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Like any tool, this can and will be misused.
But I think if you took the time to familiarize yourself with the ethics of the people who are building these sorts of tools, you'd find a lot of common ground.
They dislike the Disposable Society just as much as you do. Arguably even more, and for a lot longer. Chastizing them will certainly do nothing to help either cause.
9 months, 3 weeks ago on 3-D Printing: Inspiring Creativity or Just Proliferating More Plastic Crap?