An actuator assembly for distributing build material and depositing binder material in an additive manufacturing apparatus may comprise an upper support and a lower support spaced vertically spaced from one another. A recoat head actuator may be coupled to a recoat head and one of the upper support and the lower support. The recoat head actuator may include a recoat motion axis. The recoat head actuator effects bi-directional movement of the recoat head on the recoat motion axis. A print head actuator may be coupled to a print head and the other of the upper support and the lower support. The print head actuator may include a print motion axis. The print head actuator effects bi-directional movement of the print head on the print motion axis. The recoat motion axis and the print motion axis are parallel to one another and spaced apart from one another in the vertical direction.

An additive manufacturing apparatus including a chamber, a manufacturing table, an imaging device, an image processing device, and a control device, in which a base plate disposed on the manufacturing table includes a first side and a second side, a first camera in the imaging device images a first region to acquire a first image and images a second region to acquire a second image, the image processing device analyzes the first and second images to acquire position information of each side, and the control device calculates a coordinate of an intersection point of the first side and the second side or an intersection point on extended lines of the first side and the second side as a point to be detected.

A layering device for preparation of layers being formed in additive manufacture, each layer formed by printing a mold wall to define a mold space and filling the mold space with a paste to form the layer. The layering device comprises a roller to press the mold wall from above to form a mold layer surface in a plane, a paste applicator and a blade to spread the paste to fill the mold space. The blade is aligned into the plane to smooth the paste flush with the mold layer surface.

A layering device for preparation of layers being formed in additive manufacture, each layer formed by printing a mold wall to define a mold space and filling the mold space with a paste to form the layer. The layering device comprises a roller to press the mold wall from above to form a mold layer surface in a plane, a paste applicator and a blade to spread the paste to fill the mold space. The blade is aligned into the plane to smooth the paste flush with the mold layer surface.

The apparatus for additively manufacturing includes a chamber, a work table, a base plate, an imaging apparatus, an image processing apparatus, and a control apparatus. The imaging apparatus images a first region including an entire build region on the work table to obtain a first image which the image processing apparatus analyzes to obtain position information of the base plate in the build region. The control apparatus calculates coordinates of a detection target point as first calculated coordinates from the position information. The imaging apparatus images a second region being a part of the first region and including the first calculated coordinates to obtain a second image which the image processing apparatus analyzes to obtain position information of the detection target point in the build region. The control apparatus calculates coordinates of the detection target point as second calculated coordinates from the position information of the detection target point.

The apparatus for additively manufacturing includes a chamber, a work table, a base plate, an imaging apparatus, an image processing apparatus, and a control apparatus. The imaging apparatus images a first region including an entire build region on the work table to obtain a first image which the image processing apparatus analyzes to obtain position information of the base plate in the build region. The control apparatus calculates coordinates of a detection target point as first calculated coordinates from the position information. The imaging apparatus images a second region being a part of the first region and including the first calculated coordinates to obtain a second image which the image processing apparatus analyzes to obtain position information of the detection target point in the build region. The control apparatus calculates coordinates of the detection target point as second calculated coordinates from the position information of the detection target point.

A method of configuring an additive-manufacturing machine comprises a chamber , a platform, movable inside the chamber and comprising a build-plane surface, and a laser, having a laser focal plane within the chamber. The method comprising steps of flowing a gas within the chamber in accordance with a first set of process parameters and identifying a value of a flow characteristic of the gas at a predetermined point in the laser focal plane while flowing the gas within the chamber in accordance with the first set of process parameters. The method also comprises additively manufacturing a test coupon using the laser while flowing the gas within the chamber in accordance with the first set of process parameters , wherein the test coupon has a test-coupon peripheral surface.

Arrangement (10) for the powder-bed-based additive manufacturing of a component (100), wherein the arrangement (10) comprises the following: a housing (12), which comprises a building volume (14), wherein the building volume (14) comprises a building area (16); at least three marker devices (20), which are fastened in or on the housing (12), wherein each marker device (20) is suitable for projecting a light reference marking (22) onto a component (100) lying on the building area (16) and/or onto the building area (16); a laser device (30) for the laser processing of a powder bed for generating a component (100) on the building area (16) by means of additive manufacturing, wherein the laser device (30) is set up for the laser processing of an associated working area (32a-32d), wherein the laser device (30) comprises a detection device (34), which is set up to sense the light reference markings (22); and a control unit (40), which is set up to calibrate the laser device (30) on the basis of the light reference markings (22) sensed by the detection device (34).

Arrangement (10) for the powder-bed-based additive manufacturing of a component (100), wherein the arrangement (10) comprises the following: a housing (12), which comprises a building volume (14), wherein the building volume (14) comprises a building area (16); at least three marker devices (20), which are fastened in or on the housing (12), wherein each marker device (20) is suitable for projecting a light reference marking (22) onto a component (100) lying on the building area (16) and/or onto the building area (16); a laser device (30) for the laser processing of a powder bed for generating a component (100) on the building area (16) by means of additive manufacturing, wherein the laser device (30) is set up for the laser processing of an associated working area (32a-32d), wherein the laser device (30) comprises a detection device (34), which is set up to sense the light reference markings (22); and a control unit (40), which is set up to calibrate the laser device (30) on the basis of the light reference markings (22) sensed by the detection device (34).

A calibration system for an acoustic monitoring system of an additive manufacturing machine includes a calibration platform removably mountable to a build platform of the additive manufacturing machine and one or more calibrated acoustic sources mounted to the calibration platform. The one or more calibrated acoustic sources define a measurement standard when operating.