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.
C09D 133/10 - Homopolymers or copolymers of methacrylic acid esters
B29C 64/129 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
B29K 33/00 - Use of polymers of unsaturated acids or derivatives thereof, as moulding material
B29K 83/00 - Use of polymers having silicon, with or without sulfur, nitrogen, oxygen or carbon only, in the main chain, as moulding material
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 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B33Y 50/00 - Data acquisition or data processing for additive manufacturing
B33Y 70/00 - Materials specially adapted for additive manufacturing
3.
METHOD OF GENERATING CONTROL DATA FOR A PRINTER DEVICE, METHOD OF CONTROLLING A PRINTER DEVICE, CONTROL DEVICE, PRINTER DEVICE, COMPUTER PROGRAM PRODUCT AND COMPUTER-READABLE STORAGE MEDIUM
A method of generating control data for a printer device to generate a phantom object of a source object, comprises: receiving a parameter map of the source object, the parameter map including input voxels, each input voxel being assigned a respective input parameter value; generating a parameter map of the phantom object based on the parameter map of the source object, the parameter map of the phantom object including output voxels, each output voxel being assigned a respective output parameter value; generating a printing map of the phantom object, the printing map of the phantom object including the output voxels, each output voxel being assigned a respective printing material to be applied by the printer device; and generating control data for the printer device to print the phantom object using the printing materials according to the printing map.
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.
C08F 283/12 - Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass on to polysiloxanes
B29C 64/129 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
B29K 83/00 - Use of polymers having silicon, with or without sulfur, nitrogen, oxygen or carbon only, in the main chain, as moulding material
B29K 105/00 - Condition, form or state of moulded material
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.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/40 - Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
B29K 105/00 - Condition, form or state of moulded material
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.
C09D 133/14 - Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B29K 33/00 - Use of polymers of unsaturated acids or derivatives thereof, as moulding material
B29K 105/08 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
B33Y 40/20 - Post-treatment, e.g. curing, coating or polishing
B33Y 70/00 - Materials specially adapted for additive manufacturing
C08F 220/30 - Esters containing oxygen in addition to the carboxy oxygen containing aromatic rings in the alcohol moiety
C09D 4/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond
C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes
7.
FORMULATIONS FOR THREE-DIMENSIONAL PRINTING ON FABRIC
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.
C09D 133/14 - Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B29K 33/00 - Use of polymers of unsaturated acids or derivatives thereof, as moulding material
B29K 75/00 - Use of polyureas or polyurethanes as moulding material
B29K 105/00 - Condition, form or state of moulded material
C09D 4/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond
A waste collecting system comprises a bath for collecting liquid waste from the leveling device, a bath cover covering the bath, and a waste removal pipe sealingly passing through the cover and being configured to generate under-pressure in an interior of the bath 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 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/188 - Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
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.
C09D 4/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond
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 and curing a first formulation along a scanning direction. The method also comprises printing the object onto the stack by dispensing and curing 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 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B29C 64/291 - Arrangements for irradiation for operating globally, e.g. together with selectively applied activators or inhibitors
B29C 64/386 - Data acquisition or data processing for additive manufacturing
Modeling material formulation systems usable in additive manufacturing, 3D inkjet printing in particular, of three-dimensional objects, are provided. The formulations comprise two or more curable materials, such that an average molecular weight of the curable materials in each formulation is no more than 500 grams/mol, such that each formulation features a viscosity of no more than 50 centipoises at a temperature of 35° C. Kits comprising the formulations or formulation systems and additive manufacturing processes utilizing same are also provided.
C08F 220/20 - Esters of polyhydric alcohols or phenols
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29K 71/00 - Use of polyethers as moulding material
B29K 105/00 - Condition, form or state of moulded material
Formulations and methods employing these formulation for fabricating an object by additive manufacturing, such as three-dimensional inkjet printing are provided. The formulations comprise at least 50 weight percents of hydrophilic curable materials, and upon curing, provide a material that is characterized by water absorbance of at least 5%, and by high HIDT and impact resistance values. Objects containing cured material made of these formulations are also provided.
B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B29C 64/129 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
B33Y 70/00 - Materials specially adapted for additive manufacturing
C09D 4/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond
C09D 11/101 - Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
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 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 64/268 - Arrangements for irradiation using laser beamsArrangements for irradiation using electron beams [EB]
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
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.
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B29K 33/00 - Use of polymers of unsaturated acids or derivatives thereof, as moulding material
B29K 105/00 - Condition, form or state of moulded material
B33Y 70/00 - Materials specially adapted for additive manufacturing
B33Y 80/00 - Products made by additive manufacturing
C09D 11/037 - Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
C09D 11/107 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
17.
SYSTEM FOR IMPROVING SAFETY IN THREE-DIMENSIONAL PRINTING
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 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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.
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 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B29C 64/194 - Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control during lay-up
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.
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B41J 3/407 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
21.
METHOD OF PRINTING A THREE-DIMENSIONAL OBJECT COMPRISING A PLURALITY OF DISCRETE ELEMENTS
A method of printing a 3D object comprising plurality of discrete elements, including: 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 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 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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.
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 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B29C 64/20 - Apparatus for additive manufacturingDetails thereof or accessories therefor
A formulation usable as a modeling material formulation in additive manufacturing of a three-dimensional object and additive manufacturing methods utilizing same are provided. The formulation comprises one or more curable materials; and a radiopaque material, and features, when hardened, a CT number of at least 100 HU at 70 kV. Objects made by the additive manufacturing method utilizing the formulation are usable as radiological phantoms.
A61B 6/58 - Testing, adjusting or calibrating thereof
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
A method for physically reconstructing a body part using multi-material additive manufacturing includes receiving image data of the body part in the form of arrays of voxels, each array of voxels representing image data pertaining to cross-section of the body part, translating the image data in the arrays of voxels to printable bitmap images representing combinations of modeling materials for reconstructing the body part, and dispensing the combinations of modeling materials responsive to the bitmap images in a layerwise manner.
A61B 5/055 - Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fieldsMeasuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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 - Data acquisition or data processing for additive manufacturing
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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 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 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
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 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
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.
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B29K 33/00 - Use of polymers of unsaturated acids or derivatives thereof, as moulding material
B29K 105/00 - Condition, form or state of moulded material
B33Y 70/00 - Materials specially adapted for additive manufacturing
B33Y 80/00 - Products made by additive manufacturing
C09D 11/037 - Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
C09D 11/107 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
36.
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 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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.
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 for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B29K 67/00 - Use of polyesters as moulding material
B29K 105/00 - Condition, form or state of moulded material
B33Y 70/00 - Materials specially adapted for additive manufacturing
C09D 11/101 - Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
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.
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.
B33Y 40/20 - Post-treatment, e.g. curing, coating or polishing
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
43.
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 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B29C 64/20 - Apparatus for additive manufacturingDetails thereof or accessories therefor
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 for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B33Y 40/20 - Post-treatment, e.g. curing, coating or polishing
B33Y 70/00 - Materials specially adapted for additive manufacturing
B33Y 80/00 - Products made by additive manufacturing
C08F 2/48 - Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
C08F 220/28 - Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
C08F 283/06 - Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass on to polyethers, polyoxymethylenes or polyacetals
G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfacesMaterials therefor, e.g. comprising photoresistsApparatus specially adapted therefor
G03F 7/027 - Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
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 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B29B 13/02 - Conditioning or physical treatment of the material to be shaped by heating
B29C 35/02 - Heating or curing, e.g. crosslinking or vulcanising
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 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/00 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B29C 64/386 - Data acquisition or data processing for additive manufacturing
G05B 19/4099 - Surface or curve machining, making 3D objects, e.g. desktop manufacturing
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
G06F 30/20 - Design optimisation, verification or simulation
G06T 19/20 - Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts
51.
METHOD AND SYSTEM FOR FABRICATING OBJECT FEATURING PROPERTIES OF A BLOOD VESSEL
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 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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 - Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
B29C 71/04 - After-treatment of articles without altering their shapeApparatus therefor by wave energy or particle radiation
53.
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 64/40 - Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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 - Serial processing with multiple devices grouped
B29C 64/165 - Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
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.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/40 - Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
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 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
60.
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.
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 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B33Y 70/00 - Materials specially adapted for additive manufacturing
C08L 79/04 - Polycondensates having nitrogen-containing heterocyclic rings in the main chainPolyhydrazidesPolyamide acids or similar polyimide precursors
C09D 11/101 - Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
C09D 11/38 - Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
63.
System and method for printing a three-dimensional object using a modified mesh file
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 for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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 - Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B33Y 70/00 - Materials specially adapted for additive manufacturing
C08G 61/08 - Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms prepared by ring-opening of carbocyclic compounds of carbocyclic compounds containing one or more carbon-to-carbon double bonds in the ring
C08K 3/013 - Fillers, pigments or reinforcing additives
C09D 11/101 - Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B29C 64/194 - Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control during lay-up
B33Y 70/00 - Materials specially adapted for additive manufacturing
B33Y 80/00 - Products made by additive manufacturing
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 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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.
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.
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 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B29C 64/188 - Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
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 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 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.
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 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B29C 64/106 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
B29C 64/291 - Arrangements for irradiation for operating globally, e.g. together with selectively applied activators or inhibitors
B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation
C09D 11/101 - Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
C09D 11/107 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
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.
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
C09D 11/101 - Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
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.
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 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B28B 1/00 - Producing shaped articles from the material
B28B 17/00 - Details of, or accessories for, apparatus for shaping the materialAuxiliary measures taken in connection with such shaping
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/106 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
B29C 64/165 - Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation
H05K 1/16 - Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
H05K 3/12 - Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using printing techniques to apply the conductive material
B33Y 80/00 - Products made by additive manufacturing
H05K 1/09 - Use of materials for the metallic pattern
B29L 31/34 - Electrical apparatus, e.g. sparking plugs or parts thereof
86.
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 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B29C 64/259 - Enclosures for the building material, e.g. powder containers interchangeable
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B33Y 50/00 - Data acquisition or data processing for additive manufacturing
G01F 23/14 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
87.
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 printing time duration and an amount of material consumption required for one or more materials required for printing a tray arrangement including one or more 3D objects using a 3D printing system, including: receiving a 3D model of a tray arrangement including one or more 3D objects to be printed using a 3D printing system; and generating, based on the 3D model, a 3D digital dataset comprising a plurality of data elements arranged in a set of horizontal slices, wherein a slicing resolution of the 3D digital dataset is lower than a printing resolution of the 3D printing system.
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.
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 - Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
B29C 64/106 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
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 - Products made by additive manufacturing
B33Y 70/00 - Materials specially adapted for additive manufacturing
C09D 11/38 - Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
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 - Conditioning of environment using an environment other than air, e.g. inert gas
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B29C 64/194 - Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control during lay-up
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 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B33Y 40/20 - Post-treatment, e.g. curing, coating or polishing
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B33Y 70/00 - Materials specially adapted for additive manufacturing
C08F 2/50 - Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
C08F 220/18 - Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
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 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B33Y 70/00 - Materials specially adapted for additive manufacturing
C09D 11/38 - Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
C08L 79/04 - Polycondensates having nitrogen-containing heterocyclic rings in the main chainPolyhydrazidesPolyamide acids or similar polyimide precursors
C09D 11/101 - Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
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 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
A method of layerwise solid freeform fabrication is disclosed. The method comprises, for each of at least a few of the layers, dispensing and hardening at least a first modeling material and a second modeling material to form a core region and one or more envelope regions at least partially surrounding the core region. In some embodiments, the ratio between the elastic moduli of adjacent regions, when hardened, is from about 1 to about 20.
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
patents
