3D Stuffmaker
For 6-year-old Alex, 3-D printing means a new arm – Today.com RT (blog)For 6-year-old Alex, 3-D printing means a new armToday.comLike shoes, they are easily outgrown, which is why 6-year-old Alex Pring was so happy when an engineering student and his friends found a way to 3-D print a new right arm for him. Alex's …