Oh really. So you would be using the sound of a credit card, instead of tachos or other sensors and some useful display? Where did you get an engineering degree?
@@Bigalinjapan If my words somehow implied that you should put the demo rig into a road car, I've failed in communicating. Or maybe my wording was just fine. It's an awesome demonstration. "De-mon-stra-tion"? To demonstrate? Doesn't matter where you get your degree from if you can apply things you learn constantly. A degree is just an entry ticket into whatever field you love. Real learning happens once you're actually in the field. An essential concept in teaching (and therefore learning) is to "Demonstrate" something.
@@vikassm If we are talking about a demo on an engineering topic for engineers or at least soon-to-be engineers, we should apply the appropriate level and by that, also set the expectations to engineers to an appropriate level. Listen to the card make brrrt ist kindergarden child play, not engineering.
@@vikassm "Can you do better?" is pretty lame whataboutism if there is no other argument at hand. Yes, I can do better in directing and demanding. As an engineering supervisor, this is the job. Not to be able to carry out but to lead the way. Which ones do you want to belong to?
when I clicked this video in my recommendations I was but a child who thought u-joints solved everything, now I am a man who knows their limitations. A man's got to know his limitations
I mean when the OEMs set their drivelines up to be 100% straight theres gotta be some logic behind it... Something I have picked up: There is ALWAYS a reason to why something is set up or build the way it is.
@@alouisschafer7212 Wouldn't be so sure I've seen OEMs design trash before. I got an ebike from China with a 20mm through axle fork and an adapter for a M12 threaded axle motor. It was sold like this as a kit. Why is this a problem? Well, as far as I know, electric motors need electric power. And if your dropout is 20mm with no thread and the motor itself has an M12 threaded axle, you're forced to use their wacky "20mm diameter to M12" adapter covering each end of the motor axle to even mount it. No way for any cable to come into/out of the motor axle. So it was literally impossible to mount and connect. Again, they made this kit specifically and sold it like this! I contacted the vendor, he admitted this and gave me a partial refund...so never depend on designs or think you can't improve stuff...
@@ccllvn They knew it was gonna be shipped to the U.S. as the major market, and knew nobody would take the time to complain about the design and go through trying to get ahold of somebody in a different country for a refund so they rolled with it. For every one person that took the time to ask for a refund or a fix, 99 people didnt, they just said screw it, I'll deal with it.
Hello Sir, i have a question about this topic if you wouldn't mind. If the Input and Output arent in the same plane but still at the same angle, could you still get a smooth output by adjusting the phase accordingly? I appologyse for my bad english, it is not my first language.
@Santino Finley This is your girlfriend. You think I wouldn't find out you poorly endowed minute man boy child? I'm with Chad now. Have fun with that old account.
This is RUclips University for you. Interview manager: So I see that you have experience doing x. Yes, during my time at z, I accomplished. So, I see here that you have a degree. Where is RUclips, and tell me what your biggest accomplishment that you completed, while studying there.
I qualified as a Jaguar/Rover technician in 1986, leaving the bench shortly thereafter. This is the best demo of a drive shaft and UJ phasing I have ever seen, it should be part of every course!
Having repaired and built hundreds of driveshafts from very small to very large , I did learn in the 1970s that the input and output shafts don’t need to be parallel. The angle of each U-joint must be the same though, and they must be inplane with each other. GM did this with the double Cardin U-joints they used in their upper end cars. This is, though, by far the best demonstration of U-joints I have ever seen.
In my youth I spent a lot of time out 4 wheeling with others. You'd be surprised at how many of them (back then) didn't know how to PROPERLY raise a truck body/engine and set up the drive train. Saw a LOT of broken yokes out on the trails that came back to this... GREAT VIDEO! Thanks!!!
I just fixed the PTO water pump driveline on our water truck myself because no one would believe me that the shaft out of phase was the cause of multiple pump shafts breaking. If I knew about this video, the boss would have made the guy who put it together out of phase fix it. At least if I show them the video now, they won't be able to say "it's just a coincidence that we haven't broken another pump shaft in years". I don't want to wait years to prove I'm correct either. Thank you for the "seeing and hearing is believing" video!
Im a retired mechanic , found this most interested , learnt somthing . I made it a habit to mark everything . Wheel removal>mark it..brake drum>mark it and so on. In some instances it payed off , eliminating guessing & wasting time . .
So great. Never had "need" for this info. But!, after a lifetime of movie car chases, (when camera aimed at undercarriage) I now have Much clearer understanding of how those crazy looking tube-connections make a vehicle "go". It's the smallest of things, but a sincere thank you.
And this perfectly describes why I can't become an engineer, it's fascinating, but I, for the love of life, couldn't memorize half the terminologies, and usually the way I would describe all of this would be more similar to how a 5 year old describes the movie they've seen a week ago :D
@@ratchetguns Yeah, I'm aware of that. Just always sucked at math... I get the idea of it, how it all works in my head.. But once you throw in the numbers, that's when it all starts sounding chinese to me (No offense to Mandarin or Cantonese speakers, just merely pointing out that it's a very exotic language)
I knew what the theory of universal joint velocities was, but I could never completely understand it. This totally clarified it, brilliant demonstration
Nice demo, this really puts to bed all of the incorrect information you hear about engine, rear end, and drive line angles and what to do about harmonic vibration problems.
I never thought about that before / good info!! It would be so easy to have a driveline issue after reassembling and completely be completely puzzled. Then have the problem mysteriously go away after taking everything apart and reassembling.
please oh please post more videos. There is a glut of videos on every subject, but the approach and demonstration from this 2012 video is still far superior to the others on this topic.. post more videos....!
Thanks for an amazing explanation of this....I often wondered what that "constant velocity joint" on my 73 chevy was all about...Especially when the driveshaft only lasted about 70K miles before that joint started "singing" and had to be replaced....
This is the video every project car builder needs to see to solve their driveline vibration problems. Gotta match your angles at the tail shaft and pinion.
Fantastic video. I knew that there were alignment necessities with two u joints but had no idea how to visualise it. Once saw a raised pickup with huge wheels and to get the driveshaft to connect to diff at such a sharp angle they used two cmpletely floating U joints. No mounts. didnt see how they moved it but looked a complete disaster.
I bet someone tried this experiment first and came up with some crazy overly complex method to display how the rotations are not in uniform using a bunch of charts and graphs. This guys like “just slap a credit card on it”. The best engineers come up with the simplest solutions.
wow, never knew the physics of u-joints would create a hi - frequency speed modulation for the output. Thanks so much for uploading, and the great visual aids!
Ah! I understand now why the velocity of the middle sprocket changes when the shaft is jointed! In the perspective of the middle section, when the input shaft turns, the rotating "circle" moves as well, changing the perspective of the circle, therefore making it more ovular than circular.
![BLACK BAG - Official Trailer [HD] - Only in Theaters March 14](http://i.ytimg.com/vi/Du0Xp8WX_7I/mqdefault.jpg)
The card trick is GENIUS!
Just imagining realizing that you've been using your credit card the whole time... welp, there goes that!
have you never installed card to your bicycle for *motor* sound from the wheel?
@@FodderMoosie Haha my chip stopped working recently so that's exactly where my mind went!
@@evolevil1 Yeah, but this is a very creative and useful application of the card.
Yeah it's a genius trick and all but what's with the weird atm?
I'm an automobile engineer. This has got to be the best demonstration of u-joints I've seen!
Thanks for the upload 👍
Oh really. So you would be using the sound of a credit card, instead of tachos or other sensors and some useful display? Where did you get an engineering degree?
@@Bigalinjapan If my words somehow implied that you should put the demo rig into a road car, I've failed in communicating. Or maybe my wording was just fine.
It's an awesome demonstration. "De-mon-stra-tion"? To demonstrate?
Doesn't matter where you get your degree from if you can apply things you learn constantly. A degree is just an entry ticket into whatever field you love. Real learning happens once you're actually in the field. An essential concept in teaching (and therefore learning) is to "Demonstrate" something.
@@vikassm If we are talking about a demo on an engineering topic for engineers or at least soon-to-be engineers, we should apply the appropriate level and by that, also set the expectations to engineers to an appropriate level. Listen to the card make brrrt ist kindergarden child play, not engineering.
@@Bigalinjapan Apparently you can do it a lot better, let's see your demo then.
@@vikassm "Can you do better?" is pretty lame whataboutism if there is no other argument at hand. Yes, I can do better in directing and demanding. As an engineering supervisor, this is the job. Not to be able to carry out but to lead the way. Which ones do you want to belong to?
when I clicked this video in my recommendations I was but a child who thought u-joints solved everything, now I am a man who knows their limitations.
Another piece of knowledge that will not help any guy who want to impress girls
@@pflaffik so what?
@@pflaffik is that your goal in life?
@@pflaffik if the lady's don't find you handsome, at least they'll find you handy.
when I clicked this video in my recommendations I was but a child who thought u-joints solved everything, now I am a man who knows their limitations.
A man's got to know his limitations
"Honey, did you grab some milk from the store?"
Fella: "no I didn't"
"Why not"
Fella: "debit card wouldn't work for some reason"
Bwa ha ha
🤣🤣🤣
Hahahahahahahaha
I don't get it????
@@bill091086 he messed up the card playing with the drive shaft device.
"A constant speed into the driven member" I finally have my new pick-up line.
😂😂😂😂😂
Funny you
The motion of the ocean is directly proportional to the angel of the dangle... Provided the heat of the meat remains constant.
@@kennethclifford1863 Angles are so angelic.
Honestly, that would probably only reduce your chances of drive-line vibration.
Just A few simple facts that elude almost every "custom" 4x4 shop.
I mean when the OEMs set their drivelines up to be 100% straight theres gotta be some logic behind it...
Something I have picked up:
There is ALWAYS a reason to why something is set up or build the way it is.
@@alouisschafer7212 Wouldn't be so sure I've seen OEMs design trash before. I got an ebike from China with a 20mm through axle fork and an adapter for a M12 threaded axle motor. It was sold like this as a kit. Why is this a problem? Well, as far as I know, electric motors need electric power. And if your dropout is 20mm with no thread and the motor itself has an M12 threaded axle, you're forced to use their wacky "20mm diameter to M12" adapter covering each end of the motor axle to even mount it. No way for any cable to come into/out of the motor axle. So it was literally impossible to mount and connect. Again, they made this kit specifically and sold it like this! I contacted the vendor, he admitted this and gave me a partial refund...so never depend on designs or think you can't improve stuff...
@@ccllvn in this case the reason it was all fucked must have been cheapness and stupidity
@@ccllvn I'm not reading your shit bc you disqualified your opinion with the word china
@@ccllvn They knew it was gonna be shipped to the U.S. as the major market, and knew nobody would take the time to complain about the design and go through trying to get ahold of somebody in a different country for a refund so they rolled with it. For every one person that took the time to ask for a refund or a fix, 99 people didnt, they just said screw it, I'll deal with it.
Worked in Driveline manufacturing for many years and no one ever explained this as clearly as here .
Hello Sir, i have a question about this topic if you wouldn't mind.
If the Input and Output arent in the same plane but still at the same angle, could you still get a smooth output by adjusting the phase accordingly?
I appologyse for my bad english, it is not my first language.
lol, now I finally understand why CV joints are called "constant velocity"
Lol bots
@Santino Finley wow really?!
@Santino Finley This is your girlfriend. You think I wouldn't find out you poorly endowed minute man boy child? I'm with Chad now. Have fun with that old account.
@Santino Finley HO HO. YoU THOUght It was your girl friend's account but it is me, DIO BOT!
@Harvey Reginald oh my god! I just shit myself in the white house and now biden wants me dead! Thanks for this hack!!!💯💯💯
oh look, another random thing I learned thanks to youtubes recommendations
these are the best kind of *Recommendations* !
This is RUclips University for you.
Interview manager: So I see that you have experience doing x. Yes, during my time at z, I accomplished. So, I see here that you have a degree. Where is RUclips, and tell me what your biggest accomplishment that you completed, while studying there.
Same
The almighty algorithm has spoken - let us give thanks and praise.
It's all bullshit to me. The speed is same.
I qualified as a Jaguar/Rover technician in 1986, leaving the bench shortly thereafter. This is the best demo of a drive shaft and UJ phasing I have ever seen, it should be part of every course!
Me trying to listen to what the narrator is saying.
Card: *BRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR*
Me trying to listen to the card.
Narrator: THE CONSTANT VELOCITY OF THE DRIVE SHAFT
best visual aid I've seen yet
Having repaired and built hundreds of driveshafts from very small to very large , I did learn in the 1970s that the input and output shafts don’t need to be parallel. The angle of each U-joint must be the same though, and they must be inplane with each other.
GM did this with the double Cardin U-joints they used in their upper end cars.
This is, though, by far the best demonstration of U-joints I have ever seen.
I am blown away by how simple and effective this demonstration is. Very very very well done.
Learned something new today. And I probably messed up somewhere back in time on one of my cars. I just never knew it.
This is so specific, I didn't even know before that I need an explanation why my car vibrating in "waves".
😂 it’s better for digestion
In my youth I spent a lot of time out 4 wheeling with others. You'd be surprised at how many of them (back then) didn't know how to PROPERLY raise a truck body/engine and set up the drive train. Saw a LOT of broken yokes out on the trails that came back to this... GREAT VIDEO! Thanks!!!
I just fixed the PTO water pump driveline on our water truck myself because no one would believe me that the shaft out of phase was the cause of multiple pump shafts breaking. If I knew about this video, the boss would have made the guy who put it together out of phase fix it. At least if I show them the video now, they won't be able to say "it's just a coincidence that we haven't broken another pump shaft in years". I don't want to wait years to prove I'm correct either. Thank you for the "seeing and hearing is believing" video!
That Kroger Card will never be the same.
Good ol kroger card
Wow. I never thought thatthe middle axle would behave like that, making un-even rotating. Very interesting and important video, thank you!
Brilliant. One of the best demos I've seen of u-joint angle and phasing.
Im a retired mechanic , found this most interested , learnt somthing . I made it a habit to mark everything . Wheel removal>mark it..brake drum>mark it and so on. In some instances it payed off , eliminating guessing & wasting time . .
I wouldn't have thought of this on my own in a hundred years. Thanks for the great info!
My wife said my constant velocity was off but once I showed her this video, she now understands how angular velocity phasing works. Thanks Spicer!
Now THIS makes the "constant velocity" in CV joints make a lot more sense. Thanks for this.
Driveline vibrations ... I know some dodge Ford and chevy dealers that need to watch this video. Very good and thank you for teaching
So great. Never had "need" for this info. But!, after a lifetime of movie car chases, (when camera aimed at undercarriage) I now have Much clearer understanding of how those crazy looking tube-connections make a vehicle "go". It's the smallest of things, but a sincere thank you.
Not into cars but I did watch the entire video, even made a comment. Very fascinating
This isn't about cars, it's about mechanics and basic principles of operation.
He made a magic wife annoyance machine with that card and that gear. It earned him the couch for a good week
And this perfectly describes why I can't become an engineer, it's fascinating, but I, for the love of life, couldn't memorize half the terminologies, and usually the way I would describe all of this would be more similar to how a 5 year old describes the movie they've seen a week ago :D
I'm sure you'd make a good engineer! The terminology comes along with exposure and practice, from what I understand.
@@ratchetguns + it's not the terminology that makes an engineer, but his ability to approach and solve problems
@@ratchetguns Yeah, I'm aware of that. Just always sucked at math... I get the idea of it, how it all works in my head.. But once you throw in the numbers, that's when it all starts sounding chinese to me (No offense to Mandarin or Cantonese speakers, just merely pointing out that it's a very exotic language)
@@HyperusAnd knowing math helps lol :D
The best engineers can explain things without using complex terminology.
I always knew it was important to put the driveshaft back in how it came out, but didn't know why until now...thanks youtube algorithm and this video!
I got sent here from S V SEEKER. One of the best and interesting visual demos I have seen in quite a while. Thanks....
I knew what the theory of universal joint velocities was, but I could never completely understand it. This totally clarified it, brilliant demonstration
Fascinating and easy to comprehend. Glad this was posted. I understand that a driveline angle of less than 10 degrees is optimal.
Nice demo, this really puts to bed all of the incorrect information you hear about engine, rear end, and drive line angles and what to do about harmonic vibration problems.
I never thought about that before / good info!!
It would be so easy to have a driveline issue after reassembling and completely be completely puzzled. Then have the problem mysteriously go away after taking everything apart and reassembling.
This demonstration video has got to win a prize. It's an instant classic like that 1937 black and white differential video with the motorcycles.
Thee best visual display of these dynamics EVER👍👏👏👏
Never heard of this. Probably never would need to know this, but now I know how a u-joint drive shaft works
I should show this to the guys who lift their trucks. It makes sense now
13 in. lift no problems
Just gotta keep axes parallel
Yep my brother and I had to learn about this before lifting his truck.
My answer to this it portal axles
@@tony_rd1941 I would get them but I am a cheap bastard and those are not.
Most Mechanics Never mark the position, change the U-Joint.. charge you for it, and now things will gets worse. Excellent Illustration Video.
Ok bro, now my life is more complicated
This was by far my favourite episode of this anime! Glad they got them spinning in sync again!
Is this Corey in the house?
@@DaDaDo661 LOL
There video is packed with great info. I was taught all of this but never saw a demonstration. This great!
brilliant demonstration!
all 800,000 people who were having drive shaft velocity issues: *ah...that makes sense*
drive line vibrations*
I definely learned something new and useful thanks to this video. Great job.
It's amazing how many arguments you can get into over this simple principle.
Thank You for posting this. I understand drive shaft velocity and phasing better thanks to this short video. it is an excellent demonstration.
please oh please post more videos. There is a glut of videos on every subject, but the approach and demonstration from this 2012 video is still far superior to the others on this topic.. post more videos....!
Thanks for an amazing explanation of this....I often wondered what that "constant velocity joint" on my 73 chevy was all about...Especially when the driveshaft only lasted about 70K miles before that joint started "singing" and had to be replaced....
What a simple demonstration. Brilliant
best ever. ridiculous how how many times I have tried to explain a 'constant velocity joint' to people
r/iamverysmart
This is the video every project car builder needs to see to solve their driveline vibration problems. Gotta match your angles at the tail shaft and pinion.
Phasing two piece shafts as well. Can't count how many times I've seen people replace a joint on a shaft, only to put it back in incorrectly..
I've demonstrated the same concepts before, only using static drawings. I like the addition of the auditory feedback using cards.
Good demonstration, easy to understand even for non-technical people.
Fantastic video. I knew that there were alignment necessities with two u joints but had no idea how to visualise it. Once saw a raised pickup with huge wheels and to get the driveshaft to connect to diff at such a sharp angle they used two cmpletely floating U joints. No mounts. didnt see how they moved it but looked a complete disaster.
Well I'll be darned. It's brings a whole new meaning to the yokes on U.
Thank you youtube recommendations and this channel. I suppose I'll need this information later in my life.
Thank you for this wonderful explanation and I hope to explain about the flexible shaft
Now that’s some serious mechanics.
That was a bloody awesome demonstration! Liked and subscribed👍
I shall remember and cautiously apply this whenever I will need to replace driveshafts in my life, even though I only own front driven cars
Front wheel drive cars have CV (constant velocity) joints that don't suffer this problem.
@@moyadapne968 now who would have thought that!
Oddly enough, this helped me with my double bass pedal setup for drums. Physics is crazy
my knowledge raised after watching this video, thank you
I now understand how constant velocity joints work and why
Guys wife ”can I have the credit card to go shopping?”
Guy “sure, let me just film this instructional video real quick”
Thank you for explaining the joke to me! 👍 I don't think that I had read the post, just the comments.
Best demonstration vid I have seen in a long time......
The new thing which I never knew about the drive line. And great(card) demonstration 😀.
I’m really happy to know
Thanks to the video creators 😊
I did not know this until now!
That is really good info for when you swap engines or lift your car
Love the card indication.
Very very good demonstration of the effects.
Excellent video. Thanks for the demonstration.
Using sound to demontrate the different velocities. Genius.
The addition of a linear torque encabulator have been shown to eliminate the effects of improper phasing.
I bet someone tried this experiment first and came up with some crazy overly complex method to display how the rotations are not in uniform using a bunch of charts and graphs. This guys like “just slap a credit card on it”. The best engineers come up with the simplest solutions.
Wow, this was actually very informative and I learned something. Thanks!
whooa.. hes using sound as an example of detecting the non uniform velocity. a simple solution to a complex problem.
excelent, will show to my operators of farm equipment
Good explanation 🙏🙏🙏👍👍👍 thanks a lot sir
coolest card trick i have ever seen
Very interesting, you learn something new everyday I guess
One of the useful videos that youtube recommends in random...!
This is just cool. Great demonstration!
Not boring of watching this video from time to time.
wow, never knew the physics of u-joints would create a hi - frequency speed modulation for the output. Thanks so much for uploading, and the great visual aids!
A very hard concept to grasp, I use this video to explain driveshaft angles and alignment to my customers.
Brilliant demonstration. Thanks!
Excellent! genius explanation! Thank you so much!
Good knowledge sir 👍
Great presentation
(video stopped at 2:26) Why the halfshaft still looks out of phase in the picture? (maybe one groove out of phase?)
This is Tom Koedam. You’d do well to understand this demonstration he did the next time you take a driveshaft to your local “experts!”
Beautiful representation...
Why is this in my recommendations? Why am I suddenly vibrating with excitement to share this with my gaming buddies on Discord?
This is what we want, a constant speed into the member
Anyone that has used a wobble socket adapter will know the pain of the physics behind this lmao
hate them damn things!
Ah! I understand now why the velocity of the middle sprocket changes when the shaft is jointed! In the perspective of the middle section, when the input shaft turns, the rotating "circle" moves as well, changing the perspective of the circle, therefore making it more ovular than circular.
Simone need to send this video to GM!!!