To many, 3D printing is little more than a toy. A toy that mostly prints toys. To others, it's a prototyping tool good for a hands-on feel of a manifested idea but not much more. Yet for a select few, 3D printing is the heart of innovation, and each new iteration is pumping the future's lifeblood. Known in the manufacturing sector as "additive manufacturing," or AM, 3D printing is used heavily in prototyping already. There is also some use of it in producing machine parts.
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