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Flipdiscs

flipdisc.io

11–20 of 93 posts

Re: Flipdiscs

#11
post #9

I'd like to see someone play DOOM (or any game, really) using that flip disc screen!

I was thinking of Bad Apple!![1], but maybe that's too niche. 1. https://www.youtube.com/watch?v=FtutLA63Cp8

You made me wonder just how often Touhou is even mentioned on HN, so I did a quick search and... less than 15 results! (not counting dupes).

Niche indeed...

Re: Flipdiscs

#13
post #9

I'd like to see someone play DOOM (or any game, really) using that flip disc screen!

Tetris seems like a good fit -- given the frame to frame changes are minimal adjacent pixels, the responsiveness should be acceptable

Re: Flipdiscs

#14

They've been slowly replacing the flip-disc displays on the buses where I live with LEDs and LCD panels which has been such a shame. There is a beautiful mechanical satisfaction to a panel of flip-discs inverting and I genuinely find them easier to read.

Yes, even the ones that have an LED behind each disk which are on in the dark. This display [1] is the same but in the dark [2] you see the LEDs instead.

[2] https://www.urban-transport-magazine.com/wp-content/uploads/...

[1] https://cdn.unitycms.io/images/2padXosoqh99o13dcrN3co.jpg

Re: Flipdiscs

#15
There’s a very large one of these at “Climate Pledge Arena” in Seattle. Perhaps 8 feet tall and 16 feet wide. Pretty cool, but stuck pixels are even more annoying when it makes you want to reach out and poke them.

I use quotes because it will always be the Colosseum to me, where I saw the Butthole Surfers, Dead Moon and Nirvana. Don’t get me started on the Kingdome.

Re: Flipdiscs

#17
post #7

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 hidden behind quotes and it seems like it would take quite a lot of time to complete the whole display!

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.

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).

Re: Flipdiscs

#18
post #5

I bought a flip dot display on eBay and now I am stuck with the old thing and my lack of knowledge to make it work. Here's a great resource about technical details (only German though) https://radow.org/flip-dot.php EDIT: "They have high readability, a long lifespan, and achieves anywhere between 25-60fps" - I think you can't achieve 60fps with a flip dot display.

Depends how much power and noise you're willing for it to make!!

Remember that texas instruments DLP technology which is in use in pretty much every office/home cinema projector is effectively micro flip-dots micromachined in silicon, and that can operate at ~10,000 FPS.

Re: Flipdiscs

#20

That display needs some Conway’s Game of Life action pronto .

they have a gif at the bottom of the article which looks like game of life https://github.com/simpsoka/office-flipdisc/blob/main/scenes...

Dunno where your link is going, but yeah I see the gif at the bottom of the article now.

Still, I wanna see and hear it on the display.

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