Hi Tyéri, there's a feature request thread over here for v3:
http://moi3d.com/forum/index.php?webtag=MOI&msg=3628.1

What I think will probably happen for v3 is that I'll try to make a 2D hidden line export mechanism for generating 2D AI or DXF files, then you would be able to take those files into a variety of 2D CAD or illustration programs (there are many free or very inexpensive programs of that type) and then print from there.

Eventually I do want to include printing built directly into MoI, but that is probably not likely for v3.

- Michael