I'm really liking AutoCAD. Currently, my secret is to figure out how it all works. I had some interesting "adventures" trying to make the wedge tool work--for me, it doesn't. Anyways--when you don't know what to do do next, geometric drawing is what I do. I don't know exactly what to do about many "problems" but I've not added all that much detail yet. Last time, I was adding heavy armor to the ship. The point is you have to learn how the program works in 3D--my latest discovery was that the explode tool doesn't work well in 3D... the problem becomes that the 3D object is now separated into individual faces. Some other interesting stuff is getting used to layers--I have to turn off specific layers to be able to manipulate sub-objects, or rotation and move won't work correctly (as the points anchor the "unusable" axis--specifically to the closest face of another 3D object). Some other odd stuff--such as when you copy and paste objects, I have to turn off anything covering my view of 0,0,0 or the object will insert funny--then I have the hassle of trying to position it correctly. Anyways--once you get used to not being able to use all three relative coordinates, I find it becomes intuitive. Anyways--it's a hard program to conquer... mostly because courses start out slow (2D... blech! at least I can do whatever I want on it) and full licenses cost $1000+. I finally get to use those tax-dollars.