Abstract: Component carrier for an additive manufacturing device, wherein the component carrier comprises a construction surface, on which a component to be manufactured is disposed during the operation of the manufacturing device, wherein the component carrier comprises a sealing surface which radially surrounds the construction surface, and method for post-processing a component manufactured according to an additive manufacturing process using such a component carrier.

Abstract: Provided is a binder jetting 3D printer capable of continuous printing, wherein a box assembly is supplied by a horizontal movement guide means, a 3D object is built with binder jetting within a build box, and the box assembly in which the 3D object is built is withdrawn, thereby printing 3D objects continuously. In particular, provided is a binder jetting 3D printer capable of continuous printing, wherein a box assembly including a powder supply box and a build box is simplified by integrating the boxes and a lifting and lowering process of a supply plate and of a build plate is facilitated, thereby reducing the time taken for a 3D printing process and thus improving productivity.

Abstract: A spackling tool for spreading and smoothing spackling includes a main planar flat blade made of a thin resilient material. The blade is substantially rectangular in shape with left and right side edges and front and rear edges. In one embodiment, a left blade is formed by bending the material forming the main blade upwardly at an angle of substantially 90° and a right blade is formed in substantially the same way at the right side edge of the main blade. A handle is secured to the rear edge of the main blade at the midpoint thereof and extends away from the main blade in substantially the same plane as the main blade. In a second embodiment, the left and right blades are hinged to the main blade so that the angle between them and the main blade can be adjusted.

Abstract: An additive manufacturing apparatus includes a nozzle body discharging a powder and a carrier gas from an opening, a powder supply supplying the powder and the carrier gas to the nozzle body, a flow rate adjuster provided in a supply path of the powder supply to cause a part of a flow of the carrier gas containing the powder to flow into a branch flow path branching from the supply path to adjust a flow rate of the carrier gas containing the powder to be supplied to the nozzle body, and the branch flow path connected to the flow rate adjuster. The branch flow path is connected to a flow path leading to the nozzle body and has a separator for separating the powder and the carrier gas. The carrier gas separated from the powder by the separator is supplied to the nozzle body through the branch flow path.

Abstract: A hot bed deformation tolerance structure for a large-sized continuous fiber high-temperature 3D printer is provided. Size changes caused by thermal expansion of a hot bed are compensated through motion coordination of a secured hot bed support assembly and a motion device, especially for an aluminum alloy material. A Z-direction motion structure of this structure is fixedly mounted with a frame and works at room temperature. A compensation motion module is fixedly mounted with a Z axis and incompletely secured with the hot bed support assembly, and works at room temperature with the Z axis. The hot bed support assembly is incompletely secured and partially in a high-temperature chamber, with a maximum working temperature of 300° C. The hot bed support assembly retains motion redundancy in a direction of thermal expansion deformation, tolerates thermal deformation through a linear motion module, and compensates for metal deformation through horizontal motion coordination.

Abstract: A three-dimensional molding method in which both a support material 2 and a test piece 3 are separately joined to partial regions of a part to be produced 1, which is molded by dispersion of a powder by traveling of a squeegee and sintering of the powder by irradiation of a laser beam or an electron beam, or the test piece 3 is separately joined to a plurality of the support materials 2, or the test piece 3 is joined to a partial region of the part to be produced 1 to mold the support material 2 and the test pieces 3 in the same step.

Abstract: A three-dimensional (3D) printing system for preparing an object made at least partially of an expanded polymer including: a printing device for transporting and depositing a strand of expanded polymer including a blowing agent onto a surface and a 3D movement device for adjusting the position of the printing device in a predefined matrix allowing deposit of the strand of expanded polymer at a predetermined time and precise position within the matrix, the printing device includes: a feed section, a transporting section, a surface melting section, and a terminal printing head section for depositing the expanded polymer strand onto the surface, and all of sections have the same inner diameter, and the surface melting section including a solid-state welding element, a laser beam, a generator of hot gas or liquid and/or a generator of heat.

Abstract: An ice cream scoop having a heat transfer fluid with a high specific heat and a fluid stirring device, having: at least one scoop body, which includes a scoop portion with high thermal conductivity and a handle portion that is connected to the scoop portion along the length direction, wherein the handle portion is formed with at least one cavity in communication with the scoop portion; a heat transfer fluid filled in the cavity, the heat transfer fluid having a specific heat higher than that of the scoop portion; at least one group of heat sink fins connected with the cavity, the group of heat sink fins being disposed along the length direction opposite the scoop portion; and at least one fluid stirring device, which is at least partially extended into the cavity so as to facilitate convection of the fluid along the length direction.

Abstract: A method for manufacturing a three-dimensional shaped object includes: a plasticizing step of plasticizing at least a part of a shaping material containing a thermoplastic resin to generate a plasticized material; a fiber introducing step including at least one of a step of introducing a covered fiber material, which is a fiber material covered with a covering material, into the plasticized material after being discharged from the nozzle opening, and a step of introducing the covered fiber material into the shaping material or the plasticized material before being discharged from the nozzle opening; and a shaping step of shaping a three-dimensional shaped object including the covered fiber material.

Abstract: The disclosure is of and includes at least an apparatus, system and method for a print head for additive manufacturing. The apparatus, system and method may include at least two proximate hobs suitable to receive and extrude therebetween a print material filament for the additive manufacturing; a motor capable of imparting a rotation to at least one of the two hobs, wherein the extrusion results from the rotation; a dynamic force adjustment capable of exerting force on one of the two hobs to urge the force-receiving hob toward the other of the two hobs; and a controller communicatively connected with the dynamic force adjustment and capable of controlling the force exertion thereof.

Abstract: A method for producing a component layer-by-layer includes: providing two or more resin handling assemblies, each including a resin support which has at least a portion which is transparent, each resin support defining a build surface located in a build zone of the respective assembly; executing a build cycle, including: depositing on each build surface radiant-energy-curable resin, the resin on each build surface being a unique material combination; positioning a stage relative to one of the build surfaces to define a layer increment; selectively curing the resin using applied radiant energy so as to define a cross-sectional layer of the component; separating the component from the build surface; cleaning at least one of the component and the stage; and repeating the cycle, for a plurality of layers, wherein at least one of the layers is cured in each of the build zone. Apparatus is described for carrying out the method.

Abstract: A three-dimensional (3D) printing system includes a resin vessel, a fabrication subsystem, a waste collection subsystem, and a controller. The resin vessel is configured to contain photocurable resin. The fabrication subsystem is configured to form the 3D article with layer-by-layer selective curing of the photocurable resin. The fabrication subsystem includes a build plate, a build plate support structure, and a vertical movement mechanism. The waste collection subsystem is attached to the build plate support structure and configured to capture partially polymerized resin as the build plate support structure moves in an upward direction. The controller is configured to (a) operate the vertical movement mechanism to translate the build plate support structure to a lower position and (b) operate the vertical movement mechanism to raise the waste collection subsystem up through the resin and to a position at which partially polymerized resin can be unloaded from the waste collection subsystem.

Abstract: According to some aspects, an additive fabrication device and a build platform suitable for use within an additive fabrication device are provided. The build platform may include a build surface on which material may be formed by the additive fabrication device when the build platform is installed within the additive fabrication device. According to some embodiments, the build platform may include a flexible build layer and at least one removal mechanism configured to be actuated to apply a force to the flexible build layer. Such actuation may cause the flexible build layer to deform, thereby enabling separation of material adhered to the build surface from the build platform. According to some embodiments, the build platform may comprise a restorative mechanism that acts to return the flexible build layer to a flat state so that subsequent additive fabrication may form material on a flat build surface.

Abstract: Disclosed herein are embodiments of a system for use in additive manufacturing methods. The system can comprise a first container, and a first fluid and a second fluid forming a fluid-fluid interface within the first container. The first fluid is between the fluid-fluid interface and the transparent portion of the first container and configured to remove oxygen from the second fluid at the fluid-fluid interface to facilitate polymerization of a monomeric component in the second fluid. The system can also comprise a circulation system configured to circulate the first fluid through the first container such that the first fluid flows between the fluid-fluid interface and the inner surface of the transparent portion of the first container.

Abstract: The present invention generally relates to the printing of materials, using 3-dimensional printing and other printing techniques, including the use of one or more mixing nozzles, and/or multi-axis control over the translation and/or rotation of the print head or the substrate onto which materials are printed. In some embodiments, a material may be prepared by extruding material through print head comprising a nozzle, such as a microfluidic printing nozzle, which may be used to mix materials within the nozzle and direct the resulting product onto a substrate. The print head and/or the substrate may be configured to be translated and/or rotated, for example, using a computer or other controller, in order to control the deposition of material onto the substrate.

Abstract: A process to cure and/or modify the surface of a three dimensional (3D) printed part comprising the steps of immersing a three dimensional (3D) printed part, containing reactive moieties, into a liquid bath at an elevated temperature to effect polymerization of the reactive moieties of the 3D printed part to provide a cured 3D printed part is described. The liquid bath can further contain reactive molecules that can react with the surface of the 3D printed part to provide a coating which alters the surface characteristics of the 3D printed part.

Abstract: Method for manufacturing a composite material part includes injecting a slurry containing a refractory ceramic particle powder into a fibrous texture, draining the liquid from the slurry that passed through the fibrous texture and retaining the refractory ceramic particle powder inside said texture so as to obtain a fibrous preform loaded with refractory ceramic particles, and demoulding of the fibrous preform. The method includes, after demoulding the fibrous preform, checking the compliance of the demoulded fibrous preform. If the preform is noncompliant, the method also includes, before a sintering, immersing the demoulded fibrous preform in a bath of a liquid suitable for decompacting the refractory ceramic particles present in the fibrous preform, and additionally injecting a slurry containing a refractory ceramic particle powder into the fibrous preform present in the mould cavity.

Abstract: The present disclosure provides a 3D printing method including: a resin providing step of providing a dual cure resin; a light curing step of irradiating the dual cure resin by an ultraviolet light to perform 3D printing so as to form an intermediate body having a predetermined lattice shape; a stretching step of applying a stress on the intermediate body in a stretching direction according to a stretching ratio of a predetermined size to stretch and form a stretched body; and a thermal curing step of heating the stretched body to perform thermal curing and shaping so as to form a 3D printing formed body. When the light curing step is performed, a size in a non-stretching direction of the intermediate body is correspondingly pre-compensated based on the stretching ratio. The present disclosure further provides a 3D printing formed body.

Abstract: Methods and systems for high-speed production of nanoparticles with very high product yields are described. Systems utilize concentric micro-scale capillaries arranged to define nanoparticle formation regions that lie along predetermined length(s) of the capillaries. Flow through the formation regions can be laminar during a formation protocol. The system can include on-line analytical tools for real time characterization of products or intermediates. Systems include an additive manufacturing-type deposition at the terminus of the formation section. The deposition area includes a print head and a print bed and provides for random or patterned deposition of nanoparticles. The print head and/or the print bed can be capable of motion in one or more degrees of freedom relative to one another.

Abstract: A hotrunner assembly for an injection molding apparatus includes a hotrunner manifold, a nozzle for conveying liquid resin from an outlet of the hotrunner manifold, a valve pin linearly movable within and along a longitudinal axis of the nozzle to control flow of the liquid resin from the outlet of the hotrunner manifold, an actuator for driving the valve pin, a primary seal disposed radially between the valve pin and walls of a bore extending through the hotrunner manifold, and a secondary seal located axially between the hotrunner manifold and the actuator and circumscribing a section of the valve pin to prevent gases or liquid resin from contacting the actuator.