Papierfliegerei 3D printed most of the parts to build his machine gun. It does not use any propellent but is electric powered. Ok, the title I used is a little misleading. It is a machine gun by definition since it shoots multiple projectiles with one squeeze of the trigger. However this is not a firearm and he doesn’t shoot at paper airplanes. It shoots out paper airplanes as projectiles.
At first I was not impressed. The rate of fire is painfully slow. In my mind, he has some sort of hopper of paper airplanes and this machine gun just spits them out. Oh how wrong I was. This machine gun makes its projectiles.
It has an internal magazine loaded with sheets of paper. The machine chambers a sheet of paper from the internal magazine and, in an assembly line fashion, it forms the paper into an airplane then launches them.