marble machine

Giant 3D-Printed Wheel Writing Endless Scrolling Text This Giant 3D-Printed Wheel Writes Endless Scrolling Text With Black and White Marbles, After 30+ Hours of Testing

Marble machines usually stop at clocks, with a fixed number of digits and a fixed amount of space. Ivan Miranda wanted a display that never runs out of room. His new Marble Scroller is a huge 3D-printed wheel that writes text in black and white marbles using a 7x5 pixel font, lets each line roll off the other side and then recycles the same marbles to write the next one. It can do uppercase,…