3D printing is a form of additive manufacturing technology where a
three dimensional object is created by laying down successive layers of
material. 3D printers are generally faster, more affordable and easier
to use than other additive manufacturing technologies. 3D printers
offer product developers the ability to print parts and assemblies made
of several materials with different mechanical and physical properties
in a single build process. Advanced 3D printing technologies yield
models that can serve as product prototypes.
1 Comments in Response to 3D printing with colored movable parts
Yes and organs too:
http://www.rawstory.com/rawreplay/2011/07/researcher-explains-3d-cell-printer-that-can-create-organs/
http://www.lewrockwell.com/blog/lewrw/archives/91048.html
http://www.rawstory.com/rs/2011/07/07/landmark-transplant-uses-stemcell-coated-artificial-windpipe/