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Tiny volumetric display
- s0rce 3y agoAre micro LED panels commercially available yet? Seems perfect for something like this.
- imdsm 3y agoI love this. Must be a lot of fun to work on it!
- twoodfin 3y agoOne of those brilliant ideas that seems obvious in retrospect. Given that the results are so compelling even when pulled together by hand out of relatively primitive discrete components, I’m wondering why we shouldn’t expect to see full color, high resolution versions from every random 7-letter drop shipper on Amazon next Christmas?
- crazygringo 3y agoIt's not a new idea -- they're called swept-volume volumetric displays, and they've been around for a long time [1]. But they're mostly kind of just toys. When you're limited to transparent glowing surfaces and you can't even touch them, there's really not a whole ton you can do. You can see a much larger non-spinning version made of LEDs suspended on cables [2] and it's very cool, but the novelty kind of wears off after a while, and you realize it's not the kind of display you're going to use for anything productive. If you actually want real 3D visualization that can render anything at high quality and that you can interact with, it seems like VR/AR headsets are the way. (Though there are also the new 3D monitors that don't require glasses, but not a lot of people have gotten to see those in person yet.) Maybe there's some kind of toy you could make with them to sell on Amazon though? Not really sure if there's a "killer app" for these things. [1] https://en.wikipedia.org/wiki/Volumetric_display#Swept-volume_display https://en.wikipedia.org/wiki/Volumetric_display#Swept-volum... [2] https://www.ledpulse.com/ https://www.ledpulse.com/
- djmips 3y agoFor [2] it does not look swept. Appears static.
- jessriedel 3y agoYea, specifically it looks like the LEDs suspended on threads and statically fill the volume.
- 8n4vidtmkvmk 3y agoThey said as much.
- noduerme 3y agoThe killer app is clearly sending messages via R2-D2.
- crazygringo 3y agoThis... is true. It would actually make a fantastic Princess Leia message toy!
- butlike 3y ago"You have an incoming message request from: SALES TEAM" "Help me, dev team, you're my only hope."
- drcode 3y agoThe innovation is spinning the entire computer, instead of just the display, reducing complexity
- dekhn 3y agoIt seems more likely that a mechanical engineer would end up using a slip ring, so the computer doesn't need to spin.
- 3y ago
- m3kw9 3y agofor a 32 inch display, you gonna get a motor that may need to spin like a mofo in an area of pi*32^2.
- nine_k 3y agoThe display needs to be pretty strong physically.
- aj7 3y agoI’ve seen 1kW Chinese closed loop servomotors, with driver for < $500. And you don’t care about acceleration, just continuous torque.
- mckravchyk 3y agoI wonder if you could put small displays in an array and somehow synchronize them to act as one big display.
- tromp 3y agoThe centering issue could be solved by putting two led boards on top, back to back.Perhaps one board could shift the leds over by half to create an interlacing effect while doubling resolution.
- swayvil 3y agoThere's gotta be some way to replace the rack-of-leds-spinner with something lighter. Mirrors? Acrylic light pipe matrix?
- lstodd 3y agoI wonder if it would be simpler to just spin two phone screens glued back-to-back. You get higher resolution in about the same weight. Bandwidth would be a problem though.
- mistercow 3y agoThe fundamental problem is refresh rate. If you have two phones that refresh at 240Hz (the fastest I know of), and you want your frame rate to be 12 Hz, you’ll still only be getting 20 refreshes per 180 degree rotation. So your angular resolution will only be 9 degrees. Assuming you use portrait mode, that will make your outermost voxels ~5 mm arcs. And even there, 12 Hz is probably pushing it in terms of flicker.
- lstodd 3y agoYeah, well, that's not going to work. Interesting problem all the same. For a 1 meter diameter and height cylinder at 60Hz voxel refresh and say 1mm resolution at the edge one would need the plane rotating at obviously 3600 rpm, and edge pixels switching at about 380KHz. Since rgb is nice to have that's 10 gigabit for a somewhat coarse display. Nothing impossible, but not a DIY territory yet. I think one'd want the LEDs either on the receding or the advancing halves of the plate, depending on which is best for the cooling -- not all on the same side or on both -- that would be just a waste. Or even just on one half of the plate, the other being just a countermass. This way cuts the bandwidth in two.
- Tenemo 3y agoI would pay $200+ for a bigger (50x50?), rugged, RGB version of this that you can make to display different images without coding.
- leetbulb 3y agoIt's not volumetric, but it's still really cool and may fit your use case https://spinprojector.com/ https://spinprojector.com/
- alright2565 3y agoOnly place I've seen these before is at the Atlanta airport, where they use them to show a 3d-animated sign to remind you not to bring your gun through the security checkpoint.
- wongarsu 3y agoI sometimes see them at trade fairs as an eye catcher. With the right background you can get a pretty convincing 3d effect out of them despite the "display" only being 2d
- crashmat 3y agoI saw some poi that worked like that. The performer did a very good show with them
- swayvil 3y agoThis is tight. Presently working on a list of uses. Need one the size of a 5gal bucket. As it is, I'd stick one on my gimcrack cabinet.
- ilaksh 3y agohttps://youtu.be/CCuybyAO8fs?si=xBLYy5zKEEcloqeA https://youtu.be/CCuybyAO8fs?si=xBLYy5zKEEcloqeA
- swayvil 3y agoIt's so smooth!
- leetbulb 3y agoWow this one is cool. First time I've seen it. Reciprocating screen? How the hell do they get it to move that quickly? That is very high energy. Edit found another video showing it starting up https://www.youtube.com/watch?v=SMz4bJA47Js https://www.youtube.com/watch?v=SMz4bJA47Js Now that I think about it, I suppose if you match the resonate frequency of the display component and its carrier it should be fairly efficient. Really cool stuff.
- eichin 3y agoOther videos say that the bubble is just to protect the screen because (unsurprisingly, I would) people try to touch it - so it's not evacuated; doesn't that mean it's going to be a fairly loud 30hz speaker, effectively? (or is it just not well coupled because "speakers need to actually be designed" and it's not that bad in practice?)
- ilaksh 3y agohttps://youtu.be/mxyw6LkAtiQ?si=xK0x8-rEoG0KvzPp https://youtu.be/mxyw6LkAtiQ?si=xK0x8-rEoG0KvzPp
- fortran77 3y agoHaving electronic candles that display a real 3D image of a burning flame seems like a great use for me! People would love these for outdoor "candle" displays.
- wvh 3y agoCreative. I probably have the persistence and interest to pull something like this off, but I lack the fantasy to come up with such cool projects. Luckily there's the internet to see what impressive stuff people come up with.
- mistercow 3y agoTom 7 mentioned a thing in one of his videos, which is to keep a list, and write down every idea when you think of it, regardless of how stupid it is. Winnowing is for later. That way, when you have the energy to work on a project, you don’t have to waste it on coming up with an idea. It really makes a huge difference in what you can get done with side projects. You probably have more interesting ideas than you think you do, but if having them doesn’t line up with having the time and energy to act on them (or even to just expand on them), they’ll fade away.
- gregsadetsky 3y ago100%. And the "weird" (not weird -- useful!) thing that happens with time is that once you start writing down ideas (and you should definitely note pretty much all of them - regardless of how good/bad they seem), your mind gets into "having more ideas" mode... You sort of get a second wind - or more accurately, you start developing your "what if" muscle. And the stronger it gets, the more "what if"s you'll have. And some of those will 100% be really really good (whatever good means to you). It's also ok to have really """bad""" ideas. They're always funny to read back (a month/year) later. They're fun to share with friends and strangers. And sometimes they lead to good ones as you think about what made you think the bad ones were bad in the first place.
- djmips 3y agoBut when you write it down - please include more than two or three words - because it's hillarious to come back to a list when a lot of time has past to see an idea written simply as 'The pope of physics' <- from my own list. I have no idea what I was thinking...
- BenjiWiebe 3y ago
- Retr0id 3y agoIt would be hard to manufacture at scale, but what if the LEDs were mid-mounted into a slot cut into the PCB?
- atticora 3y agoOr suspended in a wire net.
- alright2565 3y agonot at all hard to do, they make "reverse mount" leds, where the diode faces into the PCB: https://www.digikey.com/en/products/detail/sunled/XZMYK55W-3RT/12817595 https://www.digikey.com/en/products/detail/sunled/XZMYK55W-3... compatible with the exact same pick-and-place machines, you just need to drill a hole in the PCB
- pcdoodle 3y agoThat is cool. The code is lean too, seems like one could learn a lot by trying to do this themselves.
- dsalzman 3y agoNice example of persistence of vision display. You can use large stick versions of this to “paint” images by waving them around.
- K0balt 3y agoIt seems like this might Work even better with a two sided OLED screen (2 screens back to back) rather than led array, for better resolution? I think that are sufficiently wide angle, at least the monochrome ones.
- sporeray 3y agoI think OLEDs might have a refresh rate issue. The nice thing about LEDs is that you can drive them at a very high refresh rate.
- buildbot 3y agoDon’t oled displays support pretty high refresh rates? And also have way lower GtG latency?
- throwawayben 3y agowith this kind of spinning display you'd need to multiply the frame rate you want by the angular resolution you want. So if you're happy with only 20 different angular views and only a 20fps refresh rate of the 3d display then that's 400fps required of the flat display
- K0balt 3y agoOof. I think that might tax the typical driver ASICS that are used on those.
- FredPret 3y agoThe rest of the site is filled with dozens of similar very cool projects
- francisduvivier 3y agoPretty cool, but the bigger the display, the more that refresh rate becomes an issue. Say you can refresh the outer pixels on the horizonal axis at 100 fps. Then if you want to have 50 pixels on the outer half circle, then you can change them at 2fps.
- kragen 3y agoconventional leds can be driven at several megahertz pretty easily. the white type uses a yellow phosphor that fades slowly but they can still do kilohertz
- falker 3y agoThe RP2040 tiny is a Nintendo Switch modchip in disguise (47 ohm resistors on 3 specific pins).
- bobsmooth 3y agoUsing blender to generate the frames is really clever.
- 55555 3y agoThis would look better with the LEDs on a transparent PCB, right?
- bee_rider 3y agoI bet you could to it with those little fiber-optic wires. Not the fancy telecommunications ones, the cheap stuff they use to make decorations. I wonder how they respond to being dunked in epoxy.
- blincoln 3y agoLEDs connected directly by rigid wires (no PCB at all), then encased in resin might be worth considering too.
- tasty_freeze 3y agoholy hell is this guy productive. it is worth scrolling through the various one-off projects he has completed and documented: https://mitxela.com/projects https://mitxela.com/projects
- deleted 3y ago[deleted]
- fallat 3y agoI thought so too but look at the dates and the scope of the projects. They're just good at managing their time :) I probably have just as many projects accumulated over the years.
- fritzo 3y agomanaging time, and ensuring every bit of work is showcased on a single platform, rather than scattered across many public and proprietary venues
- DesiLurker 3y ago.
- davidw 3y agoI feel like a bit of an incompetent after looking through all that.
- jacquesm 3y agoJust a catalogue of all the skills on display is already the stuff of a couple of lifetimes.
- lordwiz 3y agoLooks Pretty cool, Interesting how blender was integrated into such workflows for animation in hardware
- namuol 3y ago(Great YouTube channel if you’re into this sort of thing!) I wonder if a cheap oled display could be updated fast enough to achieve a much higher resolution. It might work but could look worse since the space between radial slices would be much larger than the pitch of the pixels, most likely.
- skibz 3y agoI love projects like this that exploit the POV phenomenon. Here's another cool one I found a while ago: https://www.youtube.com/watch?v=wM_Byrv9iBI https://www.youtube.com/watch?v=wM_Byrv9iBI
- Solvency 3y agoOk I just went down the rabbit hole of this guys projects over the last decade and I am now thoroughly impressed and utterly depressed that I'll never have as much free time as he does.
- djmips 3y agoFree time is an excuse for most people - I'm not calling you out because I don't know you but most people spend a lot of time on YouTube - Hn - Watching TV etc and they could be working on a cool project instead.
- Solvency 3y agoWatching TV? YouTube? Sounds like your peer group is biasing you. How about struggling to work from home for 8 hours a day with two kids with zero familial support, an endless array of bills, and every possible life obstacle coming your way 24/7?
- djmips 3y agoI wasn't calling you out. I don't know you. (look what I wrote) - best of luck in your situation!
- deleted 3y ago[deleted]
- garaetjjte 3y agoHe even has entry on this topic: https://mitxela.com/rants https://mitxela.com/rants (scroll down to "Spare Time and Hard Work")
- julianpye 3y agoHis work is even more inspirational after reading this rant, as he describes the therapeutic aspect of his projects and his base emotions. Still, I can't help but excuse my inferior output by admiring his incredible fine motor skills and pre-existing expertise in electronics.
- blincoln 3y agoThis is a neat project. With such a low resolution, am I wrong in thinking that the flame simulation could be done in real time on-chip using a cellular automata algorithm? It would still be nice to support pre-rendered video for other purposes, of course.
- merelysounds 3y agoI’d prefer this kind of spatial computing, I like it more than AR/VR – especially that this relies more on human sensory input, as opposed to working against it. E.g. no need to simulate head tracking.
- brilee 3y agogeohot built one of these in high school https://www.forbes.com/forbes/2007/0723/060.html?sh=3c183bcb4aa7#:~:text=some%20real%20ammunition.-,George%20Hotz,-is%20a%20teen https://www.forbes.com/forbes/2007/0723/060.html?sh=3c183bcb...
- deleted 3y ago[deleted]
- IAmGraydon 3y agoThis is so awesome.
- d_tr 3y agoAnother recently posted cool volumetric display project which did not receive much attention: https://news.ycombinator.com/item?id=38406824 https://news.ycombinator.com/item?id=38406824
- sowbug 3y agoA couple ideas for improvement. If you have extra identical motors and disassemble two, you can fashion a rotating power transmission system from the brushes in two assemblies. You sacrifice two motors for each unit, but it's a perfect fit and very reliable (with a cap and rectifier), and you don't have to worry about batteries anymore. The rectifier also provides a signal that the assembly has completed a rotation, so you can maintain image stability based on actual position, rather than guessing how long a cycle is. Transmitting power via induction might work, but I was never able to deliver it efficiently enough, so to make it work I had to turn up the source voltage so high that I worried about fires. This advice comes from my 2001 Burning Man art project. A very sad early prototype is pictured here: https://github.com/sowbug/tqw/blob/master/photos/side.jpg https://github.com/sowbug/tqw/blob/master/photos/side.jpg. The final installation worked great.
- elcritch 3y agoThat is a pretty good idea! The brushes will last a long time. Luckily now the rise of wireless phone charging means you can get kits like [1] or [2]. It makes me wonder how different LIDAR vendors manage it. 1: https://www.adafruit.com/product/1407 https://www.adafruit.com/product/1407 2: https://www.adafruit.com/product/2162 https://www.adafruit.com/product/2162
- enva2712 3y agoIf the drive motor was asynchronous you could use the inductive windings on the rotor to power your rotating electronics, but the phase difference may get pretty extreme
- amelius 3y agoAnother idea: why not put a tiny TFT display on the motor? You can get cheap ones at aliexpress.
- wayvey 3y agoWould be cool to see how that would look like. Or even a transparent OLED or such.
- 3y ago
- intrasight 3y agoNo video? Or did I miss it?
- isuckatcoding 3y agoThis makes me wonder if anyone has tried to create the Las Vegas sphere on a smaller scale themselves because that would be awesome
- iamflimflam1 3y agoThis is very similar to how hologram fans work - all the electronics is in the spinning part. With the fans they often use wireless power transfer to drive the top board. https://youtu.be/bT716nyK0AY https://youtu.be/bT716nyK0AY
- derac 3y agoThat's so cool! It would be interesting to see how it would perform in a vacuum. I wonder how big you could feasibly make it with vacuum containment.
- jacquesm 3y agoSize is mostly about balance and engineering, if you cast the whole thing in resin you can spin it as fast as you want (or until the resin breaks apart).
- jacquesm 3y agoThis is a really neat little project. Make sure to check out the other ones, some of which have been featured on HN before: https://mitxela.com/projects/hardware https://mitxela.com/projects/hardware Personal favorite: the MIDI slide whistle.
- ge96 3y agooh yeah, I forgot about the HDMI to OLED display that was crazy
- strogonoff 3y agoThe headphone amp[0] project reminded me of the book Schiit Happened a little. [0] https://mitxela.com/projects/headphone_amps https://mitxela.com/projects/headphone_amps
- LAC-Tech 3y agoThat's beautiful. Nothing intelligent to add, just a very neat, clever and aesthetic project.
- papichulo4 3y agoHa, came here with similar feelings. Put it on a stick! Is what I thought… Could it be on a handle of sorts?
- sigil 3y agoMany years ago, someone did a similar holographic hack with a spinning hard drive motor, a piece of reflective plexiglass mounted upright on it, and a small projector. As the plexiglass carved out a cylinder, the projector sent a series of frames adjusted for each little slice of 3D space. [0] This gave me a wild idea: what if you could encode a low-resolution 3D video on the left channel of a stereo vinyl groove? [1] A special record player with a spinning plexiglass plate could then play holographic albums. The hologram would stay perfectly in sync with the music if you changed speeds or did turntable scratching. [0] If anyone can find a link to the original spinning hard drive hologram project please drop it! [1] I assume this wild idea isn't feasible given vinyl data rates?
- gs17 3y agoThere's a low tech version of the vinyl hologram: https://youtu.be/aEbAaL7fPl4 https://youtu.be/aEbAaL7fPl4
- sigil 3y agoDifferent but pretty cool idea!
- Someone 3y ago> assume this wild idea isn't feasible given vinyl data rates? Data rates go up if you spin the disk faster, and can get fast enough for 2D video. I don’t think it was vinyl, but https://en.wikipedia.org/wiki/Television_Electronic_Disc https://en.wikipedia.org/wiki/Television_Electronic_Disc: “Program information was stored in the form of ridges in the surface of a thin, flexible foil disc, which was claimed to be sufficiently robust to withstand being played 1,000 times. The main technological breakthrough was the vertical recording method that reduced the track pitch to 0.007 mm, and increased the rotation speed to 1,500 rpm, making it possible to record 130–150 grooves per millimeter, compared with the typical 10–13 grooves on an audio disc. This increased the available bandwidth from around 15 kHz to 3 MHz.”
- sigil 3y agoAmazing, first I've heard of this. Here's footage of someone playing a Television Electronic Disc: https://youtu.be/XkP4ZJnMVOs?si=QbT4EXrE1dpq-Rtz https://youtu.be/XkP4ZJnMVOs?si=QbT4EXrE1dpq-Rtz
- blkhawk 3y agoanybody know if it would have been better to put half the LEDs on each side of the PCB in alternating lines?
- MrsPeaches 3y agoFor anyone based in or visiting London, exhibitions at 180 Studios [1] often use this kind of tech for art shows. Well worth checking out if you are into art and tech. [1] https://www.180studios.com/ https://www.180studios.com/
- brcmthrowaway 3y agoInteresting, any tech x art museums in the US?
- edwardjberry6 3y ago[flagged]
- joelegner 3y agoEven if you never intend to attempt a project like this, there is something valuable to be gained by reading narratives like this: humility. Not many folks could pull this off. I sure could not. It’s a good reality check.
- orbital-decay 3y agoMake an acrylic cube or a sphere, put inside a projection surface that's able to rotate around one axis. Pump the air out for it to be silent and to be able to use a really thin sheet. Spin it with an external magnetic field. Project the distortion-corrected and spin-synchronized image to it with 2-3 projectors under different angles. Bang, you have your own Star Wars display that's entirely doable by a hobbyist.
- late2part 3y agoCool! Can you do this and write up the steps like the article?
- orbital-decay 3y agoNot me, but someone did that. https://www.youtube.com/watch?v=VTe0p5BMEBM https://www.youtube.com/watch?v=VTe0p5BMEBM https://www.youtube.com/watch?v=9dWt7pVx9i8 https://www.youtube.com/watch?v=9dWt7pVx9i8
- bigbonch 3y agoReminds me of this 20Q toy I had as a kid: https://youtu.be/2C1No7cv84o?si=xAFibiv9LeVxM-rF https://youtu.be/2C1No7cv84o?si=xAFibiv9LeVxM-rF
- nothacking 3y agoI wonder if inductive power transfer could be used to eliminate the need for a battery. It would only have to power the LEDs, not the motor as that could be mounted to the base. Additionally, both coils could be placed right inside of each other, and on a ferrite core.
- aj7 3y agoWhy waste time with a bunch of discrete LED chips mounted at very coarse pitch when there are small LED DISPLAYS?
- TulliusCicero 3y agoAccording to other comments, refresh rate. When each pixel actually represents multiple pixels in a circle, you need a much higher refresh rate than 60 Hz.
- tgsovlerkhgsel 3y agoI wonder how much this could be improved/sized up. Each pixel on such a setup travels along a circle. Spinning at 1200 rpm = 20/second, a 1000 Hz display would have a resolution of 50 segments along this circle. With a 10 cm diameter, this would make the outer "pixels" in the virtual 3D display around 6mm long. The outer edge of the display would also experience a force of 80 G at that point, so bigger and/or faster spinning quickly becomes challenging (although it's only linear). Driving monochrome OLED displays at 500+ Hz has already been done https://blog.adafruit.com/2012/02/03/adafruit-ssd1306-monochrome-128x32-oled-graphic-display-running-at-over-500-hz-frame-rate/ https://blog.adafruit.com/2012/02/03/adafruit-ssd1306-monoch...
- augustulus 3y agoyou might be able to improve the image with something like this, or a plastic version of it https://thepihut.com/products/ito-indium-tin-oxide-coated-glass-50mm-x-50mm https://thepihut.com/products/ito-indium-tin-oxide-coated-gl...
- weinzierl 3y ago"Small circuit boards from China are essentially free[..]" A little later: "Some time ago, I got access to a pick and place machine (a Charmhigh CHM-T36VA). I have it on semi-permanent loan." Why is it, that it still makes sense to assemble boards yourself while outsourcing PCBs is a no-brainer? It doesn't have to be "essentially free", but isn't there an assembly service that is suitable for hobby projects like this? I assembled a fair share of PCBs, both for hobby and professionally (in R&D), but I neither have the time nor the space to do it anymore.
- randyrand 3y agobecause pick and place machines need to be setup per device this is a solveable problem tho. I hope someone solves it.
- cglace 3y agoPcbway.com has incredibly cheap assembly for low-volume runs. They will also source the parts and find replacements if they can't find the ones you requested.
- HeyLaughingBoy 3y agoMaking PCBs can be "essentially free" because the manufacturer can group multiple orders on the same panel so they reduce manual workload and increase throughput. The PCB manufacturers typically also offer assembly services, but individual assembly orders require individual sets of components. So you either need parts feeders with a huge variety of components (read: expensive) or you need to intelligently group the orders that use the same set of parts. And for minimum cost, you'd need to group the orders that used similar parts onto the same panel so they could all go through the P&P at the same time. I suspect that it's feasible, but there's not enough cost pressure on assembling PCBs for the manufacturers to bother going down that road.
- s-xyz 3y agoWhat would be the effect of adding two displays instead of one? Or even more, like 5/6 sides. Wouldn't this potentially create richer effects?
- gunalx 3y agoThis would be cool as a finished production ready pcb with the logic and motor and a solder connection to the led grid.
- lifeisstillgood 3y agoWhat's missing here is that I grok the concepts but I am ammillion miles away from having the tools, the setup, the basal how-to to appreciate how hard this was I am always banging on about software is a new form of literacy and I love and encourage any attempt to get kids coding, but there is a huge gap of "maker" style hands on availability - more libraries with "maker" areas, more encouragement The UK supposedly has a large software gaming industry now because of things like BBC micro and the cottage industries that sprang up in the early eighties I conjecture that a similar industry of light-medium hardware will spring out of building sufficient open access and just letting creative people find entirely new ways to build. In short, me wanna try that, and I am egotistical enough to believe everyone else will too
- larodi 3y agoSoftware is as much a form of literacy as being able to compose music. It is at best a form of art, which does not make it literacy. Several points: Reading code solely does not make you good expert in it. Literacy is needed in any area, while artisans can go without software and still produce. Software is about logic, literacy is about conveying meaning. Knowing how to code does not at all teach you how to communicate.
- lifeisstillgood 3y ago>>> Reading code solely does not make you good expert in it. Neither does reading words. Literacy is not just reading - but it's a big component. Reading a book on cooking does not make one a chef. Reading the code in a toyota robot won't make you a kanban focused floor manager. >>> Literacy is needed in any area, while artisans can go without software and still produce. My argument is that so much of the world is going to be eaten by software that being illiterate will put you at enormous disadvantages. Not every part of work will be software-replaced, but so much of the surrounding "B-work" will be that, I don't know, an artisan bricklayer can still do their work well if they are illiterate but they will be disadvantaged "in life", from invoicing to whatsapp messages. >>> Software is about logic, literacy is about conveying meaning. Straight nope to that. More and more software is encoding meaning and enforcing that meaning. Unless we are talking about evoking emotions - and even then let me introduce you to some edges of the gaming community. >>> Knowing how to code does not at all teach you how to communicate. I think pretty much every software list of advise since 1980s has included something along the lines of "learn to write english better"
- pard68 3y agoIf you make the number of columns odd, won't it naturally lead to centered LEDs?
- masfuerte 3y agoThe axis of rotation needs to lie in the plane that the LEDs lie in. At the moment, the axis of rotation lies in the plane of the circuit board. Imagine the LED circuit board placed flat on a table. He's talking about adjusting the position of the LEDs in the vertical direction, which means adjusting the position of their board. Moving the LEDs relative to their board won't help.
- intrasight 3y agoI get that volumetric displays are cool and all, but you'll spend tens of thousands for one that will still underperform VR/AR googles.