Have ever seen those fancy old style displays in train stations or airports? I find them very nice and after I saw an instructable about this topic I decided to make one for me.

I don’t have possibilities to use laser cutter or similar cutting tools, but I have a good access to 3d printers. So, the plan was set and the 3d printing was my aim.

Step 1: What Do You Need?

  • Time and more time
  • 1 Arduino Uno or Mega (depending how many displays you want to have)

For one segment one needs:

  • 28BYJ-48 Stepper Motor with ULN2003 Driver
  • 60 needles with diameter of ~0.5mm
  • A lot of M3x12mm screws
  • 4 M3x8mm screws
  • 4 M3 nuts A
  • hall sensor
  • A 2x8mm magnet
  • A MR115ZZ (5x11x4mm) ball bearing
  • A breadboard
  • Jumper wires
  • Cable-ties
  • Self-gluing paper
  • 2N2222 transistor
  • M3 coupling nuts with fitting M3 screws (if you want to connect several segments)
  • Real time clock (optional, if you want to show time)


  • 3d printer
  • Soldering iron
  • M3 threading bit (probably it would work without it too)
  • A 1mm drill would be handy
<p>Nice work! Any video to the ACTUAL speed of the letter changes?</p>
<p>I added a longer video in the conclusion. The last part is in actual speed</p>
<p>Wow, I'm exhausted just reading the instructable. Really makes me appreciate how much effort went into those &quot;simple&quot; old fashioned displays. Awesome build and thanks for sharing.</p>

About This Instructable




Bio: I like to make for myself all kind of gadgets
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