If you’re looking for a way to gauge how the 3D printing market will evolve, look no further than the dawn of two other revolutionizing technologies – the desktop printing market and the VHS standard. And be prepared for a decidedly off-color story. While many of us have fond memories of watching a favorite movie when it first came out on VHS, or admiring the first three-color party invitation we printed on a laser printer, the fact remains that innocent pursuits were not the sole reason…