So he said he has fired over 200 rounds so far with no problems. What does this mean for society? We will probably live to see an age where 3d printers can make anything out of poop and dirt, and then a 3d printer that can make a 3d printer! Bottom line, fuck patents, ring in the printer's age.
Nice. And if my understanding of the US gun laws are correct, since that makes you the "manufacturer" of the weapon (the lower receiver, with the serial number is, effectively the "gun", and everything else can be bought as replacement parts), you don't have to register it or anything?
And yes, Printers can already make ~60% of the parts needed to make another printer. Certainly all the structural parts, and they're working on the control circuits. Printing circuit boards is a complex process.
Here's a nifty little story By Cory Doctorow, "Printcrime" http://craphound.com/?p=573