I am thinking that the way to ace the marble installation would be to go completely glueless. Size the holes a few nm undersize, then try to fit the marbles in frozen and let expansion seat them. Maybe that wouldn't work, but worth a shot and easy to enlarge the holes slightly if necessary if it doesn't.
@gtempo4673
Ай бұрын
287th subscriber. Just saying for when you go beyond 10k or more.😊
@Sysshad
Ай бұрын
What you and most people today call "more difficult" was the standard on how the first cubes was made :P
@user-vw4ye3fc3l
Ай бұрын
This guy is so kind ^__^
@conorstewart2214
Ай бұрын
In terms of making the weather display silent, I would suggest small stepper motors and silent drivers, they should be more than powerful enough to move the discs and with silent drivers at low speed they are really quiet. Also you can count the steps then for the positioning of the discs. Since you have 4 discs, an arduino with a CNC shield can connect 4 stepper motor drivers or you could buy a 3D printer mainboard, they have at least 4 stepper motor connections. Another more expensive option would be to use brushless motors and something like an O drive, but that is definitely overkill. Stepper motors are likely the best and cheapest option but using higher quality brushed motors with gears could be an option, maybe something to look at would be a “Geneva drive”, it provides a nice stepped rotation from a continuous rotation.
@MaltWhiskey
Ай бұрын
Indeed a weird way to make an led cube. You sure are original by making a 5 high instead of a 4 high cube, the 4 high makes for very elegant charlieplex wireing. The teensy 4 is way to powerful and expensive for this. A couple of transistors/mosfets and multiplexing combined with chalieplexing on the esp32 to reduce pins would have made more sense maybe?
@Bianchi77
Ай бұрын
Nice video, thank you :)
@witnesspropro
Ай бұрын
You need to sort out your levels. Your intro music is way too loud compared to the rest of your video.
@murraymadness4674
Ай бұрын
Is this because it was 2020 and you could not get any parts at all to do this the right simple way? A simple ws2812 string requires one pin for all leds..Or the PL9823 leds that are not smd
@martijndenhartog1571
Ай бұрын
Hi David, Love the video. I like how it is a small journey. Keep up your work. I always want to do some small projects in my time. Wish you the best man.
@newmonengineering
Ай бұрын
I have been thinking about building something like this, thank you for the inspiration. I will be using an NVIDIA Jetson or similar because I want it to do AI on the fly. I like the idea of having additional modules instead of it being all one piece. Maybe I will make some form of stackable pack that i can just plug in parts that ai need as needed. You will not need many things to browse the web, so if you unplug the module you save power. Maybe one day I will get to this project.
@newmonengineering
Ай бұрын
I like the concept. I think a resin printer with clear resin and goldfish shapes cut in half just large enough to trap some air and an led then glued together would make this next level but i guess with resin fish you would likely hear a clank when it hits the edges of the tank. Maybe with something clever like a vortex or something it could be avoided not sure but it would definitely look cool with actual fish shaped lights. I love the project!
@devil8877
Ай бұрын
Epic video bruv keep it up my guy 👍😃😁😆
@MossCoveredBonez
Ай бұрын
the weather display has bioshock vibes, definitely going to make one at some point. The solar system lamp would be great if the planets moved based on nasa data
@MossCoveredBonez
Ай бұрын
really cool test project
@gabrieldai88
Ай бұрын
nice projects. what about the blue block with yellow cogs on the wall?
@mariusbejenuta5386
Ай бұрын
Cool video David, keep on making!
@idabss2710
Ай бұрын
man check out the Sony Vaio Duo 11, his keyboard solution is really similar to what you wanted at the beginning with the slide keyboard, maybe you can repurpose one of those chasis replacing the board with the PI , I'm not an electrician and also dosnt deeply understand this matters but just love these concepts, keep it up!
@pp3v42_g3h
2 ай бұрын
3:16 You could have made it a 19*20 matrix and not use an extra multiplexed part, wiring would be a bit harder, but still doable, because you can just split the 20 to 15+5
@JarydGiesen
2 ай бұрын
Keyboard lanyard idea is one of the coolest low-tech solutions I've seen in a while!
@SenorDerpyHooves
2 ай бұрын
kzitem.info/news/bejne/wninqKt6sHqoiJg mouse? would the Pi Zero W have been able to do the job if not running a GUI?
@mechticulous8202
2 ай бұрын
That's Frickin Awesome!😅
@SPIKEAdventure
2 ай бұрын
Awesome idea, This gives inspiration to a mobile Game dev computer I've been wanting 🤘
@BariumCobaltNitrog3n
2 ай бұрын
I forgot I have epilepsy and woke up on the porch naked. My house doesn't have a porch. My name is Charlie so I guess I got Charlieplexed.
@mycomputerthings
2 ай бұрын
176th sub. he seems like me, add stuff because it is cool and you just can.
@markeverett1393
2 ай бұрын
Write it bare metal in forth. There would be no flickering and the processor would have plenty of cycles available.
@kyleallred984
2 ай бұрын
The pi, as i understand requires 5v volts. By supplying lower voltage via a single cell, and all the cells in parallel the voltage was still to low. As for the booster chip. Im guessing it wasn't able to give the max amperage the pi was asking for. 5v 3a is what I shoot for.
@___aZa___
2 ай бұрын
frickin cool!
@generationalgamers8925
2 ай бұрын
rotate the cube in the results or at least pan back and forth
@FiveFiveFiveFourOhOneSeven
2 ай бұрын
Excellent, David!
@jtreg
2 ай бұрын
adhd cube.stop moving you are making me sick man
@kaoshavoc
2 ай бұрын
I have only ever idly thought of doing this, and trust me, I would probably have never done it, but the thought has helped me stay awake a night or two. This is freaking awesome, and I don't know how you don't have a ridiculous amount of views by now. You have scratched an itch by brain had but could not provide the spoons for. Thank you.
@m.sierra5258
2 ай бұрын
You completely skipped over one important detail: Dimming! Your explanation only shows how to switch the colors on and off, but how did you dim them? Pulse length for every LED?
@The3Doomer
2 ай бұрын
just PWM, why not
@nous404
Ай бұрын
For a Charlie plexed cube you can only have basically one LED lit at any point in time, you just have to very quickly loop over all the LEDs that need to be lit and give each one a small windows to be visible. Then rely on persistence of vision to make it look like they are all active at once. To dim an LED you just need to turn it on for less time or skip it for some update cycles. You cannot use PWM for this, each pin needs to be controls many LEDs and it is toggled in a non regular period. Note that because of this all the LEDs are quite dim to start with as they are only ever on for a fraction of the time.
@kosi2801
Ай бұрын
This question also came to my mind as it was one (of a few) issues that I also could not solve when I attempted to build a LED cube 10 years ago using a Raspi of the first gen. I also hit the activity flickering issue, but could solve it with OS priority settings (was about to switch to Realtime Linux at a later point for higher reliability). In the end I was unable to solve that dimming issue as with higher "framerate" to simulate PWM (or rather BAM) modulated dimming I got stuck with some sort of "phantom" issue, where the previous LED I had active was not turning off fast enough. Until today I could not solve that issue but I still have learned one bit or another over the years to undertake a new attempt, if I had the time nowadays 🙂 Great project and explanation!
@sigrice
2 ай бұрын
Subscribed!
@woodzyfox4735
2 ай бұрын
I wonder how one could make a 50x50 led cube :o
@ultra98000
2 ай бұрын
are you autistic? (this is a compliment)
@rydextv
2 ай бұрын
his accent seems american
@Jdbye
2 ай бұрын
You save a lot of pins, but you can only light up a single LED at a time rather than an entire row, reducing brightness significantly. Additionally, it makes the wiring and code more complicated, and unintuitive. Generally, I don't think the tradeoff is worth it, when both microcontrollers with a higher pin count and shift registers are cheaply available. Soldering a LED matrix is already annoying enough with conventional multiplexing. An Arduino Mega, for example, has more than enough pins for this purpose, and the clones are cheap.
@flipschwipp6572
2 ай бұрын
Thought the same, its unneccessary complex design bringing unneccesary drawbacks. Just shift reisters for the colums and you can live with using 8 pins for a 5x5x5 matrix
@trepidati0n533
2 ай бұрын
@@flipschwipp6572 It is just a proverbial "thought experiment", the world gets pretty boring when everyone always converges on what, at the time, is optimal. No different than the guy who calculates pi with relays.
@jainvibhore1997
2 ай бұрын
Amazing work dude! Looks so pretty! Keep it up!
@WacKEDmaN
2 ай бұрын
this is the standard arduino setup...charlieplexed... ive still got my 4x4 cube sitting here i built in 2014...(i would have made more but..didnt have the leds on hand) you should really be using transistors on each row to power the leds otherwise you can burn out the mcu's gpio pin circuitry... ...you almost have a nice grid there to be able to make letters, numbers and symbols on the faces....
@rrohbot
2 ай бұрын
The cube looks awesome. What's the intro music?
@nicolasfiore
2 ай бұрын
Dude your head bobbles like Ron Desantis'
@Enigma758
2 ай бұрын
Nice idea! I gather the genome is stored on an SD card?
@airfriedquadsbw
2 ай бұрын
I made a 16 x 16 x 16 led cube. Thats over 4100 solder joints once the bottom plane is attached to the board, and the wires are run to each plane. So ya, thats alot of soldering. And a lot of set up for each, and then debugging was not alot of fun. But it did turn out very cool.
@newklear2k
2 ай бұрын
You could look at using mineral oil as a medium to slow down the motion as well.
@frickes_projects
2 ай бұрын
That's a good idea. At one point I considered using a thicker fluid, but I wound up not pursuing it. I'd be interested in seeing what it looks like for sure. I wonder how the pump would handle it.
@newklear2k
2 ай бұрын
@@frickes_projects I can't speak directly to the specific type of pump you're using, but there is certainly types that do handle it perfectly well (magnetic drive and fluid transfer pumps for example).
@drfrancintosh
2 ай бұрын
Awesome work. I'm a big fan of showing our mistakes - that's where real learning happens. So, thanks for that! Also, your Maker Laptop reminds me of Eric Cartman's Trapper Keeper 3000. I'm looking to more stuff from you.
@drfrancintosh
2 ай бұрын
I discovered CharliePlexing only last year when working on matrixed keyboards / Trackpads. This is a great application of CharliePlexing. Thanks for this and I'm subscribing!
@zame2476
2 ай бұрын
if you now put it inside a milky glass case. Imma subscribe
@ThisRandomGuyYouDidntNotice
2 ай бұрын
yeah guess every maker tried to do some real time computing on a raspberry at some point, for me it was a remote controlling a rc paramotor over wifi or bluetooth but as you found out too, constantly getting your code interrupted by an OS can be a real pain :D
@anotherguycalledsmith
2 ай бұрын
For an American, you have quite an Italian body language ;-) Looks _really_ great, thank you very much. I think making this cube somewhat larger would make it look even better… I looks rather dense, these LEDs are so strong that they would optically still work fine with more space around them - and make soldering somewhat more ”pleasant“ (if you can say so for 500+ soldering spots ;-)
@anotherguycalledsmith
2 ай бұрын
@@mal2ksc Yes, I already saw that ;-) I know that it is already an awful lot of work, but investing the additional time and material would be beneficial for the project. There are some guys here on KZitem presenting this as a kind of “artistic light installation”… And to have a whole m3 of it in the middle of your living room makes it really stunning. I myself hate this kind of never-ending work and try to avoid it, but if somebody even goes this _extra_ mile… ;-)
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