I was taking to a friend (http://blog.konstrukshon.com/) tonight and I was showing him some 3D modeling I was playing with today. One of my clients wanted a tricky curving 3D shape and i was asked to think of a way to do it. The answer was to use a few tools and commands. Lines, Duplicate Array, Move 3D… Loft surface, shell solid and so on. All these tools and commands are covered in my new 3D modeling manual from NNA (http://www.nemetschek.net/training/guides.php ).