![3d-printed-playing-card-clock-gives-vegas-spin-to-old-school-flip-clocks](https://utterbuzz.com/wp-content/uploads/2022/08/3d-printed-playing-card-clock-gives-vegas-spin-to-old-school-flip-clocks.gif)
Before LCDs and LEDs became cheap enough to add to nearly any device, mechanical flap displays were used in large-scale signage and bedside alarm clocks for improved legibility. Shinsaku Hiura has recreated one from scratch with a fun twist: they’ve replaced the numbered flaps with playing cards, a design that will…