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How cheap 3D printers built a replacement hand for a five-year old boy

First video shows boy picking up coins with his new hand. Really talking about the possibilities for cheaper products say for less developed countries. In the U.S. and elsewhere there is money enough for plenty of people to buy a nicer prosthetic. However, with all of the other people not having lots to spend, how could they not purchase a cheaper version?

I guess I like to see the improved precision and aesthetics of a more expensive, higher end printer (like some DDD printers) but what if most everyone can get by with just an ok one? In other words we just print the cheapest throw away stuff like the world mostly does now? If that happens then I am concerned for long term gains for DDD (The Cube in particular) trying to go into the home environment. I just don't see a lot of profit in it. I think the cheaper printers will own most of the residential market.

Second video is like Nightmare on Elm Street with the claw/razor/fingers this guy designed... Cool stuff but scary thinking what weapons might be designed to attach to a person's arm or something.
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