Abstract: Provided are a material feeding mechanism, a multi-material unit and a 3D printing system. The material feeding mechanism includes a main body, an unloading clutch assembly connected to the main body, and a driver assembly configured to drive the unloading clutch assembly to be switchable between a first position relative to the main body and a second position relative to the main body. In the first position, the unloading clutch assembly is drivingly coupled to a reel to rotate the reel under driving of the driver assembly to wind a wire around the reel. In the second position, the unloading clutch assembly is drivingly separated from the reel.

Abstract: Embodiments of the present invention may provide methods and systems for recycling asphalt shingles (1) perhaps in a chemical solution (2) to provide oil free recyclable fiberglass (6), oil free recyclable sand (7), and even recyclable oil (8). The present invention may provide a screened tubular rotating equipment (16) may be at least partially immersed (18) in a tank (17) of a chemical solution (2) to treat the asphalt shingles (1).

Abstract: This invention concerns a module for insertion into an additive manufacturing apparatus. The module comprising a frame mountable in a fixed position in the additive manufacturing apparatus, the frame defining a build chamber and a dosing chamber. A build platform is movable in the build chamber for supporting a powder bed during additive manufacturing of a part. A dosing piston is movable in the dosing chamber to push powder from the dosing chamber. A mechanism mechanically links the build platform to the dosing piston such that downward movement of the build platform in the build chamber results in upward movement of the dosing piston in the dosing chamber.

Abstract: A method for manufacturing a part includes fabricating an object in an additive fabrication stage, the object including a solid mold forming a cavity in the shape of a part with uncured or incompletely cured build material disposed therein. The build material in the cavity is cured in a curing stage that occurs at least partially after the additive fabrication stage. The build material undergoes a phase change mechanism occurring during the additive fabrication stage and a distinct polymerization mechanism occurring during the curing stage and at least partly after the additive fabrication stage of the object and cures the build material by a polymerization process.

Abstract: Apparatus for forming microscopic features on a film layer are disclosed. An example apparatus includes a tool having an outer surface defining a first microscopic pattern. The outer surface of the tool to engage a thermoplastic film applied to a surface of a structure. The outer surface is structured to frictionally engage the thermoplastic film and rotate relative to the thermoplastic film with a rotational speed that is sufficient to generate heat via friction between the outer surface and the thermoplastic film to heat the thermoplastic film to malleability to form a second microscopic pattern in the thermoplastic film.

Abstract: A system for applying a building material, including: a movement device for modifying a site of application in a space; a first component of the building material; a second component of the building material; a mixer for mixing the first component and the second component, the mixer including a drive module with a first coupling element and a mixing chamber module with a second coupling element, the drive module and the mixing chamber module being detachably embodied, and the drive module and the mixing chamber module being actively interconnected in an application state of the system by means of the coupling elements.

Abstract: A device produces three-dimensional objects layer by layer in a powder bed fusion process. The device includes a building space, at least one energy source, a building area with a building space platform and a building space container laterally confining the building space platform. The building space platform has an upper side, facing a powder, and an underside, facing away from the powder. The upper side of the building space platform includes a material with a thermal conductivity of at least 20 W/(m·K) and the underside of the building space platform includes a material with a thermal conductivity of a maximum of 0.5 W/(m·K). The contact surface of the upper side of the building space platform with respect to the powder or with respect to the cooling medium is raised by at least 20% in comparison with the planar surface of a building space platform.

Abstract: A method of additively manufacturing parts by selectively cooling a liquefied thermoplastic material.

Abstract: In an emboss fabrication apparatus, an emboss roll includes, on an outer periphery, a molded portion having a concavo-convex shape. A first backup roll sandwiches, together with the emboss roll, a base material. A first heating unit heats the first backup roll. A second backup roll sandwiches, together with the emboss roll, the base material. A contact unit is provided opposite to the emboss roll in a first range. The contact unit contacts a back face of the base material.

Abstract: A system and method for vaporizing space debris in space. The system includes a spacecraft body, a primary solar concentrator mounted to the spacecraft body that collects and focuses solar flux from the sun, and a secondary solar concentrator positioned at a focal point of the primary solar concentrator that refocuses the focused solar flux. A manipulator arm coupled to the spacecraft body grabs the space debris in space and positions it at a location where the refocused solar flux vaporizes the debris. The secondary solar concentrator can be a point-source concentrator, the primary solar concentrator can be a parabolic mirror, a Fresnel lens or a light focusing element or assembly, and the space debris can be a retired spacecraft or launch vehicle upper stage or component.

Abstract: A powder bed machine including a distribution device, which is configured to be charged with process material. The powder bed machine has a residual powder tank within the manufacturing process, wherein the residual powder tank holds a surplus of the process material. The powder bed machine is positioned on feet and weighing cells are located in the feet.

Abstract: A method of separating excess resin from at least one object, includes: (a) stereolithographically producing at least one object on at least one carrier platform, each carrier platform having a planar build surface to which at least one object is connected, each object carrying excess resin on a surface thereof; then (b) mounting each carrier platform to a rotor; (c) centrifugally separating excess resin from each object by spinning the rotor with each carrier platform connected thereto while each object remains connected to each carrier platform; and then (d) removing each carrier platform from the rotor with each object thereon, with excess resin separated therefrom.

Abstract: A filling apparatus for filling a mold volume of a mold with mold material. The filling apparatus comprises a frame, a retention plate mounted to the frame, and a shovel mounted to the frame, the shovel being complementary to the retention plate to define a reservoir for containing the mold material. The shovel is movable relatively the frame to open the reservoir for the mold material to fall onto the mold to fill up the mold volume, to scrape the surface of the mold and thereby to push exceeding mold material over the retention plate, and to abut the retention plate to form the reservoir. The filling apparatus is adapted to refill the reservoir with exceeding mold material once the mold volume is filled with mold material.

Abstract: Glove stripping apparatuses for fully stripping a partially stripped elastomeric dip-moulded glove from a dip-moulding former comprises a gripper having first and second gripping members movable relative to each other, an abutment, an open space, and an actuation system. Also, production lines for producing elastomeric dip-moulded gloves, methods for fully stripping gloves from dip-moulding formers, and production line processes.

Abstract: The present invention relates to an inhaler comprising: an assembly including a heater element arranged in the inhaler to be proximal to a substrate region configured for supporting a vapour or atomiser precursor substrate; wherein the assembly is configured such that the heater element is operative to achieve and maintain a target temperature in the substrate region throughout a period corresponding to a plurality of consecutive uses of the inhaler.

Abstract: A method for increasing the injection speed of a melted plastic injection device for injecting said melted plastic into a molding cavity (51), said injection device comprising a first cylinder (1) provided with a tubular casing (2) defining a first inner diameter d1, and a first piston (3) slidable inside said tubular casing (2), adapted to be loaded with melted plastic and to inject said melted plastic toward the molding cavity (51); a second cylinder (21) constrained to the first cylinder (1) and provided with a second piston (23) which rod (24) is connected to the first piston (3) and is adapted to actuate said first cylinder (1) during an injection operation; the method comprising the steps of: —releasing second cylinder (21) and first cylinder (1) by extracting the first piston (3) from the tubular casing (2); —coaxially inserting a tubular body (12), defining a second inner diameter d3 which is smaller than the first inner diameter d1, into the tubular casing (2); —disconnecting the first piston (3) fro

Abstract: An injection molding machine includes a nozzle with a nozzle body having inner and outer flow channels, and at least one intermediate flow channel in between. A valve stem is slideable in the inner flow channel and moveable between open and closed positions. In a first closed position, the valve stem blocks an outlet of the inner flow channel but not outlets of the outer or at least one intermediate flow channels. In the open position, melt exiting the at least one intermediate flow channel simultaneously intersect melt exiting the outer and inner flow channels. The flow channels may be arranged concentrically. The outlets of the flow channel may be separated by a knife edge. The outlets of the flow channels may be adjacent to one another. The inner and outer flow channels may be substantially perpendicular to one another, but not to the at least one intermediate flow channel.

Abstract: An apparatus for preventing photocuring of biomaterial in a discharge nozzle and in a dispenser of a bio 3D printer includes a driving unit for providing a driving force, a shutter member that receives the driving force from the driving unit and to move between a first position not covering the discharge nozzle and a second position covering at least the discharge nozzle in a reciprocating manner, and a control unit for controlling the discharge nozzle. The driving unit, the shutter member, the discharge nozzle, and the plurality of light sources constitute a head unit in an integrated manner. The head unit includes an end plane. The shutter member and a distal end of the discharge nozzle are positioned near a center of the end plane. The plurality of light sources are positioned on the end plane with the shutter member and the discharge nozzle therebetween.

Abstract: A method is disclosed and includes providing a first data set marking an object cross-section, determining whether the length of a connecting line undercuts a specified minimum dimension, generating a second data such that, in the event falling the minimum dimension is undercut, a position lying within an object cross-section on the connecting line is marked as a position not to be solidified or to which a reduced radiation to be supplied, and for a position lying outside of the object cross-section, positions of an object cross-section directly above or below that are adjacent to this position are marked as positions not to be solidified or to which a reduced radiation is to be supplied, and integrating the second data set into the control command set.

Abstract: According to some aspects, an additive fabrication device is provided configured to form layers of material on a build platform, each layer of material being formed so as to contact a container in addition to the build platform and/or a previously formed layer of material. The additive fabrication device may comprise a container and a wiper, wherein the wiper comprises a wiper arm and a wiper blade coupled to said wiper arm using a pivoting coupling.