Jeez, guys, give it a rest and watch Monk if you're feeling investigatory. I think it's clear that 3-d printing is well on it's way to being a viable option for parts manufacturing. iab may have exaggerated the (low) cost, but the example is sound in concept. Can we all please be adults and move on?
Any thoughts on what I mentioned regarding square taper cranks and bottom brackets? Or do most people think those are safe? Are they still spec'd on lower end hybrids and such, or have external bottom bracket cranks replaced them by now?