If you want to produce a 3d object from a 3d model and you dont have a 3d printer but have some paper and glue you can do it manually.
Here are the two tutorials, a simpler and a more complex one:
http://www.instructables.com/id/3D-cardstock-printing-without-printer/
http://www.instructables.com/id/3D-Print-with-Paper/?ALLSTEPS
They describe software toolpath and techniques...
You can get finer surfaces and color with some post-processing: