Abstract: A gripper for the transportation of an ophthalmic lens comprises: a gripper shaft having a longitudinal shaft axis and a fluid channel extending through the gripper shaft; a connector at the proximal end of the gripper shaft for connecting a flexible supply tube and the proximal end of the gripper shaft; a support movably accommodating the gripper shaft; a spring mounted between the support and the gripper shaft, the spring biasing the gripper shaft distally away from the support; and a gripper head attached to the gripper shaft at a distal end portion thereof, the gripper head having a further fluid channel extending therethrough, the gripper head further having a suction opening which is centrally arranged in a distal end surface of the gripper head, the suction opening being in fluid communication with the fluid channel of the gripper shaft through further fluid channel. The gripper head is configured to be pivotable about a pivot portion of the gripper head.

Abstract: According to implementations of the subject matter described herein, there is provided a robot. The robot includes a motor mounted on a frame; a driving member having a shaft portion mounted to the motor and an output portion configured to engage a downstream driving member; a seal ring coupled to the frame and having an inner annular portion; and a collar secured to the shaft portion and having an outside peripheral surface in contact with the inner annular portion of the seal ring. A robot having a more reliable seal for protecting the motor can be achieved.

Abstract: A gripping cushion device for enhancing comfort while employing an electric clipper includes a cushion that has a concavely arcuate shape such that the cushion defines a parabola. In this way the cushion can be positioned around a handle of an electric clipper. The cushion is comprised of a resiliently compressible material to enhance comfort for a user employing the electric clipper.

Abstract: A shaving unit and/or electric shaver having a lighting module for providing an optical heating function at a skin-contacting surface of the shaving unit. At least one aspect of the invention relates to an encapsulation arrangement for components of the lighting module by means of a potting material which encapsulates, on both an upper and lower side, a carrier to which lighting elements are mounted.

Abstract: A support for enabling cutting of a linear product, such as an eavestrough debris guard, is disclosed. The eavestrough debris guard has a top, two sides, a bottom, and a non-linear profile. The support includes a contoured top complementary to a bottom portion of the non-linear profile. The support includes a plurality of surfaces extending from the contoured top positioned to engage with the two sides of the linear product. The support includes a plurality of contoured portions each coupled to one of the surfaces positioned to engage with the top of the linear product. The support includes a gap passing through the contoured top and the plurality of surfaces shaped and dimensioned to allow passage of at least a portion of a cutting tool.

Abstract: A cartridge adapted to secure reciprocating bread slicer blades including a rectangular frame having a planar surface, the frame having a plurality of pairs of opposed holders, each pair of the opposed holders adapted to releasably secure opposed ends of a corresponding bread slicer blade. The frame is adapted to secure a plurality of aligned bread slicer blades defining a plane offset from the frame planar surface. The frame is adapted to selectively maintain each of the plurality of aligned bread slicer blades in tension.

Abstract: A device, method, and computer readable medium are provided for transitioning risk analysis. The method includes providing a first risk assessment, and providing a second risk analysis program that generates risk assessments based on a transformation model configured to convert risk based on (1) a first reference rate, and (2) one or more risk functions for one or more first instruments, into risk based on a second reference rate. The method includes generating a second risk assessment with the second risk analysis program, based on the first risk assessment and one or more target instruments that incorporate risk based on the second reference rate, the one or more target instruments being associated with a product or service.

Abstract: A die press system includes a die press device including a fixed platen and a moving platen, and accessory parts to be installed on the die press device. The accessory parts include a cutting blade set comprising a first cutting blade having a first tooth profile, and a second cutting blade having a second tooth profile, wherein one of the first cutting blade or the second cutting blade is to be installed on the fixed platen, and a pad set comprising a first padding block comprising a first padding layer composed of a first padding material having a first Shore value, and a second padding block comprising a second padding layer composed of a second padding material having a second Shore value, where the first Shore value is different from the second Shore value.

Abstract: A chainsaw includes a housing including a handle housing portion, a motor housing portion, and a drive housing portion. The handle housing portion has a cavity extending along a longitudinal axis defining a first axis. A motor includes an output shaft having a longitudinal axis that defines a second axis. The chainsaw also includes a driven gear coupled to the output shaft, a sprocket coupled to the driven gear such that rotation of the driven gear rotates the sprocket, and a guide bar extending from the drive housing portion and having a longitudinal axis that defines a third axis of the chainsaw. The first and second axes define an included angle less than 75 degrees, the second and third axes define a second included angle between 110 degrees and 130 degrees, and the first and third axes define an external angle between 150 degrees and 170 degrees.

Abstract: The invention relates to a pointing device (10) for pointing brickwork a method for pointing brickwork and use of the pointing device (10) for pointing brickwork.

Abstract: A concrete mixer vehicle includes a mixer drum, a chute, and a controller. The mixer drum has an inner volume configured to hold a mixture for transportation and placement. The chute is configured to receive mixture exiting the mixer drum and direct the mixture. The controller is configured to receive a selected mode of operation of the mixer drum and the chute. The selected mode of operation is selected from a set of multiple modes of operation of the mixer drum and the chute. The controller is configured to adjust an operation of at least one of the mixer drum or the chute to cause at least one of the mixer drum or the chute to operate according to the selected mode of operation.

Abstract: A slurry sprayer for supplying a slurry to a wire saw during ingot slicing is disclosed. The slurry sprayer includes a main body and a cover plate that is detachable from the main body for cleaning the slurry sprayer. In some embodiments, the slurry sprayer includes an adjustable support that allows the incline angle of the sprayer to be adjusted and allows the vertical and horizontal position of the slurry sprayer to be adjusted. In some embodiments, the slurry sprayer includes two feed openings to allow the slurry pressure to be more equalized across the slurry sprayer.

Abstract: Provided is a method for producing a sheet molding compound, including a step of measuring bulkiness of a carbon fiber aggregate before an impregnation step of impregnating the carbon fiber aggregate with a resin composition. The method for producing a sheet molding compound can produce a sheet molding compound having the excellent impregnation property into carbon fibers regardless of the content of the carbon fibers, and thus can be preferably used for exteriors, structures, and the like of an automotive member, a railroad vehicle member, an aerospace vehicle member, a ship member, a housing equipment member, a sport member, a light vehicle member, a civil engineering and construction member, an OA equipment, etc.

Abstract: A plant of recycling heterogeneous plastic materials comprises: an infeed stage (2) of the plastic material to be recycled, a processing stage (3) of the plastic material fed by said infeed stage (2) and an extraction stage (4) of the plastic material processed in said processing stage (3), wherein said processing stage (3) of the plastic material comprises a rubbing and drying chamber (5) of the fed plastic material suitable for achieving a reduction of the volume and homogenization with drying of the processed material inside said rubbing and drying chamber (5).

Abstract: A mold device of related art has a problem that a total volume of the device becomes large. In an example aspect of the present disclosure, a mold device includes a fixed mold base for supporting a fixed mold, a mobile mold base for supporting a mobile mold, a frame to which the fixed mold base is fixed, provided to extend in a direction in which the mobile mold base is moved, and formed into a wall shape, and holding means for movably supporting the mobile mold base to the frame. The frame is provided along at least one side of the mobile mold base except an upper surface thereof with the mold device installed, and the holding means support the mobile mold base at one side of the mobile mold base.

Abstract: A method for producing a cold casting mold (100) for producing dental molded parts (210) from a mixing compound (200), wherein the cold casting mold (100), having a cavity (110) that corresponds geometrically to the dental molded part (210), is additively constructed from a starting material (150) by means of a 3D printing method on the basis of a digital data set based on a three-dimensional model of the oral cavity of a patient and at least one first opening (111) that opens into the cavity (110) for filling with the mixing compound (200). The invention also relates to such an additively constructed cold casting mold (100) for a method for producing dental molded parts (210) from a sinterable or a light-curing mixing compound (200). The cold casting mold (100) is constructed having at least one second opening that opens into the cavity (110) for discharging gases and/or liquids.

Abstract: A method for producing molded parts from a sinterable mixing compound using a cold casting mold having a cavity that corresponds geometrically to the molded part and at least one opening into the cavity, wherein the mold is additively constructed from a starting material, in particular a 3D printing method using a 3D printer, and wherein the cavity is created on the basis of a digital data set, in particular based on a three-dimensional model of the oral cavity of a patient. The cavity is filled via the opening with the sinterable mixing compound, curing and/or solidifying the mixing compound, wherein gases and/or liquids contained in the mixing compound are discharged from the cavity via the opening, thermally and/or thermochemically decomposing the mold at a temperature from 200° C. to 2500° C. and sintering the mixing compound to hardness at a temperature from 900° C. to 2500° C. until a molded part is obtained.

Abstract: A method for forming a vacuum insulated structure using a prepared core material includes preparing a powder insulation material defining a bulk density, pre-densifying the powder insulation material to form a pre-densified insulation base, crushing the pre-densified insulation base into granular core insulation to define a core density of the granular core insulation, disposing the granular core insulation having the core density into an insulating cavity defined within an insulating structure and expressing gas from the interior cavity of the insulating structure to further densify the granular core insulation to define a target density. The granular core insulation defines the target density disposed within the insulating structure defines the vacuum insulation structure, wherein the target density defines a density in the range of from approximately 80 grams per liter to approximately 350 grams per liter.

Abstract: Press mold for secondary battery a press upper mold; at least two overforming punches arranged to be raised and lowered in the press upper mold; a plurality of forming punches arranged in the press upper mold to be raised and lowered between the overforming punches and the press upper mold; a press lower mold provided with a bridge forming protrusion protruding from an upper surface thereof; the bridge forming protrusion configured to form a bridge to be protruded from the pouch sheet, and a pouch sheet holder disposed to be raised and lowered on the press lower mold and fixing the pouch sheet together with the press upper mold, wherein the plurality of forming punches include a center punch in which a bridge forming groove into which a bridge is inserted is recessed on a lower surface.

Abstract: The present invention provide a forming method of forming a composition on a substrate using a mold, wherein the mold has a contact surface and a cavity, the method comprising: supplying a gas into the cavity so as to increase a pressure in the cavity to deform the contact surface into a convex shape toward the substrate; relatively tilting the mold with respect to the substrate; bringing the contact surface and the composition on the substrate into contact with each other in a state in which the contact surface has been deformed in the supplying the gas and the mold has been tilted in the relatively tilting; and further supplying the gas into the cavity so as to increase a deformation amount of the contact surface after the contact surface and the composition start to contact each other in the bringing.

Abstract: A recorded matter having a three-dimensional image is produced by a method comprising the steps of: applying, to a recording medium including a substrate and a foaming layer provided thereon, a foam-promoting liquid containing water and a foam-promoting component; and heating the foaming layer. The foaming layer contains a binder resin and a foaming particle which foams as heated, while the foam-promoting component lowers a foaming start temperature of the foaming particle. The foaming particle includes a shell layer containing a thermoplastic resin and a volatile material encapsulated in the shell layer. The binder resin contains a water-insoluble resin, while the foam-promoting component contains a compound having no hydroxyl group.

Abstract: A process for manufacturing products made of foamed polymeric material, comprising the following steps: generating, via software, a virtual model (M) of a product to be manufactured in a solid foamable polymeric material; performing a topological optimization via software of the virtual model (M) in order to obtain an optimized virtual model (MO) with areas of differentiated relative density; preparing the foamable polymeric material and inserting it in a mold (1); solubilizing, under pressure, at least one foaming agent in the foamable polymeric material placed in the mold (1) with a pressure profile of the foaming agent variable over time and/or space as a function of the topological optimization; releasing the pressure in order to obtain a product (S) made of foamed polymeric material provided with the above-mentioned areas of differentiated relative density; removing the product (S) made of foamed polymeric material from the mold (1).

Abstract: A molded article of a composite resin containing fibers includes a base resin 1 and a fibrous filler 2 having fibrillated ends in a fiber length direction. An expression Ho × 0.4 ? H ? Ho is satisfied where H is a maximum height for an unbroken first plate-like test piece having a thickness of 1 to 2 mm after the test piece is kept at -10° C. for three hours and then is hit by a dropped weight of 250 g; and Ho is as same maximum height for the unbroken second plate-like test piece only made of the base resin with a thickness of 1 to 2 mm as for the first plate-like test piece. An expression So × 0.4 ? s ? So is satisfied where S is a Charpy impact strength (JIS K 7111) of the molded article, and So is a Charpy impact strength of the molded article only made of the base resin.

Abstract: A vertical injection molding machine includes a mold clamping device configured to clamp a mold and an injection device configured to inject an injection material. The mold clamping device includes a fixed plate, an upper movable plate that is driven up and down with respect to the fixed plate, and a turntable provided on the fixed plate and is rotatable with respect to the fixed plate. In a case the turntable is provided with a plurality of types of molds configured to mold different molded articles, when the turntable is rotated, one type of the molds is switched to a molding target mold and the other type of the molds is switched to a standby target mold, and the molding target mold is clamped by driving of the upper movable plate and is injected with the injection material.

Abstract: In a first step, a circuit sheet is set such that a first region of a second main surface of the circuit sheet is in contact with a plateau portion of a first mold and a second region is not in contact with the first mold. In the first step, a first fixed portion of the circuit sheet is arranged on a first portion of the first mold, and a second fixed portion is arranged on a second portion of the first mold. The first portion is a portion that is higher than the plateau portion and runs along at least one of a first protruding portion and a second protruding portion provided along the plateau portion. The second portion is a portion where the first protruding portion or the second protruding portion is not provided along the plateau portion.

Abstract: Injection mould for producing mouldings having a cavity plate with cavities and a core plate with cores. The cavity plate and the core plate are movable between a closed position, in which each core is respectively arranged in a cavity, and an open position, in which no core is arranged within a cavity. Each moulding space is assigned a neck-ring pair with two neck rings, and the neck-ring pair is arranged on the core plate and is movable between a holding position, in which neck rings of the neck-ring pair are in contact, and a releasing position, in which neck rings of the neck-ring pair are not in contact. To provide an injection mould with which mouldings can be produced and provided for further processing as efficiently as possible, the cores and the cavities are arranged on a curved path.

Abstract: A plastic injection tool for producing a closure cap is divided into first and second mold halves that can be moved relative to one another and an injection nozzle is formed in the first mold half, and sliding jaw tool parts are formed in the second mold half, radially outside a central tool core, which can simultaneously be moved in an ejection direction of the produced closure cap and perpendicular to the ejection direction. A respective partial ejection contour of the cap body is formed in the sliding jaw tool parts. An ejector is also provided for ejecting the produced closure cap. Partial injection contours that are different from one another are formed in sliding jaw tool parts, and a sliding jaw tool part is in contact with the tool core in two regions lying after one another in the ejection direction, before the ejection of the closure cap.

Abstract: A method to predict the remaining useful life of a plasticizing screw for an injection molding machine is provided. The method comprises: creating an energy-pressure ratio distribution estimate for normal operation of the screw for a mold; creating a temporally local energy-pressure ratio distribution estimate from real time data for the screw for the mold; comparing the local distribution with the distribution for normal operation; and generating an alert if the comparison of the two distributions predicts that the remaining useful life is negligible.

Abstract: In one aspect, there is provided an injection molding system configured to operate in a plurality of cycles. The system comprises, amongst other things, a controller that is configured for performing a comparison of a variable pressure setpoint with a target pressure value. The controller is configured to, when the target pressure value is less than the variable pressure setpoint by at least a predetermined lower bound, (i) decrease the variable pressure setpoint to a reduced variable pressure setpoint and (ii) not further decrease the variable pressure setpoint from the reduced variable pressure setpoint until the pump assembly operates for a plurality of stabilizing cycles at the reduced variable pressure setpoint.

Abstract: A vertical injection molding machine includes a mold clamping device configured to clamp a mold, an injection device provided on the mold clamping device, the injection device being configured to inject an injection material, a controller including an operation terminal, the operation terminal provided on an operation side of the vertical injection molding machine, and a safety fence surrounding other three sides of the vertical injection molding machine except for the operation side. Alight curtain and a cover are provided on the operation side. The light curtain includes a plurality of spaced light sources and the same number of light receiving sensors, the light curtain being configured to detect an entry into the mold clamping device from the operation side. The cover is disposed on or above the light curtain.

Abstract: Provided is a laminate that is useful as a temporary support for producing a large-area, high-definition, flexible electronic device, the laminate having stably low adhesive strength between a heat-resistant polymer film and an inorganic substrate even in the case of a large surface area, and having few blister defects. This laminate has an inorganic substrate, a silane coupling agent layer that includes amino groups, and a heat-resistant polymer film in the stated order, the laminate being characterized in that the elemental nitrogen component ratio in an inorganic-substrate-side peel surface after the heat-resistant polymer film has been peeled from the inorganic substrate at 90° is greater than 3.5 at % and no greater than 11 at %.

Abstract: One or more embodiments of the present invention provide an apparatus for applying a mixture of a first compound and a second compound, the apparatus comprising a first extruder for processing a first compound and a second extruder for processing a second compound, wherein the outlet from the first extruder is in fluid communication with a first channel of a housing, and the outlet from the second extruder is in fluid communication with a second channel of the housing, wherein a gear pump is positioned in each channel, wherein a nozzle is in fluid communication with an outlet of the first channel and an outlet of the second channel, and a coextruded continuous strip is produced. The ratio of the first compound to the second compound may be adjusted instantaneously.

Abstract: A film is manufactured from a semi-crystalline plastics material by a method with multiple steps. In step a, the film is shaped using a calender, in which a melt coming from a slotted nozzle is introduced into a nip between two cooling or calibrating rollers. The film is calendered between the two cooling or calibrating rollers. In step b, The film is cooled in a cooling section, which has roller pairs arranged one after the other. A film temperature is changed by changing a temperature of downstream rollers, thereby achieving a maximum number of crystallization nuclei. The film temperature is detected using sensors. In step c, the film is cooled down further to a film temperature that allows the film to be spooled. The temperature of the film is kept in a defined temperature range between 128° C. and 138° C. in step b), thereby preventing the automatic formation of further crystals.

Abstract: A continuous cycle system for moulding single objects from plastic material, including: an extruder including a cylinder extending along a longitudinal axis (L), a screw rotating inside the cylinder about the longitudinal axis (L), the screw having a core and a thread externally coupled to the core and heaters coupled to the cylinder; a moulding machine, configured to receive as input the flow of liquid plastic material from the extruder and including a plurality of moulds, each having a first and a second half mould movable relative to each other between an open position and a closed position.

Abstract: The present invention relates to molded foam having no hollow space caused in a plate-shaped portion. The molded foam comprises a tube body and a plate-shaped portion joined to the outer side of the tube body. The expansion ratio of the molded foam is lower than two, and a value of a thickness B/a thickness A as a relationship between the thickness A of the tube body at the periphery of a point joined to the plate-shaped portion and the thickness B of the plate-shaped portion is less than 2.82.

Abstract: The invention relates to a device for treating container blanks for a container treatment installation. The device comprises a furnace for heating the container blanks. A planar drive system has a base element and a plurality of movement devices for transporting the container blanks. The plurality of movement devices are movable independently from one another relative to the base element. The container blanks can be moved through the furnace by means of the plurality of movement devices.

Abstract: A method for heating a preform (1) comprising a body portion (4) having a thickness which varies progressively along any transverse cross-section between a thick zone and a thin zone of the body portion. The method comprises the following steps: —introducing the preform (1) into a heating apparatus (5) comprising an array of infrared emitters (50) arranged in multiple columns (Cj) and multiple rows (Ri); —setting power levels of the infrared emitters (50) so as to divide the array of infrared emitters into subsets C of columns (SCn); and—heating the preform while translating it in a direction parallel to the rows (Ri), and simultaneously rotating said preform (1) around its longitudinal axis, the rotation and translation speeds, and the power levels of the infrared emitters (50) being set so that the greater the thickness of the zones of the body portion (4), the higher is the power level of the subsets of columns (SCn) facing said zones.

Abstract: - - - Provided is a control method for a manufacturing device for manufacturing a resin container by blow-molding a preform, the method including: acquiring a target value for the temperature inside a heating device for heating the preform to a temperature that is appropriate for blow-molding; acquiring the actual measured value of the temperature inside the heating device, the temperature having been detected by a sensor disposed inside the heating device; calculating the temperature difference between the target value and the actual measured value; and adjusting the heating performance and the cooling performance of the heating device on the basis of the temperature difference.

Abstract: A shaping device which forms a fiber sheet into a shape having a shape change section, said shaping device comprising: a shaping mold which is provided to one side of the fiber sheet and serves as a mold for shaping the fiber sheet; a supporting member which has greater rigidity than the fiber sheet and is provided to the other side of the fiber sheet and to an area in which the shape change section is formed; a covering member that covers the fiber sheet; and a pressing device that presses the fiber sheet onto the shaping mold by means of the covering member. The pressing device is a suction device that suctions the atmosphere from between the shaping mold and the covering member.

Abstract: An apparatus is provided for assisting in affixing a screen protector to a display of an electronic device. The apparatus includes a base including a platform configured to support the electronic device. The apparatus includes a lid configured to cover at least a portion of the base and the supported electronic device. The lid includes an aperture.

Abstract: Systems and methods for 3D bioprinting of hydrogel voxels enable microfluidics-assisted digital assembly of spherical particles (DASP). The systems include a 3D motion system, a microfluidic printhead coupled to the 3D motion system, an extrusion device fluidly coupled to the microfluidic printhead, and a sacrificial support matrix. The sacrificial support matrix is designed to support the hydrogel voxels during printing and cross-link the hydrogel voxels. The system includes bio-inks comprising hydrogel compositions having independently controllable viscoelasticity and mesh size. The bio-inks are extruded by the extrusion device and microfluidic printhead to produce the hydrogel voxels. Exploiting the microfluidic printhead enables printing individual spherical hydrogel voxels with diameters from 150 micrometers (?m) to 1200 ?m. Positioning and interconnection of the hydrogel voxels can be precisely controlled.

Abstract: A method of producing an article of manufacture includes printing a break-wire conductive-material pattern via an additive-manufacturing process and applying the break-wire conductive-material pattern to a surface of a component. A shape of the break-wire conductive-material pattern fits the surface of the component.

Abstract: The invention provides a method comprising producing a 3D item (1) by means of fused deposition modelling using a fused deposition modeling 3D printer (500), the method comprising a 3D printing stage comprising layer-wise depositing core-shell-shell material (1201) via a printer nozzle (502) on a receiver item (550), wherein the core-shell- shell material (1201) comprises a hollow tube (1210) comprising a hollow core (1220) and a first shell (1230) enclosing the hollow core (1220), and 3D printable material (201) at least partly enclosing the first shell (1230), to provide the 3D item (1) comprising a core-shell- shell layer (1322), wherein the core-shell-shell layer (1322) comprises the hollow tube (1210) comprising the hollow core (1220) and the first shell (1230) enclosing the hollow core (1220), and 3D printed material (202) at least partly enclosing the first shell (1230).

Abstract: There is provided a method of forming a structure that is in contact with an object, the method comprising: (i) supporting a flowable precursor with a flowable support at a position that allows said flowable precursor to be in contact with the object; and (ii) crosslinking at least part of the flowable precursor that is in contact with the object to form a structure that is in contact with the object, wherein a top surface of the part of the flowable precursor that is to be crosslinked, is in interface with a fluid medium. Also provided is a system for performing the method.

Abstract: A three-dimensional (3D) object and a 3D object production process comprising: providing a thermoset printing apparatus comprising: a mixing chamber to receive and mix at least a first reactive component and a second reactive component to provide a thermosetting material, an extrusion nozzle to deliver the thermosetting material to form a 3D object, at least one actuator coupled to the extrusion nozzle to move the extrusion nozzle when delivering the thermosetting material to form the 3D object, and a controller comprising one or more processors and coupled to the extruded thermoset printing apparatus, and depositing the thermosetting material to form the 3D object, wherein the depositing comprises depositing a lead-in block layer of thermosetting material, depositing a lead-in bridge layer of thermosetting material, depositing a main part layer of thermosetting material, depositing a lead-out bridge layer, and depositing a lead-out block layer.

Abstract: A hot end assembly for an extrusion system configured for fused filament fabrication using a plurality of individual filaments includes a cold block, a hot block and a nozzle. The cold block can have a cold block body that defines a first, second and third cold block filament passages. The hot block can have a hot block body that defines a first, second and third hot block filament passages that merge into a hot block common passage at a flow merge zone. The nozzle has a nozzle tip that defines a main nozzle flow passage that terminates at a nozzle outlet. The hot block can be configured to couple to the cold block whereby the hot block filament passages align with corresponding cold block filament passages for receiving the respective plurality of individual filaments.

Abstract: An apparatus, including: a print head (124) including: an attachment (126) that is configured to be attached to a movable carriage of a stereolithography 3D printer (SLA printer); and when the print head is installed on the movable carriage: a build platform (202) having a bottom surface (146) that faces downward, a front surface (162) that faces a front of the SLA printer, a rear surface (166) that faces a rear of the SLA printer, and side surfaces (174, 176) connecting the front surface to the rear surface; and at least one magnet (152) secured to the print head.

Abstract: A light source assembly and a printer reduce the loss of light rays, increase the utilization rate of the light rays and avoid the non-uniform light projection while uniformizing and collimating the light rays mainly by means of the cooperation of a lens and a reflector, thereby facilitating uniform curing of a printing resin. The main technical solution is as follows: a light source assembly for a printer, the light source assembly including a light-emitting element, a lens and a reflector. The light-emitting element and the reflector are arranged on two opposite sides of the lens. The reflector cooperates with the lens such that light rays emitted by the light-emitting element are projected after being refracted by the lens and reflected by the reflector. The light source assembly is primarily used for 3D printing.

Abstract: A 3D production apparatus and method that receives a 3D production file containing an extrusion control command for controlling an extruder mechanism. A corrected extrusion control command is generated based on the extrusion control command and a correction formula. The extruder mechanism is controlled in accordance with the corrected extrusion control command.

Abstract: A method of forming a three-dimensional (3D) pattern or article comprises: (1) selecting a first composition to be printed with a nozzle of an apparatus; (II) identifying desired characteristics of a pattern or layer (“pattern/layer”) to be formed by printing the first composition; (Ill) determining dimensional differences between the desired characteristics of the pattern/layer and predicted characteristics of the pattern/layer based on computational simulation modeling, or determining dimensional differences between the desired characteristics of the pattern/layer and actual characteristics of a trial layer, based on a flow rate of the first composition, a speed of a substrate and/or the nozzle, and the desired characteristics of the pattern/layer; and (IV) printing the first composition with the nozzle on the substrate to form the pattern/layer. The method comprises, during (IV) printing, (V) implementing a correction signal to adjust a flow rate of the first composition.