`` My hope is that she grows up to be as independent as she can , '' says Jennifer . Von Mohn was born with a disease that makes her physically weak . She uses an ability called a ` ` arm '' -- robotic arms made from 3-D printing . It allows her to raise her arms without assistance .
Von Mohn was born with a disease that makes her physically weak . She uses an ability called a ` ` arm '' -- robotic arms made from 3-D printing . It allows her to raise her arms without assistance .