If you expected to find a manual on "How to 3D print a gun" then I have to disappoint you.

Since there seems to be a scare tactic doing it's round to scare all of us into copyright slavery, I just want to point out a few facts.

• Everyone can make a knife from a piece of metal.
• Everyone can make a bomb from household items.
• Everyone can push you in front of a train.
• etc.

So what is the problem if someone can print a gun?

Is everyone making knives, or guns, or pushing others in front of trains?

NO they don't.

And still, you also have to print a WORKING gun, AND make WORKING ammo.

So for those who want to learn how to make a gun, OK, yes they CAN. And yes, they will learn something and get smarter.

If they actually will use the gun that is another issue and it has nothing to do with 3d printing. since everyone already can make a gun, and they don't even need a 3d printer.

The only reason why Americans seem to get scared of this is because a spotlight hungry boy with a dark expression on his face is all over the US media circus and shouting: "WHAAAA I can print a gun! (with a multi thousand dollar 3D printer). Are you now scared of me!!!???"

I'm not. He is probably the scared one, since he seems to feel the need to make a gun.

Everyone can use knife to kill, in every kitchen you can find a knife, is averyone killing people with knifes?

It's even funny to see how the guy poses with a 'dangerous' look.

All in all, the biggest danger is that you might laugh yourself to death over this non-issue.

And a final solution could be to close all factories that produce bullets. Then you can print all the guns you want, but then there is nothing to shoot with.

EDIT:

This post pionts out anoter issue. Guns are made by machines, a CNC lathe that makes a gun barrel is a machine that everyone can buy and own.
http://www.publicknowledge.org/blog/legislating-headlines-makes-you-look-jerk

For more political propaganda, just read a newspaper.