Method and system for adjusting an additive manufacturing device

A method for adjusting and measuring a material spray/fuse device via a direct additive laser construction method utilizing a system comprising:

• a powder spray nozzle;
• a laser beam passing through a center of the powder spray nozzle;
• a light source to provide a light beam substantially perpendicular to a lighting plane, and comprising a support to position the light source with respect to a material surface;
• a first profile camera installed such that its optical axis is substantially parallel to the lighting plane;
• a projector to project a view seen by the center of the powder spray nozzle on an optical path;
• a centering camera with its optical axis placed on the optical path;
• a target markable by a laser shot and
• an acquisition and processing unit configured to collect images from the first profile camera and the centering camera;
• the method comprising steps of:
• positioning the powder spray nozzle above the lighting plane according to an orientation that is substantially normal to the lighting plane;
• placing the target between an outlet of the powder spray nozzle and the lighting plane such that the target intercepts the laser shot;
• delivering the laser shot to the target by a laser, the laser beam passing through the center of the powder spray nozzle;
• lighting an end of the powder spray nozzle by the light source;
• and
• obtaining an image, through the end of the powder spray nozzle by the centering camera, of a mark left by the laser shot on the target while the end of the powder spray nozzle is lit.