CVT from LEGO with explanation, most simple LEGO CVT
Ғылым және технология
Continuous variable transmission gear made of LEGO parts. Step by step from idea to real working CVT. Used in simple roundabout. This is most simple CVT made of LEGO parts. No slipping machine, high friction. Educational video to explain principles of CVT, how it works. The original idea of ball based CVT was invented by Leonardo Da Vinci and simmilar design from lego bricks was presented by Lego Technic Mastery channel. But there was no explanation of basic principles of this awesome mechanism.
Пікірлер: 849
A new easily broken CVT??? * *Nissan wants to know your location* *
@xethlorien4736
3 жыл бұрын
I learned of this about 6 months after I bought a sentra... i'm hoping i get lucky
@DaxtonAnderson
3 жыл бұрын
@@xethlorien4736 Just don't ever floor it, ideally keep it under 4000rpm while accelerating, EVERY time you get an oil change get them to check your trans oil. If you've got a U-Pull near you I'd go get a spare transmission and keep it in the garage for the day you need it. Mechanics love to rip off Nissan owners knowing they're desperate, going in with a spare trans will save you hundreds if not thousands.
@absolarix
3 жыл бұрын
@@DaxtonAnderson This is some pretty good advice right here.
@camouflagecamaro99
3 жыл бұрын
@@xethlorien4736 iirc there is a big class action lawsuit against nissan and their cvt's you should see if you're eligible for compensation
@Dazdigo
3 жыл бұрын
The NuVinci Bicycle CVT video shows the same concept. I am surprised this version of CVT isn't being more used in vehicles since I can see it being more reliable than the belt version.
I love the fact that there are no limits for what we can make with legos
@vincentrobinette1507
3 жыл бұрын
It truly is amazing, what we, as adults, can learn from playing with "kid's toys".
@anandareisya2396
3 жыл бұрын
Can make child?
@OswaldoRodriguez
3 жыл бұрын
The real question remaining "is the red ball a Lego part ? " (Ok, I admit I'm interested in testing it)
@AlbertoDsign
3 жыл бұрын
@@OswaldoRodriguez Yes, it is! Lego technic ball! www.bricklink.com/v2/catalog/catalogitem.page?P=32474#T=C
@andreungerer3531
3 жыл бұрын
Lego stays Lego.
Why isn't this video more popular? This is really high quality stuff
@ferdoreznik
3 жыл бұрын
I am new on youtube and I have only few subscribers.
@Jesus_Christ_loves_you_alot
3 жыл бұрын
Exactly!
@castortoutnu
3 жыл бұрын
Probably fewer people in the world than you think are actively looking for Lego CVT transmission designs.
@enchantedspider8842
3 жыл бұрын
@@ferdoreznik dont worry, you just got +1 in my person, and im sure many more will follow
@dancho0012
3 жыл бұрын
@@ferdoreznik keep it up and you'll blow pretty soon
I have had a Nuvinci CVT bike hub for years now, and this is the first time I actually understand how it works. I knew it had balls and they somehow manipulated the transmission, but I needed to see this vid to finally put things together in my brain. Thank you so much for this highly educational video!
@Ed.R
3 жыл бұрын
I have NuVinci hubs on my bikes to, in fact I'm rather obsessed with them. This video is a rather good representation of how one works.
1:31 here you see what a Manual CVT would look like, if a company ever made such a thing. A lever in the cab controlling the gear ratio!
@rossbrumby1957
3 жыл бұрын
You can get that in a rear hub for pushbikes, called the Nuvinci cvt. Has a twist grip for ratio changes and you can change ratios under full load or stationary without any issue unlike derailleur gears.
@michaelbuckers
3 жыл бұрын
@@rossbrumby1957 Unlike chain & derailer system it also seriously suffers from efficiency loss, and when you're the one providing power even small loss is a big deal. It's why nobody actually uses anything other than chain & derailers, which are upwards of 99% efficient.
@Ed.R
3 жыл бұрын
@@michaelbuckers I've used NuVinci hubs on my bikes for 8 years now, efficiency is perfectly acceptable. The CVT in this video works exactly like a NuVinci hub except it has only one ball or planet instead of 6.
@jpsalis
3 жыл бұрын
@@Ed.R there are also planetary gear systems that can be built into the hubs. Some axle-driven and belt-driven bikes are able to get away with unique designs that chain bikes can't as well
@MAXQ14
3 жыл бұрын
The Fendt vario transmission for tractors can also be used manually, but that's a hydro-mechanical transmission.
It took a brilliant mind to figure that out - Jeremy clarkson
Really would like to see how it performs when force is applied to it. Like on a car. Great design, also can be controlled by a servo
@Gin-toki
3 жыл бұрын
It have been used for a real life car, so I'm guessing it works rather well under load. See en.wikipedia.org/wiki/Continuously_variable_transmission#Toroidal
@trevorgray3681
3 жыл бұрын
Cvt tranission in an rc car would be awesome
@jonborno8550
3 жыл бұрын
It doesn't work that well.. You still have some problem with slip, which reduces the efficency of the transmission.. There is a bike hub which incoporates the same principle (nuvinci) - go check that one out!
@Nevir202
3 жыл бұрын
@@Gin-toki CVTs in cars are NOTHING like this. Most common design uses belts and adjustable cones.
@Gin-toki
3 жыл бұрын
@@Nevir202 This particular design with discs and balls, have been used in cars before. Check out the link I provided :)
This is actually incredible!
@helmutdergroe9457
3 жыл бұрын
No its shit
@tekbox7909
3 жыл бұрын
@@helmutdergroe9457 why?
@helmutdergroe9457
3 жыл бұрын
@@tekbox7909 balls are gay
@jacobtallman8424
3 жыл бұрын
@@helmutdergroe9457 was JnjjjAA I ha
@Kermitted1
3 жыл бұрын
@@helmutdergroe9457 lmao
Great video! Can we showcase some of your work on our Facebook page with credit to you?
@ferdoreznik
3 жыл бұрын
Yeah, of course but so far not so many videos. I will add more in near future.
@petterikippo9863
3 жыл бұрын
@@o_o-fk7ym and lego technic mastery got the idea from a NuVinci cvt. So making a lego version of a real life thing is plagiarism, but only if someone has done it in lego before. And you really expect that this new guy just happened to see that OVER THREE YEAR OLD video from a 50k sub channel, and plagiarise it? And even if he did, his design is quite distinct from it, like the second ball.
@SaperPl1
3 жыл бұрын
I wish you've asked me such questions xD
@SaperPl1
3 жыл бұрын
@@o_o-fk7ym It's a CVT and the video is about explaining how this kind of CV works and how to build it. I don't think he stated anywhere that this is his own creation and that he designed it/invented it and so on. He did a pretty good job explaining how it works, albeit I'd add the rotation axis of the ball to those explanations, and I'd probably make the connection between ball pivot points differently, but that explanation is his content and it's showing off a CVT implementation that probably ton of people could come out on their own without watching LTM video first.
@MathiasA1000
3 жыл бұрын
Looks very much like the nuvinci n360 gearbox I have on my bicycle
This is incredible! It’s so much simpler and smaller than all other Lego cvt’s ive seen before
Awesome explanation as well as demonstration. When i first saw this kind of CVT i didn´t understand it but the way you showed the mechanism it is now clear.
I didn't know CVTs existed until now, but now I totally understand them! This is so cool!
@augmentedjustin835
3 жыл бұрын
Yup. A lot of modern cars use CVTs
@zerodegrees8
3 жыл бұрын
avoid buying a vehicle with a cvt, they were designed to save on weight and parts which also came with a cost of higher failure rates.
@jpsalis
3 жыл бұрын
@@zerodegrees8 not necessarily, it depends on the design. The principle itself leads to a really smooth driving experience, and like you've mentioned already, there are less moving parts
@HerbaMachina
3 жыл бұрын
@@zerodegrees8 cvts are great when they're built properly.
@haxl2200
3 жыл бұрын
most CVTs work using a v belt between 2 variable pulleys so they can use centifugal forces to adjust the speed rather than a manual lever
Never seen a cvt like this before, usally it's the belt and cone ones
This is actually a wonderful transmission for low rpm engines, like steam; it's interesting that you used a variable flywheel for it.
insanely underrated😲
you explained it very well and it was easy to understand. its always nice to see that people still put effort into their videos.
This is the best CVT design I have seen. It looks really efficient and probably could handle a good amount of torque with the right materials.
@adithyanaik8497
2 жыл бұрын
hey can you please check my question in the recent comments and be explain why.. thank you
I had no idea this concept was so straightforward! Thanks for describing how it works and amazing job on the build, as always!
This is by far one of the most useful and direct explanations I have found. Many thanks. Long live LEGO.
You need to make the CVT Foley automatic by adding a differential on the input shaft with a linkage connecting it to the control rod of the CVT so when there’s more load it all down shift and use a rubber bands to apply tension towards the high-speed side of the lever. Also put a small lever on the rubber band to add more and less tension for high speed gear and low speed gear!!!
I have sean many different ways to do that same thing, but you made me see one more. Thats geanious!
@HerbaMachina
3 жыл бұрын
Seen* please do not reinforce people's bad pronunciation of my name for the love of all that is good in the world.
Really Cool!!! Never thought that changing ratio could done with such a simple ball!
I had no idea CVTs even existed prior to this video, and I am very impressed. Great job. I appreciate how you're not using very rare parts, and most people can build this with stuff they have (I don't have the ball needed but still this design is great).
Figures the only CVT designer to say "let's make it more robust" is building with Legos.
That mechanism is so clever... You're a genius my man!
@ferdoreznik
3 жыл бұрын
Not me. Its old mechanism. I just improved it a bit to be really usable. Thank you.
@cl4589
3 жыл бұрын
@@ferdoreznik oh thank you for you comment. I never seen that mechanism before and this video was really interesting. Thank you!
This is an amazing concept and I absolutely love it
Now that is truly mechanical skills.
Thats the neatest cvt I've seen, very elegant.
this is the first mechanical mechanism that actually blew my mind. Subbed
That governor is a great way to show speed! Nice transmission too
I love the usage of differential piece. Just swinging around.
Wow! now I understand vario-transmissions. Thank you
One of those "I can't believe I never thought of that" moments. Excellent work!
That is so clever, but so simple once broken down, amazing to see
Amazing work! This was impossible for my mind...but with lego you can do EVERYTHING!!!
That’s is actually really cool. Very clever. Very impressed.
wow, this is the most interesting cvt idea i seen so far!
you are really a genius man even with my knowledge on the subject I would not have thought of that
That was awesome!
Greate explaination and realisation. Good job!
Fantastic idea, design and construction! Credits to you 👌
@ferdoreznik
3 жыл бұрын
Thank you 🙂
I just wanted to watch gears work, but that explanation was pretty satisfactory...
Genius demonstration! Damn; at 46, I want LEGOs again!
Wow! I love the mechanics of physics... but i've never thought or heard of this! Cool video.
This is really cool and I also learned how a CVT works today.
Thanks for sharing this design its exactly what I was needing for a car im making
This is fantastic!
couldnt work for a car or truck but definitely work of anything smaller. hell, this would shredd the rc community! still amazing to see new ideas
I saw a transmission using this principle for use on a bicycle. Interesting concept. Thanks for posting!
Wow, great idea, great work!!
First video where I hit both the like and subscribe button, at the same exact time, in a very long time.
This is brilliant! On so many levels i love it
So simple, I'm surprised that I haven't seen something like it before.
Fun fact: they used to use a transmission in F1 that also had these *infinite positions* Wich gave them the possibility to run the engine at a static rpm that gave the most torque, but it got banned BCS it was hella overpowered and other teams didn't know how to implement it.
@chewbubs3533
3 жыл бұрын
F1 stunting development of vehicle technology? Totally unheard of
@Alasswolf
2 ай бұрын
@@chewbubs3533 when typing "Do F1 cars have CVT transmission?" on google, you learn that it has been banned for balance between competitors
That’s some ingenious engineering right there!
That is absolutely brilliant
Wow that's amazing!
Educational and entertaining. Thank you.
This should be a LEGO set.. Id buy it in a heartbeat
Simple and brilliant idea
Nice work. Love to make transmissions work
well this was brilliantly explained!
This is absolutely amazing
This dude has all the best lego pieces.i would love to come over and tinker with him
Really love this!
This is really amazing idea for cvt.
I love it. Not for high torque applications but absolutely brilliant for low torque.
@rossbrumby1957
3 жыл бұрын
They are very good in pushbikes to replace derailleur rear gears.
Awesome work. I learnt something new.
Thanks for the idea.
It is a very cool CVT idea which Nissan (now rather infamous for its CVT gearboxes) tried this design in the Y34 Nissan Cedric in Japan back in the late 90s. Using two spherical "balls" to drive two cone shaped input-output shafts it was pretty cool at the time, but its low ratio spread (about 4.3) vs. the more conventional pulley & belt design (which can go up to 6 in Nissan's Xtronic CVT) and high cost meant this roller ball was not to be.
Man you could probably make some awesome twist and switch puzzles using that design
That is so good!
Das ist wundervoll!!! Danke für diese Idee!!!
A fantastic idea, Chapeau!
You just taught me something about engineering! Thanks! :D
This is very well made, bro.
Fantastic! What a genius solution
UR A FOKIN GENIUS
Fantastic!
Truly a wirk of art. amazing, thank you
Cool visualization for understanding
Very clear. Thanks, nice!
Incredible! Never underestimate the power of lego!
Very very VERY cool video, sir!
An interesting concept... I like it!
amazing one!
Awesome!
Great video!!
The principle blew my mind. How are people so smart.
this has SO many uses!
I'm not into lego and such. But I learned something through this vid. Thanks
This is awesome! Liked and subscribed 👍
Really nice video!
Brilliant!
Great Video Salute to you for your efforts.
Nice design, love the music
Omg, thats amazing, car manufacturers could learn a lot from that
Nice work!
That is... absolutely genius...
Good explaination! Thanks