3D printing works by building up layer upon layer of material - typically plastic - to build complex solid objects.
Templates can be bought or downloaded and sent to printers - now available for domestic consumer use - and the products are built in minutes by the machines.
Common uses include jewellery, shoes and mobile phone cases but it is thought in future we will see clothing, medical devices and consumer electronics printed at home in this way.
More top news
The anti-war President is now in combat in two Middle Eastern countries.
Prince Harry received a great big hug from four-year-old Carson Hartley.
The mother of "bucket list" cancer patient Stephen Sutton has said signs of her son's illness were "ignored".