A couple of weeks ago, Dan Lasko, a 33-year-old Afghanistan war veteran from Pa., entered the pool at Long Island’s Eisenhower Park for a first test of 'The Fin' - a first of its kind custom-fitted 3D-printed prosthetic leg that permits an amputee to go straight from land into the water and back. For Dan, who only wanted to swim again with his kids, this remarkable 3D engineering is literally a life changer.
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