You bring up good points. Also, interesting that Carbon3d's CEO, (Carbon3d being 3d printer that indeed works by curing resin with light), from the beginning h

You bring up good points. Also, interesting that Carbon3d's CEO, (Carbon3d being 3d printer that indeed works by curing resin with light), from the beginning has been flaunting future applications in biological sciences: http://www.popularmechanics.com/technology/a14586/carbon3d-3d-printer-resin/ http://www.popularmechanics.com/technology/a14586/carbon3d-3... I feel like there should be a two troughs to the hype cycle: https://commons.wikimedia.org/wiki/File:Gartner_Hype_Cycle.svg https://commons.wikimedia.org/wiki/File:Gartner_Hype_Cycle.s... One for the normal disillusionment, the second for discovering that this new hot thing is actually bad in some notable way. And then sometimes we recover from that, sometimes we don't. I think light-curing 3dprinters will never catch on in a big way, because I can't imagine normal people handling the uncured resins in a safe way on a mass scale. Article link suggests that much of the bad stuff happened with the stereolithagrphy printers, I hope more research is done on safety of FDM printers. While polylactic acid (safest material that can be used) is basically corn... inhaling burning corn fumes is still probably carcinogenic.