Lego has proven itself an enduring toy for children and engineers alike. Here’s a video showing a working Lego printer. LEGO
According to ‘Horseattack’ who posted the video on YouTube: "It’s a Lego felt tip 110" printer connected to an Apple Mac. This is not a kit you can buy and does not use Mindstorms (a line of programmable robotics/construction toys, manufactured by Lego). I designed/built/coded it all from scratch including analog motor electronics, sensors and printer driver, the USB interface uses a ‘wiring’ board."
Lego is a plastic building block toy invented in Denmark in 1958 and currently has over 400 billion of the bricks produced.
Not sure what you’ve been missing, visit www.lego.com.