I love how you mentioned the price & cost of such a build so as I a viewer can relate.... its fundamental info that so many forgets or simply wont incl.. so kudos for that.. impressive build..
Your pain, our gain. Thanks for hanging in there, through setbacks. You are smart AND humorous with the shake / vomit bit. I hope you are rewarded for your efforts.
Great project. Sharing some ideas: 1) white circuit board to improve reflectance 2) thinner diffuse 3) modeling to higher virtual pixel count then blending based on proximity to physical pixels - for smoother animation and illusion of higher resolution. 4) pre crease the triangle edges to achieve s cleans edge without stress on glue. 5) print gradient channel for cable foldback to guide cable inward at gradual angle and reduce stress. I look forward to future iterations.
There are two ways to improve this. First for the current build use a double diffusion. I wrote an article on Instructables once explaining that technique. Could go deep into the math but basically measure the distance between the LEDs, put a sphere with a material that has half the diffusion value of your outer sphere at a distance that is half the distance between the LEDs, then put the outer diffuser over it at a distance that equals distance between LEDs. Would get rid of the artifacts from seams and also makes it much more display like. Second idea would be using fiber optics. It would need a flat base that is larger then the sphere to house the LEDs but can then send the light from the LEDs to the diffuser sphere with varying length fiber optic cables. Could increase the pixel density a lot cause you could basically make it as dense as the fibers are thick. Just limited by the amount of LEDs you can fit in the base and amount of LEDs you are willing to put in. But can do even spacing better and just needs a bit of math to transform the flat image onto spherical locations.
You’re only at 10% brightness, that gave me an idea: use a flat (circular?) lcd, shine a light from below, and use a lens to project the image on the sphere? That would give you decent resolution, lower the price, and maybe be easier to build.
Maybe combine an lcd with glas fibre. Superglue glas fibers on top of an LCD and arrange the other ends in a 3D printed sphere. Then put the difusor on top.
@@CarlBugeja solving a bit of hard math once is cheaper than hardware :P also what about cheap square flexible OLED panels, with the corners tucked into the sphere to make the triangles?
I recently printed a moon that is illuminated from the inside with one light. Your video gave me the idea of displaying the current moon phase by using spherical LED strips + ESP and some programming.
One aspect of your video I rather liked was that you weren't at all afraid of sharing your mistakes. Thank you kindly, it was a really interesting video!
@@CarlBugeja You can always tell the viewer, that the video is over and that you touch upon some math topics such as mappings. No problem for the normal viewer and some people may enjoy it as well.
Yeah please explain the mapping process and how you figured out a way to create a library to map any image into the way pixels are arranged.. also can you make it open source?
Very nicely done! As someone who has been to The Sphere and experienced it firsthand, I can say your little mini-Sphere is a wonderful reproduction. Seeing The Sphere in person was absolutely incredible. I sincerely hope you get the chance to experience it yourself. I have no doubt you'll be absolutely blown away by it.
The thing I really appreciate about Carl is just how much joy he's clearly getting out of these explorations. I love seeing people visibly stimulated by what they're doing. It's infectious!
Awesome idea. The optics might be challenging, to project a 2D image onto a 3D sphere. Could it be a fisheye lens but used in reverse ? So that it projects the image on the sphere ? It's interesting :).
Would it be feasible to use a dense bundle of optic fibers? Like, connecting them to the inside panels of the geodesic dome and running bundles to rgb lights. It would take a long time to make, but you could reduce the size of the triangles more, eliminating the gaps between the panels and the shell (which causes a lot of blur).
Amazing work Carl! There are less expensive 1mm addressable RGB LEDs available. For example XINGLIGHT XL-1010RGBC-WS2812B (available on LCSC) for $0.0312 in quantities of 8,000 or more. I've used them in several of my builds, and they also seem to have a much lower quiescent current draw than others I've used.
great build, loved how you mentioned the price it just puts the las vegas 'sphere' $2.3bil price tag into better perspective for most people. It is truly a great technological achievement; you should be proud you were able to scale it down so well.
A few ideas: - You might be able to source small triangular LED screens, I imagine that even if these do exist integration and cost would be terrible - Make use of an LED screen underneath an object that directs the light to maintain a perpendicular path to the screen, cutting it into the shape of a sphere. Then cover that in a diffusive surface. Basically, the guides act as glass fibres that direct the light from the screen to the surface, look up "Photonic Crystals periodic in two directions". I imagine sourcing that would be near impossible but there may be alternative methods for achieving a similar effect: high-resolution 3D printed structure coated in a highly reflective material,
Smart idea, like some very danse 4k mobile screen, and to get the right diffuse to the parts that get projected in more area you just correct brightness in software, damn good idea.
Awesome work! Getting visualizations to look good on a low-res sphere is hard. In my experience, using an equidistant azimuthal projection works best for mapping. As others have said, oversample the image by projecting the geodesic geometry onto a larger plane such that each output pixel covers several input ones, then average them for the output. For pattens, I've had the best luck with a 2d fluid sim (SMA Fluid is a good lib). A 3d perlin noise run through a cosine function then mapped to a color palette works well too. That's what we do on the Radiance Dome, which is basically a 40' version of this. Love the tiny one!
I was thinking about this just the other day: A little tiny desktop Vegas Sphere. I think I saw a video where they showed a smaller sphere that the Vegas Sphere team uses to test designs. It's still very large, but smaller than the real one, of course, and indoors. Anyway, you satisfied my curiosity and of course revealed lack of a practical market for such a thing, because it is just too expensive to make. But I am super impressed with your efforts and can't wait to see what you do next. Thanks for sharing.
This is so cool! I love all the different functions you coded into the sphere, it made all the difference rather than just leaving it as a normal led ball.
Instead of mounting the LEDs to a Flexible PCB, mount them to the diffuser. Using rings, instead of triangles. You will be able to increase the density by making the rings smaller. Since, each ring is parallel, you don't have to worry about pixels being in different directions, or creases. At the very top you can use a circle with the initial 7 pixels in a star pattern.
i can not comprehend enough how difficult would it be to build this awesome project! Mechanical and Electronic side alone, how would you even manage mapping all the pixels into animation! great work!
An Amazing build, love the problem solving process, definitely triangles are the way to go, but the lights in a hexagonal arrangement while cool loses the resolution as an led is missing in the middle, if you double the size you could Fill these in?
maximizing pixel density is just picking the smallest LEDs you can. equidistance is not a concept in non-euclidean geometry because there are multiple straight paths you can take to any point. fibonacci sphere is about as close as you can get, though. there are pretty solved problems so its just the spherical display itself left to deal with since wrapping a flat surface around a curved surface is impossible, the closest you can get is just maximizing the cuts on the surface so there's more potential for curvature
Cool idea, but yes, costs too much if high pixel density is preferred/needed. :( I built something called the “POV LED Globe”. Mine is about 80cm? Diameter made of plexiglass/acrylic with a rotating axis in the middle. There are RGB LEDs on both sides (144 LEDs/m are used for each side.) One side is shifted a few millimeters, so I doubled the pixel density when spinning. In addition, the whole thing is in a vacuum so that there is no/hardly any air resistance and the background noise is also significantly better. The most expensive item in the whole project was the transparent ball at around €120? You can usually get two half-shells cheaply, but in the end they somehow don't look that great with the light refraction in the middle.
I literally had this idea the first time I took screens down to the touch interface but it was a full sphere. So cool to actually see it!!! Nice work bro!
Cool project as always! Maybe you can create a cheaper version of this with a more regular pixel layout by simply stacking regular PCBs that only have LEDs around the circular circumference. Or maybe create a bunch of really tiny triangular PCBs that can be tiled, including the connections, any solder them into a sphere.
Just thinking if you can divide the sphere into patches and then directly paste the leds with proper orientation Inside the sphere you can do the connections
@@javierbenimeli2004 Instead of putting the led itself on the dome, its better to have Led screen on the base. And then, "transfer" the light from each pixel to the dome with a fiber optic. Tedious? Yes. But is it better, also yes.
Nice for the sphere would making a flexbble pcb in concentrical circles, which has a small bridge connecting them work? The bridge can then fold under one of the circles, which will create a bump but as shown with the vid, the bump under the diffuser disappeared. The concentric circles then can be stuck down on a sphere and may help with density, the linearity of the led's and to remove the lines seen through the diffuser.
Great build. I probably would try to go the way of a tiny high res screen at the base and a projection to the inner surface of the sphere using optical elements.
@Carl try this a cellphone underneath and a curved lens to project in the dome. But it will be hard to find the correct lens. Another idea: fiber optics. Many of them. Make a flat panel with tiny holes where all fibers are connected, then attach it to the screen of the phone.. then the other end of the fibers you connect them to a 3d printed half sphere with many holes. aaaannd voilà you have a sphere display 😊😊
You are aware that would cost hundreds of thousands for the fiber optics idea? Military uses similar methods for their night vision goggles and they're suuper expensive
I was going to say the same. Max out the fibers possible. this will also result in a focused unblured imaged. Forget using LEDS the resolution will be to low. Good Luck.
Wonder if it is possible to let a LED rotor run under the sphere. Two or three columns with a tiny offset to eachother should be enogh to close the gaps between the leds. And maybe it's another usecase for the high rpm motor :)
You should work on your audio - it is annoying as hell. Everytime you start a sentence the volume goes up. Combined with too little time between the cuts (-> merging of the two sentences where none should be) it is extremly distracting; if you speed up the video it gets even worse.
Great job. I think HD laser projecting through a phone fish eye lens onto the interior of a spherical glass light cover would be the best option to increase fidelity in the future.
as noted below, i think you could get a result closer to what you want with a few flexible screens (could be LCD w/backlight using ~1-4 LEDs inside the 7/8ths sphere), perhaps on a clear plastic spherical mount (could be webbed mount instead of solid), and maybe a little beefier controller (RPi 4 to start). the most difficult thing is to find flexible screens that can be patterned so to be mounted in the spherical shape... or increase the size of the sphere so that you can use an array of 1.69 inch LCD displays (available on amazon for $15 each). also, thinner and less diffuse outer shell (that might also make your current design look better).
incredible work! I want to offer you 2 different approaches: 1.) using fiber optics to convey light from more conveniently placed LED's to the curved surface. 2.) Use a flat LCD screen at the bottom and place a lens array on top to convey the reflection to a spherical panel. this would require some amazing image translation algorithms but ultimately bypasses all the issues you have encountered if it succeeds. Subscribed to you now. Good Luck
I might, just might, be the 1000th comment on this video. Nothing much, just wanted to flex and also say that this video is well-made, and the amount of passion and patience needed here is massive, and the fact that you even got a good result at all is amazing. Greetings from Greece.
What a great idea! I've long dreamed of a spherical display with a retina level of resolution. I'm not sure such a thing would be at all practical, but as a vehicle for an AI assistant I can imagine such a thing would take on a life of its own.
Looks great! But have you thought about putting the resistors to the inside of the sphere.. so you would be able to place additional led on the outside
Amazing engineering. Not sure if any one has suggested it but possibly changing the solder mask from black to white might mitigate the board visibility through the diffused dome. Good luck. Keep on keeping on.
Brilliant! Love your struggles with trouble shooting, and overcoming them. Possibly buying the LEDs in bulk would bring down the relative cost, but then you'd need to sell some.
This is awesome! I wonder if its possible to use a flexible LCD screen wrapped around the globe with LEDs behind? Abit like an SLA 3D printer, or one of those LCD Projectors?
Great deal of work, so close to being able to replicate the Vegas Sphere. I was wondering what about stacked color MicroLEDs? Would they work any better and can you make the substreight transparent? With side mounted LED profile the surface area could be cut in half and possibly allow for more LEDs driving sharper detail? Just a thought. I know nothing of much about what is available. So maybe, right?
I wonder if using a flat display and some optics to project it onto the curved surface would work (not sure what those optics would look like though since I haven't done much in that field).
This is brilliant. I was wondering whether we would see that eye! Good on you. It makes me want to build stuff. RUclips videos with people building stuff are so interesting!
How about using concentric circles of leds with decreasing diameters stacked on top of one another instead of the godisic sphere? Wouldn't it solve the issue with density and also with the uneven distribution?
Cool project! You could add a black transparent and maybe a clear (not diffused) cover it - you can still generate enough light but the colors will be much more vibrant.
Very interesting. As a commercial product scaling it up to tent or dome sized structures might be viable for event companies. However they do this already with led curtains. I think the best way to achieve 3d pov displays at smaller scales is with a centrifugal drive with the leds on wires linked to the drive shaft. Rather than one arm use many to reduce weight related stress.
this is awesome! do they make smaller LEDs? if you could find a company who makes nano leds would make the resolution way higher... the problem is where...
Las Vegas sphere for ants. Great build!
Thanks James! (Big fan of your work!)
E
Whoa hacksmith
Hello hacksmith, can I have a used screwdriver?
hello there
I love how you mentioned the price & cost of such a build so as I a viewer can relate.... its fundamental info that so many forgets or simply wont incl..
so kudos for that.. impressive build..
you're developing their best souvenir
Actually, lobby art...
How cool would that be if it could display whats on the real sphere in real time!? I would buy one instantly.
@@PanicAK Would need Wi-Fi/Bluetooth
@@PanicAK And with the idea of being able to show the advert in more places to a captive audience it may even be able to subsidise the cost somewhat.
more like a chinese knock off souvenir... 😁
Your pain, our gain. Thanks for hanging in there, through setbacks. You are smart AND humorous with the shake / vomit bit. I hope you are rewarded for your efforts.
Great project.
Sharing some ideas:
1) white circuit board to improve reflectance
2) thinner diffuse
3) modeling to higher virtual pixel count then blending based on proximity to physical pixels - for smoother animation and illusion of higher resolution.
4) pre crease the triangle edges to achieve s cleans edge without stress on glue.
5) print gradient channel for cable foldback to guide cable inward at gradual angle and reduce stress.
I look forward to future iterations.
You dont want reflectivity it would only blur it even further from scattered light
who are you my guy :)
Also why do we have to paste it on top of a sphere? Instead print a geodesic frame and paste on top of that
@@MegaDRKSTR he eventually got to that. you can see it at 4:51
I think redesigning the board to have the cable at the bottom and not "in the middle" would make it easier to hide.
There are two ways to improve this. First for the current build use a double diffusion. I wrote an article on Instructables once explaining that technique. Could go deep into the math but basically measure the distance between the LEDs, put a sphere with a material that has half the diffusion value of your outer sphere at a distance that is half the distance between the LEDs, then put the outer diffuser over it at a distance that equals distance between LEDs. Would get rid of the artifacts from seams and also makes it much more display like.
Second idea would be using fiber optics. It would need a flat base that is larger then the sphere to house the LEDs but can then send the light from the LEDs to the diffuser sphere with varying length fiber optic cables. Could increase the pixel density a lot cause you could basically make it as dense as the fibers are thick. Just limited by the amount of LEDs you can fit in the base and amount of LEDs you are willing to put in. But can do even spacing better and just needs a bit of math to transform the flat image onto spherical locations.
You’re only at 10% brightness, that gave me an idea: use a flat (circular?) lcd, shine a light from below, and use a lens to project the image on the sphere? That would give you decent resolution, lower the price, and maybe be easier to build.
i wonder if there's any particular square tiling that would work best to estimate a cube. how custom can you go with LCD size?
Cool but might be a nightmare to map the image
I was thinking it might be a mini dlp projektor with a lense. Thst would probobly work. It wouldnt even need to be that high of a resolution.
Maybe combine an lcd with glas fibre. Superglue glas fibers on top of an LCD and arrange the other ends in a 3D printed sphere. Then put the difusor on top.
@@CarlBugeja solving a bit of hard math once is cheaper than hardware :P
also what about cheap square flexible OLED panels, with the corners tucked into the sphere to make the triangles?
I recently printed a moon that is illuminated from the inside with one light. Your video gave me the idea of displaying the current moon phase by using spherical LED strips + ESP and some programming.
YES a larger one with more pixels is worth pursuing. A sponsor (or Patreon) needs to cover your LEDs, but the result will be worth it.
YESSSSSSSs
@Dr.Kay_R look up the difference between OLED and an LED. It’s quite cool.
+1
I vote for a basketball size maybe slightly bigger
why does he not just take the glass off a phone screen and use that and bend the leds around a ball at least then it will have a decent image.
One aspect of your video I rather liked was that you weren't at all afraid of sharing your mistakes. Thank you kindly, it was a really interesting video!
Very impressive indeed. There's a LOT of complexity in software, pixel animation and mapping that you didn't even touch upon.
Thanks! Mapping felt to boring to explain in a video
@@CarlBugejamight be boring for you, but very interesting for us 🧐
@@CarlBugeja
You can always tell the viewer, that the video is over and that you touch upon some math topics such as mappings.
No problem for the normal viewer and some people may enjoy it as well.
Nice project! Would you be willing to elaborate on the pixel mapping/animation software you used?
Yeah please explain the mapping process and how you figured out a way to create a library to map any image into the way pixels are arranged.. also can you make it open source?
Very nicely done! As someone who has been to The Sphere and experienced it firsthand, I can say your little mini-Sphere is a wonderful reproduction. Seeing The Sphere in person was absolutely incredible. I sincerely hope you get the chance to experience it yourself. I have no doubt you'll be absolutely blown away by it.
The thing I really appreciate about Carl is just how much joy he's clearly getting out of these explorations. I love seeing people visibly stimulated by what they're doing. It's infectious!
I love the animation you made at 5:30
The randomness between white and colors blurred by the diffuser is great!
Forget the LEDs, try an OLED/LCD screen on the bottom and some sort of lens or crystal on top to project the image on the sphere.
Yep, work smart not hard
Was my first thought too, although I was thinking of how to splice together flexible oled displays, maybe with overlap. Now I like your idea more.
Awesome idea. The optics might be challenging, to project a 2D image onto a 3D sphere. Could it be a fisheye lens but used in reverse ? So that it projects the image on the sphere ? It's interesting :).
ruclips.net/video/0KPtqXAZ66g/видео.html
Why not go a step further and use a projector? Something like the TI DLPDLCR2000EVM would work great and be fairly cheap too!
Would it be feasible to use a dense bundle of optic fibers? Like, connecting them to the inside panels of the geodesic dome and running bundles to rgb lights.
It would take a long time to make, but you could reduce the size of the triangles more, eliminating the gaps between the panels and the shell (which causes a lot of blur).
Amazing work Carl! There are less expensive 1mm addressable RGB LEDs available. For example XINGLIGHT XL-1010RGBC-WS2812B (available on LCSC) for $0.0312 in quantities of 8,000 or more. I've used them in several of my builds, and they also seem to have a much lower quiescent current draw than others I've used.
that is much better, are they of comparable size? i really hope he can get his tweezers on these and make this a lot better
@@xymaryai8283 he said they are 1mm
@@xymaryai8283 Maybe his own DIY CNC pick&place mini-machine; would be a nice side project.
great build, loved how you mentioned the price it just puts the las vegas 'sphere' $2.3bil price tag into better perspective for most people. It is truly a great technological achievement; you should be proud you were able to scale it down so well.
A few ideas:
- You might be able to source small triangular LED screens, I imagine that even if these do exist integration and cost would be terrible
- Make use of an LED screen underneath an object that directs the light to maintain a perpendicular path to the screen, cutting it into the shape of a sphere. Then cover that in a diffusive surface. Basically, the guides act as glass fibres that direct the light from the screen to the surface, look up "Photonic Crystals periodic in two directions". I imagine sourcing that would be near impossible but there may be alternative methods for achieving a similar effect: high-resolution 3D printed structure coated in a highly reflective material,
I had the same idea, scoured the internet for some small triangle or hex led screens, nothing :( Only stuff on backorder with shady documentation
Smart idea, like some very danse 4k mobile screen, and to get the right diffuse to the parts that get projected in more area you just correct brightness in software, damn good idea.
Awesome work! Getting visualizations to look good on a low-res sphere is hard.
In my experience, using an equidistant azimuthal projection works best for mapping. As others have said, oversample the image by projecting the geodesic geometry onto a larger plane such that each output pixel covers several input ones, then average them for the output.
For pattens, I've had the best luck with a 2d fluid sim (SMA Fluid is a good lib). A 3d perlin noise run through a cosine function then mapped to a color palette works well too.
That's what we do on the Radiance Dome, which is basically a 40' version of this. Love the tiny one!
I really appreciate how you show the mistakes made in the process and how you tackle them. That's really educational. Keep it up!
I was thinking about this just the other day: A little tiny desktop Vegas Sphere. I think I saw a video where they showed a smaller sphere that the Vegas Sphere team uses to test designs. It's still very large, but smaller than the real one, of course, and indoors. Anyway, you satisfied my curiosity and of course revealed lack of a practical market for such a thing, because it is just too expensive to make. But I am super impressed with your efforts and can't wait to see what you do next. Thanks for sharing.
duuuuude, that's hardcore dedication!
As usual, impressed by the ideas you have & the actual final results u come to.
This is so cool! I love all the different functions you coded into the sphere, it made all the difference rather than just leaving it as a normal led ball.
Imagine that with a round OLED screen...
@@Paradoxical124 by using multiple triangular screens its possible to
@@tecnogadget2 yeah but that would be astronomical expensive
And a lense
I want one. Someone figure out how to do it!
That's what I was thinking, but that'd be soo expensive to develop
Instead of mounting the LEDs to a Flexible PCB, mount them to the diffuser. Using rings, instead of triangles. You will be able to increase the density by making the rings smaller. Since, each ring is parallel, you don't have to worry about pixels being in different directions, or creases. At the very top you can use a circle with the initial 7 pixels in a star pattern.
6:43 a random factory in China can make it for less than $10
Wow - great project. Very ambitious!
Your projects are never dissapointing, every single one feels like a documentary or a conference paper, something i can learn from everytime.
i can not comprehend enough how difficult would it be to build this awesome project! Mechanical and Electronic side alone, how would you even manage mapping all the pixels into animation! great work!
An Amazing build, love the problem solving process, definitely triangles are the way to go, but the lights in a hexagonal arrangement while cool loses the resolution as an led is missing in the middle, if you double the size you could Fill these in?
I drive by it every day on my way to work, still pretty neat to look at. Even when it's covered in video ADS lol
id love to see a bigger version of this that takes into account a lot of the ideas people have in the comment section. this is super cool
A mini projector inside the dome?
thats a best idea
He's mister flexible pcb, it would ruin his entire purpose if he solved it the right way 😅
Is there a projector with enough field of vision to cover such a sphere?
I don't think it have a wide enough view
what about some sort of resin printed prism
That was so much fun to watch! I love how you break down the cost at the end which is a big part of making a decision for pursuing any idea further!
maximizing pixel density is just picking the smallest LEDs you can. equidistance is not a concept in non-euclidean geometry because there are multiple straight paths you can take to any point. fibonacci sphere is about as close as you can get, though. there are pretty solved problems so its just the spherical display itself left to deal with
since wrapping a flat surface around a curved surface is impossible, the closest you can get is just maximizing the cuts on the surface so there's more potential for curvature
Can wr get it as a 6" crystal ball? (Include a base for the ball to hide the inner workings)
Super awesome project. thanks for sharing
Omg man thank you, I was looking for a specific alphanumeric on those super-small addressables. There are so many out there it seems like.
Cool idea, but yes, costs too much if high pixel density is preferred/needed. :(
I built something called the “POV LED Globe”.
Mine is about 80cm? Diameter made of plexiglass/acrylic with a rotating axis in the middle. There are RGB LEDs on both sides (144 LEDs/m are used for each side.)
One side is shifted a few millimeters, so I doubled the pixel density when spinning.
In addition, the whole thing is in a vacuum so that there is no/hardly any air resistance and the background noise is also significantly better. The most expensive item in the whole project was the transparent ball at around €120? You can usually get two half-shells cheaply, but in the end they somehow don't look that great with the light refraction in the middle.
I literally had this idea the first time I took screens down to the touch interface but it was a full sphere. So cool to actually see it!!! Nice work bro!
What a cute Kolobok you made
creative solution! i wonder if it would be easier to use led strips of ~2mm to make a vertically ascending array of pixels?
Cool project as always! Maybe you can create a cheaper version of this with a more regular pixel layout by simply stacking regular PCBs that only have LEDs around the circular circumference. Or maybe create a bunch of really tiny triangular PCBs that can be tiled, including the connections, any solder them into a sphere.
Im impressed. I wish you can come here to Las Vegas to see the Sphere from the inside of it as well as see it from the outside.
Amazing! RUclips algorithm sent me here. New subscriber!
Just thinking if you can divide the sphere into patches and then directly paste the leds with proper orientation
Inside the sphere you can do the connections
Bro completely forgot about using fiberoptics.
How would you even use fiber optica there? Nonsense
@@javierbenimeli2004 Instead of putting the led itself on the dome, its better to have Led screen on the base. And then, "transfer" the light from each pixel to the dome with a fiber optic. Tedious? Yes. But is it better, also yes.
Ok that's clever as hell
But the surface of the sphere will be bigger than led screen underneath. you would have gaps of dead pixels @@rizkyprima2649
Beautiful. Maybe you could address assembly issues by adding small pins or thin "walls" that can align your pcb into the support?
Nice
for the sphere would making a flexbble pcb in concentrical circles, which has a small bridge connecting them work?
The bridge can then fold under one of the circles, which will create a bump but as shown with the vid, the bump under the diffuser disappeared.
The concentric circles then can be stuck down on a sphere and may help with density, the linearity of the led's and to remove the lines seen through the diffuser.
Great build. I probably would try to go the way of a tiny high res screen at the base and a projection to the inner surface of the sphere using optical elements.
@Carl try this a cellphone underneath and a curved lens to project in the dome.
But it will be hard to find the correct lens.
Another idea: fiber optics. Many of them. Make a flat panel with tiny holes where all fibers are connected, then attach it to the screen of the phone.. then the other end of the fibers you connect them to a 3d printed half sphere with many holes. aaaannd voilà you have a sphere display 😊😊
You are aware that would cost hundreds of thousands for the fiber optics idea? Military uses similar methods for their night vision goggles and they're suuper expensive
50pcs-500pcs 1mm* 2m PMMA Plastic Fiber Optic Cable End Grow Led Light DIY Decor, £4.49
I was going to say the same. Max out the fibers possible. this will also result in a focused unblured imaged. Forget using LEDS the resolution will be to low. Good Luck.
in couple of years this thing will be sold as souvenir for 5 bucks probably , great job you earned yourself new subscribers
use plastic oled
Even more than the insane routing, the image mapping to the sphere is genius :D
1:55 totally basic my brain💀
Wonder if it is possible to let a LED rotor run under the sphere. Two or three columns with a tiny offset to eachother should be enogh to close the gaps between the leds. And maybe it's another usecase for the high rpm motor :)
⚠Epilepsy warning from 0:34 at 0:44 ! ⚠
Honestly amazing that cool patterns and animations can be shown at this scale.
no epilepsy warning for you
Lol, smh. You all are not easy on youtube these days
@@AK2I47 i mean more as in SEIZE
@@Nobody5555- LoL
This made me smile. What a joyful creation!
You should work on your audio - it is annoying as hell. Everytime you start a sentence the volume goes up. Combined with too little time between the cuts (-> merging of the two sentences where none should be) it is extremly distracting; if you speed up the video it gets even worse.
Who hurt you?
@@WakeMeWhen_WinterEndsNo one, he was just criticizing the creator.
@@WakeMeWhen_WinterEndswhy are you protecting him from any criticism lol
wompwomp
Great job. I think HD laser projecting through a phone fish eye lens onto the interior of a spherical glass light cover would be the best option to increase fidelity in the future.
What a lovely thing! The fact that it wont be mass produced anytime soon makes it a gem.CHeers!
as noted below, i think you could get a result closer to what you want with a few flexible screens (could be LCD w/backlight using ~1-4 LEDs inside the 7/8ths sphere), perhaps on a clear plastic spherical mount (could be webbed mount instead of solid), and maybe a little beefier controller (RPi 4 to start). the most difficult thing is to find flexible screens that can be patterned so to be mounted in the spherical shape... or increase the size of the sphere so that you can use an array of 1.69 inch LCD displays (available on amazon for $15 each). also, thinner and less diffuse outer shell (that might also make your current design look better).
A truly scientific engineering process. Well done!
incredible work! I want to offer you 2 different approaches: 1.) using fiber optics to convey light from more conveniently placed LED's to the curved surface. 2.) Use a flat LCD screen at the bottom and place a lens array on top to convey the reflection to a spherical panel. this would require some amazing image translation algorithms but ultimately bypasses all the issues you have encountered if it succeeds. Subscribed to you now. Good Luck
Your ideas and designs are just amazing. It's always a pleasure to watch!
You're always doing super cool projects, I love to see it.
Shame on the cost because a football sized one would be so cool.
I might, just might, be the 1000th comment on this video. Nothing much, just wanted to flex and also say that this video is well-made, and the amount of passion and patience needed here is massive, and the fact that you even got a good result at all is amazing. Greetings from Greece.
What a great idea! I've long dreamed of a spherical display with a retina level of resolution. I'm not sure such a thing would be at all practical, but as a vehicle for an AI assistant I can imagine such a thing would take on a life of its own.
Nice work! I wonder if there would be any way to do this with flexible oled sceeens to improve the resolution?
Looks great!
But have you thought about putting the resistors to the inside of the sphere.. so you would be able to place additional led on the outside
The quality of this video is awesome. Great engineering!
Definitely worth pursuing. I have a project that would use similar tech and would like to see more info your expertise would provide.
Amazing engineering. Not sure if any one has suggested it but possibly changing the solder mask from black to white might mitigate the board visibility through the diffused dome.
Good luck. Keep on keeping on.
Pretty Cool! Whole family just visited Sphere last spring break.
He has sparked a new passion in me. This looks so cool!
this channel will grow up because the explanation its so detail . Great job
Brilliant! Love your struggles with trouble shooting, and overcoming them. Possibly buying the LEDs in bulk would bring down the relative cost, but then you'd need to sell some.
Can you get flexible OLED in custom patterns? Much higher pixel density for the papercraft.
Kudos to your hard and excellent work! I wonder if a micro-projector with a "180" degree lens would do the job
This is awesome! I wonder if its possible to use a flexible LCD screen wrapped around the globe with LEDs behind? Abit like an SLA 3D printer, or one of those LCD Projectors?
I’m not sure whether it would be possibly but would it be possible to get a small projector and shine it up at the white diffuser
could you try it by salvaging an oled screen off of a mobile? With that you should achieve that pixel density values
Great deal of work, so close to being able to replicate the Vegas Sphere. I was wondering what about stacked color MicroLEDs? Would they work any better and can you make the substreight transparent? With side mounted LED profile the surface area could be cut in half and possibly allow for more LEDs driving sharper detail? Just a thought. I know nothing of much about what is available. So maybe, right?
I wonder if using a flat display and some optics to project it onto the curved surface would work (not sure what those optics would look like though since I haven't done much in that field).
This is brilliant. I was wondering whether we would see that eye! Good on you. It makes me want to build stuff. RUclips videos with people building stuff are so interesting!
really cool, i might build a similar sphere but a bit bigger and with more pixels. awesome video!
what if you try a very dense flat display and optic fiber cables?
How about using concentric circles of leds with decreasing diameters stacked on top of one another instead of the godisic sphere? Wouldn't it solve the issue with density and also with the uneven distribution?
Cool project! You could add a black transparent and maybe a clear (not diffused) cover it - you can still generate enough light but the colors will be much more vibrant.
Why not have the foundation match the shape of the pcb after folding? Surely that would help it stick
I have done something like this with a pico projector and a fisheye lens projected into a translucent globe. Worked pretty well.
Wow I love seeing all the troubleshooting you did. The shaking and vomit reaction on the emoji was funny
Very interesting. As a commercial product scaling it up to tent or dome sized structures might be viable for event companies. However they do this already with led curtains. I think the best way to achieve 3d pov displays at smaller scales is with a centrifugal drive with the leds on wires linked to the drive shaft. Rather than one arm use many to reduce weight related stress.
Tiny vegas domes! A slightly larger high def spherical bed side lamp sounds like something I need.
For mounting the boards and keeping them stuck down could you maybe vacuum form clear plastic over it to both pull them down and "trap" them in place?
this is awesome! do they make smaller LEDs? if you could find a company who makes nano leds would make the resolution way higher... the problem is where...
Carl You are a genius of the highest level!