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: Systems and methods for generating graded lattice structures that can be used as infill for additively manufactured articles. Tailored sectioning and field-based smoothing are modified polygon, e.g., circle, packing algorithms that adjust the size of the circles based on physical field data to adapt the infill generation process to a field expected to be experienced by the article. Molecular dynamically generated lattice infill is based on force balancing a node distribution instead of a circle packing. Field data can be utilized to adjust the spacing of the node distribution according to a force balance equilibrium model that accounts for the field expected to be experienced by the article being additively manufactured. The resultant non-uniform honeycomb structures from tailored sectioning, field-based smoothing, and force-balancing robustly and efficiently address the connection issues with traditional non-uniform lattice structures.

Abstract: A method and system for a three dimensional printing system are described herein. In one example, the three dimensional printing system has a moveable carriage, an array of laser modules and a print controller. In this example, the moveable carriage has a print head arranged to selectively deposit a printing agent on to a layer of build material as the moveable carriage is moved relative to the layer of build material. The printing agent controls localized fusing of the build material on application of energy. The print controller is communicatively coupled to the array of laser modules and controls activation of individual laser modules of the array of laser modules so as to apply, selectively, energy to addressable sub-regions of the layer of build material on which printing agent has been deposited to control fusing together with the deposited printing agent.

Abstract: The present disclosure relates to a method for manufacturing one or more 3D products by additive manufacturing using a layer-by-layer technique and a 3D printing device. The method comprises the steps of; setting a first thickness of a reference layer and forming one or more material layer having a second thickness. The second thickness is set as a multiple of an integer and said first thickness of the reference layer, and performing a binding action on said material layer.

Abstract: A method for manufacturing a deflection member is disclosed. The method may include the step of incorporating a monomer, a photoinitiator system, a photoinhibitor, and/or a reinforcing member. A further step includes blending the monomer, photoinitiator, and/or photoinhibitor to form a blended photopolymer resin. Further steps may be emitting a first wavelength and emitting a second wavelength. A further step may be polymerizing the monomer to form a resinous framework comprising protuberance locked-on to the reinforcing member.

Abstract: An additive manufacturing system configured to: during a first build cycle of an additive manufacturing process for manufacturing a first layer of a build, sampling a first set of sensor data streams via the sensor suite; calculate a first likelihood of failure of the build based on the first set of sensor data streams; in response to calculating the first likelihood of failure within a first likelihood range, flag the build to indicate the first likelihood of failure; and in response to calculating the first likelihood of failure within a second likelihood range greater than the first likelihood range, pause the additive manufacturing process, and notify an operator of the additive manufacturing system of the first likelihood of failure.

Abstract: A system and method is provided to construct a structure using three dimensional printing of extrudable building material to a wall surface of a structure. According to one embodiment, a printing assembly is moveably disposed above the surface, and extrudable building material is applied from a nozzle onto the surface. One or more profilometers measure at periodic intervals along a geometric cross-section of a bead of extrudable building material. One or more controllers compare the measured cross-section to a predetermined, target cross section and one or more controllers periodically change, for example, the rate of application and/or the viscosity of the extrudable building material applied along the longitudinal axis. The nozzle direction can change, and the profilometers can be rotated about the nozzle along different longitudinal axes, or directions, depending on the wall locations being formed.

Abstract: A multi-station stereolithographic group, includes: support and movement apparatus for a modelling plate with respect to a fixed base facing the modelling plate, the fixed base including at least two work stations positioned in respective areas able to be reached by the modelling plate moved by the support and movement apparatus. Such a fixed base includes at least three work stations: at least one first station for forming an object, at least one second station for washing a formed object, at least one third station for stabilising a formed object.

Abstract: There is provided a three-dimensional shaping device that shapes a three-dimensional shaped object by laminating a layer. The three-dimensional shaping device includes: an ejection unit configured to eject a shaping material toward a table; a measurement unit configured to measure the shaping material at a measurement position separated from an ejection position of the ejection unit by a predetermined distance; a position changing unit configured to relatively move the ejection position and the measurement position with respect to the table; and a control unit. A movement range in which the measurement position is moved is wider than a shaping region where the shaping material is deposited on the table.

Abstract: A tire includes a tread portion including a pair of shoulder main grooves and a crown region defined between the pair of the shoulder main grooves. The crown region includes a plurality of crown blocks. A ground contacting surface of at least one of the crown blocks is provided with a first sipe, a second sipe, and a third sipe. The first sipe, the second sipe, and the third sipe are connected with each other at one intersection.

Abstract: Certain examples relate to a build material management system to transport build material from a collection to source to one of a plurality of storage tanks. The storage tank is determined by a controller that compares color of the build material measured by a color sensor with predetermined values. The controller routes the build material to the storage tank.

Abstract: A method for the application of hydrous mineral binder compositions which contain fibres. An aqueous accelerator is mixed with the aqueous binder composition in a mixer shortly before the application. The method is very robust and makes it possible to quickly produce even large moulded bodies having a uniform surface and very good strength development properties.

Abstract: A method and printing system for printing a three-dimensional structure, in particular an optical component, by depositing droplets of printing ink side by side and one above the other in several consecutive depositing steps by means of a print head. In each depositing step a plurality of droplets is ejected simultaneously by a plurality of ejection nozzles of the print head. The print head is moved relative to the deposited droplets in a moving step performed between at least two consecutive depositing steps in such a manner that the droplets deposited in the same position in the at least two consecutive depositing steps are ejected at least partly from two different ejection nozzles.

Abstract: Aspects of this disclosure include a method for repairing a component having narrow passage, a three-dimensional printer, and composition for three-dimensional printing. One embodiment of the method may comprise mixing a filler material for three-dimensional printing with a carrier fluid, and applying a controlled electromagnetic field to bias the filler material towards a repair location in a narrow passage of a component. The method may further comprise coating a ferromagnetic material with the filler material to form a microcapsule, wherein the ferromagnetic material is adapted to interact with the controlled electromagnetic field to attract the microcapsule to the repair location. 3D printing techniques may be used to coat the ferromagnetic core with the filler material.

Abstract: Additive manufacturing processes, such as fused filament fabrication, may be employed to form printed objects in a range of shapes. It is sometimes desirable to form conductive traces upon the surface of a printed object. Conductive traces and similar features may be introduced in conjunction with fused filament fabrication processes by incorporating a metal precursor in a polymer filament having a filament body comprising a thermoplastic polymer, and forming a printed object from the polymer filament through layer-by-layer deposition, in which the metal precursor remains substantially unconverted to metal while forming the printed object. Suitable polymer filaments compatible with fused filament fabrication may comprise a thermoplastic polymer defining a filament body, and a metal precursor contacting the filament body, in which the metal precursor is activatable to form metal islands upon laser irradiation.

Abstract: A method for photon induced material deposition includes providing a first solution, which contains metallate or metal ions, providing a second solution, which contains light sensitive reducing agent, such as semiconductor nanoparticles, mixing the first solution and the second solution to form a reagent on a substrate, and focusing a light source on the reagent to form a mechanically rigid deposition in the focus of the light source.

Abstract: A method for producing a three-dimensional shaped article includes a first shaping step of shaping a first portion of the three-dimensional shaped article by ejecting a shaping material to a stage, and a second shaping step of shaping a second portion of the three-dimensional shaped article having an overlapping portion overlapping with the first portion, and a non-overlapping portion that does not overlap with the first portion, that forms a space between the same and the first portion, and that is in contact with the overlapping portion at one end. In the second shaping step, the overlapping portion is shaped by ejecting the shaping material onto the first portion, and thereafter, the non-overlapping portion is shaped by ejecting the shaping material so as to be in contact with the overlapping portion.

Abstract: Modeling material formulations and formulation systems usable in additive manufacturing of a three-dimensional object, featuring, when hardened, a Shore A hardness lower than 10 and/or a Shore 00 hardness lower than 40, are provided. Additive manufacturing processes utilizing these formulations and formulation systems, and three-dimensional objects obtainable thereby, are also provided.

Abstract: A method of improving production performance of an additive manufacturing system includes obtaining a first production plan and a second production plan, different from the first production plan, for the manufacture of a plurality of objects using a fleet of additive manufacturing apparatus, automatically generating a first allocation of a first quantity of the plurality of objects to the fleet of additive manufacturing apparatus using the first production plan, automatically generating a second allocation of a second quantity of the plurality of objects to the fleet of additive manufacturing apparatus using the second production plan, comparing a production performance of the first and second quantity of the plurality of objects after being manufactured by the fleet of additive manufacturing apparatus, and based on the comparison of the production performance, automatically regenerating the first and second allocations to change the first and second quantities.

Abstract: A tire for a heavy vehicle of civil engineering type, intended to be fitted onto a rim, is provided. The nominal diameter of the tire is at least equal to 25 inches. The tire comprises a tread having a radial thickness HT at least equal to 30 mm. The tread has a composition based on at least one diene elastomer, a reinforcing filler predominantly comprising a filler at least partially covered with silica, an agent for coupling the filler to the at least one diene elastomer and a crosslinking system. The dispersion of the filler in the elastomeric matrix has a Z score of greater than or equal to 70.