A gas supply device for a laser machining head is provided for generating a homogeneous gas flow. The gas supply device includes a gas inlet, a shared volume for superimposing a laser beam and the gas flow, and a gas channel system which, starting from the gas inlet, branches at least twice and connects the gas inlet with several outlet openings at the shared volume. The gas channel system and the outlet openings are configured to provide a substantially homogeneous gas flow to the shared volume.

A device is provided for determining an orientation of an optical device of a coherence tomograph. The device has an optical reference geometry, a deflection optics configured to direct an optical measuring beam reflected by the optical device onto the optical reference geometry, and an evaluation unit configured to determine a distance between a first reference plane and at least one second reference plane of the optical reference geometry in order to determine the orientation of the optical device.

A device is provided for determining an orientation of an optical device of a coherence tomograph. The device has an optical reference geometry, a deflection optics configured to direct an optical measuring beam reflected by the optical device onto the optical reference geometry, and an evaluation unit configured to determine a distance between a first reference plane and at least one second reference plane of the optical reference geometry in order to determine the orientation of the optical device.

An additive manufacturing device includes a recoater configured to push powder onto a build platform. The recoater defines an advancing direction for pushing powder. A gas mover is mounted to the recoater and is configured to flow gas to remove powder from the build platform as the recoater moves along the advancing direction.

An additive manufacturing device includes a recoater configured to push powder onto a build platform. The recoater defines an advancing direction for pushing powder. A gas mover is mounted to the recoater and is configured to flow gas to remove powder from the build platform as the recoater moves along the advancing direction.

A machining program generation device that generates a machining program for controlling a 3D printing apparatus to form an object by stacking a plurality of layers, includes: a machining route generation unit that extracts a plurality of support points that are based on an end point, an intersection point, and a bending point of the machining path from machining path data indicating a shape and a position of the machining path for forming each of the plurality of layers, and generates a machining route by adding, to the machining path, an order of shaping indicating that shaping of the support points is to be executed first and then shaping of a gap line segment connecting the plurality of support points shaped is to be executed; and a machining program generation unit that generates a machining program for controlling the 3D printing apparatus according to the machining route.

In a first aspect, the invention relates to a laser treatment head comprising an input for a laser bundle, and further provided with a lens system for focusing the laser bundle and a scanning system for deflecting the laser bundle according to a one-dimensional or two-dimensional touch pattern. In particular, the laser treatment head further comprises an directional body configurable relative to the casing between at least a first position and a second position, for variably emitting the deflected laser bundle with said touch pattern, in at least a first or a second emission direction. In further aspects, the invention relates to a laser treatment device and a laser treatment process.

An aspiration system includes a pump and a control system in communication with the pump. The control system includes a microcontroller, an antenna configured to receive a signal, and a pump control board in communication with the microcontroller. The antenna is in communication with the microcontroller. Upon receiving the signal, the pump control board operates the pump to create negative pressure according to the signal.

An aspiration system includes a pump and a control system in communication with the pump. The control system includes a microcontroller, an antenna configured to receive a signal, and a pump control board in communication with the microcontroller. The antenna is in communication with the microcontroller. Upon receiving the signal, the pump control board operates the pump to create negative pressure according to the signal.

The present application relates to an apparatus (10) for laser processing, comprising at least two laser sources, which are different from one another and are configured for supplying respective laser beams having wavelengths different from one another, a laser head (20), which can be operated as end tool of a laser machine tool (90) that can be configured for carrying out at least one type of laser processing operation that can be selected from a set of types of laser processing operations, and a set of orientable optical components (16) so as to provide a set of selectable optical paths for directing a laser beam supplied by a laser source of said at least two laser sources, and a control unit (30) coupled to the at least two laser sources, to the set of orientable optical components (16), and to the laser head (20) and configured for controlling the at least two laser sources, the set of orientable optical components (16), and the laser head (20) according to the type of laser processing operation selected from the set of types of laser processing operations, i.e., so as to supply and direct a laser beam associated to the respective type of processing operation onto a region of a work surface (110). The laser head (20) comprises a set of nozzles (40, 42, 44, 46) configured for directing at least one processing material onto the working region (110), which comprises at least one nozzle (40) configured for directing jets of powder of at least one material, preferably powder of metal material (in brief metal powder), as well as comprising at least one of the following: a) a first nozzle (42) configured for directing a metal wire onto the working region, preferably metal wire for laser welding; and b) a second nozzle (46) configured for directing an assist gas onto the working region, preferably an assist gas for laser welding, and wherein the control unit (30) is coupled to the set of nozzles and is configured for controlling at least one nozzle of said set of nozzles (40, 42, 44, 46) according to the type of associated and selected laser processing operation so as to control said at least one nozzle so that it will direct respective processing materials onto the working region (110) simultaneously with direction of the laser beam (L) associated to the type of laser processing operation selected.