4 ms·

This is insanely cool, the noise they make is also really satisfying! What was the cost/time breakdown of the entire project because the flipdisc prices are hi

• sen 5mo ago
  The prices I’ve seen mentioned are around USD$3-5 per “pixel”. Similar to all the ePaper projects that show up here, they’re expensive but cool gimmicks.
  • londons_explore 5mo ago
    Whole dollars per pixel is insane! The whole mechanism looks very 3d printable... I wonder if one could design one with PCB coils and a large 3d print only? If so, cost could probably come down to cents per pixel... You'd probably also need a single 'C' shaped piece of steel for the magnetic flux path, but you might be able to find a supplier for the right shape already used for something else you can buy in large quantities very cheaply (eg. Steel staples).
    • nottorp 5mo ago
      These mention 25-30 fps, so the mechanism may cost a bit to be that sturdy. I wonder if anyone makes cheaper versions that you're only supposed to update at 1 frame per minute or less...
    • tuumi 5mo ago
      This fella gave it a shot. https://hackaday.com/2021/05/29/3d-printed-flip-dots/ https://hackaday.com/2021/05/29/3d-printed-flip-dots/