For those of us without $100-$1000 to spend on Rhino, SolidWorks, or other CAD programs, there has to be something better than most of the free CAD software out there. After much looking for a satisfactory free CAD program, I found DraftSight from Dassault Systemes. While not able to work with Bezier curves or some of the more complicated things that the paid ones will, DraftSight will do just about anything I've ever needed. Some examples include: There are other nice features of DraftSight, but they are too numerous to list here. If you want to explore them further, you can download it from Here