Extremely Dangerous Holographic Christmas Tree of Death
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- Опубликовано: 3 окт 2024
- If you have ever thought to yourself "Do you know what I need in my life? A giant, super dangerous, spinning holographic Christmas tree display." then this is the video for you.
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#christmastree #cyberpunk #future
I'm more comfortable around it now, but I'm pretty sure its spinning at 10Hz, and not the 2Hz I say in the video...
Follow me on Twitter, I'm going to be posting some of the RUclips comment ideas over there: bit.ly/SeanHodginsTwitter
This look so sick, both the tree and the video, nice work men! Will wait impatiently for your next video!
Well Mr. Hodgins, we should talk about laser tents.
Worth noting that, since you have two sides to your display, you can get two frames per rotation. Not sure if you wired it for that, of course, just pointing it out.
You should be easily able to measure the speed using your frame/cycle system with the Hall effect sensor.
One other consideration here is that you probably are encountering more air resistance from the open frame than you would if you enclosed it in a cone-shaped shell, even if that shell added some weight. Consider the possibility of adding a cone shaped shell made out of bent thin sheet (plastic?) in order to reduce wind resistance. Probably have to add some more spars to hold shape, but you might be able to use circular rings spanning between the current spars instead, as a form and anchor for the skin.
Super cool project!
I had thought of doing this exact thing, but with an LCD screen. Should give a holographic effect. I tinkered with a very basic rig... the problems I had were alignment (misalignment causes distortion because the video is "rotating backwards" around an axis while the screen is rotating forward around a different axis... resulting in fuzz.) I assume if you align the two axis and make the frame rate the same you should have a three dimensional image with a cross section of your screen. Rendering an animation that will display properly on a spinning screen is also rather tricky.
Are there LEDs on both sides? then I suppose technically you can double the frame-rate.
That was awesome! Nothing like a little danger in the living room 😉
im sure OSHA wouldnt agree with that
And can totally assist with unwrapping presents. Just toss them in the spinning blades.
@@SeanHodgins this is just a thing that ..i imagine comes straight from aperture science.
Seriously cool build and the danger just makes it that much better
If it's not dangerous it's probably not working.
I want one!!!
Taking pre-orders with a signed liability waiver. Shipping Dec. 2032!
Damn you are here 😳
yo wassup
@@SeanHodgins Dec 2032 is great! Where do I sign? Take my money. 10 years from now is faster than I'd build it myself.
All the big bois are here
No trees were harmed in the making of this video! Amazing project 👊
No humans either, luckily! 👊
Wow, what kind of deep verification that I’m watching the stuff I want to raise my build skills? NerdForge chiming in! HAHAHA!!! Sean, you are a MAD LAD and I hereby hand you my highest compliment. You sir a serious MAD SCIENTIST! This was spot on bad ass! Edited to add: Nerdforge you kick my ass every freaking time as well and are in the same rarified air!!!
Think again
Wow Nerdforge is here 🔥
8:40 - air resistance. Easiest solution: change out from metal channel to a blade style that can slice through air. And, anything else you stick into it.
Originally I didn't want to use a bottom bearing at all, so I was looking for rigidity. At this speed even the U channel slightly bows out, so flat might be challenging there! I was thinking small round tubes, or a wedge shape with the sharp edge facing the direction of resistance. (for any future projects using this 👀)
@@SeanHodginsYou could always stick with the U channel and print out some 3D printed blades on the side of air resistance - that way you can get the best of both! maybe a 3D printed mold and using carbon fiber for the actual parts if you wanna save even more weight.
A quick experiment would be to cut a pvc pipe in half lengthwise (or use plastic half round trim) and zip tie it to the leading edge and see if that drops the air resistance enough. Do the same to the trailing edge for greater drag reduction. If weight is an issue you could just do the bottom half of the tree (higher drag on the parts rotating further from the axis).
@@SeanHodgins I feel a lightweight (aka tough tubes from whatev) structure could be best to minimize surface area whilst adding structural strength.
Maybe you could put it in a chamber filled with helium to reduce the air resistance? I think this is what modern hard disks use to get high speeds. Or a vacuum, but that would be harder and noisier.
Somehow the slight danger makes it even more beautiful. Also never would have guessed air resistance would be that high, and I've done my share of wind projects!
I learned a lot on this one!
Put blades on it? Makes it aerodynamic and more deadly
This is insane but couldn’t you double the refresh rate by strapping another LED strip on the other side so they’re both updating the picture at whatever the image should be 180deg from each other?
Absolutely, I'm pretty sure its at 10hz now, so could get pretty close to 24fps video.
Might be able to get more bang for buck (while spinning slower too) by having more slices of strips than just 2 too
Sean really took us from *"🎵Oh, Christmas Tree🎵"* to *"OH! It's a Christmas Tree!"* in this one.
Just don't touch it, it has a nasty bite!
@@SeanHodgins you my friend have made a DANGER CONE. We should have merit badges, lol.
“ I’m doing it for you. But I’m not even sure if you exist at all, that is, outside of my head…” is the single most confusing yet complete, understandably relatable phrase I’ve heard in a long time. As I sit here accepting the fact that I might be part of your subconscious… Thanks for that man. Feels good to know that I’m not the only one that sometimes feels that way. Cheers! Thanks for the content!
One, or both, or neither of us exist! That’s for sure!
So far the coolest Xmas tree 🎄that we've ever seen!! What a terrific job you just did, Sean!!
Thanks PCBWay! Lots more projects to come!
Holy crap. "Human sized blender" is completely accurate. Terribly impressed by your work normally, this is solidly cool...and dangerous. Glad you are safe! Keep up the amazing work.
I am still in one piece! Thanks!
I wonder if adding some kind of fin to the tip would help reduce drag and get you better rotational velocity. It would definitely add to the danger rating. PoV projects are cool! Thanks for sharing!
it is harder to show, but really you just have to play with the shutter speed/exposure. once it is tuned in you can get it looking pretty good
Great stuff. Loved the internal monologue and sound mixing in this one. Also, tying the outro to the intro at the end was just lovely.
Wow, thanks! I sort of agonize over the audio, since I worry people won't be able to understand me or something. Thanks for the feedback.
You should put this entire video onto the tree
And then reupload it, and repeat? Tree-ception! 😲
You may be able to effectively double the Hz while keeping the RPMs the same by putting a separate light strip on each side of the tree. Kind-of an interlaced type of setup.
This is my favorite style and feel of video. You are amazing. The tree looks much better in video looking at the reflection on the board(blast shield) than directly.
Thanks! Yeah it’s very much a delicate balance of light to get the right shot for everything. Also nothing to do with rushing to get footage done since I was running out of time 😆
This is now my fav science related video on yt, holograms are the next step towards usable AR experiences. Sci fi dreams never die
"Rapid deconstruction"
Lol
"Let the smoke out"
Love the building/maker/engineer euphemisms lol
Cool. Next? Princess Leah and r2 d2 - “Help me Obi-wan….”
Ohh I gotta do that now!
The tree looks amazing.
Would 3D printing a small aerofoil for the bottom leading edge of the the tree limbs help reduce air resistance?
in theory you could, but there are other more economical (and less tedious) things you would want to do first. to name a few:
-just change the bar from square stock to round stock. probably not done in video because machining is hard and sourcing materials quickly is expensive. the most expensive commodity is time.
-add a second strip of LEDs to the other side. with twice as many bars, you can spin at half the speed with the same effective refresh rate (although it takes a software change that might be more difficult in practice than it is in theory). also expandable into a four bar setup. less speed = less resistance, and is safer. and quieter. loads of wins on this one.
-use a stronger motor. this is just throwing money at the problem, but sometimes simple is best.
-add a second motor to the bottom. this one is probably not worth doing ever, since you then have to perfectly level and place each motor in line with eachother. your aerofoil idea is definitely something I would try before this one. but two motors = twice the torque (in theory).
@@arcanealchemist3190 hit the nail right on the head with this reply!
the slip ring! That has driven me insane since I was a kid. Thank you for finally telling me the name of this incredible device
There may be other names, but that gains the most results.
Perhaps it’s the weed I needed to float me through the holidays, but this just might be my favorite video of 2022.
To reduce the air resistance you could have made the tree out of much bendier material and then resisted the outward centrifugal bowing with fishing wire between the sides.
Definitely, though I do think you could get some weird twisty resonance with just a wire. Crazy stuff starts happening at this speed apparently.
@@SeanHodgins yeah. Probably best to put the motor in the plant pot at the bace, then have a solid bar at the bottom.
A neutral density filter should help you get the shot for these type of things, you can use them to take long exposure photos of things in the day, like a stream so you get that smooth flowing water effect, some prosumer cameras had them built in and you can make a variable ND filter with two polarizing filters based on the angle difference between the two filters (usually adjustable because the polarization needed to be adjusted to eliminate reflecting light from a certain angle) which is handy if you aren’t sure what the best density would be for a given shot or if you deal with a wide range of scenes you need to shoot with low shutter speeds.
You can see that this would probably work in the last couple demos when you can see the reflection of the tree in the "blast shield" behind it. The image there looks better
Dude what an amazing channel. Glad the algorithm suggested it to me. Keep up the good work bud'. Great research, content, video editing style, music . You're awesome and good job!
That's a wicked project mate! Well done. And it seems your shop capabilities are coming along, there isn't much you can't do soon haha. Making that lower bearing compliant seemed strange to me though, as that doesn't give you any more rigidity, it just slows the rapid deconstruction in the long run. I would have made it as stiff as I could and spent the extra time balancing it out, but hey, if it works it works. Just glad to see some more of ya! Merry Christmas!
I actually removed it in the end! It worked alright But the reason I made it was that the top frame was not parallel to the bottom(alone with a bunch of other parts) so I was sort of cheating with that bushing. Haha
Could you adjust the aspect ratio for a specific viewing angle? Just curious because of the taper.
Interesting idea, I was just doing it a bit in the video software before exporting the images, but it wasn't working well so I just let it be. There are a few I'm doing that need it, like projecting a person onto it.
Keep working, all top RUclipsrs and us tech nerds love your engineering and editing ❤
Did you go to school for electrical engineering? Always wanted to learn how to make this kind of stuff. Amazing man. Love the theme behind your channel too and the little subplot/stories.
Great to see you back. Excellent content as always
Thanks!
You can add centre shaft and thin out side led frame it will give you more stability, torque and rotational speed for long structure...
Very good idea!
Person:
"Oh, what a pretty tree! Can't hurt just to touch it a litt..."
Tree:
WHACKITA_WHACKITA_WHACKITA
Followed by Rapid Unplanned Deconstruction
I had a mini heart attack at the end when you put your hands out to warm them by the digital fire.
When you mentioned the wind resistance of the square tubing, my first thought was to make the leading edge tapered to help with drag. My second thought was of how much more easily that would allow it to maim you.
Its one of those things where the whole time, I was thinking "there is no way its the air resistance! Its a furnace motor and designed to blow lots of air!" and was sure it was bearing friction and misalignment. By the time I realized, I had already committed most of the parts/machining/time to the aluminum U-channel, but it worked out!
@@SeanHodgins What’s important is you got there! And thank you for sharing all your missteps and mistakes and stumbling blocks!
I think it’s as important for your viewers to see you solve those problems as it is for us to see how you made it. Great works as always!
Really nice work! I think we're all wondering: is it possible to do a POV ornament on a POV tree :) If anyone, you would be the first to make POVception.
I guess the secondary POV level would need to be some order of magnitude higher rpm for the effect to work on it, without just drawing spirograph shapes in the air. Which totally made me think of that @3blue1brown video "Drawing with Circles". Hmm, the gears are spinning in my head now.
@@SeanHodgins Are the gears spinning at 10 Hz or 2 Hz?
Somewhere between those numbers for sure.
Now you could add ray/strips from the core center to the edge filling the triangle and add depth to it !
Awesome project Sean!👏Love the video vibe as well. It's almost like a dystopian version of Eliot's in head convos (in mr robot)
Stream Idea: a public facing (and temporary) server for users to drop GIFs that gets processed into separate folders for the Pi to fetch run through one by one during the stream.
Thank you! Ohh, I like that idea. I was kind of thinking people could maybe draw little Christmas ornaments to have them show up on a tree, but cycling through them like you said would definitely show a bit more detail.
@@SeanHodgins Amazing! I just figured chopping GIFs into frames was the least a mount of work 😂 User adding ornament is also fun idea!
4:03 - cool project. Maybe try out “rotary transformer”, these have no friction to wear contact conductors and have much longer life span than slip ring, you can spin the leds 24/7. Better yet, try wireless electromagnetic induction charging to avoid slip ring. You should cover it with a transparent box/shield. Don’t want to get hit if something dislodges at high RPM…
Ohh, I didn't know the name to search for, thanks! Ill check them out.
That kinda messes with my mind. But it’s cool.
I've wanted a giant, super dangerous, spinning holographic Christmas tree for EVER!
I knew I wasn’t the only one!
nice volvo in the back!!!
Fancy new spinning Christmas tree: "I'm comin' for your 9 lives, cats!"
😺>🌪️>😾>🙀
Yeah, they wouldn't try to knock this one over twice.
very neat. Did you think to video the reflection in you shield because it was much clearer than the tree itself. Not sure of the why but it was pretty cool.
I didn't realize it would show more detail at the time, but I wanted to show that it was a 360 degree display!
So cool and dagerous :))) perfect project for XMAS. ;)
According to some stats, Christmas trees are the cause of nearly 160 house fires per year in the US. So this one might only be slightly more dangerous. 😁
@@SeanHodgins HAHAHAHA didn't knew that, so, yeah is a lot less dangerous then... In Spain, pretty much everyone has plastic Christmas tree. We have no real trees :/
Great project. Fun video 👌
Thanks Ben!
Impressive as ever!
Your project creativity & execution is definitely disproportionate to your present number of Subscribers. You should be ~1M
The narration and creation is on point. Love it
Thank you!
I'm more interested in that 240 in the background! Did I see a 70 or 60 too! And yes, that tree is wild!
More of that to come! 1981 242. and I have a V70 as my daily.
That's one of the best X-mas tree of 2022😍😍
Merry Christmas and a prosperous new year to you.
Blessings from India 🇮🇳🇮🇳🙏🙏
Thank you!
Looking at the reflection in your blast screen the tree shows up nicer on the camera.
Top notch video as always!
Not at all a critique, but technical curiosity: You mentioned the box aluminum was giving you too much air resistance, did you rule out steel bar stock which would be thinner on the axis of travel yet hopefully also rigid enough, or was it just what materials you had acces to?
Also, would there be difficulty in attaching another adressable RGB strip to the other side in order to double your effective visual Hz?
Epic project!! Merry winter solstace adjacent holidays!
In the beginning my goal was super low weight, and helped it was easy to get off the shelf. I looked into 6ft carbon fiber rods, but wasn't prepared to spend that just yet since I wasn't sure if it was at all going to work, but maybe on the next one. But also, something to note is that I didn't think air resistance was going to be an issue at all! So my assumption was majorly wrong.
Attaching a second LED strip would be simple, then just would have to do a ton changes to the code, but thats all.
Thanks!!
@@SeanHodgins oh yeah, I definitely would not gave thought at all about air resistance. You summed it up best, get the first prototype out of the way as it still let you know what needs to be worked on.
Awesome project once again.
Great work ❤️
Thank you so much 😀
Very cool idea and great prototype.. but its res is to low ya need 4x arms not 2 and 2x the leds like the real small holofans that are 1080p have 4 blades at half a metre each ( not the cheap Chinese one's with 2 blades) and each blade has 250ish RGB LEDs so your 🌲 could be used for big holograms witch i like but the 4 blades and double the amount of LEDs and it will be awesome 😎
Animated wifu christmass tree. GENIOUS
HVAC fan motor is a good start but I would have opted for a PWM controlled universal motor setup like what is in a washing machine. This way you can control the motor better.
Always looking to improve. Got a part number?
Is he a maker, or is his an artist/story- teller? I guess both. Love this channel.
Thank you!
Gotta have Max Headroom put in an appearance. :)
I think that’s one I’ll have to do
You need high resolution images to see the Christmas tree clearly. I've seen the spinning propellers from China that spins very fast to make images and they look really cool, but you if you use a low res image, then the hologram looks bad.
Best. Christmas. Tree. Ever.
What an honour!
cyberpunk af bro - love it
Everyone will have one in their house one day. 😂
Nice project. You know you could have it dispense the smell of Pine in the air every time you start it.
Christmas will never be the same. Cheers!
Perfect!
Very impressed with the quality of your videos
Thanks!
One thing you must display is the Utah teapot. That's tradition.
on it!
If you put another strip of LEDs on the other side of the frame wouldn't it allow you to update the image twice as fast giving you something much closer to film standards?
Definitely would improve the refresh rate!
Next you should *Go Beyond* and create a soap bubble that is actually a thing wire made of explosions spinning really fast to make the illusion of a bubble, because this "bubble" is made of infinitely thin explosions this bubble doesn't exit within our world kf reasoning and it GOES BEYOND all the laws of the universe
I would love to see this perfected and enlarged to the point it could go on top of a real Christmas tree
Ohh interesting. Neat idea.
Nice work and great video!
Giant spinning globe with multiple layers would be cool.
That would be cool.
I was just about to start a POV project and having second thoughts but this inspired me to go for it :)
Get on it! 😁
Getting some Mr. Robot vibes from you man and lovin it
Elliot is inspiring
That type of HVAC motor requires air to be flowing across it for cooling. Prolly getting pretty hot
double sided tape also works great for leds.
I’ve got tape on too but too much force so zip ties needed too
Awesome !!!!
Thanks Stephen!
Thumbs up for the 2 door Volvo 240
Its been killing me to not have time to work on it, that should change soon and videos to follow!
Like this, curious on something stupid... why hang it opposed to having the motor in the bottom? And curious if old school brushes might be good to track it?
Just the way I had it designed in my head. And for future features
This is stunning. The quality presented mixed with an interesting project with a cool outcome made me instantly subscribe and comment, even though I rarely do so.
I'm honoured, thank you!
Keep on keeping on!
Yes! I love that
So a 2160° shutter...nice.
It would be cool if you could show live video on that.
Might be possible at some point
@@SeanHodgins Ether like a video file on a PC pr even like a TV broadcast.
Basically holograms at this rate
Whelp, I guess I'm rewatching Doctor Who's "The Christmas Invasion" tonight 🤣
Seriously, thanks for this. I'm playing around with my own (much, much smaller) POV project. This helped me with some concerns I'm having now... the biggest being: procrastination 😅
Hey, Merry Christmas, Sean. And praying you have a wonderful 2023.
Oh I should watch that too! Also I think a Dalek would project perfectly on this tree. Ill have to give that a go!
Merry Christmas!
I was losing my mind because I couldn’t find anyone else in the comments who made that connection.
If you used 4 led strips you could get 24fps at only 6hz 🤓
Higher wind resistance though, but that could be far more optimised 😄
True, I was thinking 3 arms might be a good compromise.
@@SeanHodgins A wee bit more tricky to manufacture though. Not much, but a little 😇
Love it!
Are there only LEDs on one side? Why not put them on both so you can get twice the frame rate (or half the spinning speed)?
I have a question. At the moment you only have a LED strip on one side of the triangle. Would the visibility not be better (framerate higher) if you put LEDs on both outsides of the triangle?
It would definitely improve with the right software updates.
Sick Volvo!
😁
4:57 made me laugh :))
Perfect tool for the job. lol
Man this is amazing
Thank you
👏👏 yes man love the vibe from your videos look forward to the “bigger” project after seeing this 🍻
Next one will probably need to be a multi episode series!
@@SeanHodgins we’re down for that 🍻
Can't tree's FPS be doubled by using two strips of lights? So when the tree makes half a loop, you change the frame shown to the next
make it a 3 blade fan, it would speed things up right ?
Nice work!
Thanks!
Strangely, it looks better in the reflection from the 'blast shield'. See the short clip from 12:05 to 12:08.
Here's a nice rabbit hole: on the Star Wars Galactic Starcruiser hotel thing they have this scene where Yoda is on a conical POV display that is on I guess a whip or something. The lines are flexible and then they're limited by a cable between them.
Whoa! It might be a reflective whip with a projector below? or just a really high res strip of lights. Super cool.
@@SeanHodgins a reflective whip is possible, but it's have to have really precise tracking, but it theoretically could work. However they've used POV displays in lots of rides like Rise of the Resistance and in the queue of Cosmic Rewind.
Normalize visual coordinates from conical to cylindrical (aka use the transform tool in an image editor) and you’ll get a much better 3D effect for anything that “fits inside”.
Needs some work for sure
Oh wow, that's a lot more dangerous than I thought it would be.
Heck yeah! Nothing like a project that you’re always worried will explode, catch on fire, or electrocute you to put me in the holiday spirit.
Suppose you could use one of those little pine tree air fresheners on there for the full experience. Haha
Hahaha, perfect, this blows so much air around it will have pin smell all over. Definitely doing that.
Amazing work, keep it up!
Thanks!
Hot Damn! That's just way too much imagination, creativity and skill for one person to have.... You should be ashamed of yourself!!!!!! Merry Xmas and happy new year mate!
Hey Seon! I kind of am. This project actually works as intended and I don't even have to baby it or turn it off and on a few times to get it to work right. Its kind of weird actually. Merry Xmas! Send some of that warmth up here if you don't mind.
@@SeanHodgins Mate, it's been raining and cold here last few days - Summer is still hiding - maybe it's scared of the speed that tree is spinning !!!! I know I am :)