Last night, my son Cade asked if I had ever heard of a 3-D printer.  I answered with no so he told me I had to see the most amazing thing ever.  After watching this short video, I had to agree.  This will simply blow you away!

This printer actually prints in 3-D.  I have no idea how it works, but it does.  He informed me that he learned in his technology class that the printer was actually an idea for NASA so space engineers could print a tool on site. Maybe they forgot one, or need one from scratch.  This printer can print ANYTHING in 3-D.

Watch the video and be amazed as they print a wrench that actually has all it's moving mechanical parts and works...from a printer; including all the stuff you see in the picture directly below.