Abstract: The present invention provides a bottom plate of a resin tank for three-dimensional printing, which is manufactured through the following steps: substrate surface roughening step: treating the upper surface of a transparent substrate by using a plasma, or disposing a composite film on the upper surface of the transparent substrate to form a non-smooth surface structure having pores; substrate surface modification step: sequentially performing an activation treatment and a fluorination treatment on the upper surface of the transparent substrate; and stabilizer filling step: applying a stabilizer to the upper surface of the transparent substrate to fill the stabilizer penetrates into the pores on the upper surface of the transparent substrate. The low surface energy film reduces the adhesion of the hardened photosensitive material, and the stabilizer maintains the structure of the low surface energy film, so that the resin tank bottom plate has both oleophobic and hydrophobic properties.

Abstract: The invention allows for the simplified operation and maintenance of a hookah apparatus. In a first aspect of the present invention, an electrically-powered hookah apparatus is provided. The hookah apparatus comprises a vessel and a housing. The housing comprises a first section and a second section. The first section is removably fitted over the vessel, and the second section comprises a combustion unit including an electronics unit. The combustion unit comprises a capsule holder configured to hold capsules of combustible material and a heating unit configured to heat the capsules. The electronics unit comprises a power unit and a programmable controller connected thereto, the controller configured to controllably power the heating unit. In a second aspect of the present invention, a capsule of combustible material is provided. In a third aspect of the present invention, a method of operating an electrically-powered hookah apparatus is provided.

Abstract: A 3D printing apparatus can include a base composite material channel configured to pass a base composite material therethrough, a fiber strand channel configured to pass a fiber strand therethrough, and a fiber feeding component configured to feed the fiber strand through the fiber channel. The fiber strand can be separate from the base composite material before entering the 3D printing apparatus, and the fiber feeding component can facilitate combining of the fiber strand with the base composite material to form a layer of a 3D printed building component with the fiber strand within the base composite material. An impregnation material channel may be included to pass an impregnation liquid or material to impregnate the fiber strand while the fiber strand is within the 3D printing apparatus.

Abstract: A platen assembly for use with an extrusion-based 3D printer includes a grid assembly comprising at least a 4×2 framework of interlocked perpendicular x direction beams and y direction beams, providing a substantially planar upper surface and a bottom surface. The platen assembly includes a platen comprising a thin metal sheet supported on the upper surface of the grid assembly and secured to the grid assembly such that the top surface provides a substantially flat build surface. The x direction beams, the y direction beams and the platen are constructed of substantially a same thermal expansion properties, and wherein the build surface of the platen has a build surface area of at least 400 square inches and maintains its flatness to within a flatness tolerance of 0.020 inches over a temperature range of at least 20 C-300 C.

Abstract: The present disclosure relates to an adjustable mount apparatus. The apparatus may have a material support having a plurality of support legs, with each one of the support legs having a distal portion. A base assembly is used which has a plurality of laterally extending leg portions. A plurality of adjustably positionable capture subassemblies are slidably disposed within the laterally extending leg portions for releasably coupling to the distal portions of the support legs to hold the material support in a stable manner on the base assembly. A plurality of moveable elements, each being independently associated with one of the capture subassemblies, enable highly controlled linear movement of the capture subassemblies. Each capture subassembly engages with the distal portion of one of the support legs to exert a clamping force thereon, to affix the material support securely to the base assembly.

Abstract: A process of overmolding a frame of a portable eyewear electronic device and a frame produced by the process is presented. A frame that includes a first material and includes a releasably mountable feature is attached to the mold in a desired position and does not contact other areas of the mold. The mold is filled with a second material to at least partially encase the frame insert.

Abstract: A method of printing on fabric includes: (a) loading a thermoplastic material into a nozzle of an extruder, such as an extruder of a three dimensional (3D) printer; (b) positioning a substrate that includes fabric in a print area proximate to the nozzle; (c) heating the thermoplastic material in the nozzle to a temperature that is equal to or greater than a melting point temperature of the fabric; and (d) extruding the heated thermoplastic material from the nozzle as a filament onto the fabric to yield a printed pattern on the fabric.

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 three-dimensional modeling device includes a plasticizing section for plasticizing a material to generate a shaping material, a stage on which the shaping material is stacked, a nozzle which has a nozzle opening, and ejects the shaping material from the nozzle opening toward a modeling area on the stage, a transfer mechanism section for changing a relative position between the nozzle and the stage, and a heating section having a heater and a heating member for heating the shaping material stacked in the modeling area with heat supplied from the heater. The nozzle opening is located between the stage and the heating section in a stacking direction of the shaping material, the heating section is configured so that a relative position to the stage changes together with the nozzle, and the heating member covers at least the modeling area when viewed along the stacking direction.

Abstract: A magnetic powder dispensing structure for tablet printing comprises a powder collecting device, a printing device, a guide rod device and a printing platform, the powder collecting device comprises a powder collecting box, a powder feeding device, a plurality of stirring rods, a plurality of rocker arms, a pressing rod, a driving motor and a first electromagnetic attraction device; the printing device comprises a second electromagnetic attraction device. The printing device and the powder collecting device are capable of moving laterally through the guide rod device, and capable of being magnetically attracted with each other or detached from each other by energizing or de-energizing the first electromagnetic attraction device and the second electromagnetic attraction device, thereby the powder collecting device can be driven when dispensing powder, and the printing device is capable of operating independently during printing.

Abstract: In one example, an apparatus for supplying material to an additive manufacturing platform comprises a rotatable delivery module comprising a vane; and a plurality of distribution elements. In use, the rotatable delivery module is controllable to rotate the vane to a supply position to enable material to be supplied to an additive manufacturing platform from the vane. The vane and the plurality of distribution elements are arranged such that during the rotation: the vane provides a dose amount of material from a material supply module for supply to an additive manufacturing platform and at least one of the plurality of distribution elements distributes material within the material supply module so that the vane supplies a substantially uniform dose of material along the length of the vane to the additive manufacturing platform.

Abstract: A system and method for manufacturing a space-based component in space. The method includes collecting and capturing space debris directly from and suspended in space, heating the collected space debris using solar radiation in a manner that separately and independently melts different constituent elements and compounds in the space debris, collecting the different constituent elements and compounds as they are being separately melted, storing the elements and compounds in a molten, solid or vapor form, and fabricating the space-based component using the stored elements and compounds.

Abstract: A three-dimensional (3D) printing system for manufacturing a 3D article includes a resin vessel, a build tray, a movement mechanism, a light engine, a housing, a gas handling system, and a controller. The resin vessel includes a transparent sheet on a lower side. The housing defines two chambers including an upper chamber and a lower chamber. The upper chamber is in fluidic communication with the resin contained by the resin vessel. The lower chamber is in fluid communication with a lower surface of the transparent sheet. The controller is configured to (a) operate the gas handling system to reduce and control a partial pressure of oxygen in the upper and lower chambers, (b) operate the movement mechanism and the light engine to form the 3D article in a layer-by-layer manner.

Abstract: A laser processing apparatus includes: a laser light source configured to emit a laser beam; an optical scanner located along a path of the laser beam and configured to adjust the path of the laser beam; a lens unit located along the path of the laser beam, the lens unit being configured to condense the laser beam; a first adapter located between the lens unit and the optical scanner and coupled to the lens unit; and a second adapter located between the first adapter and the optical scanner, the second adapter being coupled to the first adapter and the optical scanner.

Abstract: A 3D printing system may include a tank in which a bottom of the tank is formed by a radiation-transparent flexible membrane, a spill tray with an outer wall configured to contain liquid resin that inadvertently leaks out from the bottom of the tank, and a light source configured to project radiation towards the bottom of the tank. The spill tray may contain an inner opening that allows the radiation from the light source to pass through the spill tray to the tank. A 3D printing system may also include a mask assembly which comprises a mask with pixels configurable to be individually transparent or opaque to portions of the radiation projected from the light source and a mask assembly receiving member configured to receive the mask assembly. The mask assembly may also include a rigid guide portion that is insertable into a slot of the mask assembly receiving member.

Abstract: The invention relates to a disposable 3D printer cartridge for inserting into an exposure device for producing an object which is constructed in additive layers, wherein the cartridge contains at least one polymerizable liquid, or a polymerizable liquid can be filled into the cartridge. The cartridge comprises: a first lower housing part, a second upper housing part which can be removed from the first housing part, a support platform which forms the lower face of the second housing part, the object constructed in additive layers being arrangeable on the exterior of the support platform during the construction of the object, and a construction element which corresponds to the base of the first housing part. The layers of the object can be polymerized on the inner face of the construction element, and the inner face of the construction element has a non-stick coating.

Abstract: A fabrication table includes a separable portion and a supporter. The separable portion is formed of a heat-resistant member on which a three-dimensional fabricated object is to be placed. The supporter is formed of a rigid material and configured to support the separable portion.

Abstract: A method and a device are described for creating a pattern (7) of a first fluid in a second fluid, the density of which is adapted, as a function of the viscosity thereof, to the density of the first fluid, and wherein the two fluids are immiscible or are miscible only with difficulty, said device comprising a storage container (1) for the first fluid and an injector which is connected to the storage container (1) and is associated with a positioning unit (5).

Abstract: A method, apparatus, and system are provided for the printing and maturation of living tissue in an Earth-referenced reduced gravity environment such as that found on a spacecraft or on other celestial bodies. The printing may be three-dimensional structures. The printed structures may be manufactured from low viscosity biomaterials.

Abstract: A midsole and a method of manufacturing it includes placing first and second preforms into a midsole recess of a mold, with first and second portions of the mold defining a first overflow chamber connected to the first recess; closing the mold by positioning the first and second portions in contact with one another; heating the mold for a predetermined period of time at a predetermined temperature such that the first and second preforms melt and bond together to form a midsole, with a portion of each of the first and second preforms flowing into the first overflow chamber to form a first overflow portion; removing the midsole from the mold; allowing the midsole to expand; and cutting away the first overflow portion.