Brick by Lego brick, youth builds his own prosthetic arm

David Aguilar has built himself a robotic prosthetic arm using Lego pieces after being born without a right forearm due to a rare genetic condition. Aguilar, 19, who studies bioengineering at the Universitat Internacional de Catalunya in Spain, is already using his fourth model of the colourful prosthetic and his dream is to design affordable robotic limbs for those who need them.