"Imagine if the parts under the hood of your car were made in layers of color like jawbreaker candies. As the parts become worn, the changing colors would alert you to wear and tear.
Or imagine one finicky piece breaks and, rather than scouring parts stores or junkyards, you look up the replacement online and press “print.”
The bridge between now and then could develop sooner than you think.
HP Inc., the Palo Alto, Calif.-based printing company, released last fall its Jet Fusion 3D 4200, an obsidian-colored printer nearly the size of a Smart Car. It reportedly prints 10 times faster than its peers in a growing industry that, according market research firm Wohlers Associates, was last year doing $7.3 billion in business. HP’s own research pegs the industry closer to $6 billion..."