MakerbotMars Wet Workshop

Here is my design for a wet workshop concept for a Mars base. Some of the designs out there are very impressive but overlook one big problem: Getting lots of material to Mars and landing it there safely is very difficult and expensive. The "wet workshop" concept has been thought of before, but never carried out. It has been talked about using the external tank on the shuttles, and the second stage of the Saturn V, and here is my idea for a Mars base. There are several stages for the mission to b