Relatedly, someone made a Braille printing robot out of a Lego one a while ago, too, and apparently went even further- https://www.usatoday.com/story/tech/2015/01/20/braille-lego-...
Relatedly, someone made a Braille printing robot out of a Lego one a while ago, too, and apparently went even further- https://www.usatoday.com/story/tech/2015/01/20/braille-lego-...