Abstract: A laser processing method includes forming a first processing mark to form an origin of dividing or a dividing groove with a laser beam in a first direction, and forming a second processing mark by forming an origin of dividing or a dividing groove with the laser beam in a second direction that intersects the first direction. An unprocessed region in which the processing is not executed remains at an intersection at which the first direction and the second direction intersect each other. The method further includes processing the unprocessed region. The unprocessed region processing step forms a coupling processing mark that couples the first processing mark and the second processing mark to each other to form an origin of dividing or a dividing groove with the laser beam in a direction arising from setting an inclination with respect to the first direction or the second direction.

Abstract: A system is disclosed for additively manufacturing a composite structure. The system may include a support, and a print head operatively connected to and moveable by the support. The print head may include an outlet configured to discharge a material in a trajectory along a central axis of the outlet, and a compactor disposed downstream of the outlet relative to the trajectory and configured to press the material transversely against an adjacent surface. The outlet may be configured to translate relative to the compacting module.

Abstract: A photocurable material formulation for a lost model that has a high elastic modulus, shows small thermal expansion, has heat resistance in a certain temperature region, and is free of a photoacid generator to be used in an epoxy material or the like. The formulation is a photocurable composition including curable materials formed of monofunctional (meth)acrylates each having a molecular weight of 150 or more and less than 350, and a bifunctional (meth)acrylate having a molecular weight of 200 or more and less than 400.

Abstract: The present disclosure provides systems, methods, and computer-readable storage devices for building construction from extrudable materials with improved accuracy due to increased stability of components. In some aspects, a construction system includes a frame assembly disposed at a building site and a moveable frame assembly (e.g., gantry) coupled to the frame assembly and configured to move along a first axis. A moveable platform is coupled to and configured to move along the moveable frame assembly along a second axis perpendicular to the first axis. The moveable platform has an opening and a guide structure is disposed within the opening and configured to move along a third axis that is perpendicular to the first and second axes. The guide structure holds a conduit configured to deposit, via a nozzle, extrudable building material at the building site. Use of the guide structure, disposed within the opening, stabilizes the nozzle during material deposition.

Abstract: In various aspects, top-down stereolithography apparatus and methods of use thereof are provided herein that allow for additive manufacturing of an article from a high-viscosity resin. The apparatus and methods can print resins having viscosities higher than conventional systems, e.g. viscosities up to about 100 Pa·s at the elevated temperature. The resin may have a room temperature viscosity of about 100 Pa·s, about 250 Pa·s, about 1000 Pa·s, or more. In some aspects, the resin is a solid at room temperature. The apparatus and methods do not rely upon solvents or other viscosity modifiers being added to the resin, and are capable of top-down additive manufacturing approaches which provide reduced stress on the printed article.

Abstract: In an aspect, a method for additive manufacture of a three-dimensional object based on a computational model comprises steps of: grayscale photohardening a precursor material to form a portion of the object; and applying a hardened meniscus coating at a feature of the object; wherein the three-dimensional object is formed via at least the combination of the steps of gray scale photohardening and applying the meniscus coating. In some embodiments, the grayscale photohardening step is a grayscale photopolymerization step. In some embodiments, the applying a hardened meniscus coating step is a meniscus equilibrium post-curing step.

Abstract: A bioprinter (1) comprising at least one printhead (4a, 4b, 4c) with nozzle (5), a printbed (20) onto which the printhead (4a, 4b, 4c) is arranged to print an ink, an ultrasonic sensor arrangement arranged at the printbed (20), a controller (7) arranged to control movement of the printhead/nozzle (4a, 4b, 4c; 5) and to perform calibration of the printhead/nozzle (4a, 4b, 5 4c; 5) based on information from the ultrasonic sensor arrangement.

Abstract: A composite material includes a laminate in which fiber sheets are laminated. The laminate has a bendable portion that is to be bent along a mold. In a region of the laminate from an end edge on a bent side to the bendable portion, the laminate is divided into layers along a plate thickness direction of the laminate.

Abstract: Items may be packaged for shipping or storage using additive manufacturing techniques, also known as three dimensional (3-D) printing. Packages made by such processes may be referred to as 3-D printed packages. The 3-D printed packages may be customized based on one or more items contained in the package, a recipient of the package, a sender of the package, and/or a destination location of the package. The customizations may include two-dimensional and/or three-dimensional customizations on an interior and/or exterior of the 3-D printed packages.

Abstract: The invention relates to a process for the production of polymer fibers from polymers dissolved in ionic liquids by means of an air gap spinning process, characterized in that a) a spinning solution that contains an ionic liquid and a dissolved polymer is produced; b) said spinning solution is guided through an extruder before it is divided into fibers via a die; and c) the obtained fibers are guided via an air gap through a coagulation bath.

Abstract: A device is provided for radially strengthening a polylactic acid tube, which includes a tubular mold, a rotating blade and a distal blade, wherein a rotating shaft of the rotating blade is arranged at an axial position of the tubular mold, a first end of the distal blade is movably connected to the rotating blade, and a second end of the distal blade is controlled by a control rod so as to open and close the distal blade. A strengthening method is provided, in which the device for radially strengthening a polylactic acid tube is used.

Abstract: Embodiments of the present disclosure provide molds made by additive manufacturing coupled with electrodeposition. Such methods comprise subjected a workpiece to one or more deposition process(es), such as electrodeposition, that provide a coating that possesses desirable chemical, physical, and/or mechanical properties. In some embodiments, the methods further comprise forming at least one workpiece for the mold by, for example, an additive manufacturing process such as three-dimensional printing (3D printing). Additionally, the present disclosure provides methods for the use of a mold for molding polymerizable, settable, thermoplastic, or thermoset materials.

Abstract: An enclosure for a three-dimensional printing system comprises a plurality of walls and a glass panel. The walls define an inner chamber for receiving the three-dimensional printing system and an opening that provides access to the inner chamber from outside the walls. The glass panel is shiftable between a closed position in which the panel blocks access to the inner chamber and an open position in which the panel allows access to the inner chamber via the opening.

Abstract: A suction device for sucking a process gas from a process chamber and to an apparatus for producing a three-dimensional component by selectively solidifying a building material, applied layer by layer, by means of a beam acting on the building material, having an suction tube which at one end has an outlet opening at an end face, to which an suction line can be connected, having an intake opening which extends in the longitudinal direction of the suction tube and is slot shaped, wherein there is provided at the outlet opening of the suction tube a connection port which can be inserted into a connection interface on or in the process chamber, and at the opposite end of the suction tube there is provided a holding element which is releasably held by a holding device associated with an opening of the process chamber.

Abstract: A multi-component print surface and associated additive manufacturing methods are generally described.

Abstract: A molding subsystem includes a reconfigurable mold and a control subsystem. The reconfigurable mold includes one or more plates, with each plate including: a plurality of pins defining a molding surface of the reconfigurable mold; a frame which defines a plurality of channels for receiving the plurality of pins; and a plurality of actuators for moving the plurality of pins in a first axial direction. The control subsystem includes a controller operably connected to the plurality of actuators of each plate, such that the controller can communicate instructions to and/or obtain readings therefrom. The molding surface of each plate can be manipulated in response to pin movement to facilitate the manufacture of articles of different shape and dimension. Output data corresponding to a digital model of an article placed in the reconfigurable mold can be generated based on readings obtained by the plurality of actuators of each plate.

Abstract: In this molded surface fastener, plural engaging elements having a stem portion and an engaging head portion formed integrally on the stem portion are standing on the base portion, at least one pawl portion having a pawl width dimension narrower than a width dimension at a boundary between the stem portion and the engaging head portion is protruded on an outer peripheral edge part of the engaging head portion, and a back surface of pawl of the pawl portion is formed at different angles with respect to a back surface of head portion of the engaging head portion. Such a molded surface fastener of the present invention has a substantial engaging force with respect to a female surface fastener and can make a texture of its surface comfortable.

Abstract: A substrate holder for an inkjet printer is described herein. The substrate holder has a contact member having a contact surface and a carriage surface opposite from the contact surface and a carriage coupled to the carriage surface, the carriage having a direction of motion extending in a first direction. The carriage has a base member and a linear slide mechanism coupling the base member to the contact member, the linear slide mechanism oriented with a direction of linear displacement at an acute angle with the direction of motion in a plane parallel to the contact surface.

Abstract: A device for the stereolithographic additive manufacturing of metallic components includes a material support for a material layer of a material to be polymerized, the surface of which forms a building plane, a material container for fresh material, which opens into the building plane via a material feed opening, a build platform movable between a position flush with the building plane and a lowered position perpendicular to the building plane, a doctor blade movable between the material container and the build platform for applying the material layer on the building plane, and an exposure unit for position-selective exposure of the material layer on the build platform or on a component partially built on the build platform. The material support is exchangeably arranged in the device.

Abstract: Various embodiments provide a method of manufacturing a high-resolution structure using a size-tunable hydrogel. According to various embodiments, a basic structure may be fabricated. A temporary structure made of a hydrogel may be fabricated by applying a hydrogel to the basic structure. The temporary structure may shrink by dehydrating the hydrogel. This process may be repeated to fabricate smaller structures. The final structure may be fabricated using the temporary structure or the basic structure.