3D printed hand without motors

kwatters's picture

Nitinol - Memory alloy

I've always wondered about this stuff.  The wire contracts when you put a current through it.  Ultimately, that heats the wire up and it returns to the form that it "remembers" at that temperature.  very cool, I wonder how strong and fast it is to react.

Here's some links for those that might want to read more about this bizarro metal alloy.