Engineer Ivan Miranda has done it once again. A 3D-printing buff, he’s brought us some wild creations in the past. His most recent one is the scroller that uses black and white marbles to display text. By making it giant and round, Miranda ensured it can keep displaying text endlessly. Whether it’s a text message or a long letter, the scroller can display it all. 

If you and I had unlimited access to a 3D printer, what would we print? An action figure? A musical instrument maybe? Perhaps even a to-scale model of a bike, car, airplane, or rocket. But this is where YouTubers are different. 

They don’t think about what one can do in an afternoon or over a weekend. The vision extends over weeks and months, and the final video you see is just a snippet of the work that went on behind the scenes. 

Interesting Engineering has previously covered Miranda’s builds, and they consisted of a motorbike, go-kart, and even a treadmill. Needless to say, they were not to-scale models but working ones. While these are impressive, Miranda does have a online reputation for building display clocks with marbles, and this time, he has gone above and beyond his previous achievements. 

For his latest, Miranda has ditched the digits of his digital clocks for text. In theory, if you can do digits, you can do text. The major difference, however, is where and how these letters are displayed. While the digital clock and its variations had to contend with changing numbers, everything happened in a relatively small space.

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