Spinning a Lego wheel Over 100,000 RPM! 4K

[@aSpyIntheHaus]

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

[@nathandamgaard3227]

he definitely is. In one of the tests, when he stops it the gear spins the other way a little. That's from the axles twisting up under load, so when the load is removed they act like a spring and spin the gear the other direction

[@lucyhartmann2082]

Some time ago I watched a video, by Brick Experiment Channel I think. He used a steel axle for heavier workload

[@jacobleeson4763]

@@lucyhartmann2082 steel axle isn’t enough. The axle will just strip the gear and spin without the gear spinning. Need steel gear as well

[@siggihero1]

Im really impressed as well, but one of the problems i see. The tesla turbine was far too efficient because no material would hold together at Such high speeds. So i Wonder if he Will be able to break the sound barrier. Pls letme know what you guys think

[@fireboat9063]

If he spins it fast enough while spreading all the torque possible, it may be possible to do it before the axles / gear die

[@gibbled0]

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.

[@rigdigwus]

lmao the tape won’t influence shit

[@gibbled0]

@@rigdigwus Let's say the tape has a mass of 0.1g and has a center of gravity 1mm away from the rotation axis (since it's wrapped around the outside of the tube instead of being a point mass). 100,000 rpm converts to 10472 rad/s so the centripetal force on that piece of tape is (10472 rad/s)^2 * 0.0001 kg * 0.001 m = 10.97 N or 2.47 lbf. Assuming the rod it's spinning on is perfectly balanced, that means this piece of tape is constantly pulling that rod to one side with ~2.5 pounds of force at the tip. That's quite a lot of additional friction to overcome at the bearing interface, not to mention vibration.

[@CptEric]

@@rigdigwusAmerican moment

[@GamingWithNikolas]

​@rigdigwus you clearly have no understanding of physics.

[@sigmamale4147]

@@gibbled0 lol you think lego gears are balanced from factory ?

[@rs37_]

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.

[@GazRsExtremeBrickMachines]

Hey there cheers! I really hope to achieve this! Unfortunately I don’t think the thing spinning can be Lego unless I use a Lego sticker lol :) I think it will have to be something ridiculously light! I’ll add some more motors and definitely try!

[@rs37_]

@@GazRsExtremeBrickMachines Yes, for the spinning thing I would also use something that is not lego, except maybe the lego stickers, that could also be a good idea. It is also important to use as few gears as possible to reduce friction, maybe arrange the motors differently, like the motors in the 1:1 Bugatti Chiron.

[@Haagimus]

Found the engineer!

[@GazRsExtremeBrickMachines]

I had to use all those gears unfortunately! If I didn’t have 8 yellow input shafts the axles at the bottom would completely twist and break when using the 1:625 ratio. I filmed the assembly after the test and there still is a bit of twisting on those yellow axles(I’m not sure if you can see it on the video but one was bad) The amount of force/torque to move the 625 ratio overwhelms the axles! I’ve seen the Chiron build and I can only think it’s because they’re the PF L motors which have a lot less torque but spin faster. Also most of the gears are in play when the torque is extremely high so friction has little effect especially with the oil etc . However I realised the last 2 sets of gears at the top I could just use a single cog instead of doubling up as that would reduce friction there quite a bit :)

[@waldolemmer]

@@GazRsExtremeBrickMachines If you use a long string the tip should reach the speed of sound

[@michellee8369]

It’s called precision toolmaking and design I am surprised no plastic melted on the experiment. Well done

[@TsunauticusIV]

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.

[@Robinxon]

How do you even measure that :D

[@AiOinc1]

When will Lego reach this

[@GazRsExtremeBrickMachines]

When you’re feeling proud of 100,000 and then you read this lol :)

[@razvan_yon]

Do you think how many hp this will pull of?

[@GazRsExtremeBrickMachines]

At a guess a lot less than 1 HP lol. Whilst these motors offer great torque as they’re geared down once you add some gearing like here you realise just how weak they are! I guess it’s due to the power supply more than the actual motors themselves though! :)

[@pnutonium]

Legends say: The piece that flew away is still spinning to this day

[@computernoise2209]

"Hey, can you come over?" Not now, babe. I'm spinning at 100k rpm. "My parents aren't home." 5:16

[@Rubenotsus]

Mf

[@saaquarius1]

Absolutely Amazing!!! Now use this lego wheel to create another saw which can cut through even harder stuff

[@JazzbLu]

Who ever would have thought that you can spin a Lego at 100,000 rpms! Great work!

[@GazRsExtremeBrickMachines]

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 :)

[@crandonborth]

106,945 RPM’s is 1,782 Revolution per SECOND!!! That means on a standard 24 frames a second frame rate that gear makes almost 75 revolutions in between frames. 🤯🤯

[@Grychon]

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 👍

[@GazRsExtremeBrickMachines]

Hey Lee I really appreciate that thank you! As always :)

[@Heregoesnuttin]

I can't be the only one that's tempted to touch it while it's spinning at max speed

[@irchonite1953]

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

[@GazRsExtremeBrickMachines]

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!

[@ouzoloves]

definately with different categories (much like speed running games), with lubricant, without lubricant, which motor, how many motors etc.

[@flask9712]

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

[@3DPrinterAcademy]

@@GazRsExtremeBrickMachines I'll have to try 100k+ RPM with a 3d printed gearbox, but 20k is already difficult enough!!

[@psychosis7325]

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!

[@barneymcwhat6241]

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 :)

[@justsomeguy5628]

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.

[@joachimtheboss5326]

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

[@degtyarev708]

@@joachimtheboss5326 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.

[@kennethjanczak4900]

really great Thanks for taking the time to make the video and share it

[@GazRsExtremeBrickMachines]

Hey there thanks for the lovely comment, means a lot cheers :)

[@thatelectropig8678]

This is just absolutely crazy. Never thought stuff like this could be made from legos. Bravo!

[@jackieglade]

yo

[@GazRsExtremeBrickMachines]

Hey hey thank you for watching, always enjoying seeing you reply too :)

[@sirrichardpumpaloaf8154]

No such word as legos, it’s LEGO

[@radium4194]

I’ve built a 1:39 hand crank gear assembly, but this, this is amazing

[@notgray88]

for reference, a dremel power tool operates at around 25000 rpm. that's CRAZY FAST

[@GazRsExtremeBrickMachines]

Hey thanks for that! That’s crazy for a power tool!

[@JohnSmith-pn2vl]

not really, actually thats normal for routers etc

[@notgray88]

@@JohnSmith-pn2vl Well yes, normal for power tools, not legos.

[@slome815]

Dremel is 33000 rpm. Routers usually about 18000-25000rpm.

[@TrpleOfficial]

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

[@eastonchristensen3601]

That’s so awesome!! What an amazing design! What an amazing design too, as always man keep up the great work!

[@GazRsExtremeBrickMachines]

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 :)

[@eastonchristensen3601]

@@GazRsExtremeBrickMachines 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!

[@GazRsExtremeBrickMachines]

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 :)

[@eastonchristensen3601]

@@GazRsExtremeBrickMachines your literally so close!!! It’s crazy!

[@Jimbodawg]

The facets of the design are not only brilliant for gauging the mahine but also a testament of beauty in engineering.

[@GazRsExtremeBrickMachines]

Oh wow thank you very much for the comment :)

[@earthquake9705]

100,000 rpm equals to around 1,666 revolutions per second. The French: pathetic.

[@noel975]

“Breaking the speed of sound with Lego” This would definitely be a video I’d also watch.

[@giovform]

just make a whip out of lego

[@WarChallenger]

Well the next logical step is to rig a system to release a propeller at max speed. Imagine the height it could achieve.

[@x3onz]

propellers don't really work properly when they spin too fast

[@WarChallenger]

@@x3onz true, but you could continuously angle the propellers as they keep going faster. 100k RPM IS a bit much, but with a big enough prop, we can translate the kinetic energy along the blades as they counteract air resistance. The larger the rotor, the more momentum too, so we could see it fly upwards for a while.

[@x3onz]

@@WarChallenger actually, you'd need a very small propeller to achieve such high rpm

[@sel4785]

The propeller would require a far higher torque as well, even disregarding the weird physics you're gonna have to deal with at those speeds.

[@multi-mason]

I think the principle could be adapted to great effect. There nay sayers are just hung up on traditional propellers. A disk similar to a frisbee could be enhanced with some propeller like properties that could be tuned due high rpm. Or maybe something that employed less traditional flight mechanics like the coanda effect…

[@Malidictus]

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.

[@aultr9963]

3:45 Not gonna lie, it sound like a thing when a dentist is digging your tooth

[@samuellindskog9504]

at 3:40, the outer edge of the grey pully experiences around 66,000G centripetal acceleration at the max rpm.

[@kiwi-721]

4:03 Hi to you too Mr RPM Reader

[@DanSolow]

Honestly thankyou for the sound warning! 👌

[@DagoDuck]

5:20 I had to think of that helicopter song.

[@cutepois0n]

Bro it's amazing, many many thanks to u for all your effort ☺️☺️👍👍

[@bestbattle]

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.

[@GazRsExtremeBrickMachines]

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 😀

[@droneon8408]

That is very sweet! I was waiting for it to melt and fuse together at any second. To bad you don't my day's Legos. Lets see you open and close a little green door a hundred thousand times a second! Never stop learning!

[@joshfoley8862]

Seeing the growth of those gears at that speed would be really interesting. Nice work.

[@jbsthegamer]

Finally i see a person actually going for it with spinning things fast with technic legos.

[@ФилиппЛыков-д8е]

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]

At 1:09, dont the nearest and furthest gears help to distribute the torque as they are connected to the system with tiny gears?

[@ФилиппЛыков-д8е]

@@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.

[@Jules.11011]

That sound is absolutely terifying, I was so not ready for that. I was no joke having to grab my chair everytime it got to high rmp

[@jacobpugpoirier3350]

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.

[@GQNissanPatrol_TD42]

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! Kind regards, George

[@GazRsExtremeBrickMachines]

Hey George thank you so much for that :)

[@GQNissanPatrol_TD42]

@@GazRsExtremeBrickMachines You are very welcome!!!!!

[@firesamurai1093]

Woah... That 23k RPM swablade is gonna cut anything...

[@zarro9848]

@K A D Y 📽️ your mum

[@FrietjeOorlog]

Not spinning in reverse like that.

[@ManOverboard]

The fact that it's edge moves at 312 km/h is impressive, considering it's a lego machine

[@mickyr171]

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

[@thomastoseland7113]

I used to love this kind of thing as a kid, making toy helicopters, and at school we made a dustbin truck with a moving back end.

[@comet1062]

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

[@jandoor2068]

Wow. Great video and I am honestly surprised the plastic did not fly apart due to friction and centrifugal force at that speed.

[@TheWanderingtraveller]

Would love to see this on a table saw style design to see if it can physically cut material. Awesome job ☺️

[@xaxoon69]

It's amazing that the plastic doesn't melt, the parts must actually get extremely hot with this fast rotation!

[@RichardHammond2]

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!😎👍👌

[@GazRsExtremeBrickMachines]

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! 😀

[@watchmestress4182]

I believe the reason the hub dropped down on the Axle at max rpm was the centrifugal force was so great it caused the ID of the hub to expand outward losing grip on the Axle

[@jefftank3300]

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

[@thatguyalex2835]

Reminds me of the Slo-Mo Guys. :) They destroyed a CD using centripetal force.

[@jefftank3300]

@@thatguyalex2835 Exactly!

[@thatguyalex2835]

@@jefftank3300 Mid 2010s nostalgia right there (2015). Lol...

[@Cenozi_]

You are so positive, I love your builds! You deserve a like and a subscribe!

[@legochannel4684]

In 3:32 the wheel: RIP

[@intouchkhaoviset9155]

What happened?

[@arthur_philyppis]

​@@intouchkhaoviset9155the yellow part went to backrooms

[@jackdamons2768]

2:01 our reactor and how it sounds like, but its alot deeper and theres one bigger reactor that has a high pitched frequency of this aaand starting it up is a pain in the ass literaly xD theres like well something familiar to simon says type of game and you need 9 to start the reactor theres a key to which you can turn it off. be careful when turning it off cause the key seems to somehow over heat and break instantly.

[@ebagtz]

WHY NOT JUST GO FOR 1 MILLION RPM WHILE YOU'RE AT IT?

[@LegoLuigiTime]

Bro chill. I think it's impossible

[@anderstermansen130]

@@LegoLuigiTime gears exist bro

[@sventura-nostre1341]

​Friction exist bro

[@CPTNjames]

3:30 what happened with the piece?

[@carlbModels]

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? 👍🍺🇬🇧.

[@GazRsExtremeBrickMachines]

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!😀🍺

[@carlbModels]

@@GazRsExtremeBrickMachines 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 👍🍺🇬🇧

[@GazRsExtremeBrickMachines]

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 KZbin the more beers I need 🍺🍺😀

[@MarkHopewell]

I do sometimes query why I seem to waste so much time pursuing trivia of late. The someone comes along and roundly clears my conscience completely thus removing all self-doubt...

[@3DPrinterAcademy]

YOU HAVE ACHIEVED THE IMPOSSIBLE!!!!!

[@heathb4319]

If it was impossible...he couldn't achieve it. Just food for thought. He as actually achieved the not yet accomplished. ;)

[@Guitartistry8]

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.

[@Athens69420]

damn, I sense some torque! Have a feeling about 27 motor 42099

[@Athens69420]

Hey GaZR, the bots are all around here in the comment section please report them.

[@GazRsExtremeBrickMachines]

Haha imagine that! I am planning a 40 motor Truck soon! :) I think I’ve removed most now! I don’t get how normal comments can get spammed by KZbin but not these!

[@Athens69420]

@@GazRsExtremeBrickMachines I'm speechless now. 40? 40?! 40?!!!!!! FR🤯😱

[@GazRsExtremeBrickMachines]

It will be quite powerful lol. The plan is to pull a car or my nieces on a trailer! :)

[@Athens69420]

@@GazRsExtremeBrickMachines BREAKING NEWS: Man build electric pickup by legos appear that it is cybertruck's main competitors.

[@Brabbit1974]

I have never feared Legos before this video. It felt like it might explode at the end. 👍 for an awesome video!

[@aidanbishop7924]

With paper saw wheels that fast you could probably cut some oak.

[@GazRsExtremeBrickMachines]

I will definitely try this with the better drivetrain! :)

[@Erikffw112]

Could only be possible with a little bit more rpm and a more stable blade rather than a paper blade.

[@theonorrman7112]

its funny how you can see the lego sawblades teeth bend down because of the centrifugal force. it really shows how fast this thing is going considering that’s a relatively thick piece of plastic

[@brendenpischke6060]

5:08 Bayblade! Let it rip!

[@Unknowntraveler302]

The final evolution of Pegasus

[@GoTeamScotch]

I've never been afraid of a LEGO Technic machine before like I was while watching this video.

[@azazel5004]

I hate that sound. It reminds me of that hell tool dentists use to drill your teeth and make you reconsider your life choises

[@2teethPogZa]

Is it just me or does anyone also love the sound of the motors struggling? It sounds like some kind of an ICE in a train I don’t know where I got that comparison but it just sounds like it...

[@race-element]

It's over 100.000!

[@قَسوَرَة-ق]

How do you make something the input speed in it is less than the output speed? Manual operation without electric motor ( for example: by crank handle )

[@schizophreniagaming4058]

2:30 does NOT sound safe

[@Earthmoon373]

5:17 For a split second The top gear went up to 120,860 RPM The reason why it went up to 120,860 RPM is the top gear sinked down and hit the second last gear causing the top gear eject and it also boost the second last gear to 24,172 RPM or 120,860 RPM But the top gear had ejected before So failed attempt:(

[@greendragon8742]

It needs to launch a beyblade.

[@matavastros]

Dear god no

[@chrisparker4821]

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

[@WhuDhat]

I remember I got a Lego technic set when I was like 9, since it wasn't compatible with my regular Legos it immediately went to the bottom of the toy box, periodically watching your videos makes me regret that, and not joining robotics class in 6th grade lol, and not taking computer class in Jr high, and not joining the stem course in high-school, and all my other life choices lol

[@Father_Artificial]

wow max rpm was 222.381 MPH if the radius of the wheel was 1 inch

[@Blakeyrobinson858]

the yellow wheel: nah imma disconnect ill brb

[@marcofe82]

Really interesting video!

[@AnnihilatorCZ]

Wish we could see a thermal image of this.

[@WEK-E]

love these types of videos

[@johnmanderson2060]

Amazing! I want more of this stuff 😛 I have subscribed 👍🏻

[@shortattentionspangarage1312]

In a very rare circumstance, 6 minutes well spent on KZbin.

[@Ayvengo21]

What amaze me the most is the precision of lego blocks. Slight disproportion would ruin the whole construction at this speed.

[@Ranveer_Singh_sangha03]

damn bro that's sick

[@madDragon08]

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.

[@Sonictrainkid]

4:45 The sound of lego motors humming in harmony

[@ebolarnator1794]

Finally a KZbinr puts the motor on the other side of the gear ratio!

[@-Keith-]

The real hero is the reflective tape that didn't get yeeted to oblivion during the test.

[@melodicchronic5181]

Pretty incredible designing and building. It's crazy, it sounds like a dentist's drill.

[@GazRsExtremeBrickMachines]

Hey thank you very much :)

[@ReinkeDK]

WOW this is simply amazing ;)

[@daverapp]

The noises coming off of this thing are terrifying.

[@finallyitsed2191]

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. :)

[@GazRsExtremeBrickMachines]

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 :)

[@DerKiesch]

Since you mention wanting to break the sound barrier: Afair the aerodynamic forces start to become a problem already at mach 0.8 (so it would be good to do it in a vacuum). Apart from that, even the load from just holding together whatever you are trying to spin might be too much for plastic. It's not even easy to replace the plastic by steel or aluminium, since steel is quite heavy, so while the it can take more stress, it also has more mass that pull outward. So yeah, be carefull with this, because whatever you try to spin is prone to rapid unscheduled dissassembly - so take some protective measures for that event. We designed something for a research setup that needed to spin with 60 - 90k RPM, so yeah, I know what I'm talking about. Also: This is more or less the regime where turbopumps (vacuum pumps) are operating. Amazing machines ^^

[@FerroequinologistofColorado]

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.

[@nicholasevans8637]

Dental air drills (handpiece) rotate at nearly 200,000 rpm. It travels so fast that the diamond burr guides through tooth enamel like a hot knife through butter. But it's where the scream comes from similar to this device

[@dante224real1]

that was fantastic!

[@Davizitoh]

You were so preoccupied with whether or not you could, that you didn't stop to think if you should

[@Danol123]

5:16. He spun it so fast he created gravity with enough pressure to trigger a launch. Holy f👉👌.

[@TIZIANOFITTNESS]

con tantos motores se puede adaptar para bici electrica? porque tiene bastante torque

[@robertzeurunkl8401]

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.

[@asp1345]

I'm amazed at the lack of a bigger explosion. Lego plastic is amazing quality

[@SmartLegoSG]

I'm so impressed with your knowledge and expertise. You're clearly an expert in your field.