Researchers have now discovered a method for 3D printing using one of the world's greatest renewable resources, cellulose? On top of this, they have found that by combining carbon nanotubes with this cellulose material, they are able to print objects constructed of cellulose but exhibiting conductive properties similar to metals. This opens the door for a lot of possibilities in the future. Read and see more at: http://3dprint.com/73925/3d-printing-cellulose