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"Robbie Frei’s father lost part of his arm serving in Iraq, so Robbie designed him a new one – then shared his design so people around the world can 3D print their own prosthetics."

1 comment

  • dewtattoo

    dewtattoo 4 years, 6 months ago

    Good for this young man. These are the kinds of stories I like to hear. A good kid, doing a good thing for his dad, and in turn helping out others. Thanks for sharing.