Krein said
What does a 3D printer do and how does it even work?
It prints out a 3d model by basically layering plastic on top of plastic, making one solid plastic object. If your interested, PM me with what you want pritned out and I'll tell ya what it'll cost.
It uses a... Lets say it uses a glue gun that has plastic instead of glue to print out stuff. It takes a loong time for large pieces though.
If I don't have to make the model for the printer to print out or paint it, theres a good chance that shipping will cost more than the plastic figurine or wahtever.