Magazine article New Statesman (1996)

Not with a Bang but a Printer

Magazine article New Statesman (1996)

Not with a Bang but a Printer

Article excerpt

Samantha Cristoforetti is about to enjoy a trip to space. Formerly a fighter pilot in the Italian air force, the 37-year-old Cristoforetti is now a European Space Agency (ESA) astronaut. She will blast off with two others, a Russian and an American, in a Russian Soyuz rocket on 23 November. After a few hours, the trio will arrive at the International Space Station (ISS). We can say this with confidence because people have been making this trip for very long. This month marks the 14th year of human life in space.

We're not stopping at the space station, though. One of Cristoforetti's tasks will be to test the ESA's new 3D printer, a means to creating future space technology in orbit.

The development of 3D printing is another quiet revolution in progress. Just like a standard inkjet printer for paper documents, it places microscopic drops on to a surface--but these drops are molten plastic or metal. They solidify immediately and another drop can be placed on top of the first layer. Gradually, the drops build up to form an object created with extraordinary precision.

The ESA wants to test a 3D printer in orbit because this is likely to be the best place and method of building the equipment that will take us further out. On earth, firms such as Rolls-Royce are already making plans to use 3D printers to build parts for cars and aeroplanes. Recently, General Electric 3D-printed a fully functioning miniature jet engine. Nasa has created 3D-printed fuel injectors for its rocket engines. Airbus's experiments with 3D printers have enabled the company to reduce the number of components in its fuel injectors from 250 to two. Manufacturing has never looked so easy--or so promising.

The next step is 3D printing in space. Cristoforetti's task is to make sure the technology works in the near-absence of gravity. …

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