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Boy invents himself a prosthetic arm using Legos

Shared by Ana Duarte on 2018-04-04 16:32

About the solution

David was always obsessed with Legos: he built toys and vehicles ever since he was a kid. That led him to develop a prosthetic limb. He started creating his prosthetic arm when he was nine years old – and he is constantly improving his creation.

"When I move the arm, the hand opens and closes, which allows me to grab things. With what was a toy I have managed to get achieve my dream”, the inventor explained.

It took all these years for David to come up with this device because the Lego bricks available when he started this project weren’t strong enough to withstand the rigors of the inventor’s daily life.

As soon as the pieces were more adequate, David used a Lego helicopter and jet plane kit to create his new arm. The prosthetic arm is equipped with a battery that works a bicep muscle and has fishing line within the arm to allow David to manipulate the limb beyond his body’s capabilities.

David is now working on his second prosthetic Lego arm: MK-II Project.

Adapted from: https://archive.nerdist.com/lego-prosthetic-arm/


This solution shall not include mention to the use of drugs, chemicals or biologicals (including food); invasive devices; offensive, commercial or inherently dangerous content. This solution was not medically validated. Proceed with caution! If you have any doubts, please consult with a health professional.

About the author

David Aguilar, born in 1999, in Andorra, is a student who was born with an arm that was not fully developed. He built himself a prosthetic arm using Lego bricks that allows him to grasp objects, which he developed after felting this need in order to perform mundane daily tasks.

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