Abstract: The invention relates to the field of 3D printing, particularly to the extrusion method (Material Extrusion), i.e., the layer-by-layer deposition of a molten building material through an extruder head (an extruder). The present device allows for using a wide range of materials when printing, such as liquids, pastes, and melts (including metals), as well as for using pre-treated secondary raw materials. An extruder has, within a single housing, a loading chamber and a removable working chamber having a three-sided rotor (piston) moving therein and an eccentric drive shaft, as well as an extruder tip connected to the housing, said tip having a removable nozzle on its end, a built-in heat sensor, and a built-in heating element. At least one heating element and heat sensor are disposed within the housing. The extruder is disposed on a mounting frame having a drive motor, and said frame fastens to a moving platform of a 3D printer.

Abstract: A printer unit (100) for a 3D-printing apparatus for deposition of a printing material, as well as a method of 3D printing, is provided. The printer unit comprises a printer head (105) comprising a nozzle (110). The printer head is resiliently suspended in the printer unit in a vertical direction by at least one resilient means (120), allowing a vertical movement of the printer head during deposition of the printing material. The suspended printer head in its equilibrium is positionable above the underlying material at a vertical distance (?z1) before deposition. During deposition of printing material, the at least one resilient means is configured to become biased by a vertical force (F3) on the nozzle from the printing material on the underlying material, such that the printer head moves from its equilibrium into a position at a desired vertical distance (?z1) from the underlying material.

Abstract: Printhead (10) for a 3D printer, comprising an operational volume (17) for holding feedstock (20), the viscosity of which can change, the operational volume (17) being variable by moving a plunger (31, 31a, 31b) and being provided with an outlet (16) through which the feedstock (20) can be extruded by moving the plunger (31, 31a, 31b), the plunger (31, 31a, 31b) being equipped with temperature control means (36).

Abstract: A system is disclosed for additively manufacturing a composite structure. The system may include a support, and a print head connected to and moveable by the support. The print head may have an outlet configured to discharge a continuous reinforcement at least partially coated in a matrix. The system may also include at least one doser located inside the print head and configured to at least partially coat the continuous reinforcement with the matrix, a sensor located downstream of the at least one doser and configured to generate a signal indicative of an amount of matrix coating the continuous reinforcement, and a controller in communication with the sensor and the at least one doser. The controller may be configured to direct a feedforward command to the at least one doser to cause the at least one doser to advance matrix toward the continuous reinforcement during passage of the continuous reinforcement through the print head, and to selectively adjust the feedforward command based on the signal.

Abstract: Provided is an apparatus for manufacturing a three-dimensional object that may allow a support material to land on a table before a modeling material irrespective of the moving direction of a carriage. The apparatus includes a modeling material head that ejects an ink for object shaping, support material heads that eject an ink for supporting the three-dimensional object, color ink heads that eject color inks, curing units for curing the ejected inks, and a flattening roller unit with a flattening roller used to flatten surfaces of the ejected inks. In the apparatus, one of the curing units, the flattening roller unit, one of the support material heads, the modeling material head, the color ink heads, the other support material head, and the other curing unit are arranged and mounted in the carriage in the mentioned order from one side to the other in the main scanning direction.

Abstract: In a device for the additive manufacturing of a shaped body, comprising a construction platform, at least one printing head for applying material layer by layer to the construction platform or the shaped body at least partially constructed on the construction platform, a positionable carrier for the at least one printing head, a positioning system for the carrier, a holder for a material stock, and a supply device for supplying material from the material stock to the at least one printing head, the holder for the material stock, the supply device and the printing head are arranged in a unit designed as an exchangeable insert.

Abstract: An imprinting apparatus, a method of manufacturing an article, with a template having at least one mass velocity variation feature in a region that alters the filling rate of formable material in the second region surrounding a pattern region. The altered filling rate varies from a first filling rate, at a center of an outer edge of the region to a second filling rate, at corners of the outer edge of the region. The second filling rate is greater than the first filling rate.

Abstract: A replica manufacturing apparatus performs imprint processing of forming a pattern of an imprint material on a replica substrate using a master mold, processes the replica substrate with the formed pattern to manufacture a replica mold, and transfers data of a condition concerning the imprint processing to a management apparatus. An imprint apparatus acquires the data from the management apparatus, and performs the imprint processing of forming a pattern of an imprint material on a substrate using the replica mold.

Abstract: A mold insert has at least one filament cavity and a stack of at least a first and second insert plates, wherein the first plate has a front face that closely abuts a front face of the second insert plate. A portion of the a filament cavity is provided in at least one of the front faces of the first and second insert plates such that the filament cavity is open at a top surface of the mold insert but does not extend to a bottom surface of the mold insert. A venting cavity is provided in the same front face of the insert plate in which the portion of the at least one filament cavity is provided. The venting cavity, which is in air-conducting connection with the blind-hole end of the filament cavity, has a depth between 1 ?m and 20 ?m.

Abstract: To manufacture a sprue-bush which is capable of suitably cooling a melt raw resin in a raw resin-flow path as a whole, there is provided a method for manufacturing a sprue-bush, wherein a shaped part is located on a base part to manufacture the sprue-bush, the base part comprising a raw resin-flow path and a cooling medium-flow path, wherein, in the shaped part, a downstream raw resin-flow path portion is located and a downstream cooling medium-flow path portion is also located, the downstream raw resin-flow path portion corresponding to a downstream side region of a raw resin-flow path of the sprue-bush, the downstream cooling medium-flow path portion being positioned around the downstream raw resin-flow path portion and corresponding to a downstream side region of a cooling medium-flow path of the sprue-bush, and wherein the downstream cooling medium-flow path portion is located to surround the downstream raw resin-flow path portion.

Abstract: An additive manufacturing system has a plurality of manifolds in an extruder. Each manifold is connected to at least one nozzle of the extruder so the at least one nozzle extrudes thermoplastic material through a corresponding aperture in a faceplate mounted to the extruder. A plurality of valves is configured between each manifold and each nozzle connected to the manifold so the nozzles connected to a manifold extrude thermoplastic material from the manifold selectively. The faceplate is also configured for rotation about an axis perpendicular to the faceplate so different orientations of the nozzles and the apertures of the faceplate can be obtained. The different manifolds of the extruder enable a plurality of thermoplastic materials having different properties to be extruded simultaneously so the materials can join to one another while the materials are at an elevated temperature.

Abstract: An apparatus may include a substrate holder configured to hold a substrate. The substrate holder may include a first chucking region having a first area and an adjacent region extending from the chucking region. The apparatus may also include a superstrate holder configured to hold a superstrate. The superstrate holder may include a second chucking region having a second area. The second area may be larger than the first area and the superstrate holder faces the substrate holder forming a first gap between the adjacent region surface and the superstrate and a second gap between the substrate and the superstrate. The apparatus may also include a gas supply system between the first gap and the second gap. The superstrate holder may alter a shape of the held superstrate to decrease the first gap and increase the second gap.

Abstract: A manufacturing method of a three-dimensional formed object includes disposing a first forming material on a forming table to form a plurality of structures which are separated from each other, and disposing a second forming material for forming the three-dimensional formed object such that the three-dimensional formed object is supported by the plurality of structures in a state of being separated from the forming table.

Abstract: The present invention relates to a device (10) for controlling supply of a filament (14). The device (10) includes a grooved rotatable wheel over which the filament (14) runs and biasing means (22 & 24). The wheel (12) has a hub (16) and a pair of flexible flanges (18 & 20) extending radially from the hub (16). The biasing means (22 & 24) are adapted in use to force the flexible flanges (18 & 20) to bend towards each other so as to embrace the filament (14) thereby pressing the filament (14) tight against the hub (16).

Abstract: The present disclosure relates to a bioprinter spray head assembly and a bioprinter, wherein the bioprinter spray head assembly comprises an outer nozzle having a second channel and an inner nozzle having a first channel, the inner nozzle is coaxially provided within the second channel, the first channel forms a first material channel, and an annular space between the outer nozzle and the inner nozzle forms a second material channel, which surrounds the first material channel at an outlet of the first material channel, for converging a second material sprayed from an outlet of the second material channel toward a first material sprayed from the outlet of the first material channel, so as to form a fluid printing unit.

Abstract: A manufacturing method for a shaped article is provided and includes manufacturing the shaped article by stacking a plurality of layers on one another, wherein the shaped article comprises a light reflective layer, being formed from an ink having light reflectiveness; a decorative layer; and a transparent layer, being formed from a transparent ink, wherein the decorative layer is formed on an outer side of the light reflective layer, and the transparent layer is formed on an outer side of the decorative layer; and a layer forming process, forming a part of the transparent layer and a part of the decorative layer in this order from an end side toward a center side of at least two of the plurality of layers.

Abstract: An electronic cigarette or vaporizer may include a shell and a cartomizer receivable within a chamber within a portion of the shell. A basin may be included in the cartomizer to hold a vaporizable fluid, dry substance, or other vaporizable substance such as a wax. A heating element may be provided within the basin which may have a flexible non-conductive material and a flexible conductive material.

Abstract: The invention relates to a print head (100) for an additive fused deposition modelling method having a thermoplastic construction material, comprising:—at least one inlet (10) for receiving a construction material (11) into the print head;—at least one melt region, for melting the construction material (11), which is arranged downstream of the inlet (10) and is fluidically connected, at least temporarily, to the inlet (10); and—at least one first outlet (30) that is fluidically connected, at least temporarily, to the melt region (20), for discharging melted construction material (12) out of the melt region (29) at a first discharge rate; wherein—the print head (100) also comprises at least one second outlet (40) that is fluidically connected, at least temporarily, to the melt region (20) for discharging melted or non-melted construction material (11, 12) out of the melt region (20) at a second discharge rate; and—the first discharge rate can be influenced by a first discharge rate influencing device (50) for

Abstract: The object of the present invention consists of a device that allows for the easy creation of 2-dimantional and 3-dimensional plastic objects using a 3-D drawing pen. The device object of the present invention is comprised of a flexible, heat resistant, non-sticky, transparent silicon mat characterized by the presence of grooves cut in its surface, the path of which can be of any geometric or non-geometric shape. The groove works as a guide for the 3-D drawing pen user by allowing such user to stretch the melted plastic, extruded by the 3D pen, on its bed, and within its walls, so that once hard the plastic object is exactly of the shape of the groove and its path, and not an imprecise shape caused by the unstableness of the hand of the free-hand 3-D pen user.

Abstract: A long sheet may travel lengthwise through a fabrication system. The sheet may be much longer than it is wide or high. One or more objects that are being fabricated may be attached to the sheet. The sheet may move, step by step, through a vat of liquid photopolymer while a digital micromirror device projects a sequence of images unto a surface of the liquid. At each step, a projected light image may cure liquid photopolymer, thereby producing solid, cured polymer that becomes part of an object being fabricated. The sheet may be included in the final fabricated object, or may be a sacrificial material that is removed from the final fabricated object. Alternatively, the sheet may be in the shape of a loop. Or, the sheet may be detached from the final fabricated object and then fed through the system again.