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Ultrathin business card runs a fluid simulation

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Re: Ultrathin business card runs a fluid simulation

#31

Post by unwind »

4gotunameagain wrote: post #18
Cthulhu_ wrote: post #12

Earlier quoted context omitted.

How much does it cost? The guest passes for hacker conferences are full-on computers these days, if this is in the same price bracket it would be a great idea for those.

There's a BOM, you can find out. Plus some peanuts for the PCB :) Now whether you get it populated or not.. https://github.com/Nicholas-L-Johnson/flip-card/blob/main/ki...

Just as a point of interest perhaps for folks who are not familiar with PCB design and modern electronics: the "huge" matrix of 21x21=441 LEDs would, with the specified LED from the bill of materials (BOM) cost all of $6.

That is based on the price for low quantity (1-500 pieces) though; if you were to build more than one board you would buy more LEDs, pushing the per-LED price (way) down. You can get 4,000 LEDs for $30.'

Edit: here is the LED in question, from the BOM [1].

[1]: https://jlcpcb.com/partdetail/C497920

Re: Ultrathin business card runs a fluid simulation

#32

Post by messe »

mritchie712 wrote: post #22
ChrisMarshallNY wrote: post #9

Very nice, but probably a bit too expensive to just hand out. I knew a chap that had a similar hardware business card (I don't remember exactly what it did, but it wasn't as cool as this one). I remember that his card was pretty scuffed up, and he insisted I give it back, after he handed it to me. Bit weird.

[flagged]

[flagged]

Re: Ultrathin business card runs a fluid simulation

#33

Post by chamomeal »

ChrisMarshallNY wrote: post #9

Very nice, but probably a bit too expensive to just hand out. I knew a chap that had a similar hardware business card (I don't remember exactly what it did, but it wasn't as cool as this one). I remember that his card was pretty scuffed up, and he insisted I give it back, after he handed it to me. Bit weird.

Maybe you wouldn’t give em to just anybody, but anybody who gets one is guaranteed to remember you!

I’d probably even keep it in my desk to play with. After a few weeks I’d accidentally have this guy’s email/linkedin memorized for eternity

Re: Ultrathin business card runs a fluid simulation

#34

Post by fidotron »

The typical Chinese sources have been selling "digital hourglass" type ornaments that work like this for a while.

There was a whole game based on this sort of thing back on the Acorn Archimedes: Cataclysm https://www.youtube.com/watch?v=3Byyz1Vlv8w It got remade for the 360, but the original was regarded at the time as surprisingly impressive for the machines it was running on.

Re: Ultrathin business card runs a fluid simulation

#35

Post by ChrisMarshallNY »

chamomeal wrote: post #33
ChrisMarshallNY wrote: post #9

Very nice, but probably a bit too expensive to just hand out. I knew a chap that had a similar hardware business card (I don't remember exactly what it did, but it wasn't as cool as this one). I remember that his card was pretty scuffed up, and he insisted I give it back, after he handed it to me. Bit weird.

Maybe you wouldn’t give em to just anybody, but anybody who gets one is guaranteed to remember you! I’d probably even keep it in my desk to play with. After a few weeks I’d accidentally have this guy’s email/linkedin memorized for eternity

This is true.

I remember a story linked from here, recently, where a designer submitted a CV that was a custom-made widget of some kind.

He got the job.

Re: Ultrathin business card runs a fluid simulation

#36

Post by Gracana »

mritchie712 wrote: post #22
ChrisMarshallNY wrote: post #9

Very nice, but probably a bit too expensive to just hand out. I knew a chap that had a similar hardware business card (I don't remember exactly what it did, but it wasn't as cool as this one). I remember that his card was pretty scuffed up, and he insisted I give it back, after he handed it to me. Bit weird.

[flagged]

Seems about right. $17/ea for a qty 10 order from JLCPCB. Rises to $25/ea if you do the minimum qty 5 order.

Re: Ultrathin business card runs a fluid simulation

#37

Post by catapart »

DonHopkins wrote: post #11

Instead of a business card, I'd love an ultrathin pleasure card you can refill with virtual beer and virtually drink! You could input your weight, and it could track you BAC! I made "PalmJoint", a beamable Palm pleasure card for CodeCon 2002, when everybody was beaming their contacts around by IR at conferences, I would beam an interactive doobie simulator a bunch of people could play together in a circle. Each perso…

Ha! That's pretty cool.

My first thought with this card was that it could be "gamified" into something that kids would probably love. A clique-y, social thing where kids could "pour" some of their fluid into another's card, with NFC or something. User preference colors that don't change when "poured" could help indicate how many different people have interacted with your card.

But enough spitballing. There's no killer idea there. Just something I'll be amused to see show up as a value-add for some other kind of toy, or whatever.

Re: Ultrathin business card runs a fluid simulation

#38

Post by Imustaskforhelp »

messe wrote: post #32
mritchie712 wrote: post #22

Earlier quoted context omitted.

[flagged]

[flagged]

Yeah but I guess they wanted to add something in the value for everyone of us while they didn't have ofc the whole knowledge to do so.

their heart might be in the right place tbh. But that's my 2 cents.

Re: Ultrathin business card runs a fluid simulation

#39

Post by alnwlsn »

rwmj wrote: post #6

Would love to see more information about how it was built. He must have worked with a company that can do the surface mount assembly?

>He must have worked with a company that can do the surface mount assembly

He did (there are centroid files in the production folder, which tell the board house where to put the components), but you'd be surprised at how possible it is to assemble something like this by hand. You won't believe me, but I find it easier than through-hole soldering (because you don't have to keep flipping the board over).

But there's a 99.9% chance this was done in-house at JLC or PCBWay.

Re: Ultrathin business card runs a fluid simulation

#40

Post by DonHopkins »

catapart wrote: post #37
DonHopkins wrote: post #11

Instead of a business card, I'd love an ultrathin pleasure card you can refill with virtual beer and virtually drink! You could input your weight, and it could track you BAC! I made "PalmJoint", a beamable Palm pleasure card for CodeCon 2002, when everybody was beaming their contacts around by IR at conferences, I would beam an interactive doobie simulator a bunch of people could play together in a circle. Each perso…

Ha! That's pretty cool. My first thought with this card was that it could be "gamified" into something that kids would probably love. A clique-y, social thing where kids could "pour" some of their fluid into another's card, with NFC or something. User preference colors that don't change when "poured" could help indicate how many different people have interacted with your card. But enough spitballing. There's no kille…

Liquid Pokemon Eggs and Sperm! Gotta catch it all!

Then you can lay the fertilized eggs at any GPS coordinate to gestate and hatch later on.

That could start a whole genre of AI (Artificial Insemination) Life Simulation games.

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