Burt Rutan brushes convention aside and begins with a clean sheet of paper - or more recently, with a clear computer screen. Like other prolific designers, Rutan's objection to conventional 3D CAD is that it gets in the way, between concept and drawing. It works the way I think. Now, with Vellum Solids, Rutan's company got the sophisticated CAD surfacing that aircraft designers need most. The Drafting Assistant TM infers the operations you may wish to perform and displays temporary construction lines that preview the result of various logical choices on the fly.
Vellum enhances creativity by removing all impediments from the drawing process.
In many ways, it's a better sketching tool than pencil and paper . Its odd asymmetrical shape seems whimsical but, in fact, results in an extremely safe and efficient aircraft. He is the first to tell you that Vellum is the only tool available that makes this kind of design exploration possible. In 2D, it cuts through the tedium of defining each entity and lets you draw what's on your mind. In 3D, it's a breakthrough in navigating your way through virtual space and drawing freely and quickly.