Systems and methods for printing a 3D object on a 3D printer, including: receiving (i) a digital 3D model comprising a 3D geometry of the 3D object, (ii) a 2D displacement map, (iii) one or more maximal displacement values, and (iv) a printing resolution, calculating a displacement limit for each vertex of the 3D model based on the one or more maximal displacement values, applying local tessellation on the 3D model geometry in accordance with the 2D displacement map and with the printing resolution, thereby obtaining a tessellated 3D model, applying the displacement information of the 2D displacement map to the tessellated 3D model in accordance with the calculated displacement limit relative to each vertex, thereby obtaining a displaced 3D model, and printing the 3D object with the 3D printer based on the displaced 3D model.
A method of additive manufacturing comprises receiving digital data defining a shape of a three-dimensional object and based on the digital data, sequentially dispensing and solidifying a plurality of layers made of a modeling material and arranged in a configured pattern corresponding to the shape of the object. A portion of the layers forms one or more stacks, each encompassing a non-solid substance trapped between a plurality of building material pillars oriented perpendicularly to the layers.
B29C 64/386 - Acquisition ou traitement de données pour la fabrication additive
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
Systems and methods of printing a colored 3D object, including: receiving an original 3D digital model of a colored 3D object comprising data relating to the geometry and to the color of the 3D object, receiving a printing resolution information relating to a 3D printing device connected to the processor, reducing the amount of data of the original 3D digital model in accordance with the printing resolution of the printing device, a geometric variation threshold and a color variation threshold, thereby generating an approximated 3D digital model of the colored 3D object, and printing the 3D object on the 3D printing device based on the approximated 3D digital model.
G05B 19/042 - Commande à programme autre que la commande numérique, c.-à-d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques
B33Y 50/00 - Acquisition ou traitement de données pour la fabrication additive
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
Produits et services
Chemical materials, namely, photocurable liquid synthetic
resins and industrial chemicals used in 3D printers to
create 3D embodiments of computer-generated designs.
5.
METHOD AND SYSTEM FOR ENCODING DATA FOR ADDITIVE MANUFACTURING
A method of encoding data for additive manufacturing comprises: displaying a graphical user interface (GUI) having at least a planar segment selector control, a pattern shaping control, and a material selection control. The method also comprises displaying on the GUI a cross-section of a three-dimensional object at a position corresponding to a specific planar segment selected by the planar segment selector control. A planar pattern having nested contours is displayed over the cross-section, wherein each contour is shaped according to an input received by the pattern shaping control and is associated with at least one building material according to an input received by the material selection control. A data structure describing the planar pattern is stored in a computer storage.
A system and methods for solid freeform fabrication of an object is disclosed. The system comprises a solid freeform fabrication apparatus having a plurality of dispensing heads, a building material supply apparatus configured to supply a plurality of building materials to the fabrication apparatus, and a control unit configured for controlling the fabrication apparatus and the supply apparatus based on an operation mode selected from a plurality of predetermined operation modes.
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/112 - 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
Modeling material formulations usable in additive manufacturing of a denture structure, and additive manufacturing of denture structures employing same are provided. The modeling material formulations and the additive manufacturing parameters provide denture structures that exhibit mechanical, physical and biocompatibility properties that meet the requirements of the acceptable standards.
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
B33Y 80/00 - Produits obtenus par fabrication additive
C08F 220/18 - Esters des alcools ou des phénols monohydriques des phénols ou des alcools contenant plusieurs atomes de carbone avec l'acide acrylique ou l'acide méthacrylique
A method of encoding data for additive manufacturing, comprises receiving a first computer object shell dataset and a second computer object shell dataset, respectively describing geometries and optical property assignments of a first object part and a second object part, and obtaining a combined dataset describing an object assembly representing a partial embedding of the first object part in the second object part. The method also comprises updating optical property assignment for the combined dataset by replacing optical property assignment for each dataset element corresponding to a portion of a respective object part which is external in the object part but internal in the object assembly.
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
Produits et services
(1) Chemical materials, namely, photocurable liquid synthetic resins and industrial chemicals used in 3D printers to create 3D embodiments of computer-generated designs.
10.
METHOD AND A SYSTEM FOR GENERATING COMPUTER OBJECT DATA FOR ADDITIVE MANUFACTURING
A method of generating computer object data for additive manufacturing, comprises: displaying a graphical user interface (GUI); loading image data describing a two-dimensional image selected by the GUI; and based on a tiling pattern selected by the GUI, defining a plurality of discrete tiling elements each associated with a different portion of the image data. The method further comprises displaying on the GUI a three-dimensional image comprising a plurality of discrete protruding elements respectively jutting out of the tiling elements, wherein each protruding element has a three-dimensional shape selected by the relief selection control set, and wherein at least a segment of each protruding element has at least one intensity level according to a respective portion of the image data. The method further comprises generating computer object data describing the protruding elements.
A method of additive manufacturing of a three-dimensional object, comprises: dispensing from a first array of nozzles a modeling material formulation containing a polyimide precursor to form a layer in a configured pattern corresponding to a shape of a slice of the object; applying to the layer ultraviolet radiation and infrared radiation from two different radiation sources; and repeating the dispensing and the application of radiation to form a plurality of layers in configured patterns corresponding to shapes of other slices of the object. Optionally, an additional modeling material formulation or a support material formulation is dispensed from a second array of nozzles.
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 64/277 - Agencements pour irradiation utilisant des moyens de rayonnement multiples, p. ex. des micro-miroirs ou des diodes électroluminescentes multiples [LED]
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29K 79/00 - Utilisation comme matière de moulage d'autres polymères contenant dans la chaîne principale uniquement de l'azote avec ou sans oxygène ou carbone
Formulations usable in additive manufacturing of a three-dimensional object, which comprise a reinforcing material such as silica particles in an amount of from 10 to 30%, or from 15 to 20%, by weight, of the total weight of the formulation, and a designed combination of curable materials as described in the specification, is provided. Additive manufacturing of three-dimensional objects made of such a formulation and featuring enhanced mechanical properties, and objects obtained thereby are also provided.
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
Modeling material formulations usable in additive manufacturing of a denture structure, and additive manufacturing methods employing same are provided. Kits comprising the modeling material formulation, optionally in combination with a support material formulation, are also provided.
A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication
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
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
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
B33Y 80/00 - Produits obtenus par fabrication additive
C09D 11/037 - Encres d’imprimerie caractérisées par des particularités autres que la nature chimique du liant caractérisées par le pigment
C09D 11/107 - 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
15.
Display screen or portion thereof with graphical user interface
A method of 3D printing to achieve a desired surface quality on at least one surface of a 3D printed object comprising selecting a base surface having the desired surface quality; and printing the 3D printed object on the base surface, so that the desired surface quality is imparted to one surface of the 3D printed object during printing. The surface quality may be glassiness, roughness, smoothness and texture in general. Objects may thus be manufactured in which electronic components are integrated in or under a glass-like 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 curable formulation that provides, when hardened, an elastomeric material that features improved stability and durability, made of at least one curable, mono-functional, hydrophobic material featuring Tg lower than 0 °C; at least one curable, mono-functional, hydrophobic material featuring Tg of from 0 to 100, or from 20 to 100, or from 20 to 80, °C; at least one curable, multi-functional, hydrophobic elastomeric material, and optionally additional curable and non-curable materials, is provided. An additive manufacturing of a three-dimensional object having in at least a portion thereof an elastomeric material, employing a curable formulation as described herein is also provided.
C08F 220/18 - Esters des alcools ou des phénols monohydriques des phénols ou des alcools contenant plusieurs atomes de carbone avec l'acide acrylique ou l'acide méthacrylique
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
B33Y 80/00 - Produits obtenus par fabrication additive
18.
ELASTOMERIC FORMULATIONS CONTAINING POLYMERIC SILICONE MATERIALS USABLE IN ADDITIVE MANUFACTURING OF 3D OBJECTS
A curable formulation that provides, when hardened, an elastomeric material featuring improved resilience (EDE) is provided. The curable formulation is composed of curable, mono-functional elastomeric material(s) and/or curable, multi-functional elastomeric material(s), optionally one or more of curable, mono-functional non-elastomeric material(s), curable multi-functional non-elastomeric material(s) and curable material(s) that comprise at least two hydrogen bond forming groups, and at least one polymeric silicone material as described in the specification and claims. Additive manufacturing 3D objects utilizing the curable formulation is also provided.
A curable formulation that provides, when hardened, an elastomeric material which is usable in additive manufacturing of a three-dimensional object is provided. The formulation is based on curable mono-functional and multi-functional elastomeric materials, in combination with a curable, multi-functional, non-elastomeric material and
a curable material that comprises at least two hydrogen bond forming groups.
C08L 33/10 - Homopolymères ou copolymères des esters de l'acide méthacrylique
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 64/277 - Agencements pour irradiation utilisant des moyens de rayonnement multiples, p. ex. des micro-miroirs ou des diodes électroluminescentes multiples [LED]
B29K 33/00 - Utilisation de polymères d'acides non saturés ou de leurs dérivés comme matière de moulage
A system for three-dimensional printing comprises: a three-dimensional printing apparatus for printing an object using a building material supplied from a container, and a computer. The computer is configured to receive working hours of personnel operating the apparatus, to calculate, based on three-dimensional printing data describing the object, a supply period during which the container is expected to be emptied, and to transmit to the apparatus a signal to initiate the printing at a delayed time selected to ensure that an end time of the supply period is within the working hours.
A support material formulation for use in additive manufacturing of a three-dimensional object, which, when hardened, is soluble upon immersion in water, is provided. The formulation includes a hydrophilic curable mono-functional material; a polyol (e.g., a branched polyol) having a molecular weight lower than 1,000, or lower than 800 grams/mol; and a polyester material having a molecular weight higher than 400, or higher than 500, grams/mol. Additive manufacturing using the disclosed formulation and objects made thereby are also provided.
B29C 64/40 - Structures de support des objets en 3D pendant la fabrication, lesdites structures devant être sacrifiées après réalisation de la fabrication
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
B29K 67/00 - Utilisation de polyesters comme matière de moulage
B29K 105/00 - Présentation, forme ou état de la matière moulée
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
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
23.
Formulations usable in additive manufacturing of a three-dimensional object made of a soft material
Modeling material formulations and formulation systems usable in additive manufacturing of a three-dimensional object, featuring, when hardened, a Shore A hardness lower than 10 and/or a Shore 00 hardness lower than 40, are provided. Additive manufacturing processes utilizing these formulations and formulation systems, and three-dimensional objects obtainable thereby, are also provided.
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
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 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B33Y 40/00 - Opérations ou équipements auxiliaires, p. ex. pour la manipulation de matériau
Method and kits for handling an aqueous waste solution or dispersion obtained upon removing a water-miscible support material from a three-dimensional object during additive manufacturing of the object, and additive manufacturing processes utilizing same are provided. The methods and kits utilize a super absorbent polymeric material to convert the liquid waste solution to a solid or semi-solid composition.
B29C 64/40 - Structures de support des objets en 3D pendant la fabrication, lesdites structures devant être sacrifiées après réalisation de la fabrication
B33Y 40/20 - Posttraitement, p. ex. durcissement, revêtement ou polissage
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
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
Produits et services
chemical materials, namely, photocurable liquid synthetic resins and industrial chemicals used in 3D printers to create 3D embodiments of computer-generated designs
26.
APPARATUS AND METHODS FOR 3D PRINTING USING 3D FILTERING MASKS
Apparatus and methods are provided for slicing a 3D model for 3D printing (430) including: defining a material attribute of the 3D model as a building material; defining a material attribute of a 3D mask overlapping the 3D model as air; allocating a first printing priority to the 3D model (430) and a second priority to the 3D mask, wherein the second printing priority is set higher than the first; slicing the 3D model (430) and the overlapping 3D mask into a sequence of slices, wherein a material attribute of each pixel of each slice is selected as a material attribute of a 3D model pixel or a 3D mask pixel at a corresponding pixel position and, where the 3D model (430) and the 3D mask overlap, the material attribute of the 3D mask pixel is selected according to the higher printing priority.
Modeling material formulations usable for printing three-dimensional objects on a substrate such as a fabric, and methods and systems utilizing same are provided. The modeling material formulation comprises a combination of mono-functional and multi-functional materials that provide a flexible hardened material.
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
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
B33Y 80/00 - Produits obtenus par fabrication additive
A waste collecting system (136) comprises a bath (200) for collecting liquid waste (202) from the leveling device (32), a bath cover (204) covering the bath (200), and a waste removal pipe (208) sealingly passing through the cover (204) and being configured to generate under-pressure in an interior of the bath (200) so as to suck the liquid waste out of the bath. The waste collecting system is useful for collecting waste from a leveling device of a three-dimensional printing system.
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 method of forming an object on a fabric by three-dimensional printing, comprises: printing on the fabric an adhesion structure having a stack of layers in a configured pattern corresponding to a shape of a bottommost surface of the object, wherein for each layer of the stack the printing comprises dispensing (602) and curing (603) a first formulation along a scanning direction. The method also comprises printing the object onto the stack by dispensing and curing (604) a building formulation in layers along the direction in configured patterns corresponding to shapes of slices of the object. Optionally, the curing comprises irradiating the layer by creating a pattern of curing radiation that scans the layer along the direction, wherein the pattern has a shape of a single stripe.
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 64/291 - Agencements pour irradiation pour un fonctionnement dans un ensemble, p. ex. avec des activateurs ou des inhibiteurs sélectivement appliqués
Curable additive formulations usable in printing three-dimensional objects on a substrate such as a fabric, and methods and systems utilizing same are provided. The additive formulations comprise a combination of mono-functional and multi-functional materials that provide a suitable adhesive material or structure and/or a suitable coating to the printed objects.
C08F 220/30 - Esters contenant de l'oxygène en plus de l'oxygène de la fonction carboxyle contenant des cycles aromatiques dans la partie alcool
C09D 5/00 - Compositions de revêtement, p. ex. peintures, vernis ou vernis-laques, caractérisées par leur nature physique ou par les effets produitsApprêts en pâte
C09D 11/54 - Encres à base de deux liquides, l’un des liquides étant l’encre, l’autre liquide étant une solution de réaction, un fixateur ou une solution de traitement pour l’encre
C08F 2/48 - Polymérisation amorcée par énergie ondulatoire ou par rayonnement corpusculaire par la lumière ultraviolette ou visible
B33Y 40/20 - Posttraitement, p. ex. durcissement, revêtement ou polissage
D06P 5/00 - Autres caractéristiques de la teinture ou de l'impression des textiles ou de la teinture du cuir, des fourrures ou des substances macromoléculaires de toutes formes
B29C 64/30 - Opérations ou équipements auxiliaires
31.
METHOD AND SYSTEM FOR MEASURING A JETTING CHARACTERISTIC
A printing system comprises an inkjet printing head having a plurality of nozzles, and a container containing a liquid material and being in fluid communication with the head by a conduit for feeding the head with the liquid material. The printing system also comprises a pressure sensor configured to generate a signal indicative of a pressure at an outlet of the conduit, and a controller configured to control the head to dispense through the nozzles liquid material received via the conduit, and to calculate one or more jetting characteristics based on the pressure.
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/112 - 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 system for additive manufacturing comprises an array of nozzles for dispensing a building material on a receiving surface; a curing system having an irradiation source emitting a beam of curing radiation, and a beam manipulator for manipulating an angular width of the beam on the building material. A computerized controller controls the array of nozzles to dispense the building material formulation to form a layer in a configured pattern corresponding to a slice of a three-dimensional object, and to control the beam manipulator to select an angular width of the beam based on a three-dimensional shape of a stack of previously formed layers.
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 method for 3D color printing of an object includes slicing a 3D model of the object, adding color data to slices of the 3D model and printing the slices with a printing block including a plurality of channels. The plurality of channels include channels, each with different colored building material, and a channel with a clear building material. Printing includes dispensing at each target location of a travel of the printing block, building material from two channels of the plurality of channels. The two channels per target location are selected based on the color data.
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 method of additive manufacturing of a three-dimensional object includes sequentially dispensing and solidifying a plurality of layers. The plurality of layers may be formed with a plurality of different colored model materials, a flexible material arranged in a configured pattern to form a sacrificial structure at least partially encompassing the object, and a soft material. The soft material is arranged in a configured pattern to provide separation between the model material and the sacrificial structure. The plurality of different colored model materials is arranged in a configured pattern corresponding to the shape and color definition of the object.
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 64/40 - Structures de support des objets en 3D pendant la fabrication, lesdites structures devant être sacrifiées après réalisation de la fabrication
Methods of printing a 3D object comprising depositing a building material, layer by layer, via printing heads comprising one or more nozzle arrays; and activating each of said printing heads to dispense a building material at least once within a specified period of time during printing to form a portion of said bulk region according to data provided by a CAD file, and activating said printing heads to deposit the building material to form another portion of the bulk region without relating to said data.
B33Y 30/00 - Appareils pour la fabrication additiveLeurs parties constitutives ou accessoires à cet effet
B33Y 40/00 - Opérations ou équipements auxiliaires, p. ex. pour la manipulation de matériau
B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
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 system for three-dimensional printing is disclosed. The system comprises: a rotary tray configured to rotate about a vertical axis; a printing head, each having a plurality of separated nozzles; and a controller configured for controlling the inkjet printing head to dispense, during the rotation, droplets of building material in layers, such as to print a three-dimensional object on the tray.
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 64/20 - Appareil pour la fabrication additiveDétails ou accessoires à cet effet
B29C 64/241 - Moyens d’entraînement pour mouvement rotatif
Novel support material formulations, characterized as providing a cured support material with improved dissolution rate, while maintaining sufficient mechanical strength, are disclosed. The formulations comprise a water-miscible non-curable polymer, a first water-miscible, curable material and a second, water-miscible material that is selected capable of interfering with intermolecular interactions between polymeric chains formed upon exposing the first water-miscible material to curing energy. Methods of fabricating a three-dimensional object, and a three-dimensional object fabricated thereby are also disclosed.
B29C 64/40 - Structures de support des objets en 3D pendant la fabrication, lesdites structures devant être sacrifiées après réalisation de la fabrication
B29C 35/08 - Chauffage ou durcissement, p. ex. réticulation ou vulcanisation utilisant l'énergie ondulatoire ou un rayonnement corpusculaire
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
B33Y 40/20 - Posttraitement, p. ex. durcissement, revêtement ou polissage
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
B33Y 80/00 - Produits obtenus par fabrication additive
C08F 2/48 - Polymérisation amorcée par énergie ondulatoire ou par rayonnement corpusculaire par la lumière ultraviolette ou visible
C08F 220/28 - Esters contenant de l'oxygène en plus de l'oxygène de la fonction carboxyle ne contenant pas de cycles aromatiques dans la partie alcool
C08F 283/06 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères prévus par la sous-classe sur des polyéthers, des polyoxyméthylènes ou des polyacétals
C11D 3/04 - Composés inorganiques solubles dans l'eau
G03F 7/00 - Production par voie photomécanique, p. ex. photolithographique, de surfaces texturées, p. ex. surfaces impriméesMatériaux à cet effet, p. ex. comportant des photoréservesAppareillages spécialement adaptés à cet effet
G03F 7/027 - Composés photopolymérisables non macromoléculaires contenant des doubles liaisons carbone-carbone, p. ex. composés éthyléniques
An additive manufacturing (AM) system includes a carriage that deposits material in a defined pattern and a building platform that receives material deposited from the carriage. The carriage includes a pre-heating assembly with a plurality of pre-heating chambers and a printing block with a plurality of slots for receiving a plurality of printing heads. The carriage is equipped with more pre-heating chambers than head slots.
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
B29B 13/02 - Conditionnement ou traitement physique de la matière à façonner par chauffage
B29C 35/02 - Chauffage ou durcissement, p. ex. réticulation ou vulcanisation
A method of three-dimensional fabrication of an object is disclosed. The method comprises: forming a plurality of layers in a configured pattern corresponding to the shape of the three-dimensional object, at least one layer of the plurality of layers being formed at a predetermined and different thickness selected so as to compensate for post-formation shrinkage of the layer along a vertical direction. In various exemplary embodiments of the invention spread of building material of one or more layers is diluted at least locally such as to maintain a predetermined thickness and a predetermined planar resolution for the layer.
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/00 - 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 64/112 - 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 64/386 - Acquisition ou traitement de données pour la fabrication additive
A tubular structure fabricated by additive manufacturing from non-biological building material formulations, and featuring an elongated core, a shell encapsulating the core and an intermediate shell between the core and the shell. Each of the core, the shell and the intermediate shell is made of a different material or a different combination of materials. Both the core and the intermediate shell are sacrificial. Additive manufacturing of the tubular structure is usable for fabricating an object featuring properties of a blood vessel.
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 method of treating an object fabricated from a modeling material by additive manufacturing, comprises exposing the object to visible light having a peak wavelength less than 470 nm, and to a temperature of less than a heat deflection temperature (HDT) of the modeling material.
B29C 64/188 - Procédés de fabrication additive impliquant des opérations supplémentaires effectuées sur les couches ajoutées, p. ex. lissage, meulage ou contrôle d’épaisseur
B29C 71/04 - Post-traitement d'objets sans modification de leur formeAppareils à cet effet par énergie ondulatoire ou rayonnement corpusculaire
42.
ADDITIVE MANUFACTURING OF THREE-DIMENSIONAL OBJECTS CONTAINING A TRANSPARENT MATERIAL
Curable formulations which are usable in additive manufacturing of three-dimensional objects using a transparent material, and which can be advantageously usable in additive manufacturing systems that utilize a LED curing source are provided. Additive manufacturing processes using same and objects made thereby are also provided.
A method of printing a three-dimensional object (90) including: providing a 3D inkjet printing system including: a printing chamber (162) accommodating a printing unit (120) having an inkjet printing head and a curing subunit (124), and a supply unit (130) including a modeling material and a support material; and printing the 3D object (90) in multiple consecutive layers according to a predefined printing sequence, wherein for at least one of the multiple consecutive layers the predefined printing sequence for the same respective layer includes depositing and curing the modeling material and the support material separately from each other either in time or in space. Some embodiments may include controlling a concentration of oxygen in the printing chamber (162) to be in a predefined oxygen concentration range. Some embodiments may include controlling a temperature in the printing chamber (162) to be in a predefined temperature range.
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 64/371 - Conditionnement de l’environnement en utilisant un environnement autre que l’air, p. ex. un gaz inerte
B29C 64/40 - Structures de support des objets en 3D pendant la fabrication, lesdites structures devant être sacrifiées après réalisation de la fabrication
44.
METHOD AND SYSTEM FOR THREE-DIMENSIONAL PRINTING ON FABRIC
A method of testing adherence level of a substance to a fabric, comprises: printing a stack of layers of the substance on the fabric, and printing a modeling material onto the stack of substance layers to form two gap-separated stacks of modeling material layers. The method also comprises bending the fabric at the gap so as to detach at least one of the stacks of modeling material layers from the fabric at a detachment point bordering the gap.
G01N 19/04 - Mesure de la force d'adhérence entre matériaux, p. ex. du ruban adhésif, d'un revêtement
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
B22F 10/00 - Fabrication additive de pièces ou d’objets à partir de poudres métalliques
B29C 64/30 - Opérations ou équipements auxiliaires
B29C 64/386 - Acquisition ou traitement de données pour la fabrication additive
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
A system for three-dimensional printing comprises an array of nozzles for dispensing building materials, a work tray (12/360) and a jig (402) configured for affixing a fabric (420) to the work tray. A computerized controller operates at least the array of nozzles to dispense a building material in a configured pattern corresponding to a shape of an object on the affixed fabric.
A method of additive manufacturing an object featuring properties of a hard bodily tissue, comprises: dispensing and solidifying a plurality of non-biological material formulations to sequentially form a plurality of hardened layers in a configured pattern corresponding to a shape of the object. The method forms voxel elements containing different material formulations at interlaced locations to provide a three-dimensional textured region spanning over the portion. The material formulations and the interlaced locations are selected such that the textured region exhibits, once hardened, a stress variation of at most ±20% over a strain range of from about 0.1% to about 0.3%.
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 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
A system for building a three dimensional green compact comprising a printing station configured to print a mask pattern on a building surface, wherein the mask pattern is formed of solidifiable material; a powder delivery station configured to apply a layer of powder material on the mask pattern; a die compaction station for compacting the layer formed by the powder material and the mask pattern; and a stage configured to repeatedly advance a building tray to each of the printing station, the powder delivery station and the die compaction station to build a plurality of layers that together form the three dimensional green compact.
B22F 12/86 - Traitement ou fabrication en série avec plusieurs dispositifs groupés
B29C 64/165 - Procédés de fabrication additive utilisant une combinaison de matériaux solides et liquides, p. ex. une poudre avec liaison sélective par liant liquide, catalyseur, inhibiteur ou absorbeur d’énergie
A formulation usable in additive manufacturing of a three-dimensional object is provided. The formulation comprises one or more monofunctional curable material(s); one or more hydrophilic multifunctional curable material(s); and one or more water-miscible non-curable material(s), such that a total amount of the curable materials is 20% or less, by weight, and a weight ratio of a total weight of the monofunctional curable material(s) and a total weight of the hydrophilic multifunctional curable material(s) ranges from 1:1 to 10:1. The formulation features, when hardened, properties of a weak and flowable gel. Additive manufacturing processes utilizing the formulation as a support material formulation are also provided.
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 64/40 - Structures de support des objets en 3D pendant la fabrication, lesdites structures devant être sacrifiées après réalisation de la fabrication
49.
METHOD AND SYSTEM FOR RENDERING DATA FOR ADDRESSABLE DISPENSING
A method of rendering data for addressable dispensing of material over a working surface, comprises: receiving input image data arranged grid-wise over a plurality of picture-elements; generating an initial map describing a distance field and having a plurality of map-elements each storing distance information corresponding to one picture-element; for each picture-element of at least a portion of the picture-elements: linearly scanning the map independently along a first axis and along a second axis, and updating a respective map-element based on values of map-elements visited during the scan. The distance field can include distances defined perpendicularly to the working surface.
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
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
50.
GPU material assignment for 3D printing using 3D distance fields
A system for generating slice data for additive manufacturing, comprises a graphics processing unit (GPU) that receives a digital model of an object in a three-dimensional build space defined over a plurality of slices, computes a three-dimensional signed distance field over voxels in the build space, assigns a building material to each voxel based on a respective distance field value, and generates slice data output pertaining to the building material assignments for each slice. The slice data output can be used for printing the object in layers corresponding to the slices. The distance field comprises one or more vector having a vertical component with respect to the slices.
B29C 64/386 - Acquisition ou traitement de données pour la fabrication additive
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
G03G 15/22 - Appareils pour procédés électrographiques utilisant un dessin de charge impliquant la combinaison de plus d'une phase de traitement comprise dans les groupes
G06F 30/00 - Conception assistée par ordinateur [CAO]
G06T 1/20 - Architectures de processeursConfiguration de processeurs p. ex. configuration en pipeline
Methods and systems are disclosed for selecting a print head of a 3D printing machine to apply 3D printing material at one or more positions in a printed 3D object. Embodiments of the present invention may include, in the selection process one or more elements pertaining for example to: geometry of the received 3D model; colorization of the received 3D model; transparency of the received 3D model; properties of the 3D printing material; and constraints of the 3D printing machine.
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/112 - 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 formulation system usable in additive manufacturing of a three-dimensional object that comprises, in at least a portion thereof, a cyanate ester-containing polymeric network, and additive manufacturing processes employing the formulation system are provided. Also provided are objects obtainable by the additive manufacturing and kits containing the formulation system. The formulation system includes a first modeling material formulation which includes a first curable material which is a thermally-curable cyanate ester and a second modeling material formulation which comprises an activating agent for promoting polymerization of the cyanate ester and is devoid of the first curable material, and further includes a second curable material which is different from the first curable material, and optionally an agent for promoting hardening of the second curable material.
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
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
C08L 79/04 - Polycondensats possédant des hétérocycles contenant de l'azote dans la chaîne principalePolyhydrazidesPolyamide-acides ou précurseurs similaires de polyimides
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 11/38 - Encres pour l'impression à jet d'encre caractérisées par des additifs non macromoléculaires autres que les solvants, les pigments ou les colorants
53.
METHOD AND SYSTEM FOR FABRICATING AN OBJECT HAVING INTERNAL PILLARS
A method of additive manufacturing comprises receiving digital data defining a shape of a three-dimensional object and based on the digital data, sequentially dispensing and solidifying a plurality of layers made of a modeling material and arranged in a configured pattern corresponding to the shape of the object. A portion of the layers forms one or more stacks, each encompassing a non-solid substance trapped between a plurality of building material pillars oriented perpendicularly to the layers.
A61K 6/887 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
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
B33Y 70/10 - Composites de différents types de matériaux, p. ex. mélanges de céramiques et de polymères ou mélanges de métaux et de biomatériaux
55.
SYSTEM AND METHOD FOR PRINTING A LABELED THREE-DIMENSIONAL OBJECT
Systems and methods for 3D printing a labeled object, including: receiving a 3D container mesh, receiving a 3D label mesh, wherein the 3D label mesh is an open mesh, ensuring correct positioning of the label mesh in relation to the container mesh, projecting the contour of the label mesh onto the container mesh to obtain a container mesh overlapping area, applying a local tessellation to the container mesh overlapping area according to the label contour, thereby generating a tessellated container mesh and/or applying a local tessellation to the label mesh according to the container mesh overlapping area, thereby generating a tessellated label mesh, replacing the tessellated container mesh overlapping area with the tessellated label mesh, thereby obtaining a labeled container mesh, and printing the labeled 3D object based on the labeled container mesh.
Systems and methods for printing a 3D object on a 3D printer, including: receiving (i) a digital 3D model comprising a 3D geometry of the 3D object, (ii) a 2D displacement map, (iii) one or more maximal displacement values, and (iv) a printing resolution, calculating a displacement limit for each vertex of the 3D model based on the one or more maximal displacement values, applying local tessellation on the 3D model geometry in accordance with the 2D displacement map and with the printing resolution, thereby obtaining a tessellated 3D model, applying the displacement information of the 2D displacement map to the tessellated 3D model in accordance with the calculated displacement limit relative to each vertex, thereby obtaining a displaced 3D model, and printing the 3D object with the 3D printer based on the displaced 3D model.
Systems and methods of printing a colored 3D object, including: receiving an original 3D digital model of a colored 3D object comprising data relating to the geometry and to the color of the 3D object, receiving a printing resolution information relating to a 3D printing device connected to the processor, reducing the amount of data of the original 3D digital model in accordance with the printing resolution of the printing device, a geometric variation threshold and a color variation threshold, thereby generating an approximated 3D digital model of the colored 3D object, and printing the 3D object on the 3D printing device based on the approximated 3D digital model.
A system for delivering liquid material to a nozzle array of a printing system comprises a cartridge and a vented sub-tank. The cartridge has a cartridge outlet and contains the liquid material. The sub-tank has a sub-tank inlet configured to receive the cartridge outlet to allow the liquid material to flow through the cartridge outlet by gravity, two inlet ports within the sub-tank inlet at different heights relative to a liquid level in the sub-tank, and a sub-tank outlet. The sub- tank outlet is sealingly connectable to the nozzle array by a pipe and has an outlet port below the inlet ports.
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
B41J 2/19 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par la manipulation de l'encre pour éliminer les bulles d'air
Modeling material formulations usable in additive manufacturing of a denture structure, and additive manufacturing methods employing same are provided. Kits comprising the modeling material formulation, optionally in combination with a support material formulation, are also provided.
A61K 6/887 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
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
B33Y 70/10 - Composites de différents types de matériaux, p. ex. mélanges de céramiques et de polymères ou mélanges de métaux et de biomatériaux
60.
SYSTEM AND METHOD FOR PRINTING A THREE-DIMENSIONAL OBJECT
A system and method of printing a three-dimensional (3D) object may include: receiving an original mesh file of a 3D object, said mesh file comprising a primary mesh data element, representing a respective primary mesh, defined by a plurality of polygons; identifying at least one target design element, associated with the primary mesh; producing at least one auxiliary mesh, based on a geometry of said at least one identified target design element; creating a modified mesh file comprising the primary mesh and the at least one auxiliary mesh; and printing the 3D object based on the modified mesh file.
A method of additive manufacturing of a three-dimensional object. The method comprises: sequentially dispensing and solidifying a plurality of layers comprising (i) a stack of model layers arranged in a configured pattern corresponding to the shape of the object and being made of a modeling material, (ii) a sacrificial structure having a stack of sacrificial layers made of an elastomeric material, and (iii) a stack of intermediate layers made of a support material having an elastic modulus less than the elastomeric material and being between the stack of model layers and the sacrificial structure; and applying a peeling force to the sacrificial structure to remove the sacrificial structure, and to expose the stack of model layers and/or the stack of intermediate layers beneath the sacrificial structure.
B29C 64/40 - Structures de support des objets en 3D pendant la fabrication, lesdites structures devant être sacrifiées après réalisation de la fabrication
B33Y 30/00 - Appareils pour la fabrication additiveLeurs parties constitutives ou accessoires à cet effet
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 leveling system for a three-dimensional printing system, comprises a rotatable roller, a waste collecting bath, a blade for removing liquid waste from the roller into the bath, and a plurality of tubular structures. Each tubular structure has an inlet at a vicinity of a base of the bath and an outlet connectable to a pump system.
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 method of encoding data for additive manufacturing comprises: displaying a graphical user interface (GUI) (500) having at least a planar segment selector control (502), a pattern shaping control (506), and a material selection control (508). The method also comprises displaying on the GUI (500) a cross-section (510) of a three-dimensional object (512) at a position corresponding to a specific planar segment selected by the planar segment selector control (502). A planar pattern having nested contours is displayed over the cross-section, wherein each contour is shaped according to an input received by the pattern shaping control (506) and is associated with at least one building material according to an input received by the material selection control (508). A data structure describing the planar pattern is stored in a computer storage.
G06F 30/12 - CAO géométrique caractérisée par des moyens d’entrée spécialement adaptés à la CAO, p. ex. interfaces utilisateur graphiques [UIG] spécialement adaptées à la CAO
G06F 30/17 - Conception mécanique paramétrique ou variationnelle
G06F 113/10 - Fabrication additive, p. ex. impression en 3D
64.
Three-dimensional inkjet printing using ring-opening metathesis polymerization
Methods for fabricating three-dimensional objects by 3D-inkjet printing technology are provided. The methods utilize curable materials that polymerize via ring-opening metathesis polymerization (ROMP) in combination with toughening agents for fabricating the object. Systems suitable for performing these methods and kits containing modeling material formulations usable in the methods are also provided.
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
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
B33Y 30/00 - Appareils pour la fabrication additiveLeurs parties constitutives ou accessoires à cet effet
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
C08G 61/08 - Composés macromoléculaires contenant uniquement des atomes de carbone dans la chaîne principale de la molécule, p. ex. polyxylylènes uniquement des atomes de carbone aliphatiques préparés par ouverture du cycle des composés carbocycliques des composés carbocycliques contenant une ou plusieurs doubles liaisons carbone-carbone dans le cycle
C08K 3/013 - Charges, pigments ou agents de renforcement
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
B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
Methods of fabricating three-dimensional objects featuring properties of a soft bodily tissue and three-dimensional objects featuring properties of a soft bodily tissue or of an organ comprising same are provided.
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
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
B29C 64/194 - Procédés de fabrication additive impliquant des opérations supplémentaires effectuées sur les couches ajoutées, p. ex. lissage, meulage ou contrôle d’épaisseur pendant l’empilage des couches
A safety system, for a rotary tray of a three-dimensional printing system comprises a latch having a lock member and being operable to assume a locked state in which the latch prevents the door of the printing system from closing while the lock member prevents the tray from rotating, and an unlocked state in which the latch allows the door to close while the lock member allows the tray to rotate.
B29C 64/241 - Moyens d’entraînement pour mouvement rotatif
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
68.
Formulations usable in additive manufacturing of a three-dimensional object made of a soft material
Modeling material formulations and formulation systems usable in additive manufacturing of a three-dimensional object, featuring, when hardened, a Shore A hardness lower than 10 and/or a Shore 00 hardness lower than 40, are provided. Additive manufacturing processes utilizing these formulations and formulation systems, and three-dimensional objects obtainable thereby, are also provided.
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
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 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B33Y 40/00 - Opérations ou équipements auxiliaires, p. ex. pour la manipulation de matériau
A service station system for a three-dimensional printing system comprises: a bath, having a fast-release connector at a front side thereof, and a hinge at a back side thereof for hingebly connecting an open top of the bath to a surface of the three-dimensional printing system; and a wiper assembly, having a wiper device detachably connected to a wiper base mounted on a rotatable axis passing through the bath. The wiper device wipes a dispensing face of the printing head of the three-dimensional printing system while the head reciprocally moves above the bath between the back side and the front side. The service station system can also comprise a motor for rotating the axis.
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
B33Y 40/20 - Posttraitement, p. ex. durcissement, revêtement ou polissage
70.
Apparatus and methods for additive manufacturing of three dimensional objects
A method of additive manufacturing a three-dimensional object by layerwise deposition of a building material with an inkjet printing system comprising a print head and a building tray, comprises calculating a weighting value for each nozzle, then for each layer obtaining a 2-D map of the layer, comprising active pixels at building material dispensing positions; obtaining a Data Correction Filter (DCF) including a height map of the previous layer, comparing the data of the 2D map to the data of the DCF at each position and determining if the nozzle at that position should dispense, then printing the layer, updating the weighting values and adjusting the position of the print head vis a vis the printing tray. The above is repeated until the three-dimensional object is printed.
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/112 - 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 64/188 - Procédés de fabrication additive impliquant des opérations supplémentaires effectuées sur les couches ajoutées, p. ex. lissage, meulage ou contrôle d’épaisseur
A method of printing a 3D object comprising a plurality of discrete elements, the method comprising: receiving a 3D digital model of a shell group comprising one or more shells representing the plurality of discrete elements; defining, in the 3D digital model, a unifying shell to at least partly envelop one or more shells of the shell group to provide a unified digital model comprising the shell group and the unifying shell; assigning the unifying shell with at least one transparent building material that is transparent upon dispensing and solidifying thereof; assigning the one or more shells of the shell group with one or more building materials; and dispensing, in layers, the at least one transparent building material and the one or more building materials according to the unified digital model to form a 3D object comprising one or more discrete elements that are at least partly connected by a unifying element.
A supporting structure built together with an object in an additive manufacturing (AM) process and configured to support an overhang of the object is described. The supporting structure includes a first array of pillars formed with a first material and reinforced with a second material. Each of the pillars in the first array includes a top. At least a portion of the tops in the first array adjoin and define a surface on which the overhang of the object may be supported. The first material is support material.
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 64/40 - Structures de support des objets en 3D pendant la fabrication, lesdites structures devant être sacrifiées après réalisation de la fabrication
A waste management system for an AM device includes a waste container, an air cleaning device installed within an enclosure of the AM device, a first conduit and at least one second conduit. The air cleaning device condense vapors formed within an enclosure of the AM device during operation of the AM device. The first conduit directs the condensed vapors in a liquid state from the air cleaning device to the waste container and the at least one second conduit directs waste accumulated during operation of the AM device to the waste container. The waste container stores waste accumulated by the AM device during operation of the AM device.
A method of printing a three-dimensional object, comprises: for each of a plurality of arrays of nozzles, activating a subset of nozzles of the array to dispense a respective building material from the subset, so as to form an interleaved scan pattern of dispensed materials. The method comprises hardening the interleaved scan pattern, and repeating the activating and the hardening to form a stack of hardened interleaved scan patterns.
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 support material formulation for use in additive manufacturing of a three-dimensional object, which, when hardened, is soluble upon immersion in water, is provided. The formulation includes a hydrophilic curable mono-functional material; a polyol (e.g., a branched polyol) having a molecular weight lower than 1,000, or lower than 800 grams/mol; and a polyester material having a molecular weight higher than 400, or higher than 500, grams/mol. Additive manufacturing using the disclosed formulation and objects made thereby are also provided.
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
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
C09D 11/10 - Encres d’imprimerie à base de résines artificielles
C09D 11/30 - Encres pour l'impression à jet d'encre
76.
METHOD OF LAYERWISE FABRICATION OF A THREE-DIMENSIONAL OBJECT
A method of layerwise fabrication of a three-dimensional object is disclosed. The method comprises, for each of at least a few of the layers: dispensing at least a first modeling formulation and a second modeling formulation to form a core region using both the first and the second modeling formulations, and at least one envelope region at least partially surrounding the core region using one of the first and the second modeling formulations but not the other one of the first and the second modeling formulations. The method can also comprise exposing the layer to curing energy. The first modeling formulation is characterized, when hardened, by heat deflection temperature (HDT) of at least 90° C., and the second modeling formulation is characterized, when hardened, by Izod impact resistance (IR) value of at least 45 J/m.
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 64/106 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux
B29C 64/291 - Agencements pour irradiation pour un fonctionnement dans un ensemble, p. ex. avec des activateurs ou des inhibiteurs sélectivement appliqués
B29C 35/08 - Chauffage ou durcissement, p. ex. réticulation ou vulcanisation utilisant l'énergie ondulatoire ou un rayonnement corpusculaire
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 11/30 - Encres pour l'impression à jet d'encre
B33Y 80/00 - Produits obtenus par fabrication additive
77.
DISPOSAL OF WATER SOLUBLE WASTE IN ADDITIVE MANUFACTURING
Method and kits for handling an aqueous waste solution or dispersion obtained upon removing a water-miscible support material from a three-dimensional object during additive manufacturing of the object, and additive manufacturing processes utilizing same are provided. The methods and kits utilize a super absorbent polymeric material to convert the liquid waste solution to a solid or semi-solid composition.
A curable formulation that provides, when hardened, an elastomeric material which is usable in additive manufacturing of a three-dimensional object is provided. The formulation is based on curable mono-functional and multi-functional elastomeric materials, in combination with a curable, multi-functional, non-elastomeric material and a curable material that comprises at least two hydrogen bond forming groups.
C08F 290/00 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères modifiés par introduction de groupes aliphatiques non saturés terminaux ou latéraux
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
79.
METHOD AND SYSTEM FOR EXTENDED THREE-DIMENSIONAL PRINTING
A system for three-dimensional printing comprises: a three-dimensional printing apparatus for printing an object using a building material supplied from a container, and a computer. The computer is configured to receive working hours of personnel operating the apparatus, to calculate, based on three-dimensional printing data describing the object, a supply period during which the container is expected to be emptied, and to transmit to the apparatus a signal to initiate the printing at a delayed time selected to ensure that an end time of the supply period is within the working hours.
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 64/171 - Procédés de fabrication additive spécialement adaptés à la fabrication d'objets multiples en 3D
B29C 64/241 - Moyens d’entraînement pour mouvement rotatif
B33Y 30/00 - Appareils pour la fabrication additiveLeurs parties constitutives ou accessoires à cet effet
G06F 3/12 - Sortie numérique vers une unité d'impression
G06Q 10/06 - Ressources, gestion de tâches, des ressources humaines ou de projetsPlanification d’entreprise ou d’organisationModélisation d’entreprise ou d’organisation
A method of processing data for additive manufacturing of a 3D object comprises: receiving graphic elements defining a surface of the object, and an input color texture to be visible over a surface of the object; transforming the elements to voxelized computer object data; constructing a 3D color map having a plurality of pixels, each being associated with a voxel and being categorized as either a topmost pixel or an internal pixel. Each topmost pixel is associated with a group of internal pixels forming a receptive field for the topmost pixel. A color-value is assigned to each topmost pixel and each internal pixel of a receptive field associated with the topmost pixel, based on the color texture and according to a subtractive color mixing. A material to be used during the additive manufacturing is designated based on the color-value.
G06T 7/529 - Récupération de la profondeur ou de la forme à partir de la texture
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 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
Provided are methods of fabricating an object, effected by jetting two or more different compositions, each containing a different material or mixture of materials, which, when contacted on a receiving medium, undergo a chemical reaction therebetween to form the building material. The chemical composition of the formed building material is dictated by a ratio of the number of voxels of each composition in a voxel block. Systems for executing the methods, and printed objects obtained thereby are also provided.
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
C09D 11/30 - Encres pour l'impression à jet d'encre
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
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
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B41J 2/01 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre
82.
METHOD FOR ADDITIVE MANUFACTURING WITH PARTIAL CURING
A method of additive manufacturing (AM) includes dispensing a first building material formulation to form an outer region, and dispensing a second building material formulation to form an inner region, the outer region surrounding the inner region, the inner and outer regions being shaped to form a layer of the object; exposing the layer to a first curing condition, repeating the dispensing and the exposing to sequentially form a plurality of layers of the object and collectively exposing the plurality of layers to a second curing condition. The selections are such that the first building material formulation is hardened to a higher degree than the second building formulation. The outer regions form a hardened coating that at least partially encapsulates the inner regions. The second curing condition is other than the first curing condition and is selected to increase the degree that the inner region is hardened.
B29C 64/40 - Structures de support des objets en 3D pendant la fabrication, lesdites structures devant être sacrifiées après réalisation de la fabrication
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 35/08 - Chauffage ou durcissement, p. ex. réticulation ou vulcanisation utilisant l'énergie ondulatoire ou un rayonnement corpusculaire
83.
Method and system for additive manufacturing using closed-loop temperature control
A system for additive manufacturing comprises a dispensing head for dispensing building materials on a working surface, a hardening system for hardening the building materials, a cooling system for evacuating heat away from the building materials, and a computerized controller. A thermal sensing system is mounted above the working surface in a manner that allows relative motion between the sensing system and the working surface, and is configured to generate sensing signals responsively to thermal energy sensed thereby. The controller controls the dispensing head to dispense the building materials in layers, the sensing system to generate the sensing signals only when the sensing system is above the building materials once hardened, and the heat evacuation rate of the cooling system responsively to the sensing signals.
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B28B 1/00 - Fabrication d'objets façonnés à partir du matériau
B28B 17/00 - Parties constitutives ou accessoires de l'appareillage à façonner le matériauMesures auxiliaires prises en liaison avec un tel façonnage
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 method for 3D color printing of an object includes slicing a 3D model of the object, adding color data to slices of the 3D model and printing the slices with a printing block (50) including a plurality of channels. The plurality of channels include channels, each with different colored building material, and a channel with a clear building material. Printing includes dispensing at each target location of a travel of the printing block (50), building material from two channels of the plurality of channels. The two channels per target location are selected based on the color data.
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 printing system (400) comprises an inkjet printing head (16) having a plurality of nozzles (122), and a container (430) containing a liquid material (432) and being in fluid communication with the head by a conduit (440) for feeding the head with the liquid material. The printing system also comprises a pressure sensor (442) configured to generate a signal indicative of a pressure at an outlet of the conduit, and a controller (420) configured to control the head to dispense through the nozzles liquid material received via the conduit, and to calculate one or more jetting characteristics based on the pressure.
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
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
87.
SYSTEM AND METHOD FOR SELECTION OF A PRINT HEAD OF A THREE-DIMENSIONAL PRINTER
A method for selection of a print head of a three-dimensional (3D) printer includes receiving a model data element having first and second 3D shells, producing an ordered set of slice data elements corresponding to a planar slice of the 3D model, determining an overlapping region of the first and second 3D shells, attributing a property vector value (such as a colorization vector value or a printing material vector value) based on an overlap rule, and selecting a printing head based on the property vector value. A 3D printing system comprises printing heads that can be selected according to the method.
Methods and systems are disclosed for selecting a print head of a 3D printing machine to apply 3D printing material at one or more positions in a printed 3D object. Embodiments of the present invention may include, in the selection process one or more elements pertaining for example to: geometry of the received 3D model; colorization of the received 3D model; transparency of the received 3D model; properties of the 3D printing material; and constraints of the 3D printing machine.
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
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 method of additive manufacturing of a three-dimensional object is disclosed. The method comprises sequentially forming a plurality of layers each patterned according to the shape of a cross section of the object. In some embodiments, the formation of at least one of the layers comprises performing a raster scan to dispense at least a first building material composition, and a vector scan to dispense at least a second building material composition. The vector scan is optionally along a path selected to form at least one structure selected from the group consisting of (i) an elongated structure, (ii) a boundary structure at least partially surrounding an area filled with the first building material, and (iii) an inter-layer connecting structure.
B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
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 64/165 - Procédés de fabrication additive utilisant une combinaison de matériaux solides et liquides, p. ex. une poudre avec liaison sélective par liant liquide, catalyseur, inhibiteur ou absorbeur d’énergie
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
B33Y 30/00 - Appareils pour la fabrication additiveLeurs parties constitutives ou accessoires à cet effet
B29C 35/08 - Chauffage ou durcissement, p. ex. réticulation ou vulcanisation utilisant l'énergie ondulatoire ou un rayonnement corpusculaire
H05K 1/16 - Circuits imprimés comprenant des composants électriques imprimés incorporés, p. ex. une résistance, un condensateur, une inductance imprimés
H05K 3/12 - Appareils ou procédés pour la fabrication de circuits imprimés dans lesquels le matériau conducteur est appliqué au support isolant de manière à former le parcours conducteur recherché utilisant la technique de l'impression pour appliquer le matériau conducteur
B33Y 80/00 - Produits obtenus par fabrication additive
H05K 1/09 - Emploi de matériaux pour réaliser le parcours métallique
B29L 31/34 - Appareils électriques, p. ex. bougies ou leurs parties constitutives
90.
METHOD AND SYSTEM FOR MONITORING AMOUNT OF SUPPLY MATERIAL IN ADDITIVE MANUFACTURING
A method of monitoring an amount of building material in a cartridge that supplies the material to an additive manufacturing system, comprises introducing gas into the cartridge and measuring the pressure within the cartridge. When the pressure reaches a predetermined level, the amount of building material in the cartridge is determined based on a volume of gas introduced into the cartridge or based on a proxy of the volume.
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
G01F 23/14 - Indication ou mesure du niveau des liquides ou des matériaux solides fluents, p. ex. indication en fonction du volume ou indication au moyen d'un signal d'alarme par mesurage de la pression
B33Y 30/00 - Appareils pour la fabrication additiveLeurs parties constitutives ou accessoires à cet effet
B33Y 50/00 - Acquisition ou traitement de données pour la fabrication additive
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 64/259 - Enceintes pour le matériau de construction, p. ex. récipients pour poudre interchangeables
91.
SYSTEMS AND METHODS FOR CALCULATING A TIME DURATION AND AN AMOUNT OF MATERIAL REQUIRED FOR PRINTING A THREE-DIMENSIONAL OBJECT
Systems and methods for calculating a time duration and an amount of material consumption required for printing a tray of one or more three-dimensional objects using a three-dimensional printing system are disclosed.
Systems and methods for predefining at least one support structure for at least one three-dimensional object for printing thereof using a three-dimensional printing system are disclosed. Default support structures are replaced by improved support structures or not depending on the result of an assessment, based on predefined rules of the body region in the slice that needs support.
B29C 64/40 - Structures de support des objets en 3D pendant la fabrication, lesdites structures devant être sacrifiées après réalisation de la fabrication
B29C 64/386 - Acquisition ou traitement de données pour la fabrication additive
B33Y 50/00 - Acquisition ou traitement de données pour la fabrication additive
G05B 19/4099 - Usinage de surface ou de courbe, fabrication d'objets en trois dimensions 3D, p. ex. fabrication assistée par ordinateur
93.
Method for preserving shape of an object during sintering
A method for preserving the shape of an object during sintering includes filling at least one volume defined by a surface of the object with a plurality of balls, sintering the object together with the balls and separating the object from the balls post sintering. The balls have a diameter of 0.5 mm-12 mm.
A waste curing device to cure waste generated by an additive manufacturing system, the waste curing device comprising: a container for receiving the waste; a movable cover positioned above the container; one or more waste nozzles mounted on the moveable cover and configured to deliver waste into the container; a static cover positioned above the container and below the movable cover; one or more curing sources mounted on the static cover and configured to provide curing radiation to cure the waste in the container; wherein the movable cover is configured to move relative to the static cover to provide an open position for the waste nozzles to deliver waste into the container, and subsequently to a closed position, to shield the waste nozzles from curing radiation.
A method for sintering objects formed with aluminum powder includes forming a shape of an object with aluminum powder, selecting a sintering atmosphere and sintering the object in the sintering atmosphere. The sintering atmosphere includes Nitrogen and one or more of Argon and partial vacuum. The selection is based on a desired balance of degree of shrinkage and mechanical properties to be achieved.
Methods of fabricating three-dimensional rubber-like objects which utilize one or more modeling material formulations which comprise an elastomeric curable material and silica particles are provided. Objects made of the modeling material formulations and featuring improved mechanical properties are also provided.
B29C 64/165 - Procédés de fabrication additive utilisant une combinaison de matériaux solides et liquides, p. ex. une poudre avec liaison sélective par liant liquide, catalyseur, inhibiteur ou absorbeur d’énergie
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
Modeling material formulations usable for forming a polyurea material in additive manufacturing, and methods for additive manufacturing of three-dimensional objects made of these formulations are provided. The modeling material formulation comprises at least one isocyanate-containing material and at least one amine-containing material such that at least one isocyanate-containing material comprises at least one polyisocyanate material and at least one amine-containing material comprises at least one aromatic polyamine material.
B33Y 80/00 - Produits obtenus par fabrication additive
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
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
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
An additive manufacturing method for printing an object includes receiving three-dimensional printing data corresponding to the object, defining an internal region of the object to be formed with a structured air pocket and printing the object with an additive manufacturing system. The object includes an internal region formed with a structured air pocket.
B29C 64/371 - Conditionnement de l’environnement en utilisant un environnement autre que l’air, p. ex. un gaz inerte
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 method of fabricating an object in layers, comprises, for at least one layer: dispensing a building material formulation to form a first portion of the layer, and leveling the first portion by a leveling device; increasing a vertical distance between the first portion and the leveling device; and while a topmost surface of the first portion is exposed and beneath a segment of the leveling device: dispensing a building material formulation to form a second portion of the layer, laterally displaced from the first portion along an indexing direction, and leveling the second portion by the leveling device.
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 64/194 - Procédés de fabrication additive impliquant des opérations supplémentaires effectuées sur les couches ajoutées, p. ex. lissage, meulage ou contrôle d’épaisseur pendant l’empilage des couches
B29C 64/241 - Moyens d’entraînement pour mouvement rotatif
Formulations usable in additive manufacturing such as 3D inkjet printing which provide a transparent material when hardened, are provided. The formulation are designed so as to provide transparent objects or parts thereof with improved transmittance and color properties such as yellowness index, compared to commercially available formulations. The formulations comprise a photoinitiator at a relatively low amount and designed mixture of curable materials.
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 64/112 - 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
B33Y 40/20 - Posttraitement, p. ex. durcissement, revêtement ou polissage
B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
C08F 2/50 - Polymérisation amorcée par énergie ondulatoire ou par rayonnement corpusculaire par la lumière ultraviolette ou visible avec des agents sensibilisants
C08F 220/18 - Esters des alcools ou des phénols monohydriques des phénols ou des alcools contenant plusieurs atomes de carbone avec l'acide acrylique ou l'acide méthacrylique
