxy carboxylic acids, polycarboxylic acids and polyhydroxy compounds
C09D 4/06 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups
28.
CLEANING OF ADDITIVELY MANUFACTURED OBJECTS BY VACUUM CYCLING NUCLEATION
A method of making an object from a data file and a light polymerizable resin by additive manufacturing includes the steps of: (a) optionally modifying the data file to add additional vacuum cycling nucleation (VCN) nucleation sites to surfaces of the object (2A); (b) producing the object from the data file and the resin by light polymerization in an additive manufacturing process (3), optionally under conditions in which additional VCN nucleation sites are added to surfaces of the object, the object having residual resin adhered to the surface thereof; and then (c) cleaning the residual resin from the object with a wash liquid by vacuum cycling nucleation (4).
B08B 3/10 - Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
B08B 3/12 - Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
29.
CUSHIONS CONTAINING SHOCK ABSORBING TRIPLY PERIODIC LATTICE AND RELATED METHODS
An additively manufactured cushion includes an array of interconnected surface lattice unit cells. The surface lattice unit cells are comprised of a unit cell surface portion configured as a Schoen F-RD minimal surface unit cell, anhd the unit cell surface portion is comprised of a rigid, flexible, or elastic polymer. In some embodiments, the surface lattice unit cells have an average width of from 1 to 100 millimeters and an average volume fraction of from 5 or 10 percent to 50 or 60 percent.
The present disclosure describes a resin cassette for an additive manufacturing apparatus. The resin cassette includes a light-transmissive window, a frame connected to and surrounding the window, and at least one dame connected to the frame. The frame and window form a well for receiving a light polymerizable resin. The dam extends over and continuously contacts the window and partitions the well into a plurality of independent build regions, each independent build region configured for receiving different light polymerizable resins. Additive manufacturing apparatuses and methods of concurrently making three-dimensional objects are also described.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/259 - Enclosures for the building material, e.g. powder containers interchangeable
B29C 64/171 - Processes of additive manufacturing specially adapted for manufacturing multiple 3D objects
An additive manufacturing apparatus (10) includes (a) a light polymerizable resin unit comprising a surface on which a light polymerizable resin can be supported; (b) a light engine (17) configured to illuminate a region of the light polymerizable resin unit; (c) a carrier platform on which an object can be produced; (d) a drive assembly operatively associated with the carrier platform for advancing said carrier platform (12) and said light polymerizable resin unit away from one another as said object is produced; (e) a purge chamber (300) surrounding at least a portion of said light engine (17); and (f) a purge gas in said purge chamber, or a purge gas supply operatively associated with said purge chamber (300).
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/277 - Arrangements for irradiation using multiple radiation means, e.g. micromirrors or multiple light-emitting diodes [LED]
B33Y 30/00 - 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 - Details thereof or accessories therefor
B29C 64/371 - Conditioning of environment using an environment other than air, e.g. inert gas
32.
DUAL CURE ADDITIVE MANUFACTURING RESINS FOR THE PRODUCTION OF OBJECTS WITH MIXED TENSILE PROPERTIES
(i)(ii)(i)(i) a chain extender selected from the group consisting of polyols, polyamines, and combinations thereof. Methods of making a three-dimensional object having at least two portions with different glass transition temperatures, and objects so produced, are also provided.
Systems, methods, and devices may be configured to detect and remediate component failures in three-dimensional object printers (10, 10a-f) preemptively. For example, systems may include: (a) a plurality of printers (10, 10a-f) each configured to produce three-dimensional objects (13), each printer including: (i) a plurality of subsystems; and (ii) at least one sensor; and (b) processor(s) (41, 42) and memory resource(s) (21) storing an inventory of available replacement components for at least some of said subsystems. The one or more memory resources may (21) store instructions that may cause the one or more processors to: (i) identify a predetermined pattern in data sensed during a process of producing a three-dimensional object by a sensor of a printer as an indicator of likely failure of a subsystem or component thereof; and (ii) assign a component in inventory to said printer based on a unique identifier of the printer and the indicator of likely failure identified in the signal.
The present disclosure describes an additive manufacturing apparatus. The apparatus includes a chamber (11) having a planar circumferential top edge portion (12) defining a chamber orifice (13); a stage (15) movably positioned in the chamber (11), the two together configured to receive a viscous resin; a dispenser (30) facing the stage (15) and operatively associated therewith, the dispenser (30) configured to apply a planar coating of viscous resin; a primary drive (22) operatively associated with the dispenser (30) and chamber (11), the primary drive (22) configured to move the dispenser (30) across the chamber orifice (13); a light engine (40) facing the stage (15) and operatively associated therewith, the light engine (40) configured to expose a coating of resin on the stage (15) planar top surface (12) to patterned light; and a stage drive (24) operatively associated with the stage (15) and configured to retract the stage (15) into the chamber (11), following exposure of a coating of resin. Methods of making a three-dimensional object by additive manufacturing are also described.
B29C 64/129 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
B29C 64/188 - Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
B29C 70/58 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only
B29C 70/00 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
B33Y 30/00 - 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 - Details thereof or accessories therefor
B33Y 70/10 - Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
the correspondence of the mechanical properties of said lattice to the desired mechanical properties of the object and the compatibility of adjacent lattices in adjacent work cells with one another, then performing a modification operation on the lattice of a work cell.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/386 - Data acquisition or data processing for additive manufacturing
(i)(ii) (iii) (iv) (iv) a non-reactive diluent, which resin is useful for the production of three-dimensional objects by additive manufacturing. Methods of using the same are also provided.
Provided herein is a dual cure resin useful for the production of objects by stereolithography, said resin comprising a mixture of: (a) a light-polymerizable component; and (b) a heat-polymerizable component, said heat-polymerizable component comprising: (i) a dicyclopentadiene-containing polyepoxide resin; (ii) a cyanate ester resin; (iii) an epoxy-reactive toughening agent; and (iv) a core shell rubber toughener.
C08F 2/48 - Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
C08F 283/10 - Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass on to polymers containing more than one epoxy radical per molecule
B33Y 70/00 - Materials specially adapted for additive manufacturing
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules
In some embodiments, a method of determining the fill level of a resin pool in a bottom-up additive manufacturing apparatus includes the steps of: (a) providing an additive manufacturing apparatus including a build platform and a light transmissive window (12), the build platform (15) and the window (12) defining a build region therebetween, with the window (12) carrying a resin pool, the pool having a resin top surface portion; (b) advancing the build platform (15) and the window (12) towards one another until the build platform (15) contacts the resin top surface portion; (c) detecting the impact of the build platform (15) with the resin top surface portion; and (d) determining the fill level of the resin pool from the detected impact.
B29C 64/129 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
A method of producing multiple batches of objects by stereolithography, includes the steps of: (a) dispensing an initial or subsequent batch of dual cure resin into a stereolithography apparatus (11), the resin including a light polymerizable component and a heat polymerizable component; (b) producing an intermediate object by light polymerization of the resin in the apparatus (12), wherein the intermediate object retains excess resin on a surface thereof; then (c) separating excess resin from the intermediate object (13); (d) blending the excess resin with additional dual cure resin to produce a subsequent batch of dual cure resin (15); (e) repeating steps (a) through (c), and optionally repeating step (d), to produce additional object(s); and (f) baking the objects, together or separately, to produce multiple batches of objects (14).
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B33Y 30/00 - 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 - Details thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
40.
SYSTEMS AND APPARATUSES FOR ADDITIVE MANUFACTURING WITH PROCESS UPDATE AND LOCK DOWN
An additive manufacturing system may include an additive manufacturing apparatus on which a process of producing a three-dimensional object from a material can be performed; an additive manufacturing process controller operatively associated with the additive manufacturing apparatus; and a first memory device operatively associated with the additive manufacturing process controller. The first memory device may include first and second stable release process programs each comprising a first subset of operations executable by said process controller. The system may include a second memory device comprising another stable release process program comprising a second subset of operations executable by said process controller. The system may include a selector configured to choose one of the stable release process programs to run on said process controller when producing a three-dimensional object on the additive manufacturing apparatus.
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B33Y 30/00 - 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 - Details thereof or accessories therefor
B33Y 50/00 - Data acquisition or data processing for additive manufacturing
G05B 19/4099 - Surface or curve machining, making 3D objects, e.g. desktop manufacturing
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
41.
ADDITIVELY MANUFACTURED PRODUCTS HAVING A MATTE SURFACE FINISH
Provided herein is a method of making an object having a matte surface finish by stereolithography. The method may include: (a) stereolithographically producing an intermediate object by polymerization of a dual cure resin with a first light having a first peak wavelength, the object having excess unpolymerized resin retained on the surface thereof; (b) separating a portion of said excess unpolymerized resin from said object while leaving a thin film of unpolymerized resin on the surface thereof; (c) partially curing said thin film by exposing said thin film to a second light at a second peak wavelength; and then (d) further curing said intermediate object by heating, microwave irradiating, or both heating and microwave irradiating, to produce an object having a matte surface finish.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/00 - 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
C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
Provided is a method of surface finishing an additively manufactured product, comprising: (a) providing an object comprised of a polymer, said object produced by the process of additive manufacturing from a light polymerizable resin, said object having residual resin from which it was produced remaining on a surface portion thereof in unpolymerized form; (b) partially removing said resin from said surface portion object under conditions in which a retained portion of said resin remains as a coating film on said surface portion; and then (c) light polymerizing said retained resin to form a surface coating on said surface portion therefrom and surface finish said additively manufactured product.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
Methods, systems, and/or apparatuses for making an object on a bottom-up stereolithography apparatus that includes a light source (11), a drive assembly /14), optionally a heater (34) and/or cooler (34), and a controller (15). The light source, optional heater and/ or cooler, and/or the drive assembly have at least one adjustable parameter that is adjustable by said controller. An example method comprises (a) installing a removable window cassette (12) on said apparatus in a configuration through which said light source projects, said window cassette comprising an optically transparent member (12a) having a build surface on which an object can be produced, and with said optically transparent member having at least one thermal profile associated therewith; and then (b) modifying said at least one adjustable parameter by said controller based on said at least one thermal profile of said optically transparent member; and then (c) producing the object on said build surface from a light-polymerizable liquid by bottom-up stereolithography.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/259 - Enclosures for the building material, e.g. powder containers interchangeable
B33Y 30/00 - 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 - Details thereof or accessories therefor
B33Y 50/00 - Data acquisition or data processing for additive manufacturing
45.
APPARATUSES FOR ADDITIVELY MANUFACTURING THREE-DIMENSIONAL OBJECTS
The present disclosure describes an apparatus (10) for additively manufacturing a three-dimensional object. The apparatus (10) includes a radiation source (13), a carrier (1) on which the three- dimensional object is made, an applicator assembly (3) configured to apply a polymerizable liquid, and a frame (8), with the applicator assembly and the radiation source connected to the frame. A first drive assembly (4) interconnects the applicator assembly and the frame and a second drive assembly (2) interconnects the carrier and the frame. The frame defines a build region (6) between the applicator assembly and the carrier. The applicator assembly includes a polymerizable liquid supply chamber, an application roller (11), and a metering roller (12). The applicator assembly may optionally include a post-metering roller (14). An apparatus comprising a first and a second applicator assembly and a smaller scale version of the apparatus are also described.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B05C 1/08 - Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller
B29C 64/194 - Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control during lay-up
B29C 64/232 - Driving means for motion along the axis orthogonal to the plane of a layer
B29C 64/236 - Driving means for motion in a direction within the plane of a layer
B33Y 30/00 - 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 - Details thereof or accessories therefor
46.
SHOCK ABSORBING LATTICE STRUCTURE PRODUCED BY ADDITIVE MANUFACTURING
An energy absorbing lattice structure having a predetermined energy absorbing load vector, may include, in combination, a first lattice substructure comprised of a first set of interconnected struts, and, interwoven with said first lattice substructure, a second lattice substructure comprised of a second set of interconnected struts.
(i)(ii)(ii) interleaved with and interconnected to said first three-dimensional transitional lattice, a second three-dimensional transitional lattice including a repeating array of said second lattice unit cell.
A method of separating excess resin from at least one object includes: (a) stereolithographically producing at least one object, each object having at least one retention feature (32) formed thereon, each object carrying excess resin on a surface thereof; then (b) mounting each object on at least one transfer frame (21), each transfer frame having at least one retention member (22) that mates with the retention feature; (c) connecting each transfer frame to a rotor with the at least one object carried thereon; (d) centrifugally separating excess resin from each object by spinning the rotor with each transfer frame connected thereto while the at least one object remains connected to each transfer frame by the retention feature; then (e) removing each transfer frame from the rotor, with excess resin separated from each at least one object thereon.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B08B 3/02 - Cleaning by the force of jets or sprays
B08B 7/02 - Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned
B29C 71/00 - After-treatment of articles without altering their shape; Apparatus therefor
49.
REMOVABLE WINDOW CASSETTE FOR AN ADDITIVE MANUFACTURING APPARATUS
A removable window cassette (100) for a bottom-up stereolithography apparatus includes (a) a light-transmissive window (110) having a rigid bottom portion (112), a semipermeable top portion (114), and a fluid flow region therebetween; (b) a circumferential frame (120) surrounding said window and into which said window is recessed, said frame having a top portion, a bottom portion, and an internal wall portion (120C), said frame internal wall portion defining with said window semipermeable top portion a well into which a polymerizable liquid may be received; and (c) a plurality of clamp draw-in pins (140) connected to said frame bottom portion and extending downward therefrom; and (d) at least a first and second port (150A,150B) connected to said frame bottom portion, with said first port in fluid communication with said second port through said window fluid flow region.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/259 - Enclosures for the building material, e.g. powder containers interchangeable
B33Y 30/00 - 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 - Details thereof or accessories therefor
Provided herein is a resin product useful for the production of three-dimensional objects by additive manufacturing, and methods using the same. The resin may include a reactive blocked prepolymer comprising a prepolymer blocked with reactive blocking groups; a polyol; a photoinitiator; and at least one organometallic catalyst. A packaged product useful for the production of three-dimensional objects by additive manufacturing, the product comprising a single container having a single chamber and a resin in the chamber with all components mixed together, is also provided.
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
A removable window cassette for a bottom-up stereolithography apparatus includes (a) a light-transmissive window having a rigid bottom portion and a semipermeable top portion, with the rigid bottom portion comprised of a thermally conductive material; (b) a circumferential frame surrounding the window and into which the window is recessed, the frame having a top portion, a bottom portion, and an internal wall portion, the frame internal wall portion defining with the window semipermeable top portion a well into which a polymerizable liquid may be received; and (c) at least one thermoelectric device in the circumferential frame and in thermal contact with the rigid bottom portion.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B33Y 30/00 - 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 - Details thereof or accessories therefor
52.
REMOVABLE BUILD PLATFORM FOR AN ADDITIVE MANUFACTURING APPARATUS
A removable build platform (100) for a bottom-up stereolithography apparatus includes (a) a body (110) having a top portion (120), a bottom portion (130), a front portion (140), a back portion (150), and opposite side portions (160), said bottom portion (130) having a build surface (132) on which objects can be produced by stereolithography; (b) a plurality of clamp draw-in pins (122) connected to said body top portion (120) and extending upward therefrom; and (c) a lifting slot formed in each of said side portions (160), with said lifting slots (162) parallel to and aligned with one another.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/259 - Enclosures for the building material, e.g. powder containers interchangeable
B33Y 30/00 - 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 - Details thereof or accessories therefor
Provided herein is a method of recycling additively manufactured articles or recovered coating material that comprises a crosslinked polymer formed from a single-cure resin comprising a reactive blocked prepolymer, into a regenerated resin useful for additive manufacturing. Recyclable light-polymerizable resins, methods of making a recyclable objects from such resins, and methods for sustainable manufacturing are also provided.
The present invention concerns methods of forming a three-dimensional object, and polymerizable liquids such as dual cure resins useful for making a three-dimensional object by sterolithography, such as by continuous liquid interface production (CLIP), wherein the three-dimensional object is flame retardant.
B33Y 70/00 - Materials specially adapted for additive manufacturing
B33Y 80/00 - Products made by additive manufacturing
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
55.
METHOD FOR RAPID ENCAPSULATION OF MICROELECTRONIC DEVICES
A method of encapsulating at least one object in a polymer shell includes (a) providing a carrier having a release surface and at least one object releasably secured thereto, each object having a heighth dimension and a width dimension; (b) providing a light polymerizable resin, the resin supported on a light transmissive window; (c) advancing each object on the carrier into the light polymerizable resin to a position spaced away from the window by a distance sufficient to maintain a dead zone or release layer of unpolymerized resin directly on the window; (d) forming a first portion of the polymer shell around each object by projecting patterned light through the window; (e) forming a subsequent portion of a polymer shell on or around each object by advancing the object on the carrier away from the window and projecting patterned light through the window; and (f) repeating step (e) until each object is encapsulated in a polymer shell.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
H01L 21/56 - Encapsulations, e.g. encapsulating layers, coatings
(i)e.g.,(ii) (iii) (iii) a polymer shell upper portion, said upper portion having a two-dimensional array of openings formed therein, which array of openings corresponds to said two dimensional contact array; wherein one or both of said polymer shell upper and lower portions are produced by the process of additive manufacturing; and (b) enclosing said integrated circuit between said polymer shell lower portion and said polymer shell upper portion with said contact array aligned with array of openings to produce a integrated circuit packaged within a polymer shell.
B29C 64/106 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
H01L 23/053 - Containers; Seals characterised by the shape the container being a hollow construction and having an insulating base as a mounting for the semiconductor body
57.
PRODUCTION OF LOW DENSITY PRODUCTS BY ADDITIVE MANUFACTURING
Provided herein according to some embodiments is polymerizable liquid useful for the production of a three-dimensional object by additive manufacturing, said polymerizable liquid comprising a mixture of: (a) at least one photopolymerizable component; (b) a photoinitiator; (c) at least one heat polymerizable component; and (d) heat expandable microspheres. A method of making a three-dimensional object from such a polymerizable liquid by additive manufacturing and objects so produced are also provided.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B33Y 70/00 - Materials specially adapted for additive manufacturing
B29C 64/40 - Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
58.
BRANCHED REACTIVE BLOCKED PREPOLYMERS FOR ADDITIVE MANUFACTURING
nn, where X is a hydrocarbyl group, n is at least 3, and each A is an independently selected substituent of Formula I: (I) where R is a hydrocarbyl group, R' is O or NH, and Z is a blocking group; (b) a polyol and/or polyamine chain extender; (c) optionally a reactive diluent; and (d) a photoinitiator. A method of use of the polymerizable liquid to make a three-dimensional object by additive manufacturing and prepolymer compounds useful for the same are also provided.
C08G 18/67 - Unsaturated compounds having active hydrogen
C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
60.
METHOD OF TREATING ADDITIVE MANUFACTURING OBJECTS WITH A COMPOUND OF INTEREST
Provided is a method of making an object from a dual cure resin by additive manufacturing, which object is at least partially impregnated with one or more additives, including: (a) producing a green intermediate object from the dual cure resin by additive manufacturing; (b) optionally cleaning the object; (c) further curing the object; and then (d) at least partially immersing the object in a solvent containing the additive under conditions sufficient to at least partially impregnate the object with the additive. An object produced by such method is also provided.
B33Y 70/00 - Materials specially adapted for additive manufacturing
B33Y 80/00 - Products made by additive manufacturing
B29C 64/106 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
B29C 64/188 - Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
B29C 71/00 - After-treatment of articles without altering their shape; Apparatus therefor
B29K 75/00 - Use of polyureas or polyurethanes as moulding material
G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
61.
STEREOLITHOGRAPHY APPARATUS WITH INDIVIDUALLY ADDRESSABLE LIGHT SOURCE ARRAYS
A bottom-up stereolithography apparatus includes a frame; a light-transmissive window the window having a top surface portion; a drive assembly connected to the frame (and in some embodiments positioned above the light-transmissive window); a micro-LED or a vertical cavity surface emitting laser (VCSEL) source array to the frame and positioned below the light-transmissive window; and a controller operatively associated with the drive assembly and the source array, the controller configured for producing an object on the elevator assembly from a polymerizable resin on the window by bottom-up stereolithography.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/129 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
62.
SUSTAINABLE CHEMISTRY SYSTEMS FOR RECYCLABLE DENTAL MODELS AND OTHER ADDITIVELY MANUFACTURED PRODUCTS
Provided herein are methods of recycling additively manufactured objects, which may include making a reactive particulate material by recycling preformed articles or recovered coating material. Methods of use of the reactive particulate material and material sets including the same are also provided.
B29C 64/165 - Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
C08F 2/48 - Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
e.g., e.g., an emulsion, suspension or dispersion polymerization process), to form said reactive particulate material. Methods of use of the reactive particulate material and material sets including the same are also provided.
B29C 64/165 - Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
C08F 2/48 - Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
A chemical absorber to absorb and release compounds includes a porous scaffold of lattices, modified surfaces of the scaffold, wherein the modification is selected based upon an ability to bond with or release a particular compound, and a center hole in the scaffold to accommodate a guide wire.
A61F 2/01 - Filters implantable into blood vessels
B01D 53/04 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
B01D 53/14 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
B01D 53/22 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
A method of separating excess resin (15) from at least one object (11), includes: (a) stereolithographically producing at least one object (11) on at least one carrier platform (10), each carrier platform (10) having a planar build surface to which at least one object (11) is connected, each object (11) carrying excess resin (15) on a surface thereof; then (b) mounting each carrier platform (10) to a rotor (31); (c) centrifugally separating excess resin (15) from each object (11) by spinning the rotor (31) with each carrier platform (10) connected thereto while each object (11) remains connected to each carrier platform (10); and then (d) removing each carrier platform (10) from the rotor (31) with each object (11) thereon, with excess resin (15) separated therefrom.
B08B 7/02 - Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned
(i)(ii) (ii) a second component that is different from the first component; applying a first reactive coating composition to a surface portion of the object to form a first coating thereon; optionally, but in some embodiments preferably, applying a second reactive coating composition to the first coating to form a second coating thereon; and heating the object at (and for) a time and to a temperature sufficient to bond the first coating to the surface portion, and bond the second coating when present to the first coating, and form the cured object having a surface coating bonded thereto.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
A stereolithography apparatus includes a light transmissive window defining a build region in which a polymerizable resin can be supported, the window characterized by a transmission spectra curve having a low transmissivity region between first and second high transmissivity regions; a carrier platform positioned above the window; a drive operatively associated with the carrier platform and the window and configured for advancing the window and the carrier platform away from one another; an ultraviolet light source positioned beneath the window; at least one infrared heat source positioned beneath the window; at least one temperature sensor operatively associated with the build region and configured to sense (directly or indirectly) the temperature of a polymerizable resin in the build region; and a temperature controller operatively associated with the temperature sensor and the infrared heat source, the controller configured to intermittently activate the infrared heat source to an elevated temperature at which the emission spectra peak for the heat source is within the first high transmissivity region.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B33Y 30/00 - 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 - Details thereof or accessories therefor
Provided is a method of making a coated object, which may include stereolithographically producing a green intermediate object from a dual cure polymerizable resin, the intermediate object containing uncured polymerizable material therein; then, optionally cleaning the green object; then, in any order: coating at least one surface portion of the object with a particulate material; and heating the object sufficiently to further cure the object; the coating and/or heating steps carried out under conditions in which uncured polymerizable material sweats (or exudes) to the surface of said object, and wherein the uncured polymerizable material contacts the particulate material, polymerizes, and bonds the particulate material to the surface of the object during the coating and/or heating steps. Also provided is a coated object produced by the method.
B29C 64/188 - Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
69.
SUSTAINABLE ADDITIVE MANUFACTURING RESINS AND METHODS OF RECYCLING
Provided herein are methods of recycling additively manufactured objects (e.g., stereolithographically produced objects), the additively manufactured objects comprising linear polyurethane, branched polyurethane, linear polyurea, branched polyurea, a copolymer thereof, or a combination thereof. Compositions comprising the same and methods of use thereof are also provided.
e.g.,(i) (ii) (ii) the stereolithography process including overexposing the boundary portion (as compared to the exposure of the adhesion portion or main body portion) with light; (b) optionally cleaning the object; and then (c) optionally baking the object to produce a further cured three-dimensional object.
B29C 64/129 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
71.
METHODS OF REDUCING DISTORTION OF ADDITIVELY MANUFACTURED OBJECTS
e.gii) the object comprising a body portion and a circumferential boundary portion (12) included in at least part of the body portion i(ii)the stereolithography process including overexposing the boundary portion (as compared to the exposure of the body portion) with light; (b) cleaning the intermediate object; and then (c) baking the object to produce the three-dimensional object.
B29C 64/129 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
72.
SHELF STABLE, LOW TIN CONCENTRATION, DUAL CURE ADDITIVE MANUFACTURING RESINS
Provided herein are methods of making (meth)acrylate blocked polyurethanes with zirconium catalysts, dual cure resins containing (meth)acrylate blocked polyurethanes and zirconium catalysts, methods of using the same in additive manufacturing, and products made therefrom.
e.g.,e.g., a free radical photoinitiator); (d) optionally, a urethane (meth)acrylate oligomer; (e) optionally, a reactive diluent; (f) optionally, but in some embodiments preferably, a pigment or dye; (g) optionally, but in some embodiments preferably, a reactive or non-reactive filler; and (h) optionally, an odor scavenger.
B29C 64/106 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
the correspondence of the mechanical properties of said lattice to the desired mechanical properties of the object, and the compatibility of adjacent lattices in adjacent work cells with one another.
(a)(b)(c) (d) (e)(e) producing said three-dimensional object by additive manufacturing from said modified image sequence file, said three-dimensional object having said selected internal feature included therein and/or external feature included thereon.
A method of making an object on a bottom-up stereolithography apparatus is provided. The apparatus includes a light source (11), a drive assembly (14), and a controller (15) operatively associated with the light source and the drive assembly, with the light source and/or the drive assembly having at least one adjustable parameter that is adjustable by the controller. The method includes installing a removable window cassette (12) on the apparatus in a configuration through which the light source projects, the window cassette comprising an optically transparent member, provided as a window (12a), having a build surface on which an object can be produced, and with the optically transparent member having and at least one variable property therein; and then modifying the at least one adjustable parameter by the controller based on the at least one variable optical property of the window; and then producing the object on the build surface from a light-polymerizable liquid by bottom-up stereolithography.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/20 - 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 - Details thereof or accessories therefor
B33Y 30/00 - 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 - Details thereof or accessories therefor
77.
REDUCTION OF SHRINKAGE OR WARPING IN OBJECTS PRODUCED BY ADDITIVE MANUFACTURING
An apparatus for producing a three-dimensional object by additive manufacturing includes a drive assembly operatively associated with a carrier and a window mount and configured to advance the carrier and the window mount away from one another. A first fluid switch is connected to a first fluid orifice when a window is present, or connected to the window mount and configured for connection to the window when the window is absent. A second fluid switch is connected to a second fluid orifice when the window is present, or connected to the window mount and configured for connection to the window when the window is absent. A fluid supply is connected to both the first and second fluid switch, and the fluid includes a polymerization inhibitor.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/255 - Enclosures for the building material, e.g. powder containers
G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
B33Y 30/00 - 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 - Details thereof or accessories therefor
79.
PERFORMANCE OPTIMIZATION IN ADDITIVE MANUFACTURING
(i) (ii) on the controller from the database the at least one physical characteristic for the specific resin batch and modifying the operating instructions based on the at least one physical characteristic; and then (e) producing the object from the batch of light polymerizable resin on the additive manufacturing apparatus with the modified operating instructions.
G05B 19/18 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
G06Q 50/00 - Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
B33Y 50/00 - Data acquisition or data processing for additive manufacturing
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B33Y 70/00 - Materials specially adapted for additive manufacturing
B29C 64/106 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
A method of making a three-dimensional object by additive manufacturing from a blended resin (e.g., a blended dual cure resin), the blended resin including (i) at least one light polymerizable first component and, (ii) optionally but preferably, at least one, or a plurality of, second solidifiable components that are different from said first component, the method including one or more of the steps of: (a) providing a first resin and a second resin, where the resins produce three-dimensional objects having different mechanical properties from one another when all are produced under the same process conditions; (b) mixing the first and second resins with one another to produce the blended resin, the blended resin producing a three-dimensional object having mechanical properties intermediate between that of objects produced by the first and second resins when all are produced under the same process conditions; and (c) dispensing the blended resin to the build region of an additive manufacturing apparatus; and then (d) optionally but preferably producing a three-dimensional object from the blended resin in the apparatus.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B33Y 30/00 - 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 - Details thereof or accessories therefor
B33Y 70/00 - Materials specially adapted for additive manufacturing
G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
B01F 13/10 - Mixing plant, including combinations of dissimilar mixers
Provided herein is a method of forming a three-dimensional object in which the polymerizable liquid includes a mixture of (i) a light polymerizable first component, and (ii) a heat polymerizable second component; the heat polymerizable second component comprising (i) a first blocked reactive constituent that is blocked with a volatile blocking group, and optionally (ii) a curative. Upon heating a formed three-dimensional intermediate sufficiently, the volatile blocking group is cleaved and vaporizes out of the three-dimensional intermediate, to form the three-dimensional object. Also provided is a three-dimensional object produced by the method. Further provided is a polymerizable liquid composition useful for carrying out the method, and prepolymers and monomers useful for the polymerizable liquid composition.
G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
G03F 7/027 - Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
G03F 7/038 - Macromolecular compounds which are rendered insoluble or differentially wettable
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
83.
DENTAL MODEL AND DIE ASSEMBLY AND METHOD OF MAKING THE SAME
An assembly useful for preparing a prosthetic crown for fitting to a tooth of a patient is accordingly described herein. The assembly includes (a) a polymer dental model having a shape corresponding to at least a portion of a dental arch of a patient and a socket formed therein, the socket having a socket wall, and (b) a polymer die having an upper portion configured in the shape of a tooth of a patient and a lower stem configured for insertion into the socket. At least one of the stem and the socket wall are configured to have both a relaxed position when the die is not in the socket, and a tensioned position when the die is fully inserted in the socket, so that the stem is firmly and accurately engaged by the socket when the die is inserted therein.
Provided is a method of making a three-dimensional object, which method may include the steps of: (a) producing an intermediate object (21) from a dual cure polymerizable liquid by additive manufacturing, the intermediate object having the shape of the three-dimensional object in warped or distorted form; (b) optionally washing the intermediate object; then (c) contacting the intermediate to a form (22), which form has a shape corresponding to the three-dimensional object, and with the intermediate conformed to the shape of the form; then (d) further curing the intermediate object in contact with the form to produce the three-dimensional object (24) under conditions in which the three-dimensional object retains a shape conformed to the form after separating therefrom; and then (e) separating the three-dimensional object from the form.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 69/00 - Combinations of shaping techniques not provided for in a single one of main groups , e.g. associations of moulding and joining techniques; Apparatus therefor
A method of making a three-dimensional object includes the steps of: (a) providing a carrier plate (15) and an optically transparent member (12) having a build surface, the carrier plate and the build surface defining a build region therebetween, with the build surface having a polymerizable liquid thereon; and(b)producing an object, e.g.,an intermediate object (31b), on the carrier plate by irradiating the build region with light through the optically transparent member and also advancing the carrier plate and the build surface away from one another while maintaining a continuous liquid interface between the carrier plate and the growing intermediate object, wherein: (i) the object includes a carrier plate contact segment, the contact segment including an edge portion; and(ii)the object further comprises a lip support (34b) extending from the contact segment edge portion outward from the contact segment, with the lip support formed on the carrier plate and at least partially surrounding the contact segment.
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/40 - Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
86.
INTEGRATED ADDITIVE MANUFACTURING SYSTEMS INCORPORATING IDENTIFICATION STRUCTURES
An integrated additive manufacturing system includes: a processor; a data repository including a database configured to record part configuration data for a part produced by the integrated additive manufacturing system; an additive manufacturing machine configured to manufacture a part through additive manufacturing; and a memory coupled to the processor. The memory includes computer readable program code that when executed by the processor causes the processor to perform operations including: obtaining a part image sequence including instructions for additively manufacturing the part on the additive manufacturing system; generating a unique identifier associated with the part; and modifying the part image sequence to create a merged image sequence including instructions for generating a manufactured part on the additive manufacturing machine with a representation of the unique identifier contained on or within the manufactured part.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/188 - Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
An integrated additive manufacturing system includes: (a) at least one resin supply (41); (b) a plurality of additive manufacturing machines (43) on which parts may be produced, each of the additive manufacturing machines (43) operatively associated with the at least one resin supply (41); and (c) at least one peripheral machine (200, 48, 220) operatively associated with each of the additive manufacturing machines and the at least one resin supply.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/386 - Data acquisition or data processing for additive manufacturing
B29C 64/188 - Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
88.
INTEGRATED ADDITIVE MANUFACTURING SYSTEMS INCORPORATING A FIXTURING APPARATUS
An integrated additive manufacturing system includes: (a) at least one resin supply (41); (b) a plurality of additive manufacturing machines (43) on which parts may be produced, each of said additive manufacturing machines (43) operatively associated with said at least one resin supply (41); and (c) at least one peripheral machine operatively associated with each of said additive manufacturing machines and said at least one resin supply, wherein said at least one peripheral machine comprises a part fixturing apparatus (200).
B29C 64/188 - Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
89.
TOUGH, HIGH TEMPERATURE POLYMERS PRODUCED BY STEREOLITHOGRAPHY
The present invention concerns methods of forming a three-dimensional object, and polymerizable liquids such as dual cure resins useful for making a three-dimensional object by sterolithography, such as by continuous liquid interface production (CLIP).
A method of making a composite article comprised of a first component (10) and a second component (30) includes (a) providing a first component (10) and an optically transparent member (22) having a build surface with the first component having a first three- dimensional interfacing segment formed thereon; (b) immersing the first three-dimensional interfacing segment in polymerizable liquid (21); (c) forming an intermediate object by irradiating a build region with light through an optically transparent member and also advancing the first three-dimensional component and the build surface away from one another to form from the polymerizable liquid (21) a second component (30) on said first three-dimensional interfacing segment, with the second component including a second three-dimensional interfacing segment in contact with the first three-dimensional interfacing segment; then (d) optionally washing the intermediate; and then (e) further solidifying the second three-dimensional component (30) on said first three-dimensional component (10) to form said composite article.
B29C 70/72 - Encapsulating inserts having non-encapsulated projections, e.g. extremities or terminal portions of electrical components
B29C 70/74 - Moulding material on a relatively small portion of the preformed part, e.g. outsert moulding
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
Provided herein according to some embodiments is a dual cure stereolithography resin that includes thermoplastic particles, which thermoplastic particles are insoluble in the resin and insoluble during a first, light, cure in which an intermediate object is produced, but then dissolve or swell in the intermediate object during the second, heat, cure.
Provided herein according to some embodiments is a dual cure stereolithography resin that includes a Diels-Alder adduct, which adduct is light polymerizable in the first, light, cure to produce an intermediate object, and on heating the intermediate object yields a bis- maleimide that can further react and/or polymerize during the second, heat, cure.
Provided herein is a method of forming a three-dimensional object (31) from a light-polymerizable resin (32) by advancing a carrier (22) for the growing three-dimensional object away from an optically transparent window (24) while projecting patterned light through the window to polymerize the resin and form the object on the carrier, the method comprising: adhering a flexible release sheet to the carrier, to which release sheet the growing three-dimensional object is adhered, the release sheet comprising(i)a flexible polymer sheet (11),(ii)an adhesive coating (12) on said sheet by which said sheet is adhered to the carrier; and(iii)a resin-compatible surface on said sheet to which said growing three-dimensional object is adhered.
B33Y 30/00 - 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 - Details thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
A method of making a three-dimensional object (31) is carried out by: (a) providing a carrier (15) and an optically transparent member (12) having a build surface, the carrier (15) and the build surface defining a build region therebetween, the optically transparent member (12) carrying a polymerizable liquid (21); (b) advancing the carrier (15) and the optically transparent member (12) away from one another to draw the polymerizable liquid (21) into the build region; then (c) optionally, partially retracting the carrier (15) and the optically transparent member (12) back towards one another; and then (d) irradiating the build region with light to form a growing three- dimensional object (31) from the polymerizable liquid (21); and then (e) cyclically repeating steps (b) to (d) while maintaining a continuous liquid interface (22) between the growing three-dimensional object (31) and the optically transparent member (12) until at least a portion of the three-dimensional object (31) is formed, while during at least some of the cyclically repeatings: (i) monitoring a transient increase in tension between the carrier (15) and the build surface through the growing three-dimensional object (31) during the advancing step (b), and optionally monitoring a transient increase in compression between the carrier (15) and the build surface through the growing three dimensional object during the partially retracting step (c); and then, when the transient increase in tension has substantially subsided, (ii) initiating the partially retracting step (c) when present, or initiating the irradiating step (d).
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
B33Y 30/00 - 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 - Details thereof or accessories therefor
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
Method of making a three-dimensional object, comprising the steps of: (a) providing a carrier platform on which the three-dimensional object can be formed; (b) producing the three-dimensional object, (c) immersing the object in a wash liquid with the object remaining adhered to the carrier platform; (d) agitating (i)the object in said wash liquid, (ii)the wash liquid with the object immersed therein, or (iii)both the object and the wash liquid, to at least partially remove residual resin from the surface of the object; (e) separating the object from the wash liquid, with the object remaining adhered to the carrier platform, (f) agitating the object to at least partially remove residual wash liquid from the surface thereof; and (g) repeating steps (c) through (f) to remove additional polymerizable resin from the surface thereof, wherein steps (c) through (f) are carried out in the same vessel.
B08B 3/10 - Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
B08B 3/12 - Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
Provided herein are methods of forming a three-dimensional object, which may be carried out by: (a) forming a three-dimensional intermediate by polymerization of a polymerizable liquid in an additive manufacturing process, the polymerizable liquid comprising a light polymerizable component; then (b) contacting at least a portion of the three-dimensional intermediate to a penetrant fluid, the penetrant fluid carrying a solidifiable component, the contacting step carried out under conditions in which the solidifiable component penetrates into the three-dimensional intermediate; (c) optionally but preferably separating the three-dimensional intermediate from the penetrant fluid; and then (d) solidifying and/or curing the solidifiable component in the three-dimensional intermediate to form the three-dimensional object.Provided herein are methods of forming a three-dimensional object, which may be carried out by: (a) forming a three-dimensional intermediate by polymerization of a polymerizable liquid in an additive manufacturing process, the polymerizable liquid comprising a light polymerizable component; then (b) contacting at least a portion of the three-dimensional intermediate to a penetrant fluid, the penetrant fluid carrying a solidifiable component, the contacting step carried out under conditions in which the solidifiable component penetrates into the three-dimensional intermediate; (c) optionally but preferably separating the three-dimensional intermediate from the penetrant fluid; and then (d) solidifying and/or curing the solidifiable component in the three-dimensional intermediate to form the three-dimensional object.
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
A method and an apparatus of forming a three-dimensional object, wherein the method includes providing a carrier and an optically transparent member having a build surface, said carrier and said build surface defining a build region therebetween; filling said build region with a polymerizable liquid, continuously or intermittently irradiating said build region with light through said optically transparent member to form a solid polymer from said polymerizable liquid, continuously or intermittently advancing (e.g., sequentially or concurrently with said irradiating step) said carrier away from said build surface to form said three-dimensional object from said solid polymer, said optically transparent member comprising a build plate for a three-dimensional printer comprising: an optically transparent first channel layer; an optically transparent, gas permeable second channel layer on the first channel layer; and a flexible, optically transparent, gas-permeable sheet having an upper and lower surface, the sheet upper surface comprising a build surface for forming a three-dimensional object, the sheet lower surface being positioned on the second channel layer.
B29C 64/129 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
B33Y 30/00 - 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 - Details thereof or accessories therefor
98.
METHOD AND SYSTEM FOR SPIN-COATING MULTI-LAYER THIN FILMS HAVING LIQUID CONSERVATION FEATURES
A system for retaining a spin-coating fluid when forming a thin film includes a rotatable chuck; a substrate on the rotatable chuck, the substrate having an interior area and an outer perimeter edge; and a fluid retention wall on the outer perimeter edge of the substrate, the fluid retention wall being configured to retain a spin-coating fluid deposited on the interior area of the substrate during rotation of the rotatable chuck.
H01L 21/67 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components
H01L 21/288 - Deposition of conductive or insulating materials for electrodes from a liquid, e.g. electrolytic deposition
H01L 21/683 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping
H01L 21/768 - Applying interconnections to be used for carrying current between separate components within a device
99.
THREE-DIMENSIONAL PRINTING METHOD AND APPARATUS FOR REDUCING BUBBLES BY DE-GASSING THROUGH BUILD PLATE
A method and an apparatus of forming a three-dimensional object includes providing a carrier and an optically transparent member having a build surface. The carrier and the build surface define a build region therebetween. The method further includes filling said build region with a polymerizable liquid; continuously or intermittently irradiating said build region with light through said optically transparent member to form a solid polymer from said polymerizable liquid; applying a reduced pressure and/or polymer inhibitor-enriched gas to the polymerizable liquid through the optically transparent member to thereby reduce a gas content of the polymerizable liquid; and continuously or intermittently advancing (e.g., sequentially or concurrently with said irradiating step) said carrier away from said build surface to form said three-dimensional object from said solid polymer.
B29C 64/129 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
B33Y 30/00 - 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 - Details thereof or accessories therefor
100.
PRODUCTION OF FLEXIBLE PRODUCTS BY ADDITIVE MANUFACTURING WITH DUAL CURE RESINS
Provided herein according to some embodiments is a method of forming a three-dimensional object comprised of polyurethane, polyurea, or copolymer thereof. In some embodiments, the three-dimensional object is flexible, has a Young's Modulus of 25 to 250 megapascals, has a tensile strength of 3 to 30 megapascals, and/or has a percent elongation at break of from 100 to 175.
G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
patents
