>>27
I totally expect 3D printers to be very heavily regulated with permits in the tens of thousands of dollars because of this plastic gun thing. Such a move will benefit large manufacturers and destroy any possibility of innovation in this space, since if such a permit were to be made into existence, it will be made certain from lobbying that the permit cost is high (prohibitive cost of entry into the market to keep new competitors out) and that permit holders can sublicense to small design firms after those firms sign all their shit away. Building and operating even a RepRap will be subject to fines.