Lego printer writes 'Hello World' with felt-tipped pen (video)
![](https://s.yimg.com/ny/api/res/1.2/ZSn6r2G3D1W6NqUuRYQtqg--/YXBwaWQ9aGlnaGxhbmRlcjt3PTk2MDtoPTcxNw--/https://s.yimg.com/uu/api/res/1.2/_AZjSszvAuxdwIs_LcviKg--~B/aD00NDg7dz02MDA7YXBwaWQ9eXRhY2h5b24-/https://www.blogcdn.com/www.engadget.com/media/2010/06/100602-lego-01.jpg)
We've seen some pretty amazing Lego creations over the years, and this has to be one of our favorites. (Or at least, one of today's favorites.) A YouTuber named "horseattack" has assembled a Lego printer that uses little more than a felt tip pen to greet us all with a hearty "Hello World" (although we're sure it can write other stuff as well). And no sir, this isn't a Mindstorm kit... the design, coding, and construction are all from scratch. See for yourself after the break.