Abstract: Apparatus to produce a three-dimensional object and methods of producing a three-dimensional object are described. In some examples, a first fluid comprising a colorant and a second fluid comprising an absorber to absorb electromagnetic radiation are applied on a layer of particulate material. Application of the second fluid to the layer of particulate material is in dependence on an ability of the first fluid to absorb the electromagnetic radiation.

Abstract: A matrix for the cultivation of biological cells and differentiation into neuronal cells consists of a polymer base body having a structured surface with a microstructure and a nanostructure embedded therein.

Abstract: Methods of printing a three-dimensional object using co-reactive components are disclosed. Thermosetting compositions for three-dimensional printing are also disclosed.

Abstract: A flattening apparatus includes a mold holding unit configured to suck and hold a mold including a flat portion, a substrate holding unit holding a substrate, an exposure unit irradiating a light curing composition supplied onto the substrate with light at least via the mold to cure the composition, the composition being irradiated with the light and cured in a state where the flat portion of the mold is in contact with the composition on the substrate, a gas suction unit sucking gas from a spatial region between the mold and the mold holding unit, a gas supply unit supplying the gas to the spatial region, and a control unit controlling the gas suction unit and the gas supply unit to perform temperature adjustment processing for supplying the gas to the spatial region in a state where the mold is sucked and held onto the mold holding unit.

Abstract: Provided is a kit including a curable composition for imprinting which contains a polymerizable compound having an aromatic ring and a composition for forming an underlayer film for imprinting which contains a polymer and a solvent, in which the polymer contains at least one kind of specific constitutional unit and has a polymerizable group, a film formed of the composition for forming an underlayer film for imprinting is a solid film at 23° C., and a portion that has a continuous partial structure containing an aromatic ring which is included in the polymerizable compound and accounts for 60% by mass or more of the polymerizable compound is common to a continuous partial structure containing an aromatic ring which is included in a substituent R in a side chain in the polymer.

Abstract: An apparatus includes a wall that defines a shaft, a powder platform configured to support a powder bed within the shaft and configured to move through the shaft, and a sealing device that is in a compressed state from an outer perimeter of the sealing device to an inner perimeter of the sealing device such that the outer perimeter contacts the wall and the inner perimeter contacts the powder platform to form a seal between the powder platform and the wall. Another apparatus includes a wall that defines a shaft, a powder platform configured to support a powder bed within the shaft and configured to move through the shaft, and a sealing device comprising a non-fibrous material that is affixed to the powder platform and extends away from the powder platform, the sealing device contacting the wall to form a seal between the powder platform and the wall.

Abstract: 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.

Abstract: A 3D printing kit can include a powder bed material comprising from about 80 wt % to 100 wt % polymer particles, a fusing agent to selectively apply to the powder bed material, and a hardener to selectively apply to the powder bed material. The polymeric particles can include a polyalkylene backbone with both ethylene and propylene polymerized monomeric units with from 2 mol % to 15 mol % of the polymerized monomeric units include a grafted side chain having an epoxide moiety. The fusing agent can include water and a radiation absorber that absorbs electromagnetic energy and converts the electromagnetic energy to heat. The hardener can be present in the fusing agent or can be included in a hardening agent that is separate from the fusing agent.

Abstract: A printing method employs a piece of equipment comprising an energy-delivering exciter that is orientable to produce a punctiform interaction with at least one ink that possibly contains non-uniformities and that is deposited on a printing medium including a transparent interaction area, in order to cause the transfer of a targeted portion of the ink to a receiver. The method includes a step of generating a wetting film at least partially covering the transparent interaction area, followed by a step of depositing the ink on the surface of the wetting film and transferring steps.

Abstract: Disclosed herein is a nanoimprint lithography (NIL) soft mold precursor material comprising a curable fluorinated base resin component, one or more additives, one or more crosslinkers, and one or more of a photo radical generator, a photo acid generator, or both. According to certain embodiments, further disclosed herein are a polymeric material comprising a partially or totally polymerized or crosslinked NIL precursor material, a NIL soft mold comprising the polymeric material, a process for making the NIL soft mold, and a method of using the NIL soft mold to form a NIL grating.

Abstract: A robotic system and method are provided for transfer of fluid between a container accessible via a container-septum and a fluid transfer assembly accessible via a fluid transfer connector septum. The robotic system includes a controller and a manipulator controllable by the controller to manipulate at least one of the container and the fluid transfer assembly. The controller is configured to operate the manipulator to secure contact between the container-septum and the fluid transfer connector septum during at least a portion of the transfer of the fluid.

Abstract: The present disclosure relates to a fiber-reinforced copper-based brake pad for high-speed railway train, and preparation and friction braking performance thereof. The fiber-reinforced copper-based brake pad for high-speed railway train comprises 80-98.5 wt. % metal powder, 1-15 wt. % non-metal powder and 0.5-5 wt. % fiber component. In addition, some components are added in a specific proportion to achieve optimal performance. The copper-based powder metallurgy brake pad is obtained by powder mixing, cold-pressing and sintering with constant pressure. The friction braking performance of the obtained brake pad is tested according to a braking procedure consisting of three stages, i.e., the first stage with low-pressure and low-speed, the second stage with high-pressure high-speed and the continuous emergency braking third stage with high-pressure and high-speed.

Abstract: An example of a three-dimensional (3D) printing kit includes a build material composition, an epoxy agent to be applied to at least a portion of the build material composition during 3D printing, and a fusing agent to be applied to the at least the portion of the build material composition during 3D printing. The build material composition includes a polyamide having an amino functional group. The epoxy agent includes an epoxy having an epoxide functional group to react with the amino functional group of the polyamide in the at least the portion. The fusing agent includes an energy absorber.

Abstract: In examples, a chip scale package (CSP) comprises a semiconductor die; a conductive terminal coupled to the semiconductor die; and a non-conductive coat covering a backside of the semiconductor die and a sidewall of the semiconductor die. The non-conductive coat has a thickness of less than 45 microns.

Abstract: Photolatent olefin metathesis catalysts can be used in combination with metathesis-active monomers or resins for photopolymerization-based additive manufacturing via ring-opening metathesis polymerization (ROMP). A variety of alternative catalysts and photosensitizers are commercially available that allows for tuning of thermomechanical properties, potlifes, activation rates, and irradiation wavelengths. As an example, two optimized catalyst/photosensitizer systems were demonstrated in the rapid stereolithographic printing of complex, multidimensional poly-dicyclopentadiene structures with microscale features under ambient conditions.

Abstract: A method of additive manufacturing a part via vat photopolymerization (VPP) includes irradiating a first material through a first transparent wall of a first material tank and forming a first section of an nth layer of the part on a platform, positioning the platform with the first section of the nth layer in a second material tank with a distance between the first section of the nth layer and a second transparent wall, and irradiating a second material such that a second section of the nth layer of the part is formed on the platform adjacent to the first section of the nth layer. The method repeats forming first and second sections of additional layer until a predetermined number of total layers are formed. Positioning the first and second sections with a distance between the second and first transparent walls, respectively, inhibits crashing during forming of the part.

Abstract: A device for fabricating a solid freeform object includes a stage that rotates, a discharging device disposed over the stage and includes a discharging head each having one or more nozzles, the discharging head for discharging a curing composition to the stage and an exposing device disposed over the stage that exposes the stage to active energy, wherein the distance between the stage and the discharging device is variable and the distance between the stage and the exposing device is variable, wherein the shorter direction of the discharging head is perpendicular to the direction from the center of rotation of the stage toward the peripheral of the stage, wherein the number of the nozzles along the shorter direction increases in the direction from the center of rotation of the stage toward the peripheral of the stage.

Abstract: A method for fabricating patterns. An inverse optimization scheme is implemented to determine process parameters used to obtain a desired film thickness of a liquid resist formulation, where the liquid resist formulation includes a solvent and one or more non-solvent components. A substrate is covered with a substantially continuous film of the liquid resist formulation using one or more of the following techniques: dispensing discrete drops of a diluted monomer on the substrate using an inkjet and allowing the dispensed drops to spontaneously spread and merge, slot die coating and spin-coating. The liquid resist formulation is diluted in the solvent. The solvent is then substantially evaporated from the liquid resist formulation forming a film. A gap between a template and the substrate is then closed. The film is cured to polymerize the film and the substrate is separated from the template leaving the polymerized film on the substrate.

Abstract: In an example method for forming three-dimensional (3D) printed electronic parts, a build material is applied. An electronic agent is selectively applied in a plurality of passes on a portion of the build material. A fusing agent is also selectively applied on the portion of the build material. The build material is exposed to radiation in a plurality of heating events. During at least one of the plurality of heating events, the portion of the build material in contact with the fusing agent fuses to form a region of a layer. The region of the layer exhibits an electronic property. An order of the plurality of passes, the selective application of the fusing agent, and the plurality of heating events is controlled to control a mechanical property of the layer and the electronic property of the region.

Abstract: Described is a system for reducing waste during 3D printing, which includes a printing component configured to print a plurality of layers. Each of the plurality of layers comprises at least one of a first curable material and a second curable material. The system also includes a leveling component configured to remove excess material from each of the plurality of layers after each layer is printed. The system includes a first recirculation loop configured to return the excess material that includes only the first curable material back to the printing component, and a second recirculation loop configured to return the excess material that includes only the second curable material back to the printing component. In addition, the system includes a waste bin configured to receive the excess material that includes both the first curable material and the second curable material.

Abstract: An additive manufacturing system including a two-dimensional energy patterning system for imaging a powder bed is disclosed. The two-dimensional energy patterning system may be used to control a state of matter of each successive additive layer. Accordingly, the system may be used to alter the chemical bond arrangement of the material forming the various additive layers.

Abstract: Some examples include an additive manufacturing system including a processor and a memory to store instructions. The instructions cause the processor to generate print data from received data related to a three-dimensional build object. The generated print data includes defined print data to dispensing a first agent at a build area of a build material layer, defined print data to selectively dispensing a second agent at a component receiving area within the build area of the build material layer, the second agent to locally reduce a viscosity of the build material at the component receiving area to a viscous state, and defined print data to position a component within the component receiving area at a time of the component receiving area being in a viscous state.

Abstract: A method employs a first polymeric material to deposit first and second pattern layers laterally shifted from each other such that laterally shifted pattern layers form between them an empty volume with a variable cross-section that varies along with the first and second pattern layers. A second polymeric material is cast in the empty volume between the first and second pattern layers to cast a complex-shaped 3D object identical in shape to the empty volume between the first and second pattern layers. Radiation is applied to cure the first and second polymeric materials. The first polymeric material is a water breakable material composition including acrylamide, methacrylamide, acrylate, acrylic acids, and acrylic acid salts, hydroxy(meth)acrylate, carboxy(meth)acrylate, acrylonitrile, carbohydrate monomers, methacrylate and polyfunctional acrylics.

Abstract: A process for obtaining an insulating glazing including first and second glass sheets that are held parallelly spaced apart with a transparent glass spacer adhesively bonded to the periphery of the glass sheets to make a gas-filled interlayer space, includes providing the spacer that is substantially parallelepipedal and including two rough faces opposite one another, and two smooth faces opposite one another, assembling the spacer between the glass sheets so that each rough face of the spacer is positioned close to an edge, and against an inner face of each glass sheet, the interstitial width between the rough faces of the spacer and the inner faces of the glass sheets being less than 0.01 mm, depositing, at the external joint lines between the rough faces and the inner faces, a transparent adhesive, the adhesive moving by capillary action to cover the surface of the rough faces, then curing the adhesive.

Abstract: A light transmissive substrate for transforming a Lambertian light distribution into a batwing light distribution. The light transmissive substrate includes a first surface comprising a plurality of microstructures, and a second surface on a side of the substrate opposite the first surface. The substrate is configured to receive light in a Lambertian distribution from a light source at the first surface and transform the light into a batwing distribution exiting the second surface. The batwing distribution having a peak intensity at about ±30° to about ±60° from X and Y axes, and a minimum intensity at nadir.

Abstract: In one example, a fusing system for an additive manufacturing machine includes a first carriage carrying a layering device and a fusing lamp, and a second carriage carrying a fusing agent dispenser. The first carriage and the second carriage are movable back and forth over the work area along the same line of motion so that the first carriage follows the second carriage in one direction and the second carriage follows the first carriage in the other direction.

Abstract: A lighting assembly with a single edge lit optical configuration produces various asymmetric light distributions which provide targeted control of light output with peak intensity that is non-normal to the light guide output face. The compact form factor of the lighting assembly embodiments having narrow width are particularly well-suited for use in linear lighting applications requiring suspended, surface and recessed installations typically used to illuminate walls, floors and/or ceilings. The lighting assembly can also be selectively configured and oriented during assembly and installation to achieve various lighting distributions. Optical components within the lighting assembly are typically positioned and retained in optical alignment with internal support features of a linear housing.

Abstract: A light fixture with a single edge lit optical assembly produces various light distributions which provide targeted control of light output with peak intensity that is non-normal to the light guide output face. The compact form factor and modular design of the light fixture embodiments having narrow width are particularly well-suited for use in linear lighting applications requiring suspended, surface and recessed installations typically used to illuminate walls, floors and/or ceilings. The light fixture can also be selectively configured and oriented during assembly and installation to achieve various lighting distributions. Optical components within the light fixture are typically positioned and retained in optical alignment with internal support features of a linear housing. The optical assembly typically includes LED board, light guide, and one or more reflective surfaces. Additionally an optically transmitting component further provides a fixture assembler a range of design choices.

Abstract: A photocurable composition is provided. A cured product formed by curing the photocurable composition has reworkability and excellent heat resistance while having flexibility. The photocurable composition includes a telechelic acrylic polymer having an acryloyl group at both ends; a polyfunctional acrylic polymer having acryloyl groups; a monofunctional acrylic monomer; and a fumed silica including at least one of a hydrophilic fumed silica or a fumed silica having a polar group. The photocurable composition has a Martens hardness of 0.07 to 0.75 N/mm2, where the Martens hardness is a hardness after the photocurable composition is cured.

Abstract: Herein disclosed is a method of making an electrochemical reactor comprising a) depositing a composition on a substrate to form a slice; b) drying the slice using a non-contact dryer; c) sintering the slice using electromagnetic radiation (EMR), wherein the electrochemical reactor comprises an anode, a cathode, and an electrolyte between the anode and the cathode. In an embodiment, the electrochemical reactor comprises at least one unit, wherein the unit comprises the anode, the cathode, the electrolyte and an interconnect and wherein the unit has a thickness of no greater than 1 mm. In an embodiment, the anode is no greater than 50 microns in thickness, the cathode is no greater than 50 microns in thickness, and the electrolyte is no greater than 10 microns in thickness.

Abstract: A light fixture with a single edge lit optical assembly produces various light distributions which provide targeted control of light output with peak intensity that is non-normal to the light guide output face. The compact form factor of light fixture embodiments having narrow width are particularly well-suited for use in linear lighting applications requiring suspended, surface and recessed installations typically used to illuminate walls, floors and/or ceilings. The light fixture can also be selectively configured and oriented during assembly and installation to achieve various lighting distributions including asymmetrical and symmetrical with one or more peak intensities. Optical components within the light fixture are typically positioned and retained in optical alignment with internal support features of a linear housing.

Abstract: Certain examples relate to a build material management system to transport build material from a collection to source to one of a plurality of storage tanks. The storage tank is determined by a controller that compares color of the build material measured by a color sensor with predetermined values. The controller routes the build material to the storage tank.

Abstract: A method of forming parts uses a forming tool having a forming surface, and an ultrasonic transducer array on the forming surface.

Abstract: The present invention relates to a composition for 3D printing, a 3D printing method using the same, and a three-dimensional comprising the same, and provides a composition for 3D printing capable of realizing a three-dimensional shape having precision and excellent curing stability.

Abstract: A stretchable film is made of, at least as a top surface of the stretchable film, a cured product of a stretchable film material containing a silicone polyurethane resin. The top surface of the stretchable film has a repeated uneven pattern formed with depths of 0.1 ?m to 2 mm and pitches of 0.1 ?m to 5 mm. Thus, the present invention provides a stretchable film having excellent stretchability, with the film top surface being excellent in water repellency and free from sticking; and a method for forming the stretchable film.

Abstract: An example of a multi-fluid kit for three-dimensional printing includes a binder fluid and an adhesion promoter fluid. The binder fluid includes water and polymer particles in an amount ranging from about 1 wt % to about 40 wt % based on the total weight of the binder fluid. The adhesion promoter fluid includes water and an aromatic dihydrazide adhesion promoter in an amount ranging from about 0.1 wt % to about 10 wt % based on a total weight of the adhesion promoter fluid.

Abstract: A method of manufacturing a carbon nanotube (CNT) composite material structure is provided. The method includes providing ink, in which a CNT composite material including a CNT and a rheological modifier is dispersed, to a nozzle, positioning the nozzle at a predetermined point on a substrate, and moving the nozzle along a predetermined path on the substrate while discharging the ink from the nozzle by surface tension of a meniscus formed at a leading end of the nozzle and printing a CNT composite material pattern corresponding to a movement path of the nozzle. In printing the CNT composite material pattern, the pattern is stacked as the CNT composite material by evaporation of a solvent within a meniscus formed by the ink extruded from the nozzle between the nozzle and the substrate.

Abstract: The present invention relates to a method for manufacturing an aluminum alloy anodized film having a superhydrophobic surface and an aluminum alloy having an anodized film with a superhydrophobic surface manufactured by the method. The present invention has an economical effect that an aluminum alloy, in which a three-dimensional shaped anodized film structure formed on the surface thereof is controlled in various forms, such as a pillar-on-pore structure, may be manufactured at low costs within a short time. The aluminum alloy with the controlled anodized film structure has excellent superhydrophobicity, corrosion resistance, and thermal conductivity, and thus may be used in various industrial fields, such as electronic device housings, LED lighting covers, heat exchangers, pipes, road structures, automobiles, aircrafts, ships, and generators.

Abstract: The present invention provides a method of generating dummy patterns and calibration kits, including steps of generating devices-under-test (DUTs) using a point of said chip window layer as reference point in a unit cell, generating calibration kits corresponding to the DUTs using the point as reference point in corresponding unit cells, generating DUT dummy patterns for each DUTs individually in the unit cell, copying the DUT dummy patterns in the unit cell to the corresponding calibration kits in the corresponding unit cells using the point as reference point, and merging all of the unit cell and corresponding unit cells into a final chip layout.

Abstract: A lamination molding apparatus includes: a material layer forming device that forms a material layer in a molding region; an irradiator that sinters or melts the material layer to form a solidified layer; and a cooling device that cools, to a cooling temperature, at least a part including an upper surface of a solidified body. The material layer forming device includes: a base having the molding region, a recoater head disposed on the base, a recoater head driving device that reciprocates the recoater head in a horizontal direction, and a blade that is arranged on the recoater head and that levels material powder to form the material layer. The cooling device includes: a cooling body that is controlled to the cooling temperature and comes into contact with the upper surface of the solidified body, and a mounting member that mounts the cooling body to the recoater head.

Abstract: A radiation curable inkjet ink including an adhesion promoter including (1) at least one a free radical polymerizable group selected from the group consisting of an acrylate, a methacrylate, an acryl amide and a methacryl amide; (2) at least one aliphatic tertiary amine; and (3) at least one carboxylic acid or salt thereof with the proviso that the carboxylic acid is linked to an aliphatic tertiary amine via a divalent linking group selected from the group consisting of an optionally substituted methylene group and an optionally substituted ethylene group.

Abstract: Additive manufacturing compositions and methods for fabricating a conductive article with the same are provided. The additive manufacturing composition may include a 3D printable material and a metal precursor disposed in the 3D printable material. The metal precursor may include a metal salt, a metal particle, or combinations thereof. The method may include forming a first layer of the article on a substrate, where the first layer includes the additive manufacturing composition, forming a second layer of the article adjacent the first layer, and binding the first layer with the second layer to fabricate the article. The method may also include plating a metal on at least a portion of the article to fabricate the conductive article.

Abstract: Systems and methods for shaping a film. Formable material in an imprint field on the substrate may be contacted with a shaping surface of a template. Outer boundaries of the imprint field correspond to outer boundaries of the shaping surface. Shaping the film includes forming a cured layer within the imprint field while the shaping surface is in contact with the formable material. Shaping the film may include separating the shaping surface from the cured layer. Shaping the film may include moving the template away from the imprint field to a first offset location wherein the outer boundaries of the shaping surface are offset relative to the outer boundaries of the imprint field. Shaping the film may include curing a second portion of the formable material while the template is at the first offset location so as to form the shaped film.

Abstract: A system for forming a multiple layer object, the system including: a spreader to form a layer of polymer particles, the polymer particles having a melting temperature (Tm) of at least 250° C.; a fluid ejection head to selectively deposit a first fusing agent on a first portion of the layer and selectively deposit a second fusing agent on a second portion of the layer, wherein the fluid ejection head does not deposit the fusing agent on a third portion of the layer; and a heat source to heat the first portion and second portion, wherein the first portion is part of the multiple layer object and the second portion is not part of the multiple layer object and the second portion raises a temperature of polymer particles in a subsequent layer.

Abstract: A method of producing at least one security element (9) in a data carrier (1) comprises the steps of: Providing a source of radiation (6) that is configured to emit electromagnetic radiation (R), providing a data carrier (1) that comprises at least one guiding layer (2) and at least one processing layer (3), providing at least one masking layer (4) comprising at least one masking element (5), and irradiating electromagnetic radiation (R) from the source of radiation (6) through the masking layer (4) and onto the data carrier (1). Electromagnetic radiation (R) that impinges on a region (7a) of the masking layer (4) having no masking element (5) impinges on the at least one processing layer (3) as electromagnetic radiation having a first radiation property (Ra), whereby the at least one processing layer (3) is cured in said region of impingement (8a) into a first curing state.

Abstract: Provided is an imprint apparatus which reduces a shift of a mold from a desired position. The imprint apparatus that forms a pattern of an imprint material on a substrate using a mold includes a correction mechanism which corrects a shape and a magnification of the mold, and a control unit which controls the correction mechanism on the basis of a difference in shape and magnification between the mold and the substrate. The control unit changes a shape coefficient multiplied by a correction amount of the shape to balance a resultant force and a moment on the mold applied by the correction mechanism on the basis of a magnification coefficient, which is a coefficient multiplied by a correction amount of the magnification through closed-loop control.

Abstract: Pattern forming method includes, for each shot area group (SAG) in the following order: discretely dropping curable composition droplets to layer the droplets on a plurality of shot areas included in a certain SAG on substrate; waiting for a time of (mmax?m)×Td, where Td is a time for the dropping on one shot area, m is the number of shot areas included in the certain SAG, and mmax is the maximum value of m; and imprinting in order that the dropping is performed on the plurality of shot areas. The time Td and a time Ti for the imprinting on one shot area are equal to each other. The number of shot areas included in at least one SAG is different from the number of shot areas included in another at least one SAG. In the waiting, the dropping and the imprinting are not performed.

Abstract: The present invention provides a method for manufacturing a neural probe incorporated with an optical waveguide. The method for manufacturing a neural probe incorporated with an optical waveguide comprises the following steps. A mold-filling step, for providing a base with at least one groove formed therein. A disposing step, for disposing and overlaying a substrate having a plurality of electrode parts on the groove of the base. A combining step, for solidifying the photosensitive adhesive by a solidification process, the solidified photosensitive adhesive forming an optical waveguide and being combined with the substrate. A mold-releasing step, for removing the base from the optical waveguide and the substrate, the substrate and the optical waveguide forming a product.

Abstract: In one example, a fusing system for an additive manufacturing machine includes a fusing lamp to heat build material in the work area, a heat sensor to measure a heat output of the fusing lamp, and a controller operatively connected to the fusing lamp and to the heat sensor to adjust the heat output of the fusing lamp to the work area based on a heat output measured by the heat sensor.

Abstract: An additive manufacturing device and a method of fabricating a 3D object is provided. The device includes a vessel configured to rotate about an axis and a membrane disposed to form a floor of the vessel. A build plate is movable between a first position and a second position, the build plate being positioned a predetermined distance apart from the membrane in the first position. A light source is arranged to direct electromagnetic radiation through the membrane towards the build plate. A processor is provided that is responsive to executable computer instructions for rotating on a periodic, aperiodic, or continuous basis, the vessel to oxygenate the membrane.