Additives for three-dimensional build materials or inks are described herein which, in some embodiments, can impart one or more structural enhancements to articles printed from the build materials. In one aspect, a polymerizable liquid comprises at least one additive including a plurality of cyclopolymerizable functionalities separated by an aliphatic linker or alkylene oxide linker.
B29C 64/129 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p. ex. par irradiation globale combinée avec un masque
C08F 224/00 - Copolymères de composés contenant un ou plusieurs radicaux aliphatiques non saturés, chaque radical ne contenant qu'une seule liaison double carbone-carbone et l'un au moins étant terminé par un hétérocycle contenant de l'oxygène
C09D 11/101 - Encres spécialement adaptées aux procédés d’imprimerie mettant en œuvre la réticulation par énergie ondulatoire ou par radiation de particules, p. ex. réticulation par UV qui suit l’impression
C09D 11/107 - Encres d’imprimerie à base de résines artificielles contenant des composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone à partir d'acides non saturés ou de leurs dérivés
2.
PHASE CHANGE INK PRINTING SYSTEM UTILIZING A COMPOSITE WAVEFORM
A 3D printing system (2) includes a build plate (6) supporting a 3D article (4), a drop on demand piezo (DODP) printhead (10), a horizontal movement mechanism (14), a supply (12) of phase change ink, and a controller. The controller (20) is configured to: operate the supply (12) and the DODP printhead (10) to maintain a liquid state of the phase change ink, position an upper surface of the 3D article at a build plane, scan the printhead over the upper surface, and operate the DODP printhead to deliver ink drops (55, 57) to pixel locations upon the upper surface. The operation of the DODP printhead includes, for individual ones of the ink drops: apply a secondary waveform (54) to a piezo actuator followed by a primary waveform (56) to the piezo actuator to generate two drops (55, 57) of liquified phase change ink that merge in flight before reaching and solidifying on the upper surface.
B29C 64/112 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des gouttelettes individuelles, p. ex. de buses de jet
A 3D printing system includes a build plate supporting a 3D article, a drop on demand piezo (DODP) printhead, a horizontal movement mechanism, a supply of phase change ink, and a controller. The controller is configured to: operate the supply and the DODP printhead to maintain a liquid state of the phase change ink, position an upper surface of the 3D article at a build plane, scan the printhead over the upper surface, and operate the DODP printhead to deliver ink drops to pixel locations upon the upper surface. The operation of the DODP printhead includes, for individual ones of the ink drops: apply a secondary waveform to a piezo actuator followed by a primary waveform to the piezo actuator to generate two drops of liquified phase change ink that merge in flight before reaching and solidifying on the upper surface.
B29C 64/112 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des gouttelettes individuelles, p. ex. de buses de jet
B29C 64/232 - Moyens d’entraînement pour un mouvement le long de l'axe orthogonal au plan d’une couche
B29C 64/236 - Moyens d’entraînement pour un mouvement dans une direction dans le plan d’une couche
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
In one aspect, compositions or build materials for use with an additive manufacturing system are described herein. In some embodiments, a composition described herein comprises a monomeric curable material, an oligomeric curable material, and a chain transfer agent. In some cases, the monomeric curable material comprises one or more (meth)acrylates and/or one or more (meth)acrylamides. Further, in some embodiments, the one or more (meth)acrylates and/or one or more (meth)acrylamides are hydrophilic or water soluble. Additionally, in some instances, the oligomeric curable material comprises one or more hydrolysable oligomeric species.
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
In one aspect, compositions or build materials for use with an additive manufacturing system are described herein. In some embodiments, a composition described herein comprises a monomeric curable material, an oligomeric curable material, and a chain transfer agent. In some cases, the monomeric curable material comprises one or more (meth)acrylates and/or one or more (meth)acrylamides. Further, in some embodiments, the one or more (meth)acrylates and/or one or more (meth)acrylamides are hydrophilic or water soluble. Additionally, in some instances, the oligomeric curable material comprises one or more hydrolysable oligomeric species.
C09D 11/101 - Encres spécialement adaptées aux procédés d’imprimerie mettant en œuvre la réticulation par énergie ondulatoire ou par radiation de particules, p. ex. réticulation par UV qui suit l’impression
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
Produits et services
Solid imaging materials used to create three-dimensional parts from digital data, namely, stereolithography photocurable resins for direct manufacturing and part prototyping in solid freeform fabrication processes
7.
Three-Dimensional Printing System with Resin Vessel Positioning System
A three-dimensional (3D) printing system includes a print engine and a resin vessel. The print engine includes a pair of support plates in facing relation that define a receiving space therebetween. The pair of support plates include a pair of profiled ramps and a pair of hooks extending into the receiving space. An outer surface of the resin vessel includes a plurality of fixed rollers and a pair of cam rollers. The plurality of fixed rollers are configured to partially engage the pair of profiled ramps when the resin vessel is translated into the receiving space. In response to being revolved about the horizontal axis, the pair of cam rollers are configured to engage the pair of hooks and to lift and translate the plurality of fixed rollers into complete engagement with the pair of profiled ramps.
A three-dimensional (3D) printing system includes a print engine and a resin vessel. The print engine includes a pair of support plates in facing relation that define a receiving space therebetween. The pair of support plates include a pair of profiled ramps and a pair of hooks extending into the receiving space. An outer surface of the resin vessel includes a plurality of fixed rollers and a pair of cam rollers. The plurality of fixed rollers are configured to partially engage the pair of profiled ramps when the resin vessel is translated into the receiving space. In response to being revolved about the horizontal axis, the pair of cam rollers are configured to engage the pair of hooks and to lift and translate the plurality of fixed rollers into complete engagement with the pair of profiled ramps.
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
B29C 64/255 - Enceintes pour le matériau de construction, p. ex. récipients pour poudre
B33Y 30/00 - Appareils pour la fabrication additiveLeurs parties constitutives ou accessoires à cet effet
B29C 64/307 - Manipulation du matériau destiné à être utilisé en fabrication additive
B33Y 40/00 - Opérations ou équipements auxiliaires, p. ex. pour la manipulation de matériau
9.
APPARATUS AND METHOD FOR ACCURATELY LEVELING A BUILD PLATE
A 3D printing system includes a resin vessel, a build plate positioning mechanism, a plurality of lower datums, and a build plate. The build plate positioning mechanism includes a pair of L -shaped brackets that individually include a fixed vertical portion, a movable portion, and an adjustment mechanism. The movable portion includes a lateral lower end. The adjustment mechanism is configured to adjust and set an angular position of the lateral lower end with respect to the fixed vertical portion. The build plate has a plurality of upper datums configured to engage and align to the plurality of lower datums when the build plate is placed upon the pair of L-shaped brackets. The plurality of lower datums are arranged upon the pair of L-shaped brackets to enable the adjustment mechanisms of the pair of L-shaped brackets to provide an independent angular adjustment of the build plate along two lateral axes.
A 3D printing system includes a resin vessel, a build plate positioning mechanism, a plurality of lower datums, and a build plate. The build plate positioning mechanism includes a pair of L-shaped brackets that individually include a fixed vertical portion, a movable portion, and an adjustment mechanism. The movable portion includes a lateral lower end. The adjustment mechanism is configured to adjust and set an angular position of the lateral lower end with respect to the fixed vertical portion. The build plate has a plurality of upper datums configured to engage and align to the plurality of lower datums when the build plate is placed upon the pair of L-shaped brackets. The plurality of lower datums are arranged upon the pair of L-shaped brackets to enable the adjustment mechanisms of the pair of L-shaped brackets to provide an independent angular adjustment of the build plate along two lateral axes.
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
B29C 64/232 - Moyens d’entraînement pour un mouvement le long de l'axe orthogonal au plan d’une couche
B29C 64/241 - Moyens d’entraînement pour mouvement rotatif
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
A 3D printing system includes a build vessel, a build platen, a projection light engine, a movement mechanism, and a controller. The build vessel is configured to contain a photocurable liquid. The build vessel includes a lower wall having an opening with an opening width along a lateral X-axis and a transparent sheet that closes the opening. The build platen has a lower surface in facing relation with the transparent sheet. The build platen defines a platen width along a lateral X-axis that is greater than the opening width. The projection light engine is positioned below the build vessel. The projection light engine is configured to project pixelated radiation up to a build plane that is less than one millimeter above the transparent sheet.
B29C 64/129 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p. ex. par irradiation globale combinée avec un masque
B29C 64/232 - Moyens d’entraînement pour un mouvement le long de l'axe orthogonal au plan d’une couche
B29C 64/236 - Moyens d’entraînement pour un mouvement dans une direction dans le plan d’une couche
A 3D printing system includes a build vessel, a build platen, a projection light engine, a movement mechanism, and a controller. The build vessel is configured to contain a photocurable liquid. The build vessel includes a lower wall having an opening with an opening width along a lateral X-axis and a transparent sheet that closes the opening. The build platen has a a lower surface in facing relation with the transparent sheet. The build platen defines a platen width along a lateral X-axis that is greater than the opening width. The projection light engine is positioned below the build vessel. The projection light engine is configured to project pixelated radiation up to a build plane that is less than one millimeter above the transparent sheet.
B29C 64/255 - Enceintes pour le matériau de construction, p. ex. récipients pour poudre
B29C 64/129 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p. ex. par irradiation globale combinée avec un masque
B29C 64/236 - Moyens d’entraînement pour un mouvement dans une direction dans le plan d’une couche
B29C 64/277 - Agencements pour irradiation utilisant des moyens de rayonnement multiples, p. ex. des micro-miroirs ou des diodes électroluminescentes multiples [LED]
A three-dimensional printing system includes a build vessel, a build platen, a transparent fluid, a photocurable fluid, a first fluid source, a light engine, and a controller. The transparent fluid is vertically bounded between a transparent plate and a build plane. The photocurable fluid vertically bounded between the build plane and an upper fluid surface. The controller is configured to: (1) operate the first fluid source to lower the build plane with an average velocity V by extraction of the transparent fluid from the build vessel; (2) concurrent with operating the first fluid source, operate the light engine to lower a focal plane of the light engine at the average velocity V; and (3) concurrent with operating the first fluid source, operate the light engine to selectively irradiate the build plane and to accrete the 3D article in a downward direction by the average velocity V.
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/129 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p. ex. par irradiation globale combinée avec un masque
B29C 64/232 - Moyens d’entraînement pour un mouvement le long de l'axe orthogonal au plan d’une couche
B29C 64/277 - Agencements pour irradiation utilisant des moyens de rayonnement multiples, p. ex. des micro-miroirs ou des diodes électroluminescentes multiples [LED]
Polymerizable liquids for 3D printing applications are described herein which, in some embodiments, impart flame resistant and/or flame retardant properties to articles printed from the liquids. The polymerizable liquids may also impart desirable mechanical properties to the articles. In some embodiments, a polymerizable liquid comprises a curable isocyanurate component in an amount of at least 5 wt. %, based on total weight of the polymerizable liquid, and a brominated acrylate ester component. Additionally, methods of printing three-dimensional articles using said polymerizable liquids are described herein.
C09D 4/00 - Compositions de revêtement, p. ex. peintures, vernis ou vernis-laques, à base de composés non macromoléculaires organiques ayant au moins une liaison non saturée carbone-carbone polymérisable
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
B29K 105/00 - Présentation, forme ou état de la matière moulée
A three-dimensional printing system (2) includes a build vessel (4), a build platen (8), a transparent fluid (12), a photocurable fluid (16), a first fluid source (22), a light engine (28), and a controller (30). The transparent fluid is vertically bounded between a transparent plate (6) and a build plane (14). The photocurable fluid vertically bounded between the build plane and an upper fluid surface. The controller is configured to: (1) operate the first fluid source to lower the build plane with an average velocity V by extraction of the transparent fluid from the build vessel; (2) concurrent with operating the first fluid source, operate the light engine to lower a focal plane of the light engine at the average velocity V; and (3) concurrent with operating the first fluid source, operate the light engine to selectively irradiate the build plane and to accrete the 3D article in a downward direction by the average velocity V.
B29C 64/129 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p. ex. par irradiation globale combinée avec un masque
B29C 64/255 - Enceintes pour le matériau de construction, p. ex. récipients pour poudre
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
In the context of multi-axis motion control systems, a modular frame is disclosed comprising two or more subassemblies that each comprise one or more motion actuators. Each subassembly comprises a reference interface surface along which the subassembly may be attached to that of an adjoining subassembly. Motion actuators of a first subassembly are aligned to a first reference interface surface so that motion vectors of the actuators come into precise alignment with the motion vectors of actuators on a second subassembly when the first subassembly and second subassembly are joined. In forming an additive manufacturing system, a material depositing component may be attached to the first subassembly and tested as a unit with the first subassembly before the second subassembly is made or becomes attached to the first subassembly.
B23Q 15/007 - Commande automatique ou régulation du mouvement d'avance, de la vitesse de coupe ou de la position tant de l'outil que de la pièce pendant l'action de l'outil sur la pièce
B23Q 1/01 - Bâtis, bancs, colonnes ou éléments similairesAgencement des glissières de guidage
In the context of multi-axis motion control systems, a modular frame is disclosed comprising two or more subassemblies that each comprise one or more motion actuators. Each subassembly comprises a reference interface surface along which the subassembly may be attached to that of an adjoining subassembly. Motion actuators of a first subassembly are aligned to a first reference interface surface so that motion vectors of the actuators come into precise alignment with the motion vectors of actuators on a second subassembly when the first subassembly and second subassembly are joined. In forming an additive manufacturing system, a material depositing component may be attached to the first subassembly and tested as a unit with the first subassembly before the second subassembly is made or becomes attached to the first subassembly.
B25J 9/02 - Manipulateurs à commande programmée caractérisés par le mouvement des bras, p. ex. du type à coordonnées cartésiennes
B33Y 30/00 - Appareils pour la fabrication additiveLeurs parties constitutives ou accessoires à cet effet
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
18.
Stereolithography System with Parallel Processing Between Layer Formation and Selective Curing
A three-dimensional (3D) printing system includes a vessel configured to contain a photocurable resin, a coating subsystem including a coater blade, a build plate coupled to a vertical movement mechanism, an imaging system configured to selectively image the photocurable resin at a build plane, and a controller. The controller is configured to operate the vertical movement mechanism to position an upper surface of the build plate at the build plane, translate a lower edge of the coater blade over the build plane along a scan direction, and concurrent with translating the lower edge of the coater blade, operate the imaging system to selectively image the build plane while maintaining an exclusion zone that includes a digital shadow that translates with the coater blade, the digital shadow includes an area of the coater blade and a fluidic wake area that follows the coater blade.
B29C 64/273 - Agencements pour irradiation par faisceaux laserAgencements pour irradiation par faisceaux d’électrons [FE] à pulsationsAgencements pour irradiation par faisceaux laserAgencements pour irradiation par faisceaux d’électrons [FE] à modulation de fréquence
B29C 64/135 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p. ex. par irradiation globale combinée avec un masque la source d’énergie étant concentrée, p. ex. lasers à balayage ou sources lumineuses focalisées
B29C 64/255 - Enceintes pour le matériau de construction, p. ex. récipients pour poudre
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29K 105/00 - Présentation, forme ou état de la matière moulée
In one aspect, water dispersible support materials for use with a three-dimensional printing system are described herein. In some embodiments, a support material described herein comprises a phase change wax component and an ethoxylated polyethylene having the formula H—(CH2)m—(OCH2CH2)n—OH, wherein m is an integer from 22 to 60 and n is an integer from 2 to 200. In some cases, the phase change wax component and the ethoxylated polyethylene are each present in the support material in an amount of 20-80% by weight.
B29C 64/00 - Fabrication additive, c.-à-d. fabrication d’objets en trois dimensions [3D] par dépôt additif, agglomération additive ou stratification additive, p. ex. par impression en 3D, stéréolithographie ou frittage laser sélectif
B29C 64/40 - Structures de support des objets en 3D pendant la fabrication, lesdites structures devant être sacrifiées après réalisation de la fabrication
B29K 91/00 - Utilisation de cires comme matière de moulage
A three-dimensional printing system includes a vessel configured to contain a photocurable resin, a coating subsystem including a coater blade (42), a build plate coupled to a vertical movement mechanism, an imaging system configured to selectively image the photocurable resin at a build plane (22), and a controller. The controller is configured to operate the vertical movement mechanism to position an upper surface of the build plate at the build plane, translate a lower edge of the coater blade over the build plane along a scan direction, and concurrent with translating the lower edge of the coater blade, operate the imaging system to selectively image the build plane while maintaining an exclusion zone that includes a digital shadow (208) that translates with the coater blade, the digital shadow includes an area of the coater blade (42) and a fluidic wake area (204) that follows the coater blade.
B29C 64/135 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p. ex. par irradiation globale combinée avec un masque la source d’énergie étant concentrée, p. ex. lasers à balayage ou sources lumineuses focalisées
A 3D printing system includes a machine chassis, a vessel support, a gas pressure source (55), a build vessel, a light engine, and a lateral movement mechanism. The build vessel is supported by the vessel support and includes a transparent sheet (34). The vessel support includes a carriage (52) having a top surface. The carriage is configured to be positioned along a lateral X-axis under the transparent sheet. The carriage defines an optical path and a fluid channel (60) that at least partially surrounds the optical path. The gas pressure source is coupled to the fluid channel. Gas flowing from the gas pressure source and out of the fluid channel is configured to maintain a vertical spacing between the top surface of the carriage and the transparent sheet. The lateral movement mechanism translates and positions the carriage and light engine together along the lateral X-axis.
B29C 64/135 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p. ex. par irradiation globale combinée avec un masque la source d’énergie étant concentrée, p. ex. lasers à balayage ou sources lumineuses focalisées
B29C 64/232 - Moyens d’entraînement pour un mouvement le long de l'axe orthogonal au plan d’une couche
B29C 64/236 - Moyens d’entraînement pour un mouvement dans une direction dans le plan d’une couche
A 3D printing system includes a build vessel (8), a carriage (58), and a light engine. The build vessel includes a vessel base having a downward extending tension ring that tensions a transparent sheet (34). The transparent sheet laterally bounds a build plane that is defined over orthogonal lateral axis X and Y. The carriage includes a roller (52) that extends between two opposing sides of the tension ring. The roller exerts an upward force on the transparent sheet and the two opposing sides of the tension ring. The vertical constraint of the roller biased against the tension ring provides a location and improved planarity of a supported portion of the transparent sheet adjacent to the roller. The light engine light engine is configured to selectively apply radiation to a projected area of the build plane through the supported portion of the transparent sheet.
B29C 64/135 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p. ex. par irradiation globale combinée avec un masque la source d’énergie étant concentrée, p. ex. lasers à balayage ou sources lumineuses focalisées
B29C 64/232 - Moyens d’entraînement pour un mouvement le long de l'axe orthogonal au plan d’une couche
B29C 64/236 - Moyens d’entraînement pour un mouvement dans une direction dans le plan d’une couche
Disclosed are techniques for converting polymeric powder that has been discarded from a powder bed fusion process into a raw material suitable for an alternative form of additive manufacturing involving extruded deposition. As applied to polyamide powders, the disclosed methods improve suitability of the material for an extrusion process by adding another polyamide species in which the spacings between functional groups on the polymer chain do not follow a repeating pattern. In at least one preferred embodiment, a fibrous filler is also added to further improve dimensional compliance and stability in parts formed by depositing extruded beads of the inventive composition.
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p. ex. par frittage ou fusion laser sélectif
Disclosed are techniques for converting polymeric powder that has been discarded from a powder bed fusion process into a raw material suitable for an alternative form of additive manufacturing involving extruded deposition. As applied to polyamide powders, the disclosed methods improve suitability of the material for an extrusion process by adding another polyamide species in which the spacings between functional groups on the polymer chain do not follow a repeating pattern. In at least one preferred embodiment, a fibrous filler is also added to further improve dimensional compliance and stability in parts formed by depositing extruded beads of the inventive composition.
B29K 77/00 - Utilisation de polyamides, p. ex. polyesteramides, comme matière de moulage
B29K 105/00 - Présentation, forme ou état de la matière moulée
B29K 105/12 - Présentation, forme ou état de la matière moulée contenant des agents de renforcement, charges ou inserts de longueur réduite, p. ex. filaments coupés, fibres coupées ou crins
A three-dimensional, 3D, printing system includes a build vessel (6), a housing (14), a pressure compensator (38), a vertical movement mechanism (26) coupled to a build plate (22), a light engine (30), and a controller (40). The build vessel is configured to contain a fluid column of a photocurable liquid and further includes a flexible transparent sheet (12) configured to provide a lower bound for the photocurable liquid.The housing is configured to seal to an upper portion of the build vessel and to the vertical support. The pressure compensator is fluidically coupled to the housing and configured to generate a negative gauge pressure that offsets at least 70% of a fluid column pressure generated by the fluid column to reduce a deflection of the flexible transparent sheet under the fluid column. The controller is configured to operate the vertical movement mechanism and the light engine to fabricate the 3D article.
B29C 64/268 - Agencements pour irradiation par faisceaux laserAgencements pour irradiation par faisceaux d’électrons [FE]
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
Various embodiments of the present disclosure disclose manifolds, methods, and systems for measuring cell functions. In various embodiments, a first reservoir storing a first fluid and a second reservoir storing a second fluid may be fluidically connected via a fluid channel. Further, the first fluid and the second fluid may be such that an entropic gradient force causes the first fluid to flow towards a container that is located therebetween and contains cells therein. The cells release cell products into the first fluid flowing in the fluidic channel, which in turn flows into the second reservoir. The cell products can be sampled from the second reservoir and/or from the container to measure the function of the cells.
B29C 64/112 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des gouttelettes individuelles, p. ex. de buses de jet
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
C09D 11/037 - Encres d’imprimerie caractérisées par des particularités autres que la nature chimique du liant caractérisées par le pigment
C09D 11/101 - Encres spécialement adaptées aux procédés d’imprimerie mettant en œuvre la réticulation par énergie ondulatoire ou par radiation de particules, p. ex. réticulation par UV qui suit l’impression
C09D 11/107 - Encres d’imprimerie à base de résines artificielles contenant des composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone à partir d'acides non saturés ou de leurs dérivés
C09D 11/328 - Encres pour l'impression à jet d'encre caractérisées par des agents colorants caractérisées par des colorants
C09D 11/38 - Encres pour l'impression à jet d'encre caractérisées par des additifs non macromoléculaires autres que les solvants, les pigments ou les colorants
B29K 33/00 - Utilisation de polymères d'acides non saturés ou de leurs dérivés comme matière de moulage
B29K 105/00 - Présentation, forme ou état de la matière moulée
28.
Rotational Stereolithography for Arcuate 3D Articles
A three-dimensional (3D) printing system is configured to manufacture a plurality of arcuate 3D articles. The 3D printing system includes a build vessel, at least one build assembly, a light engine, and a controller. The at least one build assembly individually includes an axle, a build plate, and a motorized gear assembly. The motorized gear assembly is coupled to the axle and configured to rotationally position the axle about an axis of rotation. The light engine is located above the build vessel. The controller is configured to operate the motorized gear assembly to incrementally rotate the build plates about the axis of rotation between a plurality of stop positions. The controller is configured to operate the light engine at individual stop positions to selectively irradiate the photocurable liquid within a plurality of spatially separated build planes that are individually above one of the plurality of build plates.
B29C 64/241 - Moyens d’entraînement pour mouvement rotatif
B29C 64/106 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux
B29C 64/171 - Procédés de fabrication additive spécialement adaptés à la fabrication d'objets multiples en 3D
A three-dimensional (3D) printing system is configured to manufacture a plurality of arcuate 3D articles. The 3D printing system includes a build vessel, at least one build assembly, a light engine, and a controller. The at least one build assembly individually includes an axle, a build plate, and a motorized gear assembly. The motorized gear assembly is coupled to the axle and configured to rotationally position the axle about an axis of rotation. The light engine is located above the build vessel. The controller is configured to operate the motorized gear assembly to incrementally rotate the build plates about the axis of rotation between a plurality of stop positions. The controller is configured to operate the light engine at individual stop positions to selectively irradiate the photocurable liquid within a plurality of spatially separated build planes that are individually above one of the plurality of build plates.
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
A61C 13/07 - Garnitures ou rembourrages de ces prothèses
B29C 64/182 - Procédés de fabrication additive spécialement adaptés à la fabrication d'objets multiples en 3D en lots parallèles
B29C 64/241 - Moyens d’entraînement pour mouvement rotatif
A three-dimensional (3D) printing includes a rigid base, a build vessel supported on the rigid base, and an imaging module. The build vessel includes a lower frame structure, a transparent plate supported by the lower frame structure, a transparent sheet supported above the transparent plate, a vented housing supported by the lower frame structure, a desiccant disposed within the vented housing, and a vessel wall coupled to the lower frame structure. A fixed or variable fluidic region is defined between the transparent plate and the transparent sheet. The vented housing includes openings fluidically communicating with the fluidic region to allow the desiccant to deplete vapor from the fluidic region. The vessel wall and transparent sheet are configured to provide an upward facing reservoir. The imaging module is supported by the rigid base and configured to selectively image the photocurable liquid over a build plane above the transparent sheet.
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
B29C 64/255 - Enceintes pour le matériau de construction, p. ex. récipients pour poudre
A three-dimensional (3D) printing includes a rigid base (10), a build vessel (18) supported on the rigid base, and an imaging module. The build vessel (18) includes a lower frame structure (24), a transparent plate (32) supported by the lower frame structure (24), a transparent sheet (30) supported above the transparent plate (32), a vented housing (60) supported by the lower frame structure, a desiccant disposed within the vented housing, and a vessel wall (28) coupled to the lower frame structure. A fixed or variable fluidic region is defined between the transparent plate and the transparent sheet. The vented housing includes openings fluidically communicating with the fluidic region to allow the desiccant to deplete vapor from the fluidic region. The vessel wall and transparent sheet are configured to provide an upward facing reservoir. The imaging module (52) is supported by the rigid base and configured to selectively image the photocurable liquid over a build plane above the transparent sheet.
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
B29C 64/255 - Enceintes pour le matériau de construction, p. ex. récipients pour poudre
A three-dimensional (3D) printing system includes a build vessel, a build plate, a vertical movement mechanism, a lower light engine, an upper light engine, and a controller. The build vessel is configured to contain a column of photocurable liquid above a transparent sheet. The vertical movement mechanism is configured to vertically position the build plate. The controller is configured to operate the vertical movement mechanism, the lower light engine, and the upper light engine to fabricate: (a) a lower 3D article upon a lower surface of the build platform by selective solidification of the photocurable liquid at the lower build plane using the lower light engine, and (b) an upper 3D article upon an upper surface of the build platform by selective solidification of the photocurable liquid at the upper build plane using the upper light engine.
B29C 64/129 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p. ex. par irradiation globale combinée avec un masque
B29C 64/135 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p. ex. par irradiation globale combinée avec un masque la source d’énergie étant concentrée, p. ex. lasers à balayage ou sources lumineuses focalisées
B29C 64/182 - Procédés de fabrication additive spécialement adaptés à la fabrication d'objets multiples en 3D en lots parallèles
B29C 64/268 - Agencements pour irradiation par faisceaux laserAgencements pour irradiation par faisceaux d’électrons [FE]
B29C 64/277 - Agencements pour irradiation utilisant des moyens de rayonnement multiples, p. ex. des micro-miroirs ou des diodes électroluminescentes multiples [LED]
Various embodiments of the present disclosure disclose manifolds, methods, and systems for measuring cell functions. In various embodiments, a first reservoir storing a first fluid and a second reservoir storing a second fluid may be fluidically connected via a fluid channel. Further, the first fluid and the second fluid may be such that an entropic gradient force causes the first fluid to flow towards a container that is located there between and contains cells therein. The cells release cell products into the first fluid flowing in the fluidic channel, which in turn flows into the second reservoir. The cell products can be sampled from the second reservoir and/or from the container to measure the function of the cells.
B01L 3/00 - Récipients ou ustensiles pour laboratoires, p. ex. verrerie de laboratoireCompte-gouttes
C12M 1/12 - Appareillage pour l'enzymologie ou la microbiologie avec des moyens de stérilisation, filtration ou dialyse
C12M 1/34 - Mesure ou test par des moyens de mesure ou de détection des conditions du milieu, p. ex. par des compteurs de colonies
C12M 3/06 - Appareillage pour la culture de tissus, de cellules humaines, animales ou végétales, ou de virus avec des moyens de filtration, d'ultrafiltration, d'osmose inverse ou de dialyse
build materials for 3D printing applications are described herein which, in some embodiments, comprise monomeric species operable for producing articles with high Tg and/or high heat deflection temperature while maintaining shelf stability. In one aspect, a polymerizable liquid comprises at least 20 weight percent isocyanurate polyacrylate; a photoinitiator component; and a crystallization inhibitor component comprising monomeric curable material, oligomeric curable material or mixtures thereof, wherein the polymerizable liquid does not exhibit crystallization over a period of 28 days at a storage temperature of 5-10° C.
C08F 20/36 - Esters contenant de l'azote contenant de l'oxygène en plus de l'oxygène de la fonction carboxyle
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
C09D 11/101 - Encres spécialement adaptées aux procédés d’imprimerie mettant en œuvre la réticulation par énergie ondulatoire ou par radiation de particules, p. ex. réticulation par UV qui suit l’impression
35.
Stereolithography with Dual and Parallel Build Planes
A three-dimensional (3D) printing system includes a build vessel, a build plate, a vertical movement mechanism, a lower light engine, an upper light engine, and a controller. The build vessel is configured to contain a column of photocurable liquid above a transparent sheet. The vertical movement mechanism is configured to vertically position the build plate. The controller is configured to operate the vertical movement mechanism, the lower light engine, and the upper light engine to fabricate: (a) a lower 3D article upon a lower surface of the build platform by selective solidification of the photocurable liquid at the lower build plane using the lower light engine, and (b) an upper 3D article upon an upper surface of the build platform by selective solidification of the photocurable liquid at the upper build plane using the upper light engine.
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
B22F 12/33 - Plate-formes ou substrats de translation dans le plan de dépôt
B33Y 30/00 - Appareils pour la fabrication additiveLeurs parties constitutives ou accessoires à cet effet
36.
ADDITIVES FOR BUILD MATERIALS AND ASSOCIATED PRINTED 3D ARTICLES
Additives for three-dimensional build materials or inks are described herein which, in some embodiments, can impart one or more structural enhancements to articles printed from the build materials. In one aspect, a polymerizable liquid comprises at least one additive including a plurality of cyclopolymerizable functionalities separated by an aliphatic linker or alkylene oxide linker.
C09D 11/101 - Encres spécialement adaptées aux procédés d’imprimerie mettant en œuvre la réticulation par énergie ondulatoire ou par radiation de particules, p. ex. réticulation par UV qui suit l’impression
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
37.
METHODS OF CALIBRATION OF A STEREOLITHOGRAPHY SYSTEM
Provided herein is a system for producing a product. The system generally comprises a large-area micro-stereolithography system, an optical imaging system, and a controller in communication with the large-area micro-stereolithography system and the optical imaging system. The large-area micro-stereolithography system is capable of generating the product by optically polymerizing successive layers of a curable resin at a build plane. The controller is capable of analyzing a focus level of the reference target based on the captured image; and based on the analyzing, adjusting a focus property of the projected image beam of the stereolithography system.
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
Compositions for additive manufacturing applications are described herein which, in some embodiments, provide improved printing properties. In some embodiments, a composition comprises a primary build material in an amount of 10-99.9 wt. % and an asphaltite additive in an amount of up to 6 wt. %, based on the total weight of the composition. In some cases, the asphaltite additive comprises a solid hydrocarbon-based mineral or a solid organic material formed primarily from hydrocarbons and found in an oil-bearing sedimentary basin, such as gilsonite.
A three-dimensional (3D) printing system is configured to print a 3D article in a layer-by-layer manner and includes a vertical beam, an elevator, and a build platform. The elevator is configured for vertical translation along the vertical beam and includes an upper support and a lower support. The lower support includes at least one elevator actuator extending upward from an upper side. The upper support has a lower side including a datum surface in engagement with the actuator. The elevator actuator is configured to modulate a position of the upper side of the upper support. The build platform includes a build plate coupled below a support plate. The build plate has a lower side for formation of the 3D article. The support plate has a lower side that engages the upper side of the upper support of the elevator to support the build platform.
B29C 64/232 - Moyens d’entraînement pour un mouvement le long de l'axe orthogonal au plan d’une couche
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
B29C 64/241 - Moyens d’entraînement pour mouvement rotatif
A method of manufacturing a 3D article includes operating a 3D printing system including an elevator coupled to a vertical movement mechanism, and a distance sensor. The elevator includes an elevator actuator. The vertical movement mechanism is coupled to the elevator. The build platform includes a build plate having a lower surface. The method includes loading the build platform onto the elevator, operating the vertical movement mechanism to lower the lower surface of the build platform into a measurement range with the distance sensor, scanning the distance sensor along a lateral axis, concurrent with scanning the distance sensor, receiving a signal from the distance sensor indicative of a plurality of vertical locations along the lateral axis of the lower surface of the build platform, and operating the elevator actuator to adjust a height of the lower surface of the build platform.
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/129 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p. ex. par irradiation globale combinée avec un masque
B29C 64/232 - Moyens d’entraînement pour un mouvement le long de l'axe orthogonal au plan d’une couche
B29C 64/241 - Moyens d’entraînement pour mouvement rotatif
A three-dimensional (3D) printing system is configured to print a 3D article in a layer- by-layer manner and includes a vertical beam, an elevator, and a build platform. The elevator is configured for vertical translation along the vertical beam and includes an upper support and a lower support. The lower support includes at least one elevator actuator extending upward from an upper side. The upper support has a lower side including a datum surface in engagement with the actuator. The elevator actuator is configured to modulate a position of the upper side of the upper support. The build platform includes a build plate coupled below a support plate. The build plate has a lower side for formation of the 3D article. The support plate has a lower side that engages the upper side of the upper support of the elevator to support the build platform.
A method of manufacturing a 3D article includes providing a 3D printing system including a rigid base with a vertical beam, an elevator for translation along the vertical beam, the elevator containing an elevator actuator and a force sensor, a vertical movement mechanism, a build platform including a build plate having a lower surface, a build vessel containing photocurable resin, and a controller. The method includes loading the build platform onto the elevator, operating the vertical movement mechanism to translate the lower surface of the build plate through the resin, the photocurable resin exerting a torque upon the elevator, receiving a signal from the force sensor, operating the controller to compute a force-induced angular discrepancy between the lower surface of the build plate and the horizontal plane, and operating the elevator actuator according to the angular discrepancy to level the lower surface of the build plate.
B29C 64/232 - Moyens d’entraînement pour un mouvement le long de l'axe orthogonal au plan d’une couche
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
B29C 64/236 - Moyens d’entraînement pour un mouvement dans une direction dans le plan d’une couche
B29C 64/241 - Moyens d’entraînement pour mouvement rotatif
Compositions for additive manufacturing applications are described herein which, in some embodiments, provide improved printing properties. In some embodiments, a composition comprises a primary build material in an amount of 10-99.9 wt. % and an asphaltite additive in an amount of up to 6 wt. %, based on the total weight of the composition. In some cases, the asphaltite additive comprises a solid hydrocarbon-based mineral or a solid organic material formed primarily from hydrocarbons and found in an oil-bearing sedimentary basin, such as gilsonite.
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p. ex. par frittage ou fusion laser sélectif
B29K 21/00 - Utilisation de caoutchouc non spécifié ou élastomères non spécifiés comme matière de moulage
B29K 77/00 - Utilisation de polyamides, p. ex. polyesteramides, comme matière de moulage
B29K 105/00 - Présentation, forme ou état de la matière moulée
C09D 177/00 - Compositions de revêtement à base de polyamides obtenus par des réactions créant une liaison amide carboxylique dans la chaîne principaleCompositions de revêtement à base de dérivés de tels polymères
A method of manufacturing a 3D article includes operating a 3D printing system including an elevator (14) coupled to a vertical movement mechanism, and a distance sensor (58). The elevator includes an elevator actuator. The vertical movement mechanism is coupled to the elevator. The build platform includes a build plate having a lower surface. The method includes loading the build platform onto the elevator, operating the vertical movement mechanism to lower the lower surface of the build platform into a measurement range with the distance sensor, scanning the distance sensor along a lateral axis, concurrent with scanning the distance sensor, receiving a signal from the distance sensor indicative of a plurality of vertical locations along the lateral axis of the lower surface of the build platform, and operating the elevator actuator to adjust a height of the lower surface of the build platform.
B29C 64/135 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p. ex. par irradiation globale combinée avec un masque la source d’énergie étant concentrée, p. ex. lasers à balayage ou sources lumineuses focalisées
B29C 64/232 - Moyens d’entraînement pour un mouvement le long de l'axe orthogonal au plan d’une couche
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
A method of manufacturing a 3D article includes providing a 3D printing system (2) including a rigid base (10) with a vertical beam (12), an elevator (14) for translation along the vertical beam, the elevator containing an elevator actuator (62) and a force sensor (86), a vertical movement mechanism (16), a build platform (36) including a build plate (38) having a lower surface, a build vessel (18) containing photocurable resin, and a controller (88). The method includes loading the build platform (36) onto the elevator (14), operating the vertical movement mechanism to translate the lower surface of the build plate through the resin, the photocurable resin exerting a torque upon the elevator, receiving a signal from the force sensor, operating the controller to compute a force-induced angular discrepancy between the lower surface of the build plate and the horizontal plane, and operating the elevator actuator according to the angular discrepancy to level the lower surface of the build plate.
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
B29C 64/232 - Moyens d’entraînement pour un mouvement le long de l'axe orthogonal au plan d’une couche
Methods and processes are provided by which inhibited-crystallization polymers may be employed as feedstock materials in thermoplastic extrusion-type additive manufacturing systems. Counteracting the tendency of such polymers to uncontrolledly settle into an amorphous state upon cooling under typically used conditions, techniques are disclosed for controlling process temperatures, exposure times and feed rates to produce parts with uniform crystallinity, high mechanical strength and efficient throughput.
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
B29C 64/188 - Procédés de fabrication additive impliquant des opérations supplémentaires effectuées sur les couches ajoutées, p. ex. lissage, meulage ou contrôle d’épaisseur
Methods and processes are provided by which inhibited-crystallization polymers may be employed as feedstock materials in thermoplastic extrusion-type additive manufacturing systems. Counteracting the tendency of such polymers to uncontrolledly settle into an amorphous state upon cooling under typically used conditions, techniques are disclosed for controlling process temperatures, exposure times and feed rates to produce parts with uniform crystallinity, high mechanical strength and efficient throughput.
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
In one aspect, inks for use with a three-dimensional (3D) printing system are described herein. In some embodiments, a composite ink described herein comprises a carrier ink comprising a curable material and a solid powder filler dispersed in the carrier ink. In some cases, the composite ink, in an uncured state, has a highly accelerated life testing (HALT) score of at least 2 when tested at 65° C. for at least 14 days. Additionally, in some embodiments, the composite ink, in an uncured state, has an average loss factor tan δ of less than or equal to 3 or less than or equal to 2 over an angular frequency range of 0.5 to 5 rad/s.
C09D 11/30 - Encres pour l'impression à jet d'encre
B33Y 40/20 - Posttraitement, p. ex. durcissement, revêtement ou polissage
B33Y 70/10 - Composites de différents types de matériaux, p. ex. mélanges de céramiques et de polymères ou mélanges de métaux et de biomatériaux
C09D 4/06 - Compositions de revêtement, p. ex. peintures, vernis ou vernis-laques, à base de composés non macromoléculaires organiques ayant au moins une liaison non saturée carbone-carbone polymérisable en combinaison avec un composé macromoléculaire autre qu'un polymère non saturé des groupes
In one aspect, inks for use with a three-dimensional (3D) printing system are described herein. In some embodiments, a composite ink described herein comprises a carrier ink comprising a curable material and a solid powder filler dispersed in the carrier ink. In some cases, the composite ink, in an uncured state, has a highly accelerated life testing (HALT) score of at least 2 when tested at 65°C for at least 14 days. Additionally, in some embodiments, the composite ink, in an uncured state, has an average loss factor tan δ of less than or equal to 3 or less than or equal to 2 over an angular frequency range of 0.5 to 5 rad/s.
C09D 11/101 - Encres spécialement adaptées aux procédés d’imprimerie mettant en œuvre la réticulation par énergie ondulatoire ou par radiation de particules, p. ex. réticulation par UV qui suit l’impression
Polymerizable liquids for 3D printing applications are described herein which, in some embodiments, impart flame resistant and/or flame retardant properties to articles printed from the build materials. The polymerizable liquids may also impart desirable mechanical properties to the articles. In some embodiments, a polymerizable liquid comprises a curable isocyanurate component in an amount of at least 20 wt. %, based on total weight of the polymerizable liquid, and an organophosphate component comprises one or more organophosphate compounds. In some embodiments, the polymerizable liquid further comprises an acrylate component.
B29C 64/106 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux
6 each represent one to four optional ring substituents, each one of the one to four ring substituents independently selected from the group consisting of alkyl, heteroalkyl, haloalkyl, halo, hydroxyl, alkoxy, amine, amide, and ether, and wherein n is an integer from 1 to 7.
B29C 64/106 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux
Additives for three-dimensional build materials or inks are described herein which, in some embodiments, can impart one or more structural enhancements to articles printed from the build materials. In one aspect, a polymerizable liquid comprises at least one additive including a plurality of cyclopolymerizable functionalities separated by an aliphatic linker or alkylene oxide linker.
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
B29C 64/129 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p. ex. par irradiation globale combinée avec un masque
C08F 2/48 - Polymérisation amorcée par énergie ondulatoire ou par rayonnement corpusculaire par la lumière ultraviolette ou visible
C08F 220/36 - Esters contenant de l'azote contenant de l'oxygène en plus de l'oxygène de la fonction carboxyle
C08F 224/00 - Copolymères de composés contenant un ou plusieurs radicaux aliphatiques non saturés, chaque radical ne contenant qu'une seule liaison double carbone-carbone et l'un au moins étant terminé par un hétérocycle contenant de l'oxygène
C09D 11/101 - Encres spécialement adaptées aux procédés d’imprimerie mettant en œuvre la réticulation par énergie ondulatoire ou par radiation de particules, p. ex. réticulation par UV qui suit l’impression
C09D 11/107 - Encres d’imprimerie à base de résines artificielles contenant des composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone à partir d'acides non saturés ou de leurs dérivés
Curable compounds, hydrogels, build materials, and methods of 3D printing are described herein. In some embodiments, a build material for 3D printing described herein comprises one or more compounds having the structure(s) of Formula (I) and/or Formula (II) herein. Such a build material may also comprise an additional acrylate component and water.
A61L 27/18 - Matériaux macromoléculaires obtenus par des réactions autres que celles faisant intervenir uniquement des liaisons non saturées carbone-carbone
A61L 27/26 - Mélanges de matériaux macromoléculaires
B33Y 80/00 - Produits obtenus par fabrication additive
Compositions for additive manufacturing applications are described herein which, in some embodiments, impart flame resistant and/or flame retardant properties to articles printed or formed from the compositions. The compositions may also impart desirable mechanical properties to the articles. In some embodiments, a composition comprises a sinterable powder or a thermoplastic polymer in an amount of 10-99 wt. %, based on the total weight of the composition, and an intumescent additive in an amount of up to 30 wt. %, based on the total weight of the composition. The intumescent additive comprises a phosphinate component and at least one of (a) a heptazine or melamine-derived component, and (b) a proton donor component.
Compositions for additive manufacturing applications are described herein which, in some embodiments, impart flame resistant and/or flame retardant properties to articles printed or formed from the compositions. The compositions may also impart desirable mechanical properties to the articles. In some embodiments, a composition comprises a sinterable powder or a thermoplastic polymer in an amount of 10-99 wt. %, based on the total weight of the composition, and an oxygen-deprivation additive in an amount of up to 25 wt. %, up to 15 wt. %, or up to 10 wt. % based on the total weight of the composition. The oxygen-deprivation additive comprises at least one of (a) an organophosphorus component, (b) a heptazine or melamine-derived component, and (c) a polymeric organobromine component.
Compositions for additive manufacturing applications are described herein which, in some embodiments, impart flame resistant and/or flame retardant properties to articles printed or formed from the compositions. The compositions may also impart desirable mechanical properties to the articles. In some embodiments, a composition comprises a sinterable powder or a thermoplastic polymer in an amount of 10-99 wt. %, based on the total weight of the composition, and an intumescent additive in an amount of up to 30 wt. %, based on the total weight of the composition. The intumescent additive comprises a phosphinate component and at least one of (a) a heptazine or melamine-derived component, and (b) a proton donor component.
C08K 5/3495 - Cycles à six chaînons condensés avec des carbocycles
C08K 5/5313 - Composés phosphiniques, p. ex. R2=P(:O)OR'
C08L 77/04 - Polyamides dérivés des acides alpha-aminocarboxyliques
B29C 64/00 - Fabrication additive, c.-à-d. fabrication d’objets en trois dimensions [3D] par dépôt additif, agglomération additive ou stratification additive, p. ex. par impression en 3D, stéréolithographie ou frittage laser sélectif
Compositions for additive manufacturing applications are described herein which, in some embodiments, impart flame resistant and/or flame retardant properties to articles printed or formed from the compositions. The compositions may also impart desirable mechanical properties to the articles. In some embodiments, a composition comprises a sinterable powder or a thermoplastic polymer in an amount of 10-99 wt. %, based on the total weight of the composition, and an expandable graphite component in an amount of up to 20 wt. %, based on the total weight of the composition. In some instances, the expandable graphite component is in its free form or encapsulated in material.
C08K 7/24 - Particules expansibles, poreuses ou creuses inorganiques
B29C 64/00 - Fabrication additive, c.-à-d. fabrication d’objets en trois dimensions [3D] par dépôt additif, agglomération additive ou stratification additive, p. ex. par impression en 3D, stéréolithographie ou frittage laser sélectif
Compositions for additive manufacturing applications are described herein which, in some embodiments, impart flame resistant and/or flame retardant properties to articles printed or formed from the compositions. The compositions may also impart desirable mechanical properties to the articles. In some embodiments, a composition comprises a sinterable powder or a thermoplastic polymer in an amount of 10-99 wt. %, based on the total weight of the composition, and an expandable graphite component in an amount of up to 20 wt. %, based on the total weight of the composition. In some instances, the expandable graphite component is in its free form or encapsulated in material.
Compositions for additive manufacturing applications are described herein which, in some embodiments, impart flame resistant and/or flame retardant properties to articles printed or formed from the compositions. The compositions may also impart desirable mechanical properties to the articles. In some embodiments, a composition comprises a sinterable powder or a thermoplastic polymer in an amount of 10-99 wt. %, based on the total weight of the composition, and an oxygen-deprivation additive in an amount of up to 25 wt. %, up to 1 5 wt. %, or up to 10 wt. % based on the total weight of the composition. The oxygen-deprivation additive comprises at least one of (a) an organophosphorus component, (b) a heptazine or melamine-derived component, and (c) a polymeric organobromine component.
C08K 3/013 - Charges, pigments ou agents de renforcement
C08L 77/02 - Polyamides dérivés des acides oméga-aminocarboxyliques ou de leurs lactames
B29C 64/00 - Fabrication additive, c.-à-d. fabrication d’objets en trois dimensions [3D] par dépôt additif, agglomération additive ou stratification additive, p. ex. par impression en 3D, stéréolithographie ou frittage laser sélectif
In one aspect, build materials for use with a three-dimensional (3D) printing system are described herein. In some embodiments, a build material described herein comprises an acrylate component, a photoinitiator component, a non-curable absorber component, and water. The photoinitiator component of the build material is operable to initiate curing of the acrylate component and/or other curable materials that may optionally be present when the photoinitiator is exposed to incident curing radiation having a Gaussian distribution of wavelengths and a peak wavelength λ. The build material has a penetration depth (Dp) and a critical energy (Ec) at the wavelength λ. In some embodiments, the Dp is greater than 200 μm and less than 300 μm, and the Ec is 3-12 mJ/cm2. In other embodiments, the Dp is greater than 10 μm and less than 50 μm, and the Ec is 5-40 mJ/cm2.
C09D 151/08 - Compositions de revêtement à base de polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions de revêtement à base de dérivés de tels polymères greffés sur des composés macromoléculaires obtenus autrement que par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
C09D 4/00 - Compositions de revêtement, p. ex. peintures, vernis ou vernis-laques, à base de composés non macromoléculaires organiques ayant au moins une liaison non saturée carbone-carbone polymérisable
C09D 11/03 - Encres d’imprimerie caractérisées par des particularités autres que la nature chimique du liant
C09D 11/101 - Encres spécialement adaptées aux procédés d’imprimerie mettant en œuvre la réticulation par énergie ondulatoire ou par radiation de particules, p. ex. réticulation par UV qui suit l’impression
62.
3D printing system with waste collection subsystem
A three-dimensional (3D) printing system includes a resin vessel, a fabrication subsystem, a waste collection subsystem, and a controller. The resin vessel is configured to contain photocurable resin. The fabrication subsystem is configured to form the 3D article with layer-by-layer selective curing of the photocurable resin. The fabrication subsystem includes a build plate, a build plate support structure, and a vertical movement mechanism. The waste collection subsystem is attached to the build plate support structure and configured to capture partially polymerized resin as the build plate support structure moves in an upward direction. The controller is configured to (a) operate the vertical movement mechanism to translate the build plate support structure to a lower position and (b) operate the vertical movement mechanism to raise the waste collection subsystem up through the resin and to a position at which partially polymerized resin can be unloaded from the waste collection subsystem.
A manufacturing system includes an additive manufacturing (AM) system and a fluid supported molding system. The AM system is configured to produce a plastic mold. The fluid supported molding system includes a pressure vessel surrounding a pressure chamber. The pressure vessel is configured to contain a fluid surrounding the mold. The fluid supported molding system also includes a mold material injector configured to inject a mold material into the mold. During the injection of mold material into the mold, the fluid surrounding the mold is configured to resist defection of an outer surface of the mold.
Disclosed is a bioextruder assembly capable of “retro-fit” an existing three-dimensional (3D) printer such that it is capable of printing biomaterials. The bioextruder assembly may be modular, self-contained, and configured as “plug-and-play” unit. In some embodiments, the bioextruder assembly may be configured for use in zero-gravity environments such as space and configured to engage with existing 3D printers in space. In some embodiments the bioextruder assembly includes an extruder configured to extrude bio-materials stored in a syringe that is coupled to the extruder, and a converter. The converter may include an electromechanical coupling component that couples the converter to a three-dimensional printer system, and a motor configured to actuate the extrusion of bio-materials stored in the syringe based on signals received from the three-dimensional printing system via the electromechanical coupling component. In some embodiments, the converter may be configured to reversibly attach to the extruder via an attachment element.
B29C 64/106 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux
Polymerizable liquids are described herein which, in some embodiments, can produce 3D printed articles of high resolution and desirable mechanical properties. In one aspect, a polymerizable liquid comprises an acrylate component, and a composite resin comprising a curable carrier and polymeric particles dispersed in the curable carrier. The polymerizable liquid also comprises a photoinitiator component.
C09D 4/06 - Compositions de revêtement, p. ex. peintures, vernis ou vernis-laques, à base de composés non macromoléculaires organiques ayant au moins une liaison non saturée carbone-carbone polymérisable en combinaison avec un composé macromoléculaire autre qu'un polymère non saturé des groupes
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
A three-dimensional (3D) printing system includes a vessel, a coating subsystem, a calibration block, and a controller. The vessel is configured to contain a photocurable resin having a resin upper surface. The coating subsystem includes a coater module including a coater blade, a lateral movement mechanism coupled to the coater module, a sensor mounted to the coater module, and a vertical actuator system. The calibration block has a calibration surface. The controller is configured to operate the lateral movement mechanism to position the coater blade over the calibration block, operate the vertical actuator system to lower the coater blade into engagement with the calibration surface of the calibration block, operate the sensor to measure a distance to the calibration block, and store the distance as indicative of a vertical position of a lower edge of the coater blade.
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
An additive manufacturing system for producing a three-dimensional article includes a print engine, a post-fabrication powder removal apparatus, a transport mechanism, and a controller. The post fabrication removal apparatus includes a rotary frame defining an internal receptacle cavity, a plurality of clamps coupled to a corresponding plurality of actuators, a clamping plate coupled to a lift apparatus, and an agitation device mounted to the clamping plate. The controller is configured to perform the following steps: (1) Operate the transport mechanism to transport the build box to the internal receptacle cavity. (2) Operate the plurality of actuators to engage the build box with the plurality of clamps to secure the build box to the rotary frame. (3) Operate the rotary frame to rotate the build box until unfused powder begins to exit the build box. (4) Operate the agitation device to facilitate pouring of the unfused powder from the build box.
Polymerizable liquids are described herein which, in some embodiments, can produce 3D printed articles of high resolution and desirable mechanical properties. In one aspect, a polymerizable liquid comprises an acrylate component, a polymeric additive, and a monomeric curing agent, wherein the acrylate component and monomeric curing agent are copolymerizable upon exposure to light. In being copolymerizable, the acrylate component and monomeric curing agent can form a copolymer. As described father herein, the monomeric curing agent can enable further reaction of the copolymer with one or more crosslinking species to link the copolymer with one more polymeric networks.
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
B29C 64/129 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p. ex. par irradiation globale combinée avec un masque
C09D 11/101 - Encres spécialement adaptées aux procédés d’imprimerie mettant en œuvre la réticulation par énergie ondulatoire ou par radiation de particules, p. ex. réticulation par UV qui suit l’impression
C09D 11/102 - Encres d’imprimerie à base de résines artificielles contenant des composés macromoléculaires obtenus par des réactions autres que celles faisant intervenir uniquement des liaisons non saturées carbone-carbone
C09D 11/107 - Encres d’imprimerie à base de résines artificielles contenant des composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone à partir d'acides non saturés ou de leurs dérivés
C08G 73/06 - Polycondensats possédant des hétérocycles contenant de l'azote dans la chaîne principale de la macromoléculePolyhydrazidesPolyamide-acides ou précurseurs similaires de polyimides
C08F 283/00 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères prévus par la sous-classe
69.
VARIABLE VOXEL SIZE IN NON-CONTINUOUS DEPOSITION PROCESS
In the context of additive manufacturing processes wherein objects are built by layered accumulations of discrete instantaneous deposits of feedstock material at specific locations according to a three-dimensional digital data model, methods are provided for improving at least one build quality attribute by adjusting a size of one or more voxel spaces for receiving discrete deposits. According to various embodiments, the quality attribute pertains to reducing excess material used in the build process or to thermal behavior of deposited materials. According to various embodiments, the size of a voxel space may be adjusting by scaling and by subdividing into a cluster of smaller spaces that warrant smaller deposits.
In the context of additive manufacturing processes wherein objects are built by layered accumulations of discrete instantaneous deposits of feedstock material at specific locations according to a first three-dimensional digital data model, processes and systems are provided for first forming an oversized blank part that roughly conforms to the first model and is subsequently machined to final dimensions specified by the first model. Various embodiments provide for generating a second model representing the expected shape of the blank part, as formed by a discrete deposition process, and facilitating calculation of specific toolpaths by which material removal tools may render the final shape.
In the context of additive manufacturing processes wherein objects are built by layered accumulations of discrete instantaneous deposits of feedstock material at specific locations according to a three-dimensional digital data model, methods and systems are provided for selecting an advantageous alignment between an array of fillable voxel spaces and a model layer slice. In accordance with some embodiments, variable alignment achieves an overall reduction in the amount of excess material formed by discrete depositions of material and extending beyond the contours of the object.
Systems and processes for additive manufacturing are set forth for constructing an object by making successive discrete deposits of unitary masses of a feedstock materials at specific locations as determined by a digital data model for the object. In accordance with some embodiments, the deposits are non-continuous and performed in a sequence such that consecutively ordered deposit actions occur at deposit locations that are not physically adjacent, enabling control of thermal behaviors as a build progresses. In accordance with some embodiments, the sequencing of discrete depositing actions may be agilely rearranged to change temperatures and temperature gradients exhibited by deposited materials.
B29C 64/112 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des gouttelettes individuelles, p. ex. de buses de jet
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
C09D 11/037 - Encres d’imprimerie caractérisées par des particularités autres que la nature chimique du liant caractérisées par le pigment
C09D 11/101 - Encres spécialement adaptées aux procédés d’imprimerie mettant en œuvre la réticulation par énergie ondulatoire ou par radiation de particules, p. ex. réticulation par UV qui suit l’impression
C09D 11/107 - Encres d’imprimerie à base de résines artificielles contenant des composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone à partir d'acides non saturés ou de leurs dérivés
C09D 11/328 - Encres pour l'impression à jet d'encre caractérisées par des agents colorants caractérisées par des colorants
C09D 11/38 - Encres pour l'impression à jet d'encre caractérisées par des additifs non macromoléculaires autres que les solvants, les pigments ou les colorants
B29K 33/00 - Utilisation de polymères d'acides non saturés ou de leurs dérivés comme matière de moulage
B29K 105/00 - Présentation, forme ou état de la matière moulée
74.
High Productivity System for Printing Precision Articles
A three-dimensional printing system includes a resin vessel, a support tray, a motorized carriage, a light engine, and a controller. The resin vessel has a lower side with a transparent sheet which provides a lower bound for photocurable resin contained within the vessel. The support tray has a lower face for supporting an object being fabricated. The motorized carriage is for supporting and vertically positioning the support tray. The light engine is for projecting radiation up through the transparent sheet to a build plane. The controller operates the motorized carriage and the light engine to fabricate the object. The object includes a vertical arrangement of dental arches suspended from the lower face and a plurality couplings that connect pairs of the dental arches.
B29C 64/129 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p. ex. par irradiation globale combinée avec un masque
Additives for three-dimensional build materials or inks are described herein which, in some embodiments, can impart one or more structural enhancements to articles printed from the build materials. In one aspect, a polymerizable liquid comprises at least one additive including a plurality of cyclopolymerizable functionalities separated by an aliphatic linker or alkylene oxide linker.
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
C08L 75/14 - Polyuréthanes comportant des liaisons non saturées carbone-carbone
Processes and material compositions are disclosed for applying polymer additive manufacturing to producing press dies, such as for sheet metal forming. As disclosed in various embodiments, material compositions comprise a thermoplastic, a first filler having low aspect ratio particles and a second filler having high aspect ratio. In at least one embodiment, composites according to the disclosed teachings have a compressive modulus greater than 3500 MPa and a compressive strength greater than 70 MPa, such that the composites have sufficient mechanical properties for press tooling and are amenable to extrusion-type additive manufacturing processes. In at least one embodiment, the use of the disclosed composites with additive manufacturing enables reduced overall mass of tooling by inclusion of voids inside the die.
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
B29C 70/02 - Façonnage de matières composites, c.-à-d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p. ex. des inserts comprenant des combinaisons de renforcements et de matières de remplissage dans une matrice, formant une ou plusieurs couches, avec ou sans couches non renforcées ou non remplies
Processes and material compositions are disclosed for applying polymer additive manufacturing to producing press dies, such as for sheet metal forming. As disclosed in various embodiments, material compositions comprise a thermoplastic, a first filler having low aspect ratio particles and a second filler having high aspect ratio. In at least one embodiment, composites according to the disclosed teachings have a compressive modulus greater than 3500 MPa and a compressive strength greater than 70 MPa, such that the composites have sufficient mechanical properties for press tooling and are amenable to extrusion-type additive manufacturing processes. In at least one embodiment, the use of the disclosed composites with additive manufacturing enables reduced overall mass of tooling by inclusion of voids inside the die.
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
g and/or high heat deflection temperature while maintaining shelf stability. In one aspect, a polymerizable liquid comprises at least 20 weight percent isocyanurate polyacrylate; a photoinitiator component; and a crystallization inhibitor component comprising monomeric curable material, oligomeric curable material or mixtures thereof, wherein the polymerizable liquid does not exhibit crystallization over a period of 28 days at a storage temperature of 5-10° C.
C08F 20/36 - Esters contenant de l'azote contenant de l'oxygène en plus de l'oxygène de la fonction carboxyle
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
C09D 11/101 - Encres spécialement adaptées aux procédés d’imprimerie mettant en œuvre la réticulation par énergie ondulatoire ou par radiation de particules, p. ex. réticulation par UV qui suit l’impression
79.
METHOD FOR CONTROLLING PLURALITY OF ROBOTIC DEPOSITORS IN A NON-CONTINUOUS DEPOSITION PROCESS
In the context of additive manufacturing processes wherein an object is built by layered accumulations of discrete instantaneous deposits of feedstock material at specific locations according to a three-dimensional digital data model, systems and methods are taught for operating multiple independently-moving depositing devices in a shared build space to build the object. In some embodiments, depositing components perform discrete material depositing actions according to sequential lists of deposit location instructions which are dynamically sortable, enabling a control methodology to alleviate collision risks among depositing components and to improve thermal conditions of a workpiece during construction. Further embodiments provide for dynamic apportionment of discrete deposition actions among the available depositing devices for load balancing and fault tolerance.
B23K 9/12 - Alimentation automatique en électrodes ou en pièces ou déplacement automatique des électrodes ou des pièces pour le soudage ou le découpage à l'arc en lignes continues ou par points
B33Y 40/20 - Posttraitement, p. ex. durcissement, revêtement ou polissage
80.
SCALABLE AND FAST THREE DIMENSIONAL PRINTING SYSTEM
A three dimensional printing system includes a light engine having a spatial light modulator for curing individual layers of a photocure resin to form a three dimensional article of manufacture. The light engine is configured to: (1) receive a slice image that defines an array of energy values for curing a layer, (2) process the slice image to define an image frame compatible with the spatial light modulator, (3) receive an on signal, (4) activate the first light source in response to the on signal; (5) repeatedly send the first defined image frame to the first spatial light modulator during a defined cure time for the single layer of resin; (6) receive an off signal; (7) deactivate the first light source in response to the off signal; and (8) repeat steps (1) - (7) until the three dimensional article of manufacture is formed.
B29C 64/386 - Acquisition ou traitement de données pour la fabrication additive
B33Y 30/00 - Appareils pour la fabrication additiveLeurs parties constitutives ou accessoires à cet effet
B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B33Y 50/00 - Acquisition ou traitement de données pour la fabrication additive
B29C 64/277 - Agencements pour irradiation utilisant des moyens de rayonnement multiples, p. ex. des micro-miroirs ou des diodes électroluminescentes multiples [LED]
B29C 64/135 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p. ex. par irradiation globale combinée avec un masque la source d’énergie étant concentrée, p. ex. lasers à balayage ou sources lumineuses focalisées
81.
Three-dimensional printing system with improved powder coating uniformity
A three-dimensional printing system includes a build platform, a movement mechanism, a coating module, a consolidation module, and a controller. The controller is configured to (1) operate the movement mechanism and the coating module to deposit a new powder layer over an upper surface of the build platform or powder, (2) operate the consolidation module to selectively consolidate the new powder layer, and (3) repeat (1) and (2) until a three-dimensional article is fabricated from a plurality of layers. Step (1) includes, at least one of the plurality of layers (a) operate the movement mechanism and the coating module to deposit a first sublayer of powder having a thickness T1 over the upper surface, and (b) operate the movement mechanism and the coating module to deposit a second sublayer of powder having at thickness T2 over the first sublayer of powder. T2 is less than 20% of T1.
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p. ex. par frittage ou fusion laser sélectif
A three-dimensional (3D) printing system includes a print engine chassis, a build box, a vertical movement mechanism, a powder dispensing module, a consolidation module, and a controller. The print engine chassis defines a build chamber configured to receive and support the build box. The build box includes a build plate upon which the 3D article is fabricated. The vertical movement mechanism includes a plurality of actuators configured to collectively provide precise positioning of the build plate. The controller is configured to (1) operate the vertical movement mechanism including operating the plurality of actuators to position an upper surface of the 3D article generally proximate and parallel to a build plane, (2) operate the powder dispensing module to dispense a new layer of powder over the upper surface, and (3) operate the consolidation module to selectively consolidate the new layer of powder.
B22F 12/00 - Appareils ou dispositifs spécialement adaptés à la fabrication additiveMoyens auxiliaires pour la fabrication additiveCombinaisons d’appareils ou de dispositifs pour la fabrication additive avec d’autres appareils ou dispositifs de traitement ou de fabrication
B33Y 30/00 - Appareils pour la fabrication additiveLeurs parties constitutives ou accessoires à cet effet
09 - Appareils et instruments scientifiques et électriques
10 - Appareils et instruments médicaux
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Bioreactor for cell culturing; cell culture apparatus for
laboratory use, namely, cell culture instrument using tissue
cultures in a microfluidic device; laboratory apparatus,
namely, pumping systems, bioreactors, and cell assembly
apparatus for laboratory use for fabrication of three
dimensional (3D) engineered living tissues. Cell culture apparatus for medical use, namely, cell culture
instrument using tissue cultures in a microfluidic device. Scientific and technological services and research and
design relating thereto; industrial analysis and research
services; pharmaceutical research and development services;
providing medical research and scientific research
information in the field of medicine and pharmaceuticals;
scientific services relating to the isolation and culture of
human tissues and cells; computer software for programming
and executing statistical analysis of data sets and for data
analysis.
84.
Method and Apparatus for Positional Reference in an Automated Manufacturing System
Applied within an automated robotic manufacturing system that includes additive manufacturing capabilities, methods and enabling devices are disclosed for achieving precise multi-dimension positional alignment among a plurality of diverse tools that are involved in collaboratively constructing a solid object. The enabling devices according to various embodiments include an automatically deployed contact sensing probe and a tool center point sensor that detects contact with tools in multiple axes. At least one disclosed method advantageously utilizes both sensing devices in complement.
Applied within an automated robotic manufacturing system that includes additive manufacturing capabilities, methods and enabling devices are disclosed for achieving precise multi-dimension positional alignment among a plurality of diverse took that are involved in collaboratively constructing a solid object. The enabling devices according to various embodiments include an automatically deployed contact sensing probe and a tool center point sensor that detects contact with tools in multiple axes. At least one disclosed method advantageously utilizes both sensing devices in complement.
Applied within an automated robotic manufacturing system that includes additive manufacturing capabilities, methods and enabling devices are disclosed for achieving precise multi-dimension positional alignment among a plurality of diverse tools that are involved in collaboratively constructing a solid object. The enabling devices according to various embodiments include an automatically deployed contact sensing probe and a tool center point sensor that detects contact with tools in multiple axes. At least one disclosed method advantageously utilizes both sensing devices in complement.
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B33Y 30/00 - Appareils pour la fabrication additiveLeurs parties constitutives ou accessoires à cet effet
B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
G05B 19/401 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique caractérisée par des dispositions de commande pour la mesure, p. ex. étalonnage et initialisation, mesure de la pièce à usiner à des fins d'usinage
G05B 19/402 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique caractérisée par des dispositions de commande pour le positionnement, p. ex. centrage d'un outil par rapport à un trou dans la pièce à usiner, moyens de détection additionnels pour corriger la position
G05B 19/4099 - Usinage de surface ou de courbe, fabrication d'objets en trois dimensions 3D, p. ex. fabrication assistée par ordinateur
87.
MANIFOLDS, SYSTEMS AND METHODS FOR CONDUCTING BIOLOGICAL STUDIES UNDER FLOW
Some embodiments of the disclosure disclose manifolds, microfluidic systems and methods that provide control over fluid flow distribution to an array of bio-scaffolds contained within the manifolds. In some embodiments, multiple perfusates may be injected into the manifold via multiple inlets where the manifold contains a bio-assembly with a substrate having a bio-scaffold disposed thereon. Biological investigations of the perfusates may then be conducted in the vascular components and chambers of the bio-scaffold.
Some embodiments of the disclosure disclose manifolds, microfluidic systems and methods that provide control over fluid flow distribution to an array of bio- scaffolds contained within the manifolds. In some embodiments, multiple perfusates may be injected into the manifold via multiple inlets where the manifold contains a bio-assembly with a substrate having a bio-scaffold disposed thereon. Biological investigations of the perfusates may then be conducted in the vascular components and chambers of the bio-scaffold.
C12M 1/12 - Appareillage pour l'enzymologie ou la microbiologie avec des moyens de stérilisation, filtration ou dialyse
C12M 1/32 - Inoculateur ou échantillonneur du type à champs multiples ou en continu
C12M 3/06 - Appareillage pour la culture de tissus, de cellules humaines, animales ou végétales, ou de virus avec des moyens de filtration, d'ultrafiltration, d'osmose inverse ou de dialyse
89.
MANIFOLDS, SYSTEMS AND METHODS FOR CONDUCTING BIOLOGICAL STUDIES UNDER FLOW
Some embodiments of the disclosure disclose manifolds, microfluidic systems and methods that provide control over fluid flow distribution to an array of bio- scaffolds contained within the manifolds. In some embodiments, multiple perfusates may be injected into the manifold via multiple inlets where the manifold contains a bio-assembly with a substrate having a bio-scaffold disposed thereon. Biological investigations of the perfusates may then be conducted in the vascular components and chambers of the bio-scaffold.
C12M 1/12 - Appareillage pour l'enzymologie ou la microbiologie avec des moyens de stérilisation, filtration ou dialyse
C12M 1/32 - Inoculateur ou échantillonneur du type à champs multiples ou en continu
C12M 3/06 - Appareillage pour la culture de tissus, de cellules humaines, animales ou végétales, ou de virus avec des moyens de filtration, d'ultrafiltration, d'osmose inverse ou de dialyse
90.
STEREOLITHOGRAPHY SYSTEM FOR ACCURATELY ESTABLISHING BUILD PLANE
A three-dimensional (3D) printing system includes a vessel, a coating subsystem, a calibration block, and a controller. The vessel is configured to contain a photocurable resin having a resin upper surface. The coating subsystem includes a coater module including a coater blade, a lateral movement mechanism coupled to the coater module, a sensor mounted to the coater module, and a vertical actuator system. The calibration block has a calibration surface. The controller is configured to operate the lateral movement mechanism to position the coater blade over the calibration block, operate the vertical actuator system to lower the coater blade into engagement with the calibration surface of the calibration block, operate the sensor to measure a distance to the calibration block, and store the distance as indicative of a vertical position of a lower edge of the coater blade.
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
Curable compounds, hydrogels, build materials, and methods of 3D printing are described herein. In some embodiments, a build material for 3D printing described herein comprises one or more compounds having the structure(s) of Formula (I) and/or Formula (II) herein. Such a build material may also comprise an additional acrylate component and water.
A three-dimensional (3D) printing system includes a vessel, a coating subsystem, a calibration block, and a controller. The vessel is configured to contain a photocurable resin having a resin upper surface. The coating subsystem includes a coater module including a coater blade, a lateral movement mechanism coupled to the coater module, a sensor mounted to the coater module, and a vertical actuator system. The calibration block has a calibration surface. The controller is configured to operate the lateral movement mechanism to position the coater blade over the calibration block, operate the vertical actuator system to lower the coater blade into engagement with the calibration surface of the calibration block, operate the sensor to measure a distance to the calibration block, and store the distance as indicative of a vertical position of a lower edge of the coater blade.
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
B29C 64/232 - Moyens d’entraînement pour un mouvement le long de l'axe orthogonal au plan d’une couche
B29C 64/236 - Moyens d’entraînement pour un mouvement dans une direction dans le plan d’une couche
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
05 - Produits pharmaceutiques, vétérinaires et hygièniques
07 - Machines et machines-outils
09 - Appareils et instruments scientifiques et électriques
10 - Appareils et instruments médicaux
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Biologically compatible polymers, namely, resins or
hydrogels used to manufacture polymeric networks used in the
manufacture of engineered living tissue for medical,
scientific and non-scientific purposes; cells for
scientific, laboratory or medical research; diagnostic
preparations for scientific or research use. Biological tissue cultures for medical purposes; diagnostic
preparations for medical purposes. Three dimensional (3D) printers; three dimensional (3D)
printer for the printing of engineered living tissues;
machines for manufacturing three dimensional (3D) engineered
tissue scaffolds or living tissues. Bioreactor for cell culturing; cell culture apparatus for
laboratory use, namely, cell culture instrument using tissue
cultures in a microfluidic device; laboratory apparatus,
namely, pumping systems, bioreactors, and cell assembly
apparatus for laboratory use for fabrication of three
dimensional (3D) engineered living tissues. Cell culture apparatus for medical use, namely, cell culture
instrument using tissue cultures in a microfluidic device. Three dimensional printing (3DP) services for other; 3D
bioprinting; bioprinting; creation of customized
three-dimensional shaped parts. Scientific and technological services and research and
design relating thereto; industrial analysis and research
services; pharmaceutical research and development services;
providing medical research and scientific research
information in the field of medicine and pharmaceuticals;
computer software for programming and executing statistical
analysis of data sets and for data analysis; scientific
services relating to the isolation and culture of human
tissues and cells.
A three-dimensional (3D) printing system is configured to manufacture a three-dimensional 3D article in a layer-by-layer manner. The 3D printing system includes a resin vessel, a tank agitation subsystem, a fabrication subsystem, and a controller. The resin vessel is configured to contain photocurable resin and has a lower region within a distance H of a bottom surface of the resin vessel. The agitation subsystem includes (a) a grating disposed within the lower region of the resin vessel and (b) an agitation movement mechanism coupled to the grating. The fabrication subsystem is configured to form the 3D article by a layer-by-layer selective curing of the photocurable resin. The controller is configured to operate the agitation movement mechanism to oscillate the grating along a lateral Y-axis to remix filler particulates within the photocurable resin.
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
B29C 64/255 - Enceintes pour le matériau de construction, p. ex. récipients pour poudre
A three-dimensional (3D) printing system (2) is configured to manufacture a three-dimensional 3D article (4) in a layer-by-layer manner. The 3D printing system includes a resin vessel (6), a tank agitation subsystem (12), a fabrication subsystem (33), and a controller (34). The resin vessel (6) is configured to contain photocurable resin (8) and has a lower region within a distance H of a bottom surface (10) of the resin vessel. The agitation subsystem includes (a) a grating (14) disposed within the lower region of the resin vessel and (b) an agitation movement mechanism (16) coupled to the grating (14). The fabrication subsystem (33) is configured to form the 3D article (4) by a layer-by-layer selective curing of the photocurable resin (8). The controller (36) is configured to operate the agitation movement mechanism (16) to oscillate the grating (14) along a lateral Y-axis to remix filler particulates within the photocurable resin (8).
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
B29C 64/307 - Manipulation du matériau destiné à être utilisé en fabrication additive
A three-dimensional printing system (2) includes a resin vessel (6), a fabrication subsystem (26), a waste collection subsystem (28), and a controller (38). The resin vessel is configured to contain photocurable resin (8). The fabrication subsystem is configured to form a 3D article (4) with layer-by-layer selective curing of the photocurable resin. The fabrication subsystem includes a build plate (10), a build plate support structure (14), and a vertical movement mechanism (16). The waste collection subsystem is attached to the build plate support structure and configured to capture partially polymerized resin as the build plate support structure moves in an upward direction. The controller is configured to (a) operate the vertical movement mechanism to translate the build plate support structure to a lower position and (b) operate the vertical movement mechanism to raise the waste collection subsystem up through the resin and to a position at which partially polymerized resin can be unloaded from the waste collection subsystem.
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
In one aspect, build materials and support materials for use with a 3D printer are described herein. Such materials include a phosphor component in combination with other components. In some embodiments, the phosphor component of a build material or support material is present in the material in an amount of 0.001-0.5 wt. % and has a peak photoluminescence (PL) emission wavelength of 430-750 nm and a photoluminescence quantum yield (QY) of 0.10-1.
B29C 64/40 - Structures de support des objets en 3D pendant la fabrication, lesdites structures devant être sacrifiées après réalisation de la fabrication
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
The present disclosure is directed towards systems and methods for controlling three-dimensional bioprinters. In some embodiments, a server system may provide a user interface that can be used by a user may able to provide three-dimensional bioprinter specifications. The server system may then be configured to generate command instructions compatible with a particular bioprinter and then transmit the command instructions to the indicated bioprinter. In some embodiments the disclosed systems and methods may eliminate the need for downloading drivers or bioprinter specific software onto a user computing device. In some embodiments the disclosed systems and methods may be configured for use in restricted internet access settings.
A method of preparing a structure is provided. The method includes providing an initial structure; casting a first material in one or more void volumes of the initial structure; removing the initial structure from the first material; obtaining a cast structure comprising the first material; coating a second material on the cast structure; casting a third material using the coated cast structure; removing the first material; and obtaining a final structure. In various embodiments, the initial structure can include a first initial structure and a second initial structure and casting a first material in one or more first void volumes of the first initial structure and in one or more second void volumes of the second initial structure. In various embodiments, the method includes assembling the first cast structure and the second cast structure and obtaining an assembled structure comprising the first cast structure and the second cast structure.
A three-dimensional printing system includes a support plate and a resin vessel. The support plate defines a central opening and an upper surface. The resin vessel is disposed upon the upper surface of the support plate and includes a substructure and a transparent sheet. The substructure includes a vertical wall and a tension ring that extends inwardly and downwardly from the vertical wall. The tension ring impinges downwardly upon an upper surface of the transparent sheet and tensions the transparent sheet.
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/135 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p. ex. par irradiation globale combinée avec un masque la source d’énergie étant concentrée, p. ex. lasers à balayage ou sources lumineuses focalisées
