Kurt Hofmann takes me mildly to task for pointing out that cheap zip guns a la the Liberator require nothing like the up-front costs of the new "printed pistol."
Mike Vanderboegh, perennial thorn in the sides of liberty-haters, observes that 3-D printing has yet to become anything approaching the most practical, effective means of arming oneself against the government's wishes. That is indisputably true, for the moment. 3-D printers' capabilities, though, will inevitably grow, while costs will inevitably fall. Meanwhile, creative innovators like those involved in the Wiki Weapons project will continue to find better ways to harness the technology that is available now.
Certainly. My point, if not perfectly expressed, was that anyone can make a firearm out of almost anything and that folks should not be limited to this new project. Certainly, as Kurt points out, the "printed gun" project has caused consternation in the enemy camp and thus is worth-while even if it ultimately fails (which I don't think it will).
I am reading a history of Prohibition at the moment called Last Call, and will have an essay based on that when I finish. The upshot is that gun prohibition will be even more difficult than alcohol prohibition -- which is to say impossible -- and far more deadly to the people who attempt to enforce it and, especially, their political masters.