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Spinning a Lego wheel Over 100,000 RPM! 4K
- Published on Feb 20, 2022 veröffentlicht
- Unthinkable speeds using 100% Lego Technic! Mesmerising Sounds!
In this Lego Technic RPM Test I’m using 27 Powered Up L Motors powered by 10 control+ Smart Hubs.
I believe this is the fastest spinning Lego wheel, axle there’s been on Clip-Share!
100,000 RPM equals around 1,666 Revolutions a second which is hard to comprehend.
There’s all a vintage wheel rim which cannot handle the centrifugal force and explodes!
Thank you for Watching, Subscribing and Liking! You people are great :)
- Science & Technology
Comments • 1 480
This really is testament to how amazingly designed Lego is. I wonder but I can't help but think that you were likely getting quite close to the physical limits of the material in those last few tests
@Sina Ozbudun kids playing with, stepping on, etc, puts more stress on these parts than spinning them fast. The design requirement isn’t centripetal/centrifugal force. It’s compression and shear. Given that kids still break them, it’s certainly not overbuilt.
@Nathan Damgaard i think that could also be the shutter speed of the camera adding to that.
It's not the Lego that are amazing, but the people. Tools in the hands of a fool are nothing. Passion, talent, hard work, the right tools and willingness.
Of course mate. They are made in Germany and not in China.
Assuming you have a disk with a diameter of 10 cm, you would have to reach about 65000 RPM to break the speed of sound, that would be incredibly awesome....
Amazing video by the way, as always.
Im am confuced. If he reached 106.000 RPM didn't he also reach 65.000 RPM
@Reth Hard i always wanted to travel into time space with a Lego box !!
Guy breaked speed of sound at home
@ProLansPl The problem is, spinning black holes are essentially pulling space itself at relativistic speeds, so it's more comparable to two people driving away from each other at half the speed of light. If one of them were to turn around, it would look like the other one is traveling away at light speed, but realistically only that person's frame of reference is traveling away at light speed. Since black holes are dragging space itself and therefore the frame of reference, the objects inside an ecretion disc aren't actually traveling near light speed, they just appear as though they are to an outside observer. That's how a lot of people conceptualize FTL travel, warping space itself instead of traveling through it.
The issue with moving things at the speed of light *through* space isn't a size problem, it's an energy problem. If we built a 300,000km pole on a planet that rotates one time every second, the pole would rip itself apart because the energy needed to keep the pole together if part of it was traveling at light speed would be infinite.
@Dr Gamma D that's all cool, but the prospect of seeing relativistic effects in the macroscopic world and in real time is more than tempting. I mean, the guy used relatively simple materials and tech. assuming it's taken onto the next level (it would be "only" beefing it up couple thousand times), the particle on the edge of a disk would hit (okay, okay: be near to) speed of light. these are effects experienced by particles encircling the black holes - spinning so fast they can "see the back of their own heads". correct?
At these speeds, balance is quite important. I would recommend using a silver/black sharpie instead of reflective tape to get rpm measurements. Also, that tachometer you are using will give inaccurate results if it's not held steady. Try attaching it to a stable platform instead of holding it in your hand.
Well the next logical step is to rig a system to release a propeller at max speed. Imagine the height it could achieve.
@Tim Sawatzky Makes sense. I'm more familiar with cars than aircraft. Thank you for letting me know my weird idea ain't all that weird after all!
@WarChallenger you've actually described a real world constant speed propeller. This is what you'll find on all turbine powered prop aircraft, like a Dash 8 or King Air. The blades increase their angle with increased torque through engine power to bite more air. The rpm or the prop remains more or less the same, but the angle of the prop blades change depending on the torque output of the engine.
@Priyabrata Sadhukhan not only that but its too heavy
There is a reason the Thunderscreech took lots of time to design. Propellors don't work at high speeds, even with the variable pitch.
Such a propellor is only possible in the Fast and Furious world, where nearly every law in physics is broken.
His motor is too weak to drive a propeller even at 1/10th of the speed you are recommending. For your reference, most hobby drone props rotate at 20k to 30k rpm at full throttle and consume a few hundred watts. Now think how much it will take to rotate at 100K. Its not proportional by the way, It would take a few thousand Watts. physics becomes weird at that speed.
Man, this is some of the best Lego content out there. Always love it when a new Extreme Brick Machine video pops up.
I wouldn't have thought it possible to get those kind of RPM, but if anyone was going to show it's possible, it would be you. Thanks for sharing Gaz 👍
Hey Lee I really appreciate that thank you! As always :)
The fact that it can go this fast, with what appears to be only official Lego pieces(unless you are using BuzzWiz motors) is incredible. If you want to go even further, you could mirror this and connect it to the other side. However, if you want to achieve speeds higher than this, you might need heat treated axles or metal axles.
@joachim the boss The poor motors are seriously struggling for enough torque according to GazR, and the theoretical versus real RPM backs that up. Meanwhile everything else is struggling with too much torque lol. Damn cool just how ridiculously over the top the guy has gotten these things to perform.
mirroring would result in 2x the torque not 2x the speed. unless the motor torque is insufficient for achieving the required torque that the system needs to achieve the speed limit in which case mirroring would result in sufficient torque for every motor to spin at their maximum speed
Interesting tidbit… the fastest spinning object made by man is/was a tiny ball of silicon dioxide. Scientists got it spinning to 300 BILLION times per SECOND. Crazy.
With a tachometer
300billion per minute not second
@Graeme Hemphill-Hart -9999HP
@AIO inc. isn't 1HP like 736 watts or similar? Pulling from top of my head 700 something watts. 768 maybe. Where's google? lol
@GazR's Extreme Brick Machines! 100k today 300 bil tomorrow?
Who ever would have thought that you can spin a Lego at 100,000 rpms! Great work!
Hey cheers Josiah, after my last test I didn’t think I would do it! Now I reckon 150,000 is possible with a bit more power :)
I absolutely LOVE gear ratio and high rpm videos, especially with lego, just seeing how far the limits can be pushed. I wish there was a world record leaderboard for this kind of thing, "fastest rpm with lego" to promote competition and push the limit as high as possible.
Edit: I'm so excited for trying to break the speed of sound with lego too!! That's such a cool idea
@GazR's Extreme Brick Machines! I'll have to try 100k+ RPM with a 3d printed gearbox, but 20k is already difficult enough!!
I think a competition like that would eventually boil down to who has the best lube and most motors. but i guess you could do motor divs and focus on gear arrangements
definately with different categories (much like speed running games), with lubricant, without lubricant, which motor, how many motors etc.
Hey there thank you so much I love doing this stuff too :) some competition would be great as well but I feel bad using all these motors if others haven’t got them!
The speed of sound challenge maybe a step too far but I can’t wait to try!
Legends say: The piece that flew away is still spinning to this day
Would love to see this on a table saw style design to see if it can physically cut material. Awesome job ☺️
Seeing the growth of those gears at that speed would be really interesting. Nice work.
This is just absolutely crazy. Never thought stuff like this could be made from legos. Bravo!
No such word as legos, it’s LEGO
Hey hey thank you for watching, always enjoying seeing you reply too :)
Amazing! You have really pushed this (in a pure way) to unbelievable levels. I can't wait to see what you do next...
That sounded like a dentist's drill towards the end. Not surprising, given those tend to spin at ludicrous speeds as well (seeming speeds in the 180K RPM range). While each mechanism does have a distinct sound due to its own setup, it does seem like speed overrides that past a point. Interesting.
I'd be curious about an infrared temperature reading of those top gears!
I feel like having it built as a tower, all the wheels are pressing with their entire weight on the parts bellow them, resulting in high friction.
Can you turn it horizontal?
And use a high speed grease.
Hi, Everything free spun so smoothly and when you spun it fast the device actually lifts up due to the forces at play which takes any load off those bottom cogs.
I totally understand where you’re coming from though but in person you would see :) you actually have to pin it down like I did with those two outer beams to stop it floating up! It’s weird lol
I’ve done other tests with these devices sideways and the big problems is there’s more load on the axles going downwards into the beens which then creates serious friction welding! Check my other rpm test to see.
I used silicone lub, also WD40 and 5w 30 engine oil which gave the best protection 😀
Anyone else curious to see what would happen if the wheel on the center spoke was exchanged with various sizes of propellers?
This is absolutely fantastic! You’re taking Lego to the next level. Very well done. 👍
Oh thank you so much! I’ll keep on pushing it :)
Damn! I'm really amazed as to how those Lego gears can take-on all those rpms without breaking!
I seen a lot of people do this, but I’ve never had the idea that you could have multiple motors so that it doesn’t strain.
Anything spinning that fast and comes apart is going to be lethal!
Woah... That 23k RPM swablade is gonna cut anything...
Im more interested in taping an ant to the outer rim, getting it to go super sonic speeds then releasing it back into its colony if it survives lol, it would find walking at normal speed depressing and probably let off some kind of unique pheromone that would disrupt the entire colony, would be an interesting experiment
The fact that it's edge moves at 312 km/h is impressive, considering it's a lego machine
Not spinning in reverse like that.
i like how you still keep the speed meter focused on the end even tho a high speed lego got launched. that's true dedication
I'm curious as to how fast one of the big gears would have to be spinning to shatter due to centripetal force. Like shattering a CD
@Jeff Tank Mid 2010s nostalgia right there (2015). Lol...
@That Guy Alex :) Exactly!
Reminds me of the Slo-Mo Guys. :) They destroyed a CD using centripetal force.
Wow. Great video and I am honestly surprised the plastic did not fly apart due to friction and centrifugal force at that speed.
I would have thought the spinning force would have split the gear apart, but it held up. I remember splitting oranges by spinning them as a kid. All that juice moves to the outside and boom, it splatters everywhere. lol. Not a lot, but still had to clean up.
One thought I had about this system was to possibly doa test to calculate how much torque is produced at the output. The only problem o can see is either overloading the motors or irreversibly damaging the gearing mechanism.
It’s called precision toolmaking and design I am surprised no plastic melted on the experiment. Well done
Man, what? When I was a kid, I don't remember these kinds of advanced pieces. I've seen you do things with things that I didn't know existed in Lego.
With paper saw wheels that fast you could probably cut some oak.
I will definitely try this with the better drivetrain! :)
I hope you are wearing eye protection while doing these tests. I am amazed on how durable Lego parts are
It's amazing that the plastic doesn't melt, the parts must actually get extremely hot with this fast rotation!
Can you use this to exert enough force to stretch a wheel into having a longer diameter?
That friction though. Half surprised it didn't shatter or melt the gears. Lol
I would think that at those rotational speeds even that little piece of reflective tape has to throw off the balance.
"Hey, can you come over?"
Not now, babe. I'm spinning at 100k rpm.
"My parents aren't home."
You are so positive, I love your builds! You deserve a like and a subscribe!
I'd love to see thermal imaging of the setup to see what's happening with the various gears,
Wonder how much better stuff like this would work in a vacuum so the gears aren’t pushing against air resistance
How fast could you theoretically go before the parts weld together?
All you would need is to add something with a radius of 4cm and the tips would be above Mach 1. For comparison the fan of a turbofan jet engine spins around 2000-3000rpm, even the turbopumps on the RL-10 rocket engine only spin at 40000rpm (it is expander cycle though so low mass flow means low speed pumps). Nonetheless. This is fast
Sulfur hexafluoride at room temp has a very low speed of sound, is somewhat obtainable and safe-ish, plus because it is heavy you could fill a tub and do final high speed test to get an insane mach number out of lego. It is a very potent GHG though, like super mega Godzilla CO2 so use sparingly after maxing in air ❤ chilling below room temp also reduces speed you need/will give even higher mach number. Room temp to -40c with air you only need 88% speed for mach1, Ideally you would run a vacuum to remove ""all"" the air and then just squirt in a tiny amount of SF6 in an industrial cool room to have min drag of gas and be able to get the highest mach number to make the ultimate lego mach record. HYPERSONIC LEGO MACHINE!
an amusing technicality to be sure, but i think it can be assumed that by "breaking the speed of sound" they mean the speed of sound _through air under standard atmospheric conditions_.
not that your science is invalid, but this doesn't seem like the sort of channel that would attempt to claim victory by deliberately setting the bar lower :)
This is MAD! It would be interesting to see those pieces spinning at those RPMs under an infrared camera :D
Hey there I’ll look into that! Thank you so much for the info, I did read about this fps cap when looking at the flur one and was slightly confused! Cheers :)
@GazR's Extreme Brick Machines! buy the SeekThermal CompactPro for -300€ and you can connect it with your PC and an open source software where you can unlock the FPS and resolution since it is limited by weapon laws with smartphone use:)
Hey thanks! I’ve looked at buying one but so far not had the courage to pay lol. If this video does really well I maybe tempted to :)
ever thought about trying to make a turbofan with this? I know it might be far fetched but I'd love to see if it were possible
This was an absolutely amazing mechanical engineering and physics experiment! It is just incredible how gear ratios work and how different configurations can affect the way the gear train behaves.
Such an amazing video! Thank you so much for sharing this true inspiration!
@GazR's Extreme Brick Machines! You are very welcome!!!!!
Hey George thank you so much for that :)
I’ve built a 1:39 hand crank gear assembly, but this, this is amazing
Insane how many of those flywheels didnt blow to pieces. These are turbo speeds. Metal blows up spinning this fast sometimes
That’s so awesome!! What an amazing design! What an amazing design too, as always man keep up the great work!
@GazR's Extreme Brick Machines! your literally so close!!! It’s crazy!
Thanks again :) I do like the way it’s progressively building up! Sometimes a viral video can do channels more harm than good weirdly.
I’ve learnt recently it can be a bad thing having a lot of subscribers if only a small percentage watch regularly as they lower your click rate making it hard for any video to do well!
When you originally said 100,000 subs I never believed it was possible in my wildest dreams so thank you :)
@GazR's Extreme Brick Machines! I knew you were going to blow up, I mean you had 1 thousand subs when I started watching your vids, and they where all amazing and so well done, I knew it was going to explode, and it definitely did, and will continue on, great job!
Hey Easton thank you as always! I enjoyed this one and I’m so glad people are watching a big portion of the video too!
It still surprises me! But you had faith from the start lol :)
just imagine what Da Vinci would have created with access to today's tech.
I like that the fly wheel occasionally creates enough lift to leave the device.
2:24 its very possible that pieces like this can break off into literal bullet-speed shards at such high stresses, be careful
The facets of the design are not only brilliant for gauging the mahine but also a testament of beauty in engineering.
Oh wow thank you very much for the comment :)
I've never been afraid of a LEGO Technic machine before like I was while watching this video.
Wow those gears turned into a rocket there for a second! Thank goodness you where using lubricant otherwise I’d ont think the lego would’ve survived
Can’t wait for the speed of sound project! Keep it up!😎👍👌
Cheers Nick as always! if I’m honest the axles still didn’t hold up well lol. I had fun doing this, the sound was mad in person! 😀
It would be neat to get it up to speed (not necessarily 100k) but running at high speed, then chrono each level from bottom to top and watch the multipliers work.
Will wonders never cease? First of all, by running multiple ratios to attain that final RPM, I am surprised plastic (LEGO) gears took that kind of abuse without shearing the teeth off. Second of all, I am surprised that the final gear drive didn't just explode or vaporize! I certainly wouldn't have held my hand anywhere near that thing, lol. [...the things that I watch at 11:30pm ] Nice job though. :)
Haha thank you very much for comment, appreciate it! Lego really is well made!
I’m usually apart of the 1am club watching random stuff :)
1782 revolutions per second. That's fast. If the wheels on your car were spinning at this rate, you would be traveling at 10,497 mph. I referenced a tire with a standard height of 33 inches.
Finally i see a person actually going for it with spinning things fast with technic legos.
Now im wondering if you reverse the gear ratio what kind of torque these 27 L's could produce :D
for reference, a dremel power tool operates at around 25000 rpm. that's CRAZY FAST
Dremel is 33000 rpm. Routers usually about 18000-25000rpm.
@John Smith Well yes, normal for power tools, not legos.
not really, actually thats normal for routers etc
Hey thanks for that! That’s crazy for a power tool!
That’s roughly 1782 rotations per second, absolutely mental.
I'm amazed at the lack of a bigger explosion. Lego plastic is amazing quality
That speed sounds terrifying. Like the yellow just exploding off at that speed is like a bullet.
I’m really curious what the limit of this is. I’ve never personally see the max rotational speed possible. If you could find something that won’t explode (I’ve seen CDs just shatter) I’m sure there is a limit before something simply amazing happens, like a wormhole opens.
Use a dense metal? For example, all the gears and connecting parts could be made of tungsten, while the spinning experimental disc you have in mind could be made from either the same or a variety of other metals, such as gold.
What say you?
That's a really good theory
Have you ever added a lubercant to the gears to see if they spin smoother ?
I think you may have won the Lego rpm war with this one Gaz. That was brilliant, dangerous, ground and Lego breaking all at the same time. Glad you had gloves on, and glad you made the video & uploaded so we can all see how much mad engineering went into it. Did you film then reverse it? 👍🍺🇬🇧.
I’ll check that out Carl I did try the tyre launch but struggling to make a video of it. It was pretty crazy, it hit the wall and literally climbed up it! Then back down and half way up again with rubber left on the wall!
Everything was in perfect order other than the last axle(every run damaged at 1:625) and I damaged the two beams holding it in place.
Btw hooning? New to me! The more I do on Clip-Share the more beers I need 🍺🍺😀
@GazR's Extreme Brick Machines! it was a sound I understood from my brushless kit. It's a sound that says power. How did the "bearing" surfaces stand up to the torque at the motor end, and the power at the top end?
Yeah build something and then dismantle on film and everyone thinks You're even more of a genius builder! I need a beer, have been hooning and it's errrr, hard work!
I saw a rev machine that Colin Furze did, that launches a tyre. I bet if you did they with Lego it would fire it miles 👍🍺🇬🇧
I never thought of that Carl, I rebuilt it again lol.
And cheers appreciate it! My only wish was the sound of the big white rim would have come across in the video! It was deafening! But it came across as the quietest!😀🍺
I've heard that there are small-size stars spinning about 1000 RPM, That's a miracle!
I'm confused. In the first layer, all the gears seem to be enmeshed with all their neighbors. Wouldn't this lock the system up and preclude any movement? What have I missed?
Pretty incredible designing and building. It's crazy, it sounds like a dentist's drill.
Hey thank you very much :)
I think you should have a frame to hold the reader so that it is in the same position for every run.
Hey good idea! I’ll try to rig that up, I did in the last test but it was tricky with this one :)
I wonder how much turning force you could generate through reversing the gear ratio 🤔
Umm, 625 times the input torque.
This gives me so much anxiety but is so cool at the same time
Also 3:58 did anyone see the top brace start to melt? Insane.
I think it is just the lubricant moving around due to the vibration.
That’s insane! Sounds like my old quantum hard drives!
Lol I love this moment where the wheel showing us the 1:1 speed of the motor just says "na, I won't move anymore, I'm tired..."
I feel like someone is drilling into my brain, this is insane
The fastest RPM is 600 million and that is just mind blowing. 2013, scientists at the University of St. Andrews made headlines by propelling a tiny sphere to a record-breaking 600 million rpm (revolutions per minute). This new object out-spins that by a factor of 100.Sep 10, 2018
How would you make an ultra sonic mill? Love your idea.
“Breaking the speed of sound with Lego”
This would definitely be a video I’d also watch.
just make a whip out of lego
I have never feared Legos before this video. It felt like it might explode at the end. 👍 for an awesome video!
The saw blade sounds like a real sawmill blade at those speeds!
Hard to think how much speed can you achieve only with LEGO
It seems fast but it is going to be incredibly hard to break the sound barrier as the fastest object in that 100,000 rpm scenario is only moving 25 m/s. You'll need to increase the radius significantly, which requires much more power
Hey I really appreciate it! I may have to get creative but like you say that does seem possible if it’s light :)
Hey nice thinking! I’m intrigued to see how that would work! I could add tiny tiny little weights on which could keep it stable.
I was thinking of cutting the inside of a paper disk out so you mostly just have a rim other than 4 connection points. But it may create more drag that way.
@GazR's Extreme Brick Machines! Another idea is to use a fishing line to reduce inertia but it may bend too much because of air resistance to get consistent speed measurements (unless there is a way to put it inside a vacuum chamber)
@GazR's Extreme Brick Machines! Well, a 17cm paper disc with 40 000 rpm sounds doable I guess (which is slightly above the speed of sound), anyhow, good luck with that project :)
Hi it will be very tough! The paper spun at 110 m/s btw and the saw blade 98 m/s or 220 mph.
I have got a few ideas though! :)
I love how you made that yellow wheel soin so fast it broke!
1:09 The nearest and the farthest gears do nothing as they are not connected "upstream".
6:19 Reaching the speed of sound at 102,465 rpm = 1700 rps it will take a disk with circumference of about 20 cm i.e. diameter of 6 cm. You might have already achieved that.
@Gnash R You are right. I just watched slow motion of the assembly process and noticed there were two axis stubs visible atop of the traverse bar.
At 1:09, dont the nearest and furthest gears help to distribute the torque as they are connected to the system with tiny gears?
If as suggested in some comments you'd try to break the speed of sound barrier that would make a killer collab with the slowmo guys
Impressive results! 👍
What did you use for lubricant?
He answered a post that he used silicone lube, WD40 and 5w 30 engine oil.
I'd like to know more about it, hope he answers this post with more details about the lubrication.
The Ultimate Beyblade launcher! LOL 😁😂 All jokes aside, I am _seriously_ impressed with these Lego gears! The fact they didn't just immediately strip each other of their teeth, or just fracture right off the axles is astonishing!! Way to go Lego quality control 👍
Absolutely amazing, especially for a plastic Lego set.
This is crazy! And incredible. Wouldn't you be able to reach even higher RpM if you didn't have the "showcase gear" due to lower energy losses?
the showcase gear is 1:1, it uses less than one 625th of the systems torque, youd get something like 100 extra rpm by removing it
the reason the top cog made such a difference is due to the 1:625 gearing
Looks like I got what I wished for :D
I hope you didn't get hit by the flying lego pieces.
😀 I actually took some care this time! Eye protection etc! It was quite intimidating especially that old white wheel!
The sound was deafening but it didn’t fully come across on the video :)
at 3:40, the outer edge of the grey pully experiences around 66,000G centripetal acceleration at the max rpm.
Bro it's amazing, many many thanks to u for all your effort ☺️☺️👍👍
I love watching engineers with wayyy to much freetime
Would be cool to see a soft object (maybe like some play dough) get spun super fast just to witness the sheer destruction. Also what would happen if you spun some random objects that fast (like a lego wheel or maybe the saw that you used)
Also for the breaking the sound barrier thing maybe you should try a stick instead of a disk that way you might actually make a sonic boom (maybe, don't rlly know if it would work but it's worth a shot). A stick is lighter, and if it's the same lenght as the disk is wide they would both reach the same speed. Though maybe the stick might create extra drag, which might negate the whole it being lighter thing. Also also, whatever you spin is gonna be pulling a lot of G's. It's gonna have to have a VERY high tensile strength and I don't think plastic would be able to handle it
@Egerit cheers I’ll give it ago. One issue could be the axle just twists as the speed increases. Will be interesting :)
@GazR's Extreme Brick Machines! If the line's kinda long, you wouldn't have to spin it that fast. Now whether you end up doing it or not, that's up to you but with your skills (and your vast supply of lego motors it seems) you totally could I think
Hey there cheers for that! I wish I had a better camera to film stuff like that! So far I can’t find one within budget!
I have tried something like a stick and even though it was 1-2mm wide the drag was overwhelming!
Im wondering if something like a tin foil disk would work!
I do have this tiny nylon line which is just about invisible to the eye I could also add a little glue to the end to give a little weight!
Will be interesting, personally I don’t think I’ll do it.
This look dangerous AF at high RPMs 😱
Even if it's made out of "just plastic"
5:20 I had to think of that helicopter song.
What I would try, just because I'm that kind of person, is to attach a CD to the output and see if you can spin it fast enough to fly apart.
Amazing! I want more of this stuff 😛 I have subscribed 👍🏻
Thanks for the warning about the high pitch sound 👍. I lowered the volume and disabled the sound completely later - this way i enjoyed your video very much 😁👍