For those in the know: yes, this header is indeed way up on the geek ladder. But it might not take as long as you might think before this science-fiction element joins the mobile phone and tablet in reality. And then you can use the quote to order a cup of tea just like Patrick Steward does. It will materialize right in front of you.
Granted, we’re still a long way off from the replicator. But 3D printing is starting to mature. You’ve probably seen examples, where the technology is used for e.g. rapid prototyping. And that is where you would expect to find this technique, right? It creates tactile mock-ups of your designs, directly from the digital drawing board. The technology is becoming more and more accessible. You can order your design from a company that specializes in 3D printing (you might have seen them at this year’s Dutch Design Week), or you can learn how to use one at one of the many Fab Labs. You can even hack your old Deskjet to create your own DIY 3D printer.
But human nature wouldn’t be human nature if we stopped at inorganic objects. For instance, researchers at Cornell University’s Cornell Creative Machines Lab created a 3D food printer. It prints everything that you can squirt out through a syringe, from cake icing to masa (tortilla dough).
Though a culinary application of 3D printing looks great on the menu, it doesn’t really benefit mankind. So what about medical applications? One of the links above already mentioned the use of bone rapid prototyping, but what if we could print bone directly? With the right materials, anything can be constructed. Use keratin and print a fingernail. The correct mixture of minerals prints enamel to repair damaged teeth. Use of 3D printing in bioscaffolding is already being discussed.
And what if we could print living tissue? Veins, nerves, muscle tissue? Eventually we might be able to reproduce single cells. The printing techniques would have to scale down to the nano level, but since we’re already able to build a car at this scale, anything is possible.
And with that, we’ve come full circle. When 3D printing on an atomic level becomes possible, the sky is the limit in terms of what we would be able to create. Including your cup of Earl Grey. With a twist of lemon.


Uncle science needs you, and not just as a test subject. Scientists from all kinds of disciplines roam the earth (OK, the internet) in search of help. They have been doing that since the beginning of the earth (OK, the internet) – remember 



