US Patent 11986883 Blue laser metal additive manufacturing system

A high-resolution additive manufacturing system and method using a Digital Mirror Device and having image segments that make up an image of an entire object and are projected to the target area to deliver a working laser beam in the image of the entirety of the object to be built. A method and system for additive manufacturing using a DMD in the laser beam path. The use of a pre-heat laser beam in combination with a build laser beam having a DMD along the build laser beam path.