When I tested DoubleCAD with existing DWG files, and it is the best at working with files of diverse origin. I was seriously going to place an order for TurboCAD as it seemed to be the best value.
I know CAD apps don t have FEI as a rule, but getting a detailed drawing would help me tremendously. I have some products I want to test and patent. I bought my first computer in 1994 to learn CAD. I had actually considered writing to AutoDesk suggesting a free version to expand and hold their installed users base. I am stunned that such a great application is free.