A 12-year-old boy has invented a Braille printer that costs about $1,650 less than the ones that are available today.

Shubham Banerjee is in grade seven in Santa Clara, California.

He used a Lego Mindstorms kit and added five dollars’ worth of parts he bought at a hardware store to create what he calls a Braigo.

His Braigo costs about $349 to make.