Additive manufacturing systems, methods, and computer readable media may be configured to perform a calibration. Calibrating an additive manufacturing system may include comparing a digital representation of one or more calibration marks to a calibration-CAD model that includes one or more model calibration marks, and applying a calibration adjustment to one or more CAD models based at least in part on the comparison. The digital representation of the one or more calibration marks may have been obtained using a vision system, and the one or more calibration marks may have been printed on a calibration surface according to the calibration-CAD model using an additive manufacturing machine. The calibration adjustment may be configured to align the one or more CAD models with one or more coordinates of the additive manufacturing system.

Provided is a robot system in which when a robot is transported to and installed at an actual installation position, correction is made to correct errors in robot installation. This robot system is provided with: a reference point disposed at a location where a robot is to be installed; a position measurement means that, at a plurality of positions to which the robot is moved, makes a measurement of a prescribed position of the robot according to an installation coordinate system C1 based on the reference point; a position calculation means that determines a prescribed position of the robot according to a base coordinate system C2 of the robot; and a matrix calculation means that calculates a conversion matrix used to convert the base coordinate system C2 to the installation coordinate system C1 so that any difference between the prescribed position measured by the position measurement means and the prescribed position determined by the position calculation means becomes minimal.

A manufacturing system for fabricating a three-dimensional article includes a housing, a sensor within the housing, a coater, a removable powder module (RPM) with a platen, a laser system, and a controller. A method of operating the manufacturing system includes installing the RPM into the housing, forming pillars onto the platen, positioning the top surfaces of the pillars a distance D below a build plane, installing a calibration plate onto the top surfaces of the pillars, and then calibrating the laser system using the sensor. The sensor can include one or more of an optical sensor and an acoustic sensor.

Techniques are described for calibrating an optical system in an additive fabrication device using an image of the build surface within the device. These techniques allow calibration to be performed by imaging one or more calibration features generated on (or at) the build surface, which may include illuminated regions of the build surface, regions of the build surface on which solid material has been formed, and/or regions of the build surface to which energy has otherwise been directed thereby making those regions distinguishable from their surroundings. The calibration features may be produced (at least in part) by the optical system to be calibrated. The location of the calibration features within the image may be compared with the intended location of these calibration features, and corrections to the optical system determined based on any differences between the actual and intended locations.

A control device of a transfer device has: a mark relative position calculation unit which calculates a relative position of the three compensation marks relative to the cart, based on a captured image of the camera; a posture calculation unit which calculates a posture of the robot arm which arranges the article at the delivery position, based on a relative position of the three compensation marks calculated by the mark relative position calculation unit, and a teaching positional relationship which is taught in advance as a positional relationship between the three compensation marks and the delivery position; a reference positional relationship determination unit which determines whether a mutual positional relationship between the three compensation marks matches with a reference positional relationship set in advance, based on the relative positions of the three compensation marks calculated by the mark relative position calculation unit; and a displacement notification unit which notifies to outside of a possibility of displacement of the three compensation marks, in a case of the reference positional relationship determination unit determining that the mutual positional relationship of the three compensation marks does not match with the reference positional relationship.

A system includes a machine tool 10, a robot 25 having a camera 31, and a transportation device 35 having the robot 25 mounted thereon, and an identification figure is arranged in a machining area of the machine tool 10.

A device, method, and computer program product, the device comprising: a calibration block having a planar area, the planar area comprising at least three marking elements, located at three corners of at least one triangle, wherein a processor used for calibrating a robot-based production environment comprising at least a first component, is adapted to:

receive parameters of the calibration block; receive a position of a calibration block reference point of the calibration block relative to a component reference point of a first component of a robot-based production environment; receive a set of locations of the at least three marking elements of the calibration block taken when the calibration block is positioned on the first component; and based on the parameters, the position and the set of locations, determine a position and orientation of the first component in a coordinate system of the robot-based production environment.

A processing device includes: a first processing position (A1) and a second processing position (A2) at which rough processing is performed on a workpiece (W); a third processing position (B1) at which final finishing processing is performed on the workpiece (W) that was processed at the second processing position (A2); flexible vises (7) provided to the first processing position (A1) and the second processing position (A2), the flexible vises (7) securing the workpiece (W) by clamping the same; and a quick clamping device (20) provided to the third processing position (B1), the quick clamping device (20) securing the workpiece (W) by means of a pin. The processing device also includes a control unit that controls a rough processing tool for performing rough processing and a final finishing processing tool for performing final finishing processing.

A method determines position data of a platform at a plate of an additive manufacturing device, having scanner optics for scanning a laser. The plate has holes that receive a holder, marks on the plate, and receptors for receiving laser target parts. A first position dataset is obtained with a position of a holder inserted in a hole with respect to the marks. After mounting the plate and inserting the platform into the holder, a laser mark is marked on the laser target parts using the laser at laser mark positions in the scanner optics' coordinate system. A pre-manufacturing image of the support plate is acquired with the laser marks on the laser target parts. A second position dataset having positions of the marks with respect to the laser marks is obtained from the pre-manufacturing image. The position data is determined from the position datasets and the laser mark positions.

A device for calibrating an irradiation system of an apparatus for producing a three-dimensional work piece includes a control unit to control the irradiation system so as to irradiate a radiation beam onto an irradiation plane according to a calibration pattern. The device also includes a sensor arrangement arranged in the irradiation plane to output signals to the control unit in response to being irradiated with the radiation beam according to the calibration pattern. The control unit generates a digital image of an actual irradiation pattern produced by the radiation beam incident on the sensor arrangement based on the signals output by the sensor arrangement, compares the digital image of the actual irradiation pattern with a digital image of a reference pattern so as to determine a deviation between the actual irradiation pattern and the reference pattern, and calibrates the irradiation system based on the determined deviation between the actual irradiation pattern and the reference pattern.