Brayden Armstrong has a new arm, and it's thanks to a man with a 3-D printer and a little know-how.

The Bay City boy was born with no left arm. His mom tell WNEM that a prosthetic limb can cost roughly $16,000, and that the 6-year old's teacher introduced her to Andy Sosnowski. Sosnowski gathered information from internet, and used his 3-D printer to create an arm for the boy for about $50.

"I got a hold of all the materials I needed to do it through enabling the They have all the instructions and materials needed on their website."