A man suspected of owning a 3D printer with components to make a gun said the seized equipment was \"not related to the gun \". Before that, police raided Greater Manchester on Thursday, where they seized computer equipment. The arrested man said the suspicious parts were just parts of the 3D printer. Experts also cast doubt on the claims, saying the parts were not complicated enough to make guns. 3D printing technology works through layers of material. Typical plastic Create complex entity objects. Greater Manchester Police say the parts have been sent to the National Bureau of Ballistics for further inspection. The results are expected to be announced in the next few days. The unit said whether they had found components that could make a \"viable\" gun, \"could not be said clearly \". MakerBot Industries, the US printer manufacturer that made these parts, said the company \"believed\" that the items in the photos were printer parts. Jennifer Howard, director of public relations at the company, said: \"We believe that the two items seized by the Manchester police are the parts of the extruder upgrade and the filament spool bracket, and you can print two upgrade items yourself. \"However, we can\'t be 100 sure because we don\'t have a 360 degree view of these items or we haven\'t checked it ourselves. Brian Derby, a professor of materials science at the University of Manchester, said the printer was \"a machine for amateurs \". He said: \"It will make something that looks like a gun, but it won\'t work like a gun. \"You have to buy an expensive machine for about £ 50,000, but you can get a real gun. \"It is unlikely that what is made will work. It is dangerous and will most likely hurt the people who use it. \"The arrested man, who declined to be named, was detained after a police raid by Verizon Shaw. \"I don\'t know why they think it\'s part of the gun,\" he said . \". \"It was designed by the company and it made the printer better into the printer. Steve Heywood, member of the National Firearms organization and assistant police chief, said: \"What I\'m saying is that it\'s actually very difficult to make the whole weapon. \"Even if you really made the weapon, it\'s still hard to launch because it will explode on your face. Officials, he said, \"it\'s absolutely legal to get a warrant from a magistrate, who goes in and searches what we do \". A gmp spokesman said earlier that if the tests showed that the components could be an effective weapon, it would be \"the first time the UK has seized such a weapon \". Asst Ch Con Heywood said: \"We have to be very clear that at this stage we can\'t say clearly that we have recycled the components for the 3D gun. \"What we seized was items that needed further forensic testing by the National ballistic experts to determine if they could be used to make truly viable firearms. \"We carefully determine what these components can be used for and whether they pose any threat. The raid is part of GMP\'s \"challenger operation\", which aims to \"dismantle\" organized criminal gangs. The price of buying a desktop 3D printer on the street is less than 1,000, but the price can be as high as 10,000. The world\'s first gun made using 3D printer technology was successfully launched in the United States. At the time, Europol, the European law enforcement agency, said it feared criminals would follow suit as the technology became cheaper and more user-friendly.