Abstract: A fabrication apparatus includes a forming device, an application device, an acquisition device, and circuitry. The forming device forms a layer containing powder. The application device applies a fabrication liquid to the layer formed by the forming device. The acquisition device acquires surface information of a surface of the layer. The circuitry controls at least one of the forming device or the application device to change at least one of an operation of the forming device or an operation of the application device based on the surface information acquired by the acquisition device.

Abstract: A three-dimensional fabrication system includes a supply device that supplies a fabrication material to form a fabrication material layer, an application device that applies a binder to the fabrication material layer, and circuitry. The circuitry determines a fabrication control condition based on data of a shape of a three-dimensional object to be fabricated, to form the fabrication material layer having a biased distribution of a density of the fabrication material.

Abstract: A shape measuring device includes an irradiation unit, an imaging unit, and a calculation unit. The irradiation unit irradiates a measured object with light. The imaging unit captures an image of a bright line formed on a surface of the measured object by the light. The calculation unit weights each bright line by an imaging accuracy of each bright line and calculates a shape of the measured object based on data of each weighted bright line.

Abstract: A measuring device includes processing circuitry. The processing circuitry is configured to project a pattern light beam onto a measurement object; acquire, as measurement data, a projection image of the measurement object onto which the pattern light beam is projected; predict, using fabrication data for fabricating the measurement object, a probable image formed by projection of the pattern light beam onto the measurement object to form prediction data; correct the measurement data with the prediction data to form corrected data; and calculate three-dimensional data to the measurement object, using the corrected data.

Abstract: A fabricating apparatus includes a fabricating device, a sensor, and a control unit. The fabricating device is configured to fabricate a fabrication layer according to fabrication data of a three-dimensional object. The sensor is configured to measure a shape of the fabrication layer. The control unit is configured to control the fabricating device according to the fabrication data and the shape of the fabrication layer measured with the sensor.

Abstract: A fabricating apparatus includes a fabricating device and processing circuitry. The fabricating device fabricates a fabrication layer according to fabrication data of a three-dimensional object. The processing circuitry measures a planar shape of the fabrication layer; and corrects fabrication data of another fabrication layer to be fabricated onto the fabrication layer according to the planar shape of the fabrication layer measured by the measurement unit and the fabrication data of the fabrication layer.

Abstract: A control system for controlling a fabricator that fabricates a three-dimensional object according to fabrication data includes an estimation unit, a correction unit, a measurement unit, an estimated error calculation unit, and a modification unit. The estimation unit estimates a change of at least one of a shape and a characteristic caused in the three-dimensional object. The correction unit corrects the fabrication data according to an estimation of the change estimated by the estimation unit. The measurement unit measures at least one of the shape and the characteristic of the three-dimensional object fabricated by the fabricator. The estimated error calculation unit calculates a difference between a measurement result of the at least one of the shape and the characteristic measured by the measurement unit and the estimation of the change. The modification unit modifies the estimation according to the difference calculated by the estimated error calculation unit.

Abstract: A fabricating apparatus for fabricating a three-dimensional object includes a fabricating device and processing circuitry. The fabricating device is configured to fabricate a fabrication layer based on fabrication data of the three-dimensional object. The processing circuitry is configured to measure a shape of the fabrication layer and correct an operation of fabricating another fabrication layer above the fabrication layer, based on a height of the fabrication layer measured.

Abstract: A fabricating system for three-dimensional fabrication includes processing circuitry. The processing circuitry is configured to: acquire a reference shape; measure a shape of a fabrication object during or after fabrication, to acquire a measured shape of the fabrication object; and set a plurality of representative points of the reference shape based on the reference shape. The processing circuitry is configured to, based on the measured shape of the fabrication object by the measuring, calculate difference data representing a difference between the reference shape and the measured shape of the fabrication object as a deformation represented by displacements of the plurality of representative points.

Abstract: A fabrication prediction system includes processing circuitry configured to acquire fabrication data for each layer and a setting of fabrication condition to fabricate a fabrication object, predict a deformation of the fabrication object for each layer in time series from starting of a fabrication of the fabrication object based on the fabrication data for each layer and the setting of fabrication condition, and calculate correction data for each layer based on the deformation of the fabrication object for each layer in time series.

Abstract: A measuring device includes processing circuitry. The processing circuitry is configured to project a pattern light beam onto a measurement object; acquire, as measurement data, a projection image of the measurement object onto which the pattern light beam is projected; predict, using fabrication data for fabricating the measurement object, a probable image formed by projection of the pattern light beam onto the measurement object to form prediction data; correct the measurement data with the prediction data to form corrected data; and calculate three-dimensional data to the measurement object, using the corrected data.

Abstract: A fabricating apparatus includes a fabricating device and processing circuitry. The fabricating device fabricates a fabrication layer according to fabrication data of a three-dimensional object. The processing circuitry measures a planar shape of the fabrication layer; and corrects fabrication data of another fabrication layer to be fabricated onto the fabrication layer according to the planar shape of the fabrication layer measured by the measurement unit and the fabrication data of the fabrication layer.

Abstract: A fabricating apparatus includes a fabricating device, a sensor, and a control unit. The fabricating device is configured to fabricate a fabrication layer according to fabrication data of a three-dimensional object. The sensor is configured to measure a shape of the fabrication layer. The control unit is configured to control the fabricating device according to the fabrication data and the shape of the fabrication layer measured with the sensor.

Abstract: Provided is a DC/DC converter for a multi-phase switching power supply device which include a plurality of DC/DC converters including a master DC/DC converter and a plurality of slave DC/DC converters that are connected in parallel to each other and operate in different phases. The DC/DC converter includes: first and second terminals to cascade the plurality of DC/DC converters in a line; a phase detector that detects the number of operating converters in the switching power supply device and the phases of the plurality of DC/DC converters, on the basis of a current input to the first terminal and a current output from the second terminal; a phase holder that holds the detected phases and outputs a phase holding signal; and a clock generator that selects a clock corresponding to the phase of a host converter from multi-phase clocks, on the basis of the phase holding signal, and outputs the selected clock. The DC/DC converter performs a switching operation on the basis of the selected clock.

Abstract: Provided is a DC/DC converter for a switching power supply device including a plurality of DC/DC converters which include a master DC/DC converter and a plurality of slave DC/DC converters and have output terminals connected in parallel to each other. The DC/DC converter includes: first and second terminals that are used to cascade the plurality of DC/DC converters in a line; a control circuit that determines that a host DC/DC converter is the master DC/DC converter when a predetermined voltage is detected at the second terminal and determines that the host DC/DC converter is the slave DC/DC converter when the predetermined voltage is not detected; and that controls a current output from the second terminal based on whether the host DC/DC converter is the master DC/DC converter or the slave DC/DC converter.

Abstract: Provided is a DC/DC converter for a switching power supply device including a plurality of DC/DC converters which include a master DC/DC converter and a plurality of slave DC/DC converters and have output terminals connected in parallel to each other. The DC/DC converter includes: first and second terminals that are used to cascade the plurality of DC/DC converters in a line; a control circuit that determines that a host DC/DC converter is the master DC/DC converter when a predetermined voltage is detected at the second terminal and determines that the host DC/DC converter is the slave DC/DC converter when the predetermined voltage is not detected; and that controls a current output from the second terminal based on whether the host DC/DC converter is the master DC/DC converter or the slave DC/DC converter.

Abstract: Provided is a DC/DC converter for a multi-phase switching power supply device which include a plurality of DC/DC converters including a master DC/DC converter and a plurality of slave DC/DC converters that are connected in parallel to each other and operate in different phases. The DC/DC converter includes: first and second terminals to cascade the plurality of DC/DC converters in a line: a phase detector that detects the number of operating converters in the switching power supply device and the phases of the plurality of DC/DC converters, on the basis of a current input to the first terminal and a current output from the second terminal; a phase holder that holds the detected phases and outputs a phase holding signal; and a clock generator that selects a clock corresponding to the phase of a host converter from multi-phase clocks, on the basis of the phase holding signal, and outputs the selected clock. The DC/DC converter performs a switching operation on the basis of the selected clock.