Abstract: A controller may be to receive temperature data representing a temperature distribution of at least part of a current layer of build material that is measured by a temperature sensor. The controller may be to determine one or more weighting factors representing a degree of influence of each of one or more previous layers of the build material beneath the current layer on a property of the current layer. The controller may be to identify one or more regions in the current layer based on the one or more weighting factors and based on how the property is exhibited by each of the one or more regions. The controller may be to cause the current layer to achieve a target temperature if the temperature data in a selected region of the identified one or more regions does not match the target temperature.

Abstract: An inkjet width adjustment method adapting to three-dimensional printing equipment is provided. The method in one of exemplary embodiments is provided hereafter. A three-dimensional digital model is obtained, and a slicing procedure is performed on the three-dimensional digital model to produce a layer object, wherein the layer object has a cross-sectional contour. A surface tilt degree corresponding to the cross-sectional contour is obtained from the three-dimensional digital model, and an ideal inkjet width of the layer object is calculated according to the surface tilt degree corresponding to the cross-sectional contour. After a print module is controlled to print the layer object, an inkjet module is controlled to spray ink along the cross-sectional contour of the layer object according to the ideal inkjet width. In addition, the three-dimensional printing equipment is also provided.

Abstract: In a method for operating an apparatus for transforming plastic preforms into plastic containers, the apparatus acts upon a flowable medium to plastic preforms in order to expand these plastic preforms to form the plastic containers, and the apparatus carries out this transforming operation while taking account of a plurality of process parameters. The plurality of process parameters is determined on the basis of a machine model, wherein a predefined number of input parameters are transferred to this machine model and at least one processor unit determines the process parameters and/or values characteristic of these process parameters on the basis of these input parameters.

Abstract: A nozzle system and method of manufacturing a nozzle system for use in an additive manufacturing system for fabricating an object is disclosed. The nozzle system includes a monolithic nozzle head designed such that the thermal locking member, neck member, and nozzle member of the nozzle head are manufactured into one component. The nozzle head is made of a material that has a high specific heat capacity but low thermal heat conductivity. The result is a nozzle system design that virtually eliminates heat migration from the nozzle head to the heat sink, and thereby improves the overall quality of polymer filament deposition during printing.

Abstract: Apparatus for the customization of footwear, in particular sports footwear, having an element made of thermoplastic material is provided. A method for the customization of footwear using the apparatus is also provided. The apparatus has a heating assembly, for heating the thermoplastic element above a predetermined threshold temperature, and a shaping assembly, for shaping the thermoplastic element while its temperature is above the threshold value, which assemblies are both carried by a common frame. Due to the fact that the heating assembly and the shaping assembly are carried by a single, common frame, it is possible to ensure proper heating and subsequent shaping of the element made of thermoplastic material.

Abstract: According to one embodiment, an imprint apparatus includes: an ejection unit that ejects droplets of a resin-based mask material on a substrate on the basis of a droplet dropping condition; and a control unit that selects a first droplet dropping condition according to a pattern to be transferred to the resin-based mask material and a second droplet dropping condition according to an underlying step difference amount that is concave-convex of a first shot area and causes the ejection unit to eject the droplets with respect to the first shot area, wherein the shot area where a pattern is formed on the substrate by one time of imprinting is set.

Abstract: A three-dimensional shaping method utilizing a powder layer forming step, and a sintering step with a laser beam or electron beam, the method including the steps of a) measuring the reflection intensity of the beam irradiated in each sintering step, or the reflection intensity of other light, b) commanding to continue sintering within the next time unit, or when the next powder layer forming step is given, when it has been detected that the reflection intensity of the step a) is within a standard range for a given time unit, and, c) judging that a sintering defect has been produced, and commanding to cancel sintering in the next time unit, or when the next powder layer forming step is given, when it is detected that a condition has occurred in which the reflection intensity of step a) deviates from the standard range for a given time unit.

Abstract: Techniques for generating a support structure for an object are provided. In some embodiments, one or more regions of the object are identified as one or more regions to which mechanical support is to be provided and one or more support points within at least a first region of the one or more regions are identified. A support structure may be generated for the object that comprises one or more support tips coupled to the object at the one or more support points, where the support tips being generated based at least in part on a direction normal to the surface of the object at the respective support point. Techniques for providing visual feedback to a user relating to an amount of support that a support structure is expected to provide during fabrication are also provided.

Abstract: Methods, systems, and apparatus for of adjusting a shape of an imprint lithography template, including identifying a shape of an active area positioned on a first side of the template, the active area including patterning features; determining a correspondence between a shape of an adaptive chuck and the shape of the active area positioned on the first side of the template, the adaptive chuck coupled to a second side of the template, the second side opposite the first side of the template; and adjusting, by an actuation system coupled to the adaptive chuck, the shape of the adaptive chuck based on the correspondence to obtain a target shape of the active area positioned on the first side of the template.

Abstract: The present invention provides an imprint apparatus which performs an imprint process of forming, by using a mold, a pattern of an imprint material on a substrate, including an obtaining unit configured to obtain electric charge information on an amount of first electric charges charged on a first surface of the mold on a side of the substrate by releasing the mold from the cured imprint material on the substrate, a supply unit configured to supply second electric charges having a polarity opposite to that of the first electric charges to an electrode arranged on a second surface of the mold on a side opposite to the first surface, and a control unit configured to control, based on the electric charge information, an amount of the second electric charges supplied from the supply unit to the electrode.

Abstract: This invention can maintain the temperature of the shaping plane in a three-dimensional layer-by-layer shaping apparatus. A three-dimensional layer-by-layer shaping apparatus includes a material spreader that spreads the material or materials of a three-dimensional layer-by-layer shaped object onto the shaping plane on which the three-dimensional layer-by-layer shaped object is to be shaped; an electron gun that generates an electron beam; at least one deflector that deflects the electron beam so that it scans the shaping plane one- or two-dimensionally; at least one lens that is positioned between the electron gun and the deflector, and focuses the electron beam; a focus controller that controls the focus of the electron beam based on which region is to be scanned by the electron beam; and a controller that controls the deflecting direction of the deflector and the scanning rate.

Abstract: An additive manufacturing system includes an ultrasonic inspection system integrated in such a way as to minimize time needed for an inspection process. The inspection system may have an ultrasonic phased array integrated into a build table for detecting defects in each successive slice of a workpiece and such that each slice may be re-melted if and when defects are detected.

Abstract: A method, computing system, and one or more computer-readable storage media for fabricating full color three-dimensional objects are provided herein. The method includes transforming a three-dimensional model into instructions for a fabrication device by slicing the three-dimensional model into layers with color information preserved, generating two-dimensional polygons for each layer based on colors on faces, colors on textures, and/or gradient colors, and determining a tool path for fabricating an object from colored materials based on the two-dimensional polygons for each layer.

Abstract: A method of manufacturing bulked continuous carpet filament from recycled polymer. In various embodiments, the method includes: (1) reducing recycled polymer material into polymer flakes; (2) cleansing the polymer flakes; (3) melting the flakes into a polymer melt; (4) removing water and contaminants from the polymer melt by dividing the polymer melt into a plurality of polymer streams and exposing those streams to pressures below 5 millibars; (5) recombining the streams; and (6) using the resulting purified polymer to produce bulked continuous carpet filament.

Abstract: A method for manufacturing bulked continuous carpet filament, the method comprising: (1) reducing a chamber pressure within a chamber to below about 5 millibars; (2) after reducing the chamber pressure to below about 5 millibars, providing a polymer melt to the chamber; (3) separating the polymer melt into at least eight streams; (4) while the at least eight streams of the polymer melt are within the chamber, exposing the at least eight streams of the polymer melt to the chamber pressure of below about 5 millibars; (5) after exposing the at least eight streams of the polymer melt to the chamber pressure of below about 5 millibars, recombining the at least eight streams into a single polymer stream; and (6) forming polymer from the single polymer stream into bulked continuous carpet filament.

Abstract: A method of manufacturing bulked continuous carpet filament that includes providing a polymer melt and separating the polymer melt from the extruder into at least eight streams. The multiple streams are exposed to a chamber pressure within a chamber that is below approximately 5 millibars. The streams are recombined into a single polymer stream and formed into bulked continuous carpet filament.

Abstract: A biaxial stretch blow molding device comprises: a first guide shaft 57 which is erected on an upper base 51 and to which a blow core fixing member 54 is slidably coupled; a second guide shaft 67 erected on the stretch rod fixing member 56; a support member 59 fixed to the first guide shaft 57 and provided with a guide hole 68 through which the second guide shaft 67 is slidably inserted; a first drive device 63 that moves the blow core fixing member 54 forward and backward independently of the stretch rod fixing member 56; and a second drive device 70 that moves the stretch rod fixing member 56 forward and backward independently of the blow core fixing member 54.

Abstract: Embodiments of the invention allow performing an additive manufacturing process using a base object. Some embodiments enable placement of a three-dimensional base object inside a three-dimensional printer and print on the base object to produce a three-dimensional product. One exemplary embodiment is a method including: obtaining a representation of a three-dimensional physical object as a base object; obtaining a representation of a three-dimensional physical object as a product producible by adding layers of material on the base object. A representation of a support structure configured to retain the base object position within an additive manufacturing apparatus is determined, and the support structure is produced using an additive manufacturing process. Alternatively, a representation of an on-object structure determined and the on-object structure is produced using an additive manufacturing process by adding one or more layers of material on the base object.

Abstract: The disclosed embodiments include a system for generating a unitary ink tank with a three-dimensional (3D) printing process. The system includes a processor configured to execute computer instructions that control 3D printing of an ink tank for a printer system. The system further includes a 3D printer coupled to the processor and configured to, based on the computer instructions, print the ink tank in accordance with a selective laser sintering process that sinters a powdered nylon material to form the ink tank as a unitary that includes a network of passageways configured to route ink of the printer system.

Abstract: The invention relates to a method for the indirect determination of a specific formulation with an extrusion process in an extrusion device (10) comprising the following steps: determination of measurement data of at least one processing parameter of the extrusion process of the extrusion device (10), comparing the determined measurement data with saved data saved in relation to the specific formulation of the same processing parameter, determination of the deviation of the measurement data from the saved data of the same processing parameters and comparing of the deviation with a predefined deviation threshold.

Abstract: A method of simulating a shaping process involves calculating states of objects involved in the shaping process in discrete and successive time steps with presetting of conditions, and the conditions represent input parameters of the shaping process. After a time step which is before the end of the simulated shaping process, (a) a check on the calculated states of the objects involved in the shaping process is carried out based on a quality criterion. If the check in step (a) shows that the quality criterion is not met, then (b) at least one of the following is carried out: resumption of the simulation with repeated calculation of the time step and/or a preceding time step, and continuation of the simulation with calculation of a time step following the time step. When method step (b) is carried out, the conditions are at least partially altered.

Abstract: An ultraviolet laser 3D printing device includes a thermostat, a laser head, a non-contact type temperature monitoring device, a scanning galvanometer, a processing platform, a powder laying device, a material to be processed, a computer control system. The device is configured to perform the following functions: presetting a processing temperature by the control system; during the processing procedure, the temperature rise condition of the processed object is monitored by the non-contact type temperature monitoring device and fed back in real time to the control system; and by recording the rise value of the temperature within a certain period, the system can obtain the absorption capability of the laser and the temperature rise degree of the processed material, so that the laser output power can be calculated according to the preset processing temperature value, and the laser power can be adjusted in real time to precisely control the processing temperature.

Abstract: A positioning apparatus for positioning a tactile or optical roughness sensor, a probe or some other measuring instrument with respect to a workpiece can be secured to a movement device of a coordinate measuring machine. The positioning apparatus has a drive that produces a relative movement between two parts of the positioning apparatus, and an inhibiting device, which inhibits the relative movement between the two parts. For this purpose, the inhibiting device has a first friction element and a second friction element each having unlubricated friction surfaces. The friction surfaces are pressed against one another with a normal force that is not variable during the operation of the positioning apparatus. A coefficient of sliding friction that is less than 0.15 acts between the friction surfaces in the case of dryness and without lubrication. Typically, the inhibiting device is arranged in a flexspline of a strain wave gearing.

Abstract: An apparatus for use in 3D fabrication includes a heat sink, a melt tube extending through the heat sink, the melt tube having a first end and an opposite second end and adapted for melting filament or other material as the material is conveyed from the first end to the second end, a pen tip having an opening therein for ejecting melted material, the pen tip at the second end of the melt tube, and a pen tip holder for securely holding the pen tip during printing, the pen tip holder having a heater element associated therewith.

Abstract: A shaped article formed by multilayer lamination technique is provided and comprising: a decorative layer, wherein the decorative layer has an ink density thereof filled by a supplementary ink in a part of the decorative layer in which a decorative ink alone is insufficient to meet a predetermined ink density.

Abstract: A method of manufacturing bulked continuous carpet filament that includes providing a polymer melt and separating the polymer melt from the extruder into at least eight streams. The multiple streams are exposed to a chamber pressure within a chamber that is below approximately 5 millibars. The streams are recombined into a single polymer stream and formed into bulked continuous carpet filament.

Abstract: A method of manufacturing bulked continuous carpet filament from recycled polymer. In various embodiments, the method includes: (1) reducing recycled polymer material into polymer flakes; (2) cleansing the polymer flakes; (3) melting the flakes into a polymer melt; (4) removing water and contaminants from the polymer melt by dividing the polymer melt into a plurality of polymer streams and exposing those streams to pressures below 5 millibars; (5) recombining the streams; and (6) using the resulting purified polymer to produce bulked continuous carpet filament.

Abstract: A method for manufacturing bulked continuous carpet filament, the method comprising: (1) reducing a chamber pressure within a chamber to below about 5 millibars; (2) after reducing the chamber pressure to below about 5 millibars, providing a polymer melt to the chamber; (3) separating the polymer melt into at least eight streams; (4) while the at least eight streams of the polymer melt are within the chamber, exposing the at least eight streams of the polymer melt to the chamber pressure of below about 5 millibars; (5) after exposing the at least eight streams of the polymer melt to the chamber pressure of below about 5 millibars, recombining the at least eight streams into a single polymer stream; and (6) forming polymer from the single polymer stream into bulked continuous carpet filament.

Abstract: Provided is a double container (1) configured so that water entrance through an atmospheric air introduction hole (15) can be reliably prevented and that an adverse effect due to water entrance into an intermediate space (21) between an outer shell (11) and an inner bag (12) can be avoided. The double container (1) has the outer shell (11) and the inner bag (12). The inner bag (12) contracts in association with a decrease in contents housed in the inner bag (12). The outer shell (11) is provided with the air introduction hole (15). Further, a hydrophobic filter configured to allow air penetration and block water is provided to close the air introduction hole (15).

Abstract: A socket for a prosthetic limb is created by making a cast of a residual limb. Marks can be applied to the interior surface of the cast to indicate the locations of anatomical features of the residual limb. The marked interior surface can be scanned and the scan data can be sent to a master fabrication center. The scan data can be modified and a master can be produced from the modified scan data. The socket can then be formed from the plastic material on the master.

Abstract: An injection molding method includes: a plasticizing process of feeding a resin pellet and additive components to a heating cylinder including a screw that can rotate around a rotation axis and can advance and retreat along the rotation axis, and generating molten resin by rotating the screw in a normal direction; and an injection process of injecting to a cavity the molten resin containing the additive components. In the plasticizing process, retreat operation of forcibly retreating the screw is performed at a predetermined velocity by a predetermined stroke or a predetermined time.

Abstract: A method of forming a plurality of lipid bilayers over an array of cells in a nanopore based sequencing chip is disclosed. Each of the cells comprises a well. A salt buffer solution is flowed over the array of cells in the nanopore based sequencing chip to substantially fill the wells in the cells with the salt buffer solution. A lipid and solvent mixture is flowed over the array of cells to deposit the lipid and solvent mixture over at least some of the wells in the cells. A first portion of the cells, each having a lipid bilayer over its well, is detected. A second portion of the cells, each having a lipid membrane but not a lipid bilayer over its well, is detected. An electrical lipid-thinning stimulus is selectively applied to the second portion of the cells but not to the first portion of the cells.

Abstract: Touch screen operator control panel for industrial machines, in particular for the control of maneuvering of the axes of injection presses for plastics, including an operator interface on which icons are displayed indicating the various axes of a press, the icons being individually selectable in order to be dragged into an area of maneuvering where they are translatable in the two ways of a prefixed direction to impart the corresponding movements to the selected axis, wherein the possibility is provided of simultaneously displaying in the maneuvering area icons of several press axes correlated one to the other and of actuating sequentially/selectively the movements of these press axes by dragging a central zone of the maneuvering area in the corresponding different directions wherein the respective icons of the press axes are displayed.

Abstract: Embodiments of the present disclosure are drawn to additive manufacturing apparatus and methods. An exemplary additive manufacturing method may include forming a part using additive manufacturing. The method may also include bringing the part to a first temperature, measuring the part along at least three axes at the first temperature, bringing the part to a second temperature, different than the first temperature, and measuring the part along the at least three axes at the second temperature. The method may further include comparing the size of the part at the first and second temperatures to calculate a coefficient of thermal expansion, generating a tool path that compensates for the coefficient of thermal expansion, bringing the part to the first temperature, and trimming the part while the part is at the first temperature using the tool path.

Abstract: A method and apparatus for equalizing gate pressure of a hot runner nozzle are disclosed. The nozzle includes a nozzle housing defining a primary melt channel, a first nozzle tip having a first secondary melt channel in fluid communication with the primary melt channel, a second nozzle tip having a second secondary melt channel in fluid communication with the primary melt channel, and a valve disposed in the primary melt channel for selectively opening and closing a downstream end of the primary melt channel to control a flow of melt to the first and second secondary melt channels. In some embodiments, the valve is configured to selectively open when a pressure of the melt reaches a threshold peak pressure. In some embodiments, the valve includes a valve stem that cooperates with the primary melt channel to block a flow of melt therefrom until the threshold peak pressure is established.

Abstract: Examples are described that generate control data (280) for production of a three-dimensional object. Build material profile data (260) is accessed for an indicated build material. The build material profile data for a given build material defines one or more parameter values that are dependent on the properties of the given build material and that are configured to generate a three-dimensional object with predefined build properties. Certain examples are arranged to generate control data for the production of a three-dimensional object by applying build material profile data to received object data (230).

Abstract: A method for manufacturing a three-dimensional printed (3D-printed) object on a base plate. The method includes: depositing at least one block of a first material in a first layer directly onto the base plate; and depositing at least one block of a second material either in the first layer adjacent to the one or more blocks of the first material, or in a second layer directly onto the at least one block of the first material in the first layer. The first material is one of a non-auxetic structure or an auxetic structure, and the second material is the other one of the non-auxetic structure or the auxetic structure.

Abstract: A method of manufacturing bulked continuous carpet filament that includes providing a polymer melt and separating the polymer melt from the extruder into at least eight streams. The multiple streams are exposed to a chamber pressure within a chamber that is below approximately 5 millibars. The streams are recombined into a single polymer stream and formed into bulked continuous carpet filament.

Abstract: The present invention relates to the use of a polymer comprising polymerized units (A) and (B): (A) at least one first monomer of the formula (I) where n is 3 to 12; m is 0 to 3; R1 is C1-C10-alkyl, C2-C10-alkenyl, aryl or aralkyl; R2, R3 and R4 are each, independently of one another, hydrogen, C1-C10-alkyl, C2-C10-alkenyl, aryl or aralkyl; and (B) at least one second monomer of the formula (II) where R5, R6 and R7 are each, independently of one another, hydrogen, C1-C10-alkyl, C2-C10-alkenyl, aryl or aralkyl; R8 is C1-C20-alkyl, C2-C10alkenyl, aryl or aralkyl; as a support material in a fused filament fabrication process.

Abstract: A system is described for layered construction of a body made of a light-curable substance. The system comprises a tray made of resilient material for receiving the substance in a liquid or pasty state, a light source for regionally selective curing of the layer of the substance lying on the tray base, a construction platform arranged above the tray base and capable of being lowered and raised relative thereto for adhering to and lifting the cured substance layer, a tensioning means configured to exert tension or compression onto the tray, and a control means controlling the tensioning means and the construction platform accordingly. A tray is also described for use in a system of this type.

Abstract: Since a data acquisition condition setting unit can select a data acquisition start/end trigger, a sampling period of data, and a type of acquired data, a waveform display device, which has a function of allowing only necessary data to be acquired by allowing a plurality of data acquisition conditions to be set with respect to one data acquisition, can set these conditions from a screen of a data acquisition condition setting. When data needs to be acquired according to a plurality of different conditions, a plurality of types of necessary data acquisition conditions is set to set different data acquisition condition names. When a plurality of data acquisition conditions is set by acquiring data once, a multi-data acquisition condition setting unit can set necessary data acquisition conditions using a screen of a multi-data acquisition condition setting.

Abstract: The present invention provides an imprint apparatus which forms a pattern in an imprint material supplied onto a substrate using a mold, the apparatus comprising a supply unit including a plurality of orifices each of which discharges the imprint material toward the substrate and configured to supply the imprint material onto the substrate by discharge of the imprint material from each orifice, and a control unit configured to control the discharge of the imprint material from each orifice in accordance with distribution information indicating a distribution, on the substrate, of the imprint material that should be supplied onto the substrate, wherein the control unit updates, based on information on a discharge amount of the imprint material discharged from each orifice, the distribution information such that a thickness of the imprint material formed using the mold falls within an allowable range.

Abstract: A nozzle lifting assembly for an additive manufacturing system includes a base member and a lift member relatively movable with respect thereto, a first nozzle body arranged for being lifted by the lift member and a second nozzle body disposed on the base member. A wedge member is movably arranged relative to the base member and in wedging engagement with the lift member between a first and second wedge position, wherein the first and second wedge position correspond to a lowered position and a lifted position of the first nozzle body with respect to the second nozzle body, respectively.

Abstract: The present invention is directed to a capsule (11) for containing a food ingredient, adapted to be functionally inserted in the cavity of a food preparation machine (1), characterized in that said capsule (11) comprises at least one resilient portion (17, 19, 20, 21, 22, 23, 25, 26, 27, 29, 31, 33, 34, 35, 38) that is deformable when said capsule is inserted into the machine cavity, and/or when said cavity is closed, and in that at least one machine operational data is function of the elastic deformation properties of the resilient portion.

Abstract: An injection molding system comprised of: an injection machine having a barrel and a screw for injecting an injection fluid, a distribution manifold, a valve associated with a corresponding one of one or more downstream gates, a sensor adapted to sense and generate a signal indicative of pressure of the injection fluid in the barrel or an inlet that delivers injection fluid from the barrel to the manifold, and a controller receiving the signal generated from the sensor and including instructions that use the signal as a control value to adjust, during the course of an injection cycle, positioning or velocity of one or more of the valve pins.

Abstract: An additive manufacturing method for delivering a flowable material from a nozzle of a programmable computer numeric control (CNC) machine, the nozzle being configured to translate along a first axis, a second axis perpendicular to the first axis, and a third axis orthogonal to the first and second axes. In one embodiment, the method includes actuating an extruder to form a flowable material, delivering the flowable material to a pump, sensing a pressure of the flowable material, and adjusting at least one of a speed of the extruder and a speed of the pump based on at least one of the sensed pressure and a rate of translation of the nozzle along one or more of the first, second, and third axes.

Abstract: Embodiments of the disclosure provide a method and apparatus for depositing a layer on a substrate. In one embodiment, the method includes exposing a surface of the substrate disposed within a processing chamber to a fluid precursor, directing an electromagnetic radiation generated from a radiation source to a light scanning unit such that the electromagnetic radiation is deflected and scanned across the surface of the substrate upon which a material layer is to be formed, and initiating a deposition process with the electromagnetic radiation having a wavelength selected for photolytic dissociation of the fluid precursor to deposit the material layer onto the surface of the substrate. The radiation source may comprise a laser source, a bright light emitting diode (LED) source, or a thermal source. In one example, the radiation source is a fiber laser producing output in the ultraviolet (UV) wavelength range.

Abstract: A method of printing a three-dimensional (3D) color object, layer-by-layer, comprises: obtaining a 3D CAD specification defining a 3D geometry and a surface color distribution for the color object to be printed, defining regions on a surface of the color object; defining colors for each region based on the CAD specification; determining, using the 3D geometry of the specification, conditions applying at respective regions that are liable to cause color variation, such that using the colors as defined at the respective regions may give rise to a coloration error; selecting color corrections defined for respective determined conditions; correcting the defined colors; and printing the 3D color object with the color corrections.

Abstract: Color measurement instruments and processes provide automated and accurate color measurements. Sensor to sample distance is automatically adjusted by the instrument over the course of measurement collection. Adaptive parameters may include turntable speed, illumination spectrum, laser gain setting, number of measurement samples, duration of sampling, sample color measurement threshold, and distance variation measurement threshold.

Abstract: A method for transforming plastic preforms into plastic bottles, in which preforms are introduced into blowing stations, each blowing station having at least one blow mold and a stretching rod for stretching the preform along a longitudinal axis of the preform within the blow mold, and the preforms are expanded to form the plastic bottles by being acted upon by a gaseous medium in the blow mold, wherein a wall thickness of the plastic container is measured by at least one measuring device which outputs the measured values to a closed-loop and/or open-loop control device, wherein at least a stretching speed of the stretching rod is varied by the closed-loop and/or open-loop control device at least at times and/or at least in some locations during the blowing operation, individually for each blowing station, in order to adjust a wall thickness of the plastic bottles.