I didn't mean to suggest that we ought to buy the parts pre-made, I meant to suggest that having robots make our artistic visions come to life would be far more reliable and safer than making the parts ourselves. I have had the joy of making things myself, and out of a variety of materials including wood, aluminum, and polycarbonate (we custom-tool many things on our robotics team). Having the Proto-Trax do the fine milling really makes the fit-and-finish smooth while still allowing us to create innovative and unique robots.
-Penguin