Amazing 3D printer

We’re going to need a lot of tools as we expand into space – to build and maintain space stations and craft.

However, the problem of how to replace tools should they break has always been a worry. After all, it’s quite an undertaking to fly them into orbit.

But now scientists believe astronauts will be able to build unlimited replacements – simply by printing them.

Theoretical physicist David Kaplan, from Johns Hopkins University, visits a company called Z Corporation in Burlington, Massachusetts, which specialises in 3D printers that can make almost anything – even with moving parts.

In the amazing film a huge adjustable wrench is first of all scanned into a computer, down to the accuracy of 40 microns – slightly less than the width of a human hair

http://www.dailymail.co.uk/sciencetech/article-2117570/Amazing-3D-printer-action-Watch-working-wrench-printed-powder.html