Abstract: According to an example, a three-dimensional (3D) printer may include a first delivery device to selectively deposit first liquid droplets onto a layer of build materials, in which the first liquid has a fusing radiation absorption property. The 3D printer may also include a fusing radiation generator to selectively emit fusing radiation at multiple ranges of wavelengths and at selected locations to selectively fuse the build materials and a controller to tune a range of wavelengths at which the fusing radiation generator is to emit fusing radiation based upon the fusing radiation absorbing property of the deposited first liquid, to determine the selected locations at which the fusing radiation at the tuned range of wavelengths is to be emitted, and to control the fusing radiation generator to selectively emit fusing radiation at the tuned range of wavelengths and onto the selected locations.

Abstract: The present invention provides an imprint apparatus that molds an imprint material on a shot region of a substrate by using a mold, comprising a detection unit configured to detect first light with which a first mark of the mold and a second mark of the substrate are irradiated and measure a position deviation between the first mark and the second mark, a heating unit configured to irradiate the substrate with second light for heating the substrate and deforming the shot region, and a control unit configured to control alignment between the mold and the substrate based on the position deviation, wherein a parameter of the detection unit or the heating unit is set not to detect the second light by the detection unit while the first light is detected and the substrate is irradiated with the second light.

Abstract: Portable measuring unit (1) for performing a measuring process for an apparatus for additively manufacturing of three-dimensional objects by means of successive layerwise selective irradiation and consolidation of layers of a build material which can be consolidated by means of an energy beam, with a holding unit (2) configured for holding an image detection unit (3) in a position relative to a sample, wherein the image detection unit (3) is configured to measure an irradiation pattern of the sample (10) previously irradiated by the apparatus, wherein the portable measuring unit (1) is arbitrarily assignable to the or an apparatus.

Abstract: Three-dimensional fabrication resources are improved by adding networking capabilities to three-dimensional printers and providing a variety of tools for networked use of three-dimensional printers. Web-based servers or the like can provide a single point of access for remote users to manage access to distributed content on one hand, and to manage use of distributed fabrication resources on the other.

Abstract: Spacecraft including a spacecraft bus. An additive manufacturing system of the spacecraft bus including at least one extruder for delivering feedstock to print an object outside of the spacecraft bus. A sensor for determining a pose of the spacecraft bus relative to an astronomical body. At least one processor in communication with the additive manufacturing system and the sensor, controls an operation of the additive manufacturing system as a function of the pose of the spacecraft bus, to manufacture the object outside of the spacecraft bus.

Abstract: An HVAC controller includes a touch-responsive display and a scheduling grid having one or more rows representing a 24 hour period of a day-of-week. A user selects an operation to be performed such as adding or deleting a scheduled event, such as a period of occupancy or non-occupancy. A visual representation of the available operations and the temporal regions subject to the available operations is presented. A user may then select the desired region on which to perform the operation, the operation is visually represented on the touch-responsive display, and the user indicates whether the operation should be saved or discarded. The operation may be applied to additional remote HVAC devices in a single operation.

Abstract: A solidification substrate assembly for making a three-dimensional object from a solidifiable material includes a solidification substrate assembly. In certain examples, the solidifiable material solidifies in contact with the solidification substrate, and the tilting of the substrate and/or or the use of a peeling member facilitates separation of the substrate from the solidified material. In other examples, the solidification substrate assembly includes a film that is adjacent to a rigid or semi-rigid layer. The solidifiable material solidifies in contact with the film, and a peeling member peels the film away from the solidified material. Intelligent solidification substrate assemblies are also described in which a force sensor determines when to expose the solidifiable material to solidification energy and/or whether to use a peeling member to separate the solidification substrate from a solidified objection section.

Abstract: An apparatus for texturing or patterning discrete substrates by imprinting a curable lacquer with a discrete flexible stamp and curing the imprinted lacquer resulting in an additional functional textured layer on a discrete substrate is provided having at least a first and a second clamp, a first roller and at least one driven belt connected with the first clamp and with the second clamp and capable of moving the clamped flexible stamp wherein either the roller is not able to cause its own rotation, but is driven by the stamp which in turn is driven by the belt which in turn is driven by a belt driving device, or the roller is driven at the same speed as the belt by a roller driving device which follows the belt driving device in a master slave configuration.

Abstract: A system for additively manufacturing a composite part is disclosed. The system may include a vat configured to hold a supply of resin, and a build surface disposed inside the vat. The system may also include a print head configured to discharge a matrix-coated continuous reinforcement onto the build surface, and an energy source configured to expose resin on a surface of the matrix-coated continuous reinforcement to a cure energy.

Abstract: A photoreactive additive manufacturing system comprises a resin tub, a membrane, and a resin pool confined by the resin tub and the membrane. In some embodiments, the membrane comprises a polymeric blend comprising a first polymer and a second polymer, and the first polymer is a fluoropolymer. In some embodiments, the membrane comprises a polymer and an additive to control the free volume of the polymer.

Abstract: The present disclosure generally relates to methods and apparatuses for additive manufacturing using foil-based build materials. Such methods and apparatuses eliminate several drawbacks of conventional powder-based methods, including powder handling, recoater jams, and health risks. In addition, the present disclosure provides methods and apparatuses for compensation of in-process warping of build plates and foil-based build materials, in-process monitoring, and closed loop control.

Abstract: A method for fabricating a composite object with a computer-controlled apparatus, and the apparatus therefor. The comprises a reservoir containing liquid, curable first material, means to selectively solidify the first material and means to selectively deposit a second material. The method involves the steps of selectively depositing portions of the second material, and selectively solidifying portions of the first material, such that the solidified portions of the first material and the deposited portions of the second material form the composite object.

Abstract: A system for printing a three-dimensional object is provided. The system can include at least one print head configured to receive a continuous fiber and at least partially encase the continuous fiber with a formation material to create a composite material. The at least one print bed can be configured to move in at least six different degrees of freedom. The system can also include at least one print bed comprising a printing surface onto which the composite material may be selectively applied to form a work piece. The at least one print head can be positioned relative to the at least one print bed and configured to advance print media thereon.

Abstract: An additive manufacturing system, and associated methods, comprise an image projection system comprising a plurality of image projectors that project a composite image onto a build area within a resin pool. The composite image comprises a plurality of sub-images arranged in an array. The properties of each sub-image and the alignment of the position of each sub image within the composite image can be adjusted using a stack of filters comprising: 1) an irradiance mask that normalizes irradiance, 2) a gamma adjustment mask that adjusts sub-image energy based on a reactivity of the resin, 3) a warp correction filter that provides geometric correction, and 4) an edge blending bar at one or more sub-image edges.

Abstract: Apparatus (1) for additively producing three-dimensional objects (2) by successive layer-by-layer selective exposure and, accompanying this, successive layer-by-layer selective solidification of construction material layers made of a construction material (3) that can be solidified by means of an energy beam (4), including an exposure device (6) which is configured to produce an energy beam (4) for successive layer-by-layer selective exposure and, accompanying this, successive layer-by-layer selective solidification of construction material layers made of a construction material (3) that can be solidified by means of the energy beam (4), a measuring device (13) that is assignable or assigned to the exposure device (6) and configured to measure the power of the energy beam (4) that is produced by the exposure device (6), wherein the measuring device (13) comprises a measuring element (15) that comprises an energy beam input face (16), and at least an energy beam widening device (17).

Abstract: The disclosure provides a three-dimensional (3D) printing device including a tank, a forming stage and an irradiation unit. The tank is filled with a liquid forming material. The forming stage is movably disposed at the tank. The irradiation unit is disposed beside the tank and includes an image source and a projecting lens. The image source is used to emit an image beam. The image beam passes through the projecting lens to irradiate and cure the liquid forming material. An entrance pupil position of the projecting lens is ENP and 2000 mm?ENP?15000 mm. An exit pupil position of the projecting lens is EXP and 2000 mm?|EXP|?15000 mm.

Abstract: In an example, a method includes forming, at an additive manufacturing apparatus, a first layer of build material to be processed in the generation of an object. A print agent is selectively applied onto the first layer based on a first print instruction associated with the first layer. Energy is applied to the first layer to cause fusion in a region of the first layer. The method further comprises: measuring the temperature of the first layer at a plurality of locations to form a measured temperature distribution profile; comparing the measured temperature distribution profile against a predicted temperature distribution profile to generate a difference; and correcting a temperature distribution profile of a subsequent layer of the build material following fusion of the subsequent layer based on the difference by modifying a second print instruction associated with the subsequent layer.

Abstract: An apparatus for fabricating a 3D object. The apparatus may be comprised of a charged powder transferring system, a first charged powder layer generating device, a second charged powder layer generating device, a powder layer consolidation station, and an object build platform. In operation of the apparatus, a portion of a powder transferring surface of the flexible web traverses a directional change member during cyclic motion, and exceeds a radius of curvature defining a delamination threshold between the powder transferring surface and a first fused slice of the object. The apparatus may include an oven operable to fuse a stack of delaminated fused slices on a support substrate into a fused stack comprising fused second powder material and fused first powder material forming at least a portion of the object. A method of fabricating a 3D object is also disclosed.

Abstract: Systems and methods for dicing a sample by a Bessel beam matrix are disclosed. The method for dicing a sample by a Bessel beam matrix may comprise generating a Bessel beam matrix including multiple Bessel beams arranged in a matrix form, according to a predetermined dicing layout of the sample; controlling a focus position of each Bessel beam in the generated Bessel beam matrix; and focusing simultaneously the Bessel beams of the Bessel beam matrix at the respective controlled focus positions within the sample for dicing.

Abstract: In an electric vulcanization system, a temperature of a heating medium in a fluid-tight enclosure is detected and adjusted during a current curing cycle.

Abstract: In an electric vulcanization process, open loop and closed loop control modes can be used for controlling a heater output.

Abstract: A stereolithography 3D printer (10) includes: a transporting mechanism (1) having a translucent conveyor belt (11) with its top divided into a discharge area (13) and a receiving area (14); a discharging mechanism (2) installed in the discharge area (13) and including a first material box (21) and a discharge nozzle (22) corresponsive to the first material box (21), and the first material box (21) having a discharge port (211); and a recycling mechanism (3) installed in the receiving area (14) and including a second material box (31) and a receiving sucker tip (32), and the first material box (21) and second material box (31) being disposed adjacent or attached to the translucent conveyor belt (11), and the receiving sucker tip (32) being corresponsive to the second material box (31), and the second material box (31) having a receiving port (311).

Abstract: The invention relates to a powder module (1) for an apparatus for additive manufacturing of three-dimensional objects, comprising: a powder chamber (2) limiting a powder room (3) that can be filled with powdered construction material, a carrying device (4) arranged in the powder room (3), limiting the powder room (3) at the bottom and movably supported relative to the powder chamber (2), and a drive device (5) for generating a force setting the carrying device (4) in motion relative to the powder chamber (2), wherein the drive device (5) comprises at least two separate adjustment units (6a, 6b), that especially are coupled for movement, with at least one, especially cylindrical, adjustment element (7a, 7b), wherein each adjustment element (7a, 7b) is movably supported relative to a respective housing element (8a, 8b) of the respective adjustment unit (6a, 6b) between a first end position and a second end position.

Abstract: The present invention discloses a 3D printing apparatus and method of using a single-printhead to achieve multi-material and multi-scale printing. The apparatus comprises a base, a worktable, a wafer stage, a substrate, a power source, a printhead, and a support. The printhead is provided with a plurality of material inlets, each of which is connected to a different micro-feeding pump; and multiple materials are thoroughly mixed under the action of an agitator after being fed into the printhead, thereby achieving multi-material printing. In the present invention, a macroscopic geometrical shape of a printed object, microstructures in the interior and on the surface of the object are reasonably controlled, and integrated manufacturing of multi-scale structures is achieved.

Abstract: The invention concerns a method for producing a three-dimensional object, in particular an artificial tooth, by stereolithography wherein a liquid photocurable resin composition is cured by light. Said photocurable resin composition contains, based on the total weight of the photocurable resin composition, (i) from 90 to 99.9% by weight of a radical polymerizable organic compound (A) selected from radical polymerizable monomers, oligomers, pre-polymers and mixtures thereof; and (ii) from 0.1 to 10% by weight of a photosensitive radical polymerization initiator (B). Said radical polymerizable organic compound (A) comprises, based on the weight of the radical polymerizable organic compound (A), from 0.

Abstract: A process for manufacturing a three-dimensional object from a powder by selective sintering the powder using electromagnetic radiation. The powder includes recycled PAEK. In one embodiment, the powder includes recycled PEKK. In one embodiment, the powder includes first recycle PEKK and second recycle PEKK. In one embodiment, the powder consists essentially of recycled PEKK. The process may include the step of maintaining a bed of a selective laser sintering machine at approximately 300 degrees Celsius and applying a layer of the powder to the bed. The average in-plane tensile strength of the three-dimensional object is greater than that of a three-dimension object manufactured by selective sintering using a powder including an unused PEKK powder.

Abstract: A gas collecting mechanism installed in the laminating and shaping apparatus has a partition section extending from a ceiling section of the chamber along a second wall surface with a predetermined interval therebetween, a first gas collecting port formed in the partition section, a suction apparatus installed in the first gas collecting port, a first gas guide space section formed between the partition section and the second wall surface, a first duct communicating with the first gas guide space section and installed on the ceiling section, a second gas collecting port formed on the ceiling section adjacent to the second wall surface, and a second duct communicating with the second gas collecting port.

Abstract: A three dimensional (3D) printer and method for dispensing a material to form a 3D substructure and for dispensing an adhesive onto the 3D substructure. The adhesive printed onto the 3D substructure may be used to attach the 3D substructure to another substructure such as a conventionally formed substructure or another 3D printed substructure. Printing the adhesive using the 3D printer during the same 3D manufacturing process used to print the 3D substructure may improve precision of the location at which the adhesive is dispensed, thereby improving the quality of superstructure created by joining the substructures. An embodiment of the present teachings may decrease the overall time and cost to attach substructures.

Abstract: The invention relates to a method and a production line (10) for making tangible products by layerwise manufacturing. Layers of a uniform thickness are deposited on top of each other and solidified in a pattern that corresponds to a cross section of the product. The method and production line are in particular suited for making mutually different products out of powders of construction material. The construction material is deposited on the different building platforms (11,12) individually by a deposition head (13). A surplus of material is removed by a remover (14), preferably before the layer is solidified (15). This allows that the quantity of material can be adapted to the specific product on each building platform. The production line further comprises a platform conveyor (16) for conveying the towards and away from the deposition head repeatedly.

Abstract: The present disclosure generally relates to methods for additive manufacturing (AM) that utilize support leading edge structures in the process of building objects, as well as novel leading edge support structures to be used within these AM processes. The support structure is positioned adjacent the object between the object and a first side of the powder bed. The support structure has a shape that tapers outward in the direction from the first side to the object.

Abstract: An imaging system for a three-dimensional printer includes a light source component, at least one pattern determining element, a light splitter, a light directing component, and a lens component. The light source component emits a first light and a second light having different wavelengths. The pattern determining element provides the first light and the second light with a first pattern and a second pattern respectively. The light splitter directs the first light and the second light to different directions respectively. The light directing component guides at least one of the first light and the second light, such that the first light and the second light go to a first plane and a second plane respectively. The lens component includes a first lens group and a second lens group, configured to image the first pattern and the second pattern onto the first plane and the second plane respectively.

Abstract: A three-dimensional printing apparatus and a method of compensating a coordinate offset of a nozzle are provided. The method includes the following. A first nozzle and a second nozzle are controlled to print a testing three-dimensional object on a platform according to a calibration model. The testing three-dimensional object includes a plurality of correlation structures respectively corresponding to a plurality of compensation parameters, and each correlation structure includes a first sub-structure and a second sub-structure. The first sub-structure is formed of a first forming material, and the second sub-structure is formed of a second forming material. Through observing a joint level between the first sub-structure and the second sub-structure of each correlation structure, a best correlation structure, which is used for performing compensation on a printing coordinate of the first nozzle or the second nozzle, is selected from the correlation structures.

Abstract: The invention provides a machine for grinding a work-piece using a grinding tool. The machine comprises a motor for rotating a spindle having a work-piece holder for holding the work-piece. The machine further provides a tool post for mounting and maneuvering the grinding tool relative to the work-piece. The machine includes a print system for printing printable material to the work-piece via additive manufacturing. The printed material may be used to customize a shape of the work-piece after the work-piece has been grinded or turned in the machine. This combination allows for a reduced machine footprint and increased product accuracy.

Abstract: A process for producing at least one three-dimensional object by solidifying a solidifyable material, comprising the steps of: providing an object carrier capable of carrying the object to be produced; providing a material capable of solidifying when subjected to energy supply; bringing a solidifyable material carrier/provider in a position to carry/provide solidifyable material at least in a building region where solidifyable material is to be solidified; supplying, to the building region, energy capable of solidifying the solidifyable material; and sensing, measuring and/or controlling a condition selected from the group consisting of pressure and/or strain. Alternatively or in combination, contact pressure, fluid pressure and/or material flowability can be sensed and/or adjusted.

Abstract: A 3-D printing apparatus includes a frame, a tank, an automatic-filling module and a control unit. The tank is disposed in the frame and contains a liquid-forming material. The automatic-filling module includes a sensing unit, a reservoir, a filling pipe and a pressuring unit. The sensing unit detects a liquid level of the tank. The reservoir stores the liquid-forming material. The filling pipe connects to the reservoir and includes an outlet. A maximum liquid level of the liquid-forming material in the reservoir is lower than or equal to a level of the outlet. A gap exists between the outlet and a top edge of the tank. The pressuring unit provides a positive pressure to the reservoir so that the liquid-forming material in the reservoir flows to the tank. The control unit determines whether the pressuring unit provides the positive pressure to the reservoir according to the liquid level.

Abstract: In a region determination device and method, when a set target contour is an island contour representing an outer profile of a three-dimensional printing object, it is determined whether a closest enclosing contour Lmin enclosing the target contour at a closest position thereto has been set for the slice model or not. When closest enclosing contour Lmin is determined to have been set, it is determined whether the closest enclosing contour Lmin is an island contour or not. When the closest enclosing contour Lmin is determined to be an island contour, the target contour is deleted from the slice model. Then, the region of the post-deletion slice model is divided into a printing region and a non-printing region.

Abstract: An imprint apparatus according to one embodiment includes a contact processing unit and a defect determination unit. The contact processing unit brings a template pattern formed on a front surface of a template into contact with resist placed on a substrate. The defect determination unit determines a defect in an imprint process, on the basis of force which is generated from at least one of the template, the resist, and the substrate, during the imprint process.

Abstract: According to one embodiment, a template includes a template pattern and a liquid repellent pattern. The template pattern is formed on a substrate. The liquid repellent pattern has liquid repellency to a resist and are disposed on a periphery of a region for arrangement of the template pattern.

Abstract: A three-dimensional (3D) printer includes a powder layer forming device (2) uniformly spreading material powder in a molding space (R) in a chamber (1) to form a powder layer (8), and a laser irradiation device (4) irradiating a laser beam (L) on a predetermined irradiation region of the powder layer to form a sintered layer (9). The powder layer forming device includes a recoater head (23) discharging the contained material powder to the molding space, a blade (31, 33) leveling the discharged material powder to a predetermined thickness, and a holding member (35, 37) holding the blade on the recoater head, wherein the blade is flexible, and the blade and the holding member are nonmagnetic and electrically conductive.

Abstract: The invention relates to a device (1) for building a layer body (2) from a plurality of superimposed layers of free-flowing material, in particular particulate material, on a building platform (3) in a build space (4), the layers being solidified and joined to each other in locally predetermined areas, so that at least one layer body (2) is formed by the solidified and joined areas of the layers, including an elongated discharge container (5), which is movable back and forth over the build space (4]) in at least one discharge direction and which has at least one discharge opening (6) from which the free-flowing material is dischargeable in individual superimposed layers during the movement of the discharge container (5), it being possible to supply the discharge container (5) with free-flowing material from a filling device with at least one storage or filling container (10) having at least one outflow opening (11) by vertically covering the at least one outflow opening (11) of the storage or filling containe

Abstract: A three-dimensional printing apparatus includes a movable member with a holder secured thereto, a sensor detecting whether a position of the movable member is equal to or higher than a first position or is lower than the first position, a storage device storing an origin position lower than the first position by a first distance, and a determination device determining whether deviation from the origin position has occurred. The determination device includes a first moving unit moving the movable member to the origin position, a second moving unit moving the movable member toward a second position, which is higher than the origin position by a sum of the first distance and a second distance, and a first determination unit determining that deviation from the origin position has occurred unless the sensor detects that the position of the movable member is equal to or higher than the first position before the movable member reaches the second position.

Abstract: A device for gripping a hollow body includes a freely-rotating shaft and a mandrel that is integral with the shaft. The mandrel itself includes: an end fitting; a radiator that is mounted directly on the end fitting; a crosspiece inserted between the end fitting and the radiator; an expandable ring mounted between the end fitting and the crosspiece; an elastic element mounted between the end fitting and the expandable ring; an insert made of a material with high thermal conductivity, set in a housing made in the end fitting and emptying onto a free end face of the former, with the insert extending up to the point facing the radiator.

Abstract: The present invention provides an imprint apparatus which performs an imprint process of transferring a pattern onto a substrate, the apparatus comprising a deforming unit configured to deform the pattern surface by applying a force to the mold, an obtaining unit configured to obtain thickness information of the mold, a calculation unit configured to calculate a force to be applied to the mold based on the thickness information of the mold obtained by the obtaining unit, so that the pattern surface has a target shape in the imprint process, and a control unit configured to control the deforming unit to apply the force calculated by the calculation unit to the mold in the imprint process.

Abstract: An apparatus and method for making a three-dimensional object from a solidifiable material using a linear solidification device and contourless object data is shown and described. A voxel matrix is superimposed over an object model defined by three-dimensional object data to determine active voxels that intersect at least a portion of the object model. The active voxels are related to a path generation reference frame of an apparatus for making a three-dimensional object to generate solidification energy source event data that defines scanning (y) axis locations and/or solidification times at which a linear solidification device supplies solidification energy to a solidifiable material.

Abstract: Methods for manufacturing an ophthalmic lens with an insert using voxel-based lithography techniques, wherein at least a portion of one surface may be free-formed from a reactive mixture are set forth herein. An ophthalmic lens precursor may be formed on a substrate with an arcuate optical quality surface via a source of actinic radiation controllable to cure a definable portion of a volume of reactive mixture, wherein the control may be on a voxel by voxel basis.

Abstract: A 3-D printer scalable to large sizes employs a combination of mechanical and electrical scanning of a linear array of electron beams that operate to melt material of a powder bed. A housing holding the electron beam sources may be maintained at a high vacuum and positioned close to a print surface to minimize electron travel in a softer vacuum surrounding a print bed.

Abstract: An additive manufacturing system and process for producing three-dimensional parts, which includes forming layers of the three-dimensional part from a part material at a first resolution, and ablating selected voxels of the formed layers with a laser beam at a second resolution that is higher than the first resolution.

Abstract: Method for manufacturing an optical information recording medium includes: preparing a substrate material where a first guide groove has been formed on a first side of the substrate material; forming a second guide groove by applying an energy-curable resin material between a second side of the substrate material opposite to the first side and a stamper and subsequently curing the energy-curable resin material to form a substrate; providing at least one recording layer and a cover layer on a first side of the substrate where the first guide groove has been formed, while holding the substrate with the stamper left unremoved from the substrate to protect the second guide groove; and exposing the second guide groove by removing the stamper and providing at least one recording layer and a cover layer on a second side of the substrate where the second guide groove has been formed.

Abstract: An imprint apparatus forms a pattern of an imprint material on a substrate by using a mold. A substrate holding unit holds the substrate by a suction force between the substrate and a holding surface and includes a first suction unit for sucking a rear surface of a first region of the substrate with a first suction force and a second suction unit for sucking a rear surface of a second region of the substrate with a second suction force. A deformation mechanism deforms a shape of the first region in a direction along the holding surface when forming the pattern of the imprint material on the first region. An adjusting unit adjusts the first and second suction forces. The first suction force is less than the second in at least a portion of a period during the deforming of the shape of the first region by the deformation mechanism.

Abstract: A method of manufacturing a mask includes dividing an upper surface of a template having a design pattern into a plurality of regions, the template being arranged over a polymer layer on a mask substrate, correcting a distorted region among the regions, pressing the polymer layer with the template to form a mask pattern corresponding to the design pattern on the polymer layer; and curing the mask pattern.