Making the Longest Lego Cardan Shaft
Переглядів 3,568,806
День томуBuilding and testing universal joints and cardan shafts with Lego Technic.
Chapters:
00:00 Universal Joint
01:55 Cardan Shaft Offset
03:50 Cardan Shaft No Offset
06:27 Car
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#bricktechnology
#legotechnic
#lego
#asmr
#universaljoint
#buwizz
#engineering
#cardanshaft
#experiment
@BrickTechnology 2 роки тому
Check out my newest video: ukposts.info/have/v-deo/l2eoq6BwgJWC2Gw.html
@TheRaineWitch 8 місяців тому
The fact that you go back and edit them all 😂 mad respect
@MrLevtastic 2 роки тому
Using a guitar pick to illustrate the turning speed fluctuations for people on smaller screens or if the camera didn't pick it up was a *really* clever way to do it - very cool!
@doursen 2 роки тому
I couls see it just fine on my phone, but the sound somewhat helps
@DasSparschwein 2 роки тому
I think that something similar was also used in an old kardan shaft explanation video by ford or some other car brand in the 50s.
@joratto2833 2 роки тому
@@DasSparschwein I remember the same video. It’s a timeless method.
@AdamHowellProvo 2 роки тому
I wish he had contrasted that with a CV joint.
@bando404 2 роки тому
Is that really a guitar pick? It’s huge…
@GunGryphon 2 роки тому
Watching the motor slowly die as there were more and more sections added was heartbreaking.
@jameschamberlin3926 2 роки тому
Yeah
@bdscooting5312 2 роки тому
Ye haha
@liamernst9626 2 роки тому
And motorbreaking
@BrokenCurtain 2 роки тому
This channel should be renamed to "brick torture".
@flxz77 2 роки тому
It felt like everything was going to explode at any moment
@epiccollision 2 роки тому
Thank you for perfectly illustrating how small losses in a mechanical chain can add up and cause failures.
@Marisad 2 роки тому
8:52 We will miss him. He was a great man and a good friend. Rest in Peace
@kasuraga 2 роки тому
This is a great example of why it's important to phase your universal joints properly in all use cases.
@villageblunder4787 2 роки тому
Or use CV joints!
@SolarWebsite 2 роки тому
@@villageblunder4787 Yeah exactly! Because your output shaft may me nice and stable, but the intermediate axle not being at a stable speed will be noticable at higher masses/higher rpms.
@bonovoxel7527 2 роки тому
Oh thank you, now I know what to search the internet for in order to understand what's the point of this video.
@UNSCPILOT 2 роки тому
I didn't even know this is a problem but will deffinitly keep it in mind if I ever need them for a design
@kasuraga 2 роки тому
@@villageblunder4787 Lmao of course, or use cv joints. CV joints are definitely better but in situations where only UV joints are gonna be used, definitely phase them properly or you're gonna have a bad time
@alexludwig9099 2 роки тому
The issue with your "no offset" design is that there is still an offset, its just a very minor one. Because its spiraling outward, the angle of change is not exactly 90 degrees, but slightly larger. Over 60 iterations, that small angle has added up to a large offset.
@kauhanen44 2 роки тому
wouldn't it still be the same angle since they are concentric (almost) regular hexagons? it's just slack in the joint that's accumulating and causing the intermittent rotation.
@KimmyR3 2 роки тому
@@kauhanen44 nope, and it's not actually the offset that's causing the 'fluctuations' but the angle of the joint. the greater the angle, the greater the effect. in the real world, a CVD (constant velocity drives) solves this by a number of ways.. one of which is by introducing another universal joint in the same space. in the lego example above, it's basically 2 (or more) universal joints every time a "turn" happens..
@StefanNoack 2 роки тому
No. You can see them move all in perfect sync. However friction is fluctuating and therefore the motor speed does not remain constant.
@ThePapino134 2 роки тому
also all the inks seem to be in the same state. every rod should be ofset from the precedent to mitigate the torque problem on the angle offset
@allenlark 2 роки тому
you could maintain theoretically perfect 45°/135° angles and still spiral out just by changing side/shaft length. so this isn't necessarily the reason
@kummer45 2 роки тому
I can't explain how awesome this video is. It's literally an engineering class gone right. This is the best way to learn something complicated having fun with it without spending lots of money.
@anongentry2269 Рік тому
Total Mech noob here, is there a real-world purpose of this level of iteration with a Cardan Shaft, or is this just a way to demonstrate the cascading increase in offset?
@zimidiaz1015 Рік тому
@@anongentry2269 mech noob here too, but I dont think there is any feasable real world purpose of this level of iteration of universal joints, one or two at a time, maybe, even three, or four if you really want to stretch it, I can see, but 60? thats just ridiculous
@Kolonol1 Рік тому
@@anongentry2269 you've never driven a 4 wheel drive vehicle with completely independent suspension all the way around? Maybe a Mercedes? Or a dune buggy? They all have some/ a lot of these concepts
@tomkampfraath 2 роки тому
5:00 The electromotor:”THAT’S ENOUGH SLICES!!”
@tacomas9602 2 роки тому
Universal joints are something you have to watch on farm equipment a lot. Also driveshafts and such!
@JayRussellDuramax 2 роки тому
I'm not sure what I enjoyed more, the demonstration, or all of the hilarious ways the motors, gears, and other bricks popped apart under the stress! Haha! Also, once you got to 18 U-Joints on the car, the drivetrain sounded like the beat to a Johnny Cash song. Hahaha!
@jlinkous05 2 роки тому
Unreleased Cash track: I Walk The Line of Offset Universal Joints
@JayRussellDuramax 2 роки тому
@@jlinkous05 I could see Weird Al Yankovic doing something with that... Haha!
@basilbrush9075 Рік тому
Yee haw, like a gallopin stahlyun
@aaronfoster5680 Рік тому
And it only took One Piece at a Time!
@user-rx7og5on6y 2 роки тому
For the students of vehicle engineering, the unequal velocity universal joint is really kind
@malinhiles 2 роки тому
I seriously appreciate how you kept the raw audio. You actually see and hear everything as it happens, no janky ass music covering everything up lol. Great vid!
@SuperBodoque 2 роки тому
the sudden gear grinding at 5:40 kills me. it also sounds like a gau 8
@stopmotionanimations1 2 роки тому
That moment was like a jump scare for me, especially since I had my volume on almost max with headphones on.
@natan6218 2 роки тому
or sudden, explosive diarrhea
@CocoNoCo Рік тому
Sounds like a strong, crispy fart.
@Dinginkan Рік тому
@@CocoNoCo ur dad fart
@yerpy-nya-furry 11 місяців тому
@@CocoNoCo exectly
@alexlik4197 2 роки тому
Wow! I had no idea that the offset thing was even a thing! I learned something new today. Thanks!
@gameknight.thump1 Рік тому
i cant even tell whats different between the offset and the not-offset XD nvm i just didnt notice it at first bc me dum btw we have the same first name :o
@minidude993 Рік тому
@@gameknight.thump1 I literally took 15 min trying to figure it out. Had to take screenshot to go back and forth and everything lol all makes sense now though
@jaredchampagne2752 Рік тому
@@minidude993 can you explain it to me? I still don’t get it, the design looks the same. Offset and no offset...I feel so dumb.
@nkt1 Рік тому
@@jaredchampagne2752 Look at the middle shaft @1:11. With no offset, the C shapes on each end are both aligned.
@olafhoftijzer9571 6 місяців тому
What is it used for tho?
@kayciestraub Рік тому
7:16 *insert train horn here*
@MixZTitaniumDubstep 2 роки тому
5:41 that abrupt grinding noise i think is funny.
@al-asadi 2 роки тому
That optical illusion @ 3:50 is amazing!
@nagualdesign 2 роки тому
What optical illusion?
@Gwalchgwyn 2 роки тому
Oh, wow. Did not notice until I stared at the centre of the image for a few moments. Cool.
@allergictoasphalt11 2 роки тому
Oh yeah it is!
@Gman556 2 роки тому
@@nagualdesign When the axles are spinning it looks like the whole structure is slowly expanding outwards
@nagualdesign 2 роки тому
@@Gman556 I don't see that myself but thanks for explaining.
@sliceofbread2611 2 роки тому
at 4:30 you made a very trippy optical illusion, it looks like the joints are moving outwards
@Metalwrath2 2 роки тому
5:11 warthog fires its guns
@helpmereach45ksubswithoutvideo 2 роки тому
These videos makes our days better
@STA-3 2 роки тому
No, i won't help you reach 31k subs without any videos.
@crazygt850 2 роки тому
@@STA-3 savage
@arnoldrimmer9161 2 роки тому
I would most certainly agree with you on that!
@mansikkamies9146 2 роки тому
Bot
@rs37_ 2 роки тому
I loved the short stop motion animation at the end, great detail.
@nonpondo_ Рік тому
It scared the hell out of me
@allhonesty848 2 роки тому
When I went to automotive mechanic school, they used a lego model similar to this to demonstrate automotive drive shafts and problems that arise with them.
@Bear551590 2 роки тому
So much respect for the time and effort that went into frame matching the transitions at the 4:40 mark.
@ArdePiertje 2 роки тому
Nobody cares tho the video is still lit
@jo-gu4ln 2 роки тому
@@ArdePiertje i cared
@STA-3 2 роки тому
@@ArdePiertje i cared
@TrueWolves Рік тому
@@ArdePiertje I cared.
@RepressedButton Рік тому
I cared
@Jayderzomb 2 роки тому
I‘m very into mechanical engineering, and i like to think that i know much about it but this is new to me somehow i never thought about this, thanks for spreading information mate!
@EstorilEm Рік тому
Same! Still scratching my head and simultaneously feeling kinda stupid for not realizing this.
@jibs2861 2 роки тому
3:58 Now I know how to make the chromatic scale with Legos!
@half_time Рік тому
Wicked effect. Looks like the whole octagon is growing in size because of the spin. Love the illusions. 3:55
@toothlessblue 2 роки тому
4:15 wild optical illusion where if you stare in the centre it looks like it's getting bigger - besides him adding more connectors ;D
@datawsomeduck3383 2 роки тому
I like how whenever it broke it went from sounding like a engine with no fuel to a full rpm v12
@builder1013 2 роки тому
4:55 My computer when I put shaders on my Minecraft world
@RailsofForney 2 роки тому
8:21 GUY: M o v e . MOTOR: But I don’t wanna! GUY: M O V E MOTOR: O-K! *MOTOR GOES SPEEEN*
@dorabora2936 Рік тому
Honestly this is a brilliant demonstration for how universal joints work, I’m actually studying as an engineer (focused on cars, particularly in Motorsport) and we had this explained in class but even with the animations they had I struggled to intuitively understand how exactly the fluctuations work. This demonstration finally made it click, so thank you for this excellent video!
@CharliesName 2 роки тому
I always think to myself when I watch these videos. "Surley this is close to the limit". Then I look at the timebar and it's always less then 50% of the video. You really push these lego experiments to the limit and it's awesome!
@randomgamer4048 Рік тому
8:30 I swear this is the noise printers make
@BloodyMobile 2 роки тому
I'm always impressed with the unexpected failure points. Also with how some of these setups sound like low rpm diesel engines.
@tenorHarlequin Рік тому
I love that you show the issues in your device iterations. It's really healthy for upcoming engineers and programmers.
@nickmaclachlan5178 2 роки тому
I'd have been interested to see if some lubrication would have made it any easier to run those 66 U/J's? This experiment also perfectly displays the reason why cars need to have constant velocity joints in their axles and driveshafts. Can you imagine having to drive down the road with your wheel speed fluctuating like that? Lol.
@N-Kryptic 2 роки тому
Its called driving a Jeep lmao
@scopie49 2 роки тому
Lubrication would definitely help. Brick Experiment Channel has occasionally added lube to some mechanical tests and it increases the RPM and helps preventing overheating/melting of the plastic parts. Some would considering adding lube cheating though since it's involves using something outside the world of Lego itself. I'd still be curious how far it could go because there is a lot of sources of friction adding up throughout this model.
@florisjaaltink3455 2 роки тому
This is brilliant, I've been working on a project using these joints and so far this is the best example of how they behave!
@shangerdanger 2 роки тому
There was a technic piece from the 90s that was a U joint inline with axle
@olafhoftijzer9571 6 місяців тому
Shanger!
@conkerthesquirrel4331 2 роки тому
UKposts algorithm has never done me wrong. Happy to have found your channel! These demonstrations have so many applications outside of Legos. They get my brain thinking differently about common problems I run into at work/home/other projects. Great stuff!
@Legominder 2 роки тому
Nice! I knew of this effect but making a chain reaction of the oscillation through the axle is great!
@Only_Henrik 2 роки тому
Wow great ways to demonstrate the importance of no offset! also very mesmerizing!
@GilliamFlebus Рік тому
It's really cool how you kept matching the motor rythme while adding more joints. Such a subtle detail that seems completely effortless but isn't.
@whitepage8018 2 роки тому
6:53 so thats how turtles are made
@riclozano 2 роки тому
wait... I wasnt the only one to think that this sounded like old town road right????? 6:27
@poobutington207 2 роки тому
Litterally rhe best type of videos, jus straight content, no commentary, no music. love it man!
@FNBonkers 2 роки тому
Nice vid, it demonstrates the oscillating motion of the shaft when you have a difference in angle from one end to another, and of course the huge loads on the bearings. that's why you can't change the drive angle with a traditional cardan shaft, just a parallel offset.
@cartsoel9652 2 роки тому
It’s cool how the sound changes every time he adds something. I enjoyed observing the whole process.
@chessie2003 2 роки тому
The use of a pick to demonstrate rotation speeds is inspired!
@thetubeboi6991 2 роки тому
He didn’t say it wasn’t.
@jacknesbitt240 2 роки тому
@@thetubeboi6991 inspired is another word for very smart/creative
@thetubeboi6991 2 роки тому
@@jacknesbitt240 kk, sorry.
@JayAlastor Рік тому
7:05 sooo my mind was working right when i was thinking "HEY isnt this used for differentials in cars??"
@plymouthmechanic3423 2 роки тому
Very pleasing to see how much torque you can achieve with Lego! Every time you thought to solve the weak spot, the following weak spot appears. Very nice video!
@MazonDel 2 роки тому
That poor LEGO man fell into the mechanisms and was lost to us. A moment of silence for their sacrifice in the name of engineering.
@Calthecool 2 роки тому
Imagine a GBC module that moves the balls to the center using a mechanism like this.
@jeradblazek677 2 роки тому
Man, Lego's have definitely gone from just being a child's toy, to a tool for aspiring engineers since I was a kid!!
@sirrichardpumpaloaf8154 Рік тому
It’s LEGO, no such thing as LEGO’S
@jeradblazek677 Рік тому
@@sirrichardpumpaloaf8154 Lego my eggo😉
@DuckInGameStop Рік тому
5:10 "oh cool they changed the gear ratio, it'll probably run smoother now" *grinding noise directly from hell*
@STMNewEngland Рік тому
that was hypnotic. also this has to be the best demonstration of both mechanical loss and U-joint phasing. i would love to see one with Constant velocity joints.
@eyeseaewe1736 2 роки тому
Great video as usual. I never knew the phasing of universal joints could have such an effect.
@danielfruhauf5304 2 роки тому
Didn't expect a video so soon. Very cool!
@thomasgougeon9804 Рік тому
That poor motor is like: I canne do it Cap'n!! I don have the power!!! This was super fascinating and the guitar picks to show the offset was a great idea!
@jackhewitt7902 Рік тому
2:46 hey the car won't start!.
@mystic7462 2 роки тому
Alternate Title: Destroying More Lego Using More Lego
@koejoe 2 роки тому
I’m always amazed by how much I learn on this channel.
@fen4554 2 роки тому
5:57 I had a physical reaction to this
@AngelloProduct 2 роки тому
A weapon to Surpass metal gear 8:44
@davesendit1348 2 роки тому
Very good video. Very interesting. I have a good idea for the next video for you. What if you made a lego lathe? Maybe it could cut styrofoam or maybe even wood. It would be really neat if it had power feed and everything
@BigPanda096 2 роки тому
No obnoxious music, just the beautiful sound if Legos and Lego motors operating and being put together. I could just listen to this to fall asleep without even watching it. Idk why. Thank you for not.bombing the videos with some obnoxious music. Idk why people think you habe to employ the use of wild sounds and lights to keep attention. If your content is worth paying attention to, then I will. If you have to use sensory overload just to maintain attention, then you aren't making good content. This, this is GREAT content that is self attention grabbing. Kudos and very well done.
@sunnivathebest846 Рік тому
I like how the motor with all the universal joints sounds like laughing, and it sound more demonic when more are added
@in1 2 роки тому
As always, another great video! Did you consider a worm gear at the motor?
@BrickTechnology 2 роки тому
Thank you, the gear does not matter at some point, the bottleneck are the first 1-4 joints, they give
@theyeetus1428 2 роки тому
Exactly what I thought.
@DantalionNL1 2 роки тому
@@BrickTechnology Could it be better if there would be lube added to the shafts? Almost looks like a friction issue.
@_g7085 2 роки тому
I went back, and forth, back and forth. Many times. I never saw a visual difference between "offset" and "no offset". What did I miss????
@_g7085 2 роки тому
@@tusharxo ahhhhhh, now I see it. I was looking for a piece added or removed, or perhaps a different piece. Rather than the two ends of the middle shaft being parallel, they're perpendicular now. Thanks!
@jasperfk 2 роки тому
@@_g7085 That really helped, thank you!
@aaronandannelogan Рік тому
Clearest explantation I've ever seen (literally!) of why a universal joint is not a constant velocity joint. Subscribed.
@danieldey 2 роки тому
I never knew about fluctuations like this, and the guitar pick use was awesome!
@xitcix8360 2 роки тому
Those lego pieces went through a lot of pressure, I'm surprised none of them broke
@swedish_shitpost7756 2 роки тому
4:20 why does it look like its getting bigger?
@SeLLeks 2 роки тому
There is a really fascinating visual illusion effect if you watch the middle of the building and move your eyes around the joints. Looks like it all expands outwards.
@nkronert 2 роки тому
I love the construction "time lapse" edits. Lots of work, but great results!
@notveryartificial4486 2 роки тому
The live demonstration of "the more moving parts it has - the less precise it operates" even with no offset the resulting output has quite an irregularity
@kevinsmith3854 2 роки тому
I appreciate all the editing with this build.
@cyootlabs 2 роки тому
Now that I've been staring at the two frames between the cut where the changes are shown for three whole minutes and finally figured out what "offset" meant, seems simple and it makes sense.
@bobkaster1 2 роки тому
I am so glad I watched this. I've been seeing the same fluctuation in my 42055 Bucket Wheel, now I want to go back and look at the U-Joints in the power system and see just how I have them positioned.
@branak 2 роки тому
Had to stop at 6:21. This is pure soul torture 😢 😭
@thehannomeiring 2 роки тому
I love how you show the mistakes and failures, this is super awesome, learning alot
@xhag1x 2 роки тому
Clearly the smoothest ride ever built for comfort
@Redchrome1 2 роки тому
This is in the finest tradition of Mad Science. 1. Do something silly 2. Try different variations 3. *Write it all down* (or make a video) 4. Carry it to its absurd extreme 5. Find out where it blows up.
@phystem1 2 роки тому
I have no clue on how machines work, neither have an idea on mechanical engineering. But still I find this video fascinating. What I got from the video is, you need to configure things in a certain way to increase efficiency
@XperimentorEES Рік тому
Thanks for demonstrating the inherent flaw with universal joints, though I gotta admit the sputtering was strangely funny.
@SimonLaudati Рік тому
The initial offset explanation is exactly the reason for the cracking noises of the Technic Defender
@DracolegacyOfficial 2 роки тому
this video is the perfect example of why CV joints are so great
@kentslocum 2 роки тому
I learned a lot about universal joints--thank you!
@512TheWolf512 Рік тому
Before electricity, we actually used to transmit power over great distances with similar physical systems Look it up, it's fascinating
@El-Burrito 2 роки тому
I love it when the whole thing pulls itself apart. Such a cool video!
@AaronCZim 2 роки тому
The "Cardan Shaft No Offset" movement creates an optical illusion that the device is growing in size. It subtle, you'll have to look for it.
@reggieflo 2 роки тому
Using that guitar pick? genius. That slow motion at 4:06 is a subtle, yet well deserved flex. What a dope video
@Dean24691 2 роки тому
your channel is a fantastic example of what can happen if things are not fixed correctly. reaction forces create a mess
@MM. 2 роки тому
Fascinating. It's interesting how your test is like a ring-shaped conveyor that would transport objects from all directions to its center. I wonder if something like this exists, although I can imagine that in most instances, you'd simply use a funnel and let gravity do the work.
@BARUtubbig Рік тому
7:42 love how you can see the rotation move through the loop
@omnicutelcatl5281 Рік тому
I see complicated looking lego contraptions, i click. its simple.
@ihavetwofaces Рік тому
6:15 - father please, I cannot! You ask too much of me!
@Mrbubz-xl2wb 2 роки тому
I bet that people who do this sound really nerdy but are still fun to hang around and sometimes being “nerdy” isn’t a bad thing
@crawler0095 2 роки тому
i never knew how much i needed a lego asmr
@shanepowers7566 2 роки тому
Bravo. The saying goes ‘You can’t teach an old dog new tricks’. You just did.
Жекич Дубровский
Переглядів 1,9 млн
Жекич Дубровский
Переглядів 1,9 млн