Simple 3D Printed Seven-Segment Displays

7-segment LED displays were revolutionary, finally providing a clear, readable and low-power numerical display solution. We’ve got plenty of other cheap display options now, but sometimes you just need the old nought-through-nine, and in a big, visible package, to boot. For those circumstances, consider whipping up a set of these 3D-printed seven-segment displays.

The build consists of a 3D printed frame, with each segment containing two WS2812B addressable LEDs. Each 7-segment assembly is then wired so they can be daisy chained, passing on data to the next digit in the chain. Paper is used to diffuse the LEDs for a smoother look, and a white 3D printed cover is printed for each digit to further spread the light and give a clean finish.

Being based on the WS2812Bs, it’s easy to drive such displays with just about any microcontroller or GPIO-equipped Linux board out there. We love big, beautiful displays – and the more artistic, the better. Video after the break.


7 thoughts on “Simple 3D Printed Seven-Segment Displays

    1. Not sure what you mean by “the only one.” The only what? There are all sorts of display methods.

      14 segment displays, which is like a 7 segment but with a vertical center bar and a diagonal bar from the corner to the center of each of the four quadrants, are relatively common for displaying letters as well as digits. The first known example of using the 7-segment-like pattern for digits was an 8-segement method for printing on teletype tape that used a diagonal bar for the number four. Dot matrix displays are a rectangular grid of points and come in all sorts of different values for height and width. And of course there are all sorts of custom displays.

  1. I recently finished a similar project with 12″ high digits and six neopixels per segment. Digits are held off the wall by standoffs and all wiring is run through the standoffs and hidden behind the drywall for a clean look.

Leave a Reply

Please be kind and respectful to help make the comments section excellent. (Comment Policy)

This site uses Akismet to reduce spam. Learn how your comment data is processed.