I agree with John Ridge's comment on this article. Just because we can, doesn't mean that we should!! If we aren't careful, one day we are gonna invent something that will fall into the WRONG hands and kill us all--- or, ENSLAVE us!!! Oh yeah--- we've already done it!!! Why did you have to make it capable of firing off missles??? WHAT THE HECK WERE YOU THINKING???!!!
3D-printing has come a long way — from crude plastic prototypes to fully functional metal parts and human tissue scaffolds. What began as a rapid prototyping tool is now reshaping manufacturing, medicine, aerospace, and even food production.