You may have heard of 3-D printing, but do you know how it works?

Here, the BBC explores how industrial 3-D printers can go from a nylon plastic powder to any conceivable shape.

3-D printing could revolutionize almost any industry. If the technology is taken to a ridiculously science fiction-like conclusion, you could print everything from a pizza to a new car. And there are people working on both.

At this factory in the United Kingdom, engineers are going to try to produce a bicycle in one go. They're not talking about producing each part and then assembling it; they want to take it out of the machine ready to ride. See what happens… via YouTube

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