I have Solidworks, and room in my reloading room. :-) There are high-strength nylon and even metal 3d printers, the nylon printers can do different materials depending on product.
It's actually legal to "manufacture" your own firearms, but you can't buy or sell...
My Feedback
"When law and morality contradict each other, the citizen has the cruel alternative of either losing his moral sense or losing his respect for the law." -Frederic Bastiat
"I am a conservative. Quite possibly I am on the losing side; often I think so. Yet, out of a curious perversity I had rather lose with Socrates, let us say, than win with Lenin."
― Russell Kirk, Author of The Conservative Mind
How is this going to effect linked, belt fed guns?
I wonder about that, too.
Back in 2004, when it wasn't clear whether the federal ban was going away or not, I had simply figured that if the ban was made permanent, I'd just dump the money into a Shrike upper and a metric load of links.
RATATATATATATATATATATABLAM
If there's nothing wrong with having to show an ID to buy a gun, there's nothing wrong with having to show an ID to vote.
For legal reasons, that's a joke.
http://defcad.org/
AR15 lowers and magazines.