[marktwain]

Making a metal barrel or barrel liner to greatly extend the life of the pistol would be child's play.

[ClearCase_guy]

Once plastic guns can be made quickly and easily by anyone at anytime, then registration and licensing really becomes a waste of effort -- we go back to the Constitution and a recognition that the right cannot be infringed, because ... well ... you can't really infringe it.

And at that point, the plastic doesn't matter, and the same freedom will devolve to traditional metal guns. Why not?

[gaijin]

Now we see why lezbo so badly wants to control AMMO, right?

[Kevmo]

I’m glad this guy is embarking on this effort. I hope he escapes the resulting rage of the PTBs who are scared shiiteless by his progress.

[Nowhere Man]

A side note, this will be a boon to people who like to restore old cars too. If you need to replace a door handle, a strut or part of a frame to a 1965 Buick Special, all you have to do is have the blueprints, computer and 3D printer and you’re good to go.

[ltc8k6]

Would need to mic the barrel to see if it was still okay.

[Chode]

time has come today...

[catnipman]

Looks like a hi-tek zip gun to me.

[null and void]

3-D Printer Ping!

[DemforBush]

“the Liberator” in an homage to the cheap, one-shot pistols designed to be air-dropped by the Allies over France during its Nazi occupation in World War II.”

Bit of trivia about the Liberator pistol. It was unusual in that it took longer to use than to it did to build one. The production specs estimated that it would take an average of 8-10 seconds to manually place a round in the chamber, prime the plunger, and then pull the trigger. Assembly time for each Liberator (using pre-stamped parts) at the Anderson, Indiana factory was just under six seconds per pistol. Spent casings were removed with the use of a dowel rod.

[servo1969]

Link

http://www.forbes.com/sites/andygreenberg/2013/05/05/meet-the-liberator-test-firing-the-worlds-first-fully-3d-printed-gun/

[Southack]

Metal barrels/liners are fine, but hardware store products such as JB Weld (perhaps something better, just an idea) could be used on the exterior, or the plastic barrel could be made larger so that the JB Weld could coat the interior.

Anyway, you are still talking about products so common that regulation is not feasible.

Moreover, future 3D-Printed guns might follow the high-speed Metal-Storm design for full auto and digital firing...maybe datalinked to iphones when remote firing is desired.

Tyrants can’t stop technological progress once the genie is out of the bottle.

[Fresh Wind]

Get your 3D printer now, before King Barry demands registration, licensing, and eventually confiscation.

But, as the technology evolves, 3D printers will be used to replicate themselves.

Checkmate.

[Lurkina.n.Learnin]

There is a market for 3D models. You can buy or sell the plans for different items

3D Burrito is a new design marketplace where people can buy models for 3D printers
http://thenextweb.com/insider/2013/04/30/3d-burrito-is-a-new-design-marketplace-where-people-can-buy-models-for-3d-printers/?fromcat=all