It’s called CNC and you can get a really nice one for about $50K... $100K can make about anything...
World’s First 3D Printed Metal Gun Successfully Fires 600+ Rounds
http://www.freerepublic.com/focus/f-chat/3091568/posts
New 3D Printer by MarkForged Can Print With Carbon Fiber
http://www.freerepublic.com/focus/f-news/3116497/posts
Titanium powder used to print automotive parts in 3D news
http://www.freerepublic.com/focus/f-news/3107347/posts
17-Year-Old Creates Affordable 3D Metal Printer – Hopes to Launch Kickstarter Campaign
http://www.freerepublic.com/focus/f-bloggers/3166605/posts