14 DAY TRIAL // Braille is the “written” (more like punctured or dotted) language that allows blind people to read books, notes, signs, etc.
Normally, a braille printer retails for $2,000 / €1,458 or more, but a 12-year-old, seventh grader built one that goes for just $350 / €255.
It was possible to attain that low price because the boy didn't actually buy anything but a LEGO kit, then proceeded to build a braille printer out of it.
Granted, $350 / €255 is a lot for a LEGO kit, even the EV3 Mindstorms released in 2013, but not if you know exactly what you want to make from it.
The device can print manual input and uses a standard roll of calculator printer paper, plus a robotic arm featuring a push pin. A letter takes five-seven seconds to print through, at one letter per line.
Shubham Banerjee (the young inventor) will release his invention into the open source community, in case someone wants to take it further.