Go see John Bonanni’s original post (Facebook account required), but this image illustrates the transformative power of 3D printing. It’s a 1/35 fire extinguisher bracket, or a similar such appurtenance, that would be impossible in injection molded styrene, and a frustrating bending-and-folding puzzle in photoetch.
What does this mean for modelers? 3D printing won’t replace photoetch or resin casting as an aftermarket production medium, but it is certainly proving itself as a competitive and possibly superior alternative. And though there are probably not data to prove this, I suspect that more modelers are dabbling in 3D printing at home than those who made their own home-brew photoetch or latex molds for resin casting when those technologies were still new.