Dear Community: I am from Buenos Aires, and of course new in this neighborhood. I want to ask you to recommend me a free 3d version program, compatible with Shapeways, to start with a very simple design. I will tell you the true. I am unemployed in this moment, and consequently cannot buy a program. But if I start with something easy, I would some $ to eat, and to buy a good program to follows. Regards. HÃ©ctor.