3-D printers have been in industrial use for more than 20 years, but their cost — sometimes reaching hundreds of thousands of dollars — generally put them out of reach for everyday customers.
That’s changing fast. Entrepreneurs devoted to the “democratization” of these devices are building cheaper versions with rapidly falling price tags. Hobbyists are testing out at-home 3-D printers and chefs are giving them a whirl in the kitchen, using the technology to create intricately designed food. Doctors are even experimenting with using advanced printers to make artificial organs and prosthetic limbs.
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