A German designer recently built an automatic machine gun but instead of firing bullets, this gun can fire paper planes.
>>>Close-up of the "genuine" gun from the world's first 3D printer
Automatic paper folding gun.(Photo taken from video)
The most impressive thing is that you just need to put the paper in and the gun will automatically fold them into a paper plane before launching out of the barrel. This special gun is made entirely of 3D printing technology.
