There are various manufacturing processes for creating 3D structures, and laser light sources play a central role in the construction process. Common terms for this are laser 3D Printing (or 3D Laser Printing) and Stereolithography. Terms such as Selective Laser Melting or selective laser sintering describe the process used to form a solid material. The main attraction of 3D printing is the flexibility to produce objects with complex shapes without first creating special manufacturing tools. A 3D printer is a very versatile manufacturing machine that transforms software structures directly into real objects. Such printing processes have been developed for a variety of materials such as metals, ceramics and polymers.
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