The Most Complex Automatic Transmission I've Ever Put In A LEGO Car

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ความคิดเห็น • 305

  • @Minty1337
    @Minty1337 หลายเดือนก่อน +551

    the trailer test was definitely the best way to visualize the CVT, its easy to see it slowly change gear as it gets up to speed

    • @BananaGearStudios
      @BananaGearStudios  หลายเดือนก่อน +28

      Yeah, I was really happy with how those tests turned out. That's also why I tried to keep the chassis quite simple so it's clearer to see the CVT wheels inside.

    • @mooncricket16
      @mooncricket16 4 วันที่ผ่านมา

      ​@BananaGearStudios would be cool seeing the vehicle driving through some loose sand or dirt to test the cvt. But I agree the trailer and added weight does a great job of showing us how the transmission works

  • @akaHarvesteR
    @akaHarvesteR หลายเดือนก่อน +726

    Why not roll the gearbox on its side, and transmit power to the wheels using a bevel gear? No ground clearance issues then. :)

    • @StreetSurfersAlex
      @StreetSurfersAlex หลายเดือนก่อน +47

      Losing some power through the bevel gear I guess

    • @ragingbulllego
      @ragingbulllego หลายเดือนก่อน +108

      @@StreetSurfersAlex Probably not, I think there would be more power loss from multiple spur gears than a single pair of bevels. Also, it would be easy to incorporate a diff, further reducing power loss when steering.
      My guess is that the chain would droop down too much, causing reliability issues.

    • @Unicycler21
      @Unicycler21 หลายเดือนก่อน +10

      That's what I was thinking. Stack that thing vertically.

    • @garrettquartararo201
      @garrettquartararo201 หลายเดือนก่อน +7

      It might make it too wide, the proportions looking weird.

    • @DemoR
      @DemoR หลายเดือนก่อน +4

      Pretty cool to see harvester here lol

  • @Rose-yx6jq
    @Rose-yx6jq หลายเดือนก่อน +91

    I've seen demonstrations of manual transmissions before but this is the first time I've actually seen someone make an automatic one out of Lego.

    • @dustinandtarynwolfe5540
      @dustinandtarynwolfe5540 หลายเดือนก่อน +14

      Yes but only automatic in the way it functions. It's a cvt so it does not work like a traditional "automatic".

    • @DarmiGames
      @DarmiGames หลายเดือนก่อน +3

      And what's even cooler is, that it doesn't use any electric parts to work. Purely mechanical. Never seen an automatic not use electric parts and sensors.

    • @askbeforeplaying2983
      @askbeforeplaying2983 หลายเดือนก่อน +1

      ​@@DarmiGamesCentrifugal 2 speed transmissions exist in Nitro powered RC cars, and don't use any electronics. They use a centrifugal clutch to engage second gear, and a one-way bearing to disengage first gear once second gear is engaged. A few manufacturers have also made 3 speed versions.
      The gear selection on these is determined by speed though, not load. The shift point can be adjusted manually, but if it's set to go into second gear at a certain speed, it will shift at that speed no matter what the load is.

    • @bmxscape
      @bmxscape หลายเดือนก่อน +1

      this isnt what is defined as an "automatic transmission" but it is a ""CVT" aka continually variable transmission. "automatic" transmissions in vehicles are not designed this way other than snow mobiles and go karts

    • @DarmiGames
      @DarmiGames หลายเดือนก่อน

      @@bmxscape I know, some nissans have cvts, but it's stil really cool, because if I'm not wrong, even those use electronics to control it.

  • @Jackpkmn
    @Jackpkmn หลายเดือนก่อน +161

    There's no actual rule that the line from the motor to the drive differential needs to be parallel with the road surface. You could have put the CVT on its side above the car and run the drive shaft down to the differential in the wheel base. Then you could have the car be as narrow as you wanted and have all the space in the world for steering.

    • @TheAgamemnon911
      @TheAgamemnon911 หลายเดือนก่อน +36

      That also was my first thought. But it would lead to the problem of keeping the chain in place, because this design relies on gravity to keep it where it is while standing still.

    • @hohuynhquocchuong4925
      @hohuynhquocchuong4925 หลายเดือนก่อน +5

      If the vehicle is heavy enough to make the horizontal torque less effective. In this case, the CVT is nearly 1/3 the weight, so the horizontal torque will be noticeable. The CVT on normal scooter is off center and not make any large effect.

    • @BananaGearStudios
      @BananaGearStudios  หลายเดือนก่อน +26

      I did consider that, though I thought the chain might slip off of the CVT wheels if I positioned it horizontally, as one of the replies already mentioned. Regarding the size, it might've made the car slightly narrower, but it would've made it a lot taller, so there was a compromise to make there. And doing that for the coupled CVT would've made the car ridiculously tall! But you're absolutely right that it would've had some advantages.

    • @LutraLovegood
      @LutraLovegood หลายเดือนก่อน

      Rather than on the side they could be at a 90° angle from each other, and at a 45° from the center of the chassis.

    • @Boogie_the_cat
      @Boogie_the_cat หลายเดือนก่อน

      ​@@BananaGearStudiosthank you. It clearly would slip off horizontally.
      Comments section warriors are always "smarter" than everyone else, because they don't try the idea, they just say "do it"
      Not to mention the torque twist force that would be applied running the "chain" on its side above the frame of the vehicle.

  • @duard8652
    @duard8652 หลายเดือนก่อน +37

    Maybe rotate the gearbox by 90 degrees, so spinning is in horizontal plane? Since you already use gears cvt -> wheels

    • @BananaGearStudios
      @BananaGearStudios  หลายเดือนก่อน +4

      Yeah, that's a nice idea! At this scale it might've made the car slightly bigger, and I was a bit worried that the chain would slip off the wheels if I put it horizontally. But it would definitely solve the ground clearance issues.

  • @TimoGaming-n7g
    @TimoGaming-n7g หลายเดือนก่อน +26

    I would NEVER be able to even come up with this, let alone build it out of my own mind. Ur one of the best lego technic builders anyone can find on the internet.

    • @BananaGearStudios
      @BananaGearStudios  หลายเดือนก่อน +3

      Thank you, I really appreciate that!

  • @kaspis0019
    @kaspis0019 หลายเดือนก่อน +88

    No, so sad that you won't make anymore videos about it. I really would like this concept to get scaled up, made smother and put into a vehicle.

    • @BananaGearStudios
      @BananaGearStudios  หลายเดือนก่อน +39

      I'm sure I'll find some uses for it in other videos, but after 3 months of videos on this I've got lots of other ideas I'm excited to work on :)

    • @bannerman100
      @bannerman100 หลายเดือนก่อน +2

      Surely, this works on the same principle as the DAF Variomatic transmission ?
      en.wikipedia.org/wiki/Variomatic

    • @kaspis0019
      @kaspis0019 หลายเดือนก่อน

      @bannerman100 I'm not sure if the wiki link is incorrect, but in the wiki, it's just a depiction of a normal CVT with a chain. I mean, this Lego version of the CVT overcomes the drawbacks of a normal one. With only one drawback, which is the mechanic, but you could lubricate this one because it uses a chain now.

    • @TotoGeenen
      @TotoGeenen หลายเดือนก่อน

      ​@@kaspis0019The DAF Variomatic used rubber belts. Downside being they wore down quite quickly, but on the other hand, were cheap to replace.

    • @kaspis0019
      @kaspis0019 หลายเดือนก่อน +1

      @TotoGeenen Yea, and this mechanism uses chains with a mechanism to slip them when needed and grip when not. making this mechanism superior. And I haven't seen such a mechanism upscaled and in action

  • @Techmej
    @Techmej หลายเดือนก่อน +18

    Are a huge fanatic of vehicles and technology as a whole, this has really given me something fun to watch. I absolutely love this work, and I can’t wait to see how much better it can potentially get overtime

    • @BananaGearStudios
      @BananaGearStudios  หลายเดือนก่อน +2

      Thank you, I'm glad you liked it!

    • @Techmej
      @Techmej หลายเดือนก่อน +2

      @@BananaGearStudios the best idea I can think of to improve it would be to add a flywheel so it has more momentum and a smoother output

  • @EvanMoon
    @EvanMoon หลายเดือนก่อน +10

    9:08 perfect Star Wars reference

  • @dangoris4164
    @dangoris4164 หลายเดือนก่อน +2

    I'm glad to see this type of gearbox! I had a picture of that in my head for years, but never bothered in doing anything with it. I didn't think of automatic shifting tho. Great job, thanks for sharing!

  • @NvTwist
    @NvTwist หลายเดือนก่อน +3

    Lay the CVT gears on their side spinning horizontally and feeding their torque directly down into diffs, no loss of ground clearance, no lift needed & diffs will shrink its turning circle.

  • @bramweinreder2346
    @bramweinreder2346 หลายเดือนก่อน +5

    I really like the idea. Looks like you could still scale up quite a bit... And you probably should. This principle comes to its maximum potential if you put this in a car sideways, and use the second CVT to turn a central driveshaft. By way of differentials you could make a 4WD vehicle that would have no problems making tighter turns, and then take it for an off-road test. At this scale, suspension travel and chassis torque could become an issue, since you'll probably need to make 10" studded wheels.

    • @BananaGearStudios
      @BananaGearStudios  หลายเดือนก่อน

      Those are lots of great modifications I could make, thanks!

  • @ngiallag2792
    @ngiallag2792 28 วันที่ผ่านมา

    This is the brilliance of Lego. Every child should be given Lego like this as part of some kind of problem solving skills exercise as part of there learning in some way !

  • @Kramin42
    @Kramin42 หลายเดือนก่อน +1

    Electric motors don't gain much benefit from a variable transmission vs just choosing the right fixed ratio, because they generate their full torque at 0 rpm. You might be able to simulate a less torquey motor by using a clutch gear on it to limit the torque.
    Also the heavy trailer probably has a lot of rolling resistance which will prevent your automatic transmission from changing to a higher gear ratio as it gains momentum. You could try taking the rubber off the trailer wheels as solid wheels should roll more easily on a hard surface.
    Your automatic CVT is working nicely, but I think with some modifications the difference with vs without would be more dramatic.

  • @zJoriz
    @zJoriz หลายเดือนก่อน

    I'm still curious about the stability of the output rotation speed. It seems like it's halting or at least not very continuous? I think you'd need several expanding wheels side by side and many more arms+hooks on each wheel (but not so many that the hooks that didn't grab the chain can knock the chain off a hook that did) to get a somewhat stable radius, which if my theory is correct should make it settle down.
    Would be pretty cool if we could find a solution to the chains gliding over the top of the hooks as well. spring-loaded hooks? Hooks that can bump forward a few degrees to fit between the chain links, if they're not pulling?
    I do realize we're straying into 3D printing and/or laser cutting territory here.

  • @billb6722
    @billb6722 หลายเดือนก่อน

    @16:00 a simple fix to stop the first set from unspooling under its own load would be a stronger rubberband. since its dealing with higher loads it will be more... strict when it decides to unfurl the arms to push ratios. since it lives under a higher load, the extra force to unfurl would be a simple fix for more usable ratios on the multiplied side.

  • @454Chevy1970
    @454Chevy1970 หลายเดือนก่อน +1

    Keep your lower gear ratio on the final output and gear up from the motor to the first cvt. This will strengthen the cvt because it will experience less turque

  • @dannyzee1130
    @dannyzee1130 17 วันที่ผ่านมา

    Wow I never thought of this mechanism for a CVT in LEGO Well done 👍

  • @sethharpenger607
    @sethharpenger607 หลายเดือนก่อน +1

    Why not mount the cvt vertically, as in do some right angle connections to the input and output axels are vertical

  • @Kargoneth
    @Kargoneth หลายเดือนก่อน +34

    I have loved this CVT video arc. Thank you.

    • @BananaGearStudios
      @BananaGearStudios  หลายเดือนก่อน +1

      Thanks, I'm glad you liked it! Now the next arc begins!

  • @tanhrs8711
    @tanhrs8711 หลายเดือนก่อน +4

    I was waiting for it !

  • @DreitTheDarkDragon
    @DreitTheDarkDragon หลายเดือนก่อน

    First idea, without watching any previous videos - what about centrifugal governor comparing speed of input and output? Stopped motor means no difference, so it's set by weight/spring to slowest gear ratio. As speed of motor increases compared to CVT output, governor will pull shaft and change CVT ratio to faster one.
    Second idea - sense tension of chain between motor and CVT, when it's too tight, switch to lower gear, when too loose, switch to higher gear :) Sensing could be done just by spring-loaded wheel pushing on chain, kind of like a tensioner.

  • @nitrorulezzz
    @nitrorulezzz หลายเดือนก่อน

    Nice video. One thing you could have added to show how the two sequential CVTs interact is using your torque meter. Use one on the input, the second in the middle and a third on the output.

  • @jeffmerkel3046
    @jeffmerkel3046 26 วันที่ผ่านมา

    This is some of the coolest shit I've ever seen. Seems way more intricate than anything I've even seen from Brick Technology. Great work!

  • @captainmax573
    @captainmax573 หลายเดือนก่อน +2

    Send this cvt design to a car company dude, what this world needs is a CVT transmission that can be driven instead of belt driven so it can handle more torque

    • @aliceiscraxzy6518
      @aliceiscraxzy6518 21 วันที่ผ่านมา

      Toyota pretty much fixed cvt problems by giving it one actual gear (1st gear) for getting the car moving and then transfering to cvt for any other driving. This relieves stress that causes a lot of cvts to fail

  • @_aullik
    @_aullik หลายเดือนก่อน

    stepping through the frames when the trailer gets accelerated is really interesting to wach.
    From this observation i also think that in the double cvt vehicle, the red cvt needs stronger elastic bands.

  • @stutterpunk9573
    @stutterpunk9573 หลายเดือนก่อน +2

    i think you could solve the speed problem by having different band resistances on each cvt

  • @treszenrv9401
    @treszenrv9401 หลายเดือนก่อน

    Can't you rotate the 90° the CTV , put it on-top of the frame and connect it to a differential?

  • @tiger4tame
    @tiger4tame หลายเดือนก่อน

    why can't you make the CVT horizontal? I would think that might make space on the bottom for a differential.

  • @thesaint3389
    @thesaint3389 หลายเดือนก่อน

    Okay what the heck this is actually the coolest Lego technology I’ve ever seen

  • @fluxxi5289
    @fluxxi5289 หลายเดือนก่อน

    With how much weight the motor could pull with the CVT, I’d imagine you could make the car much bigger without any problems from the motor. Would probably allow for axles, a gearbox for reversing, and a better steering system

  • @fizixdrift
    @fizixdrift หลายเดือนก่อน

    Experiment with different elastic strengths on each CVT, or use springs to push outwards instead of holding the pistons inward? Many things to think about, awesome design!

  • @jcob9060
    @jcob9060 หลายเดือนก่อน

    To handle such torque you should make simplified Vario transmission (gearbox without variators). Two motors and differential. 1st motor running full speed frontward, 2nd motor full speed backward and decreasing 2nd motor rpm will produce torque at the output of the gearbox and after getting to 1:1 ratio (with 2nd motor stopped) 2nd motor also starts to rotate frontward and output rpm is higher than motor rpm because thats how differential work,
    but you would need to operate rpm's smoothly with idk maybe lego mindstorms could do it?
    also 2nd problem can be spinning 2nd motor while passive
    (I've used worm gear to prevent this, but I was using high speed motors)

  • @ShawnSatterfield
    @ShawnSatterfield หลายเดือนก่อน +1

    This is amazing work, thanks for sharing.

  • @guard13007
    @guard13007 หลายเดือนก่อน +3

    I am both sad and excited to see you switch away from this particular project.
    I hope to see more with it eventually.

    • @BananaGearStudios
      @BananaGearStudios  หลายเดือนก่อน

      Thanks, it's nice to hear you've enjoyed these last few videos! And yeah, I'm sure it'll come in handy in some future videos.

  • @jakematthews6982
    @jakematthews6982 หลายเดือนก่อน

    Is there a way to use a hollow shaft or maybe raise the rear portion up a bit and transmit from the output of the cvt via another chain drive to the drive axle?

  • @bonovoxel7527
    @bonovoxel7527 หลายเดือนก่อน +1

    WOw dude. What an explanation, Kudos!

  • @BillWrites-t2e
    @BillWrites-t2e หลายเดือนก่อน

    You could add weights to the imput "pully" so that as rpms increase the weights would pull the pully open and change the gearing to go faster

  • @xmoex6393
    @xmoex6393 หลายเดือนก่อน

    what about combining two or more smaller mechanisms to reduce it's size or make it more compact?

  • @henriwahl4709
    @henriwahl4709 หลายเดือนก่อน

    Wow, cool design.
    Is there a different to a varimatic in a 50ccm motorscooter?
    Or is it a new invention?

  • @RichardAvery20
    @RichardAvery20 27 วันที่ผ่านมา

    Awesome man. I hope your channel does really well!

  • @rrstryker
    @rrstryker 13 วันที่ผ่านมา

    I always wondered if coupling multiple cvt would work. Been wanting to get more top end out of my gokart without loosing any bottom

  • @Francois_Dupont
    @Francois_Dupont หลายเดือนก่อน

    what is the name of this Lego set?
    i remember when i was a boy one of my (rich) friend had a full set of pneumatic set and it was really awsome for tinkering. i see that your current set is more steered towards making vehicules and motorized stuff.

  • @bebarty
    @bebarty หลายเดือนก่อน

    You could've circumvented the problem with the limited space a bit by laying the cvt on its side. It would allow you to use a differential gearbox in the back and a propoer steering mechanism in the front, and maybe even the reverse gear in the back.

  • @CitAcanada
    @CitAcanada หลายเดือนก่อน

    I can't stand CVT transmissions. Unfortunately it seems to be what all manufacturers are moving towards.
    That being said. This is a super cool build. Great work 👏

  • @LutraLovegood
    @LutraLovegood หลายเดือนก่อน +1

    For the highest speeds, try it with a suspended chassis. Max speed is always going to be gravity assisted: going downhill.

  • @ConvictJ96
    @ConvictJ96 หลายเดือนก่อน

    really cool but does the cvt still carry any sort of meaningful advantage over a standard transmission when you take size/complexity into account?

  • @Remi-The-DIY
    @Remi-The-DIY หลายเดือนก่อน +2

    I wanna make one myself, could you plz provide instructions?…

  • @SlyNine
    @SlyNine หลายเดือนก่อน

    Can you control the rubber bands? Making them tighter on demand.

  • @Mario-ep7rr
    @Mario-ep7rr หลายเดือนก่อน

    why put the fearing not horizontal ON the chassi ?

  • @nutansaxena1565
    @nutansaxena1565 หลายเดือนก่อน +8

    Waiting for the CVT car 🎉🎉🎉

    • @Gazlene420
      @Gazlene420 หลายเดือนก่อน

      They have already existed for years, and are terrible, unreliable, and depreciate harder than any other cars on the market.
      Great concept on paper, and in controlled demos... but in the real world they are an absolute disaster, and complete waste of money

    • @user-vp1sc7tt4m
      @user-vp1sc7tt4m หลายเดือนก่อน

      @@Gazlene420 My 2019 Honda Civic with CVT begs to differ. It's saved quite a bit in fuel cost and I've had no issues. It's been quite a bit better than the Nissan CVT that I experienced from a few years before and I only have five years of history using one in a car. CVT's in many other lower torque applications (snow mobiles, bicycles, etc.) have been reliable for many years. I especially like the eCVT concept now being used in some vehicles (mostly hybrids) where you have no steel segmented belts and the hydraulic pressure actuated pully. Instead you have a torque variator using low power electric motors controlling the high torque variable speed by using a planetary gear controlling power from both ICE motor and electric motor.

  • @Barnaclebeard
    @Barnaclebeard หลายเดือนก่อน

    Ncm! I've never seen that unit before, and it's ADORABLE!

  • @paytonrickle6785
    @paytonrickle6785 หลายเดือนก่อน +2

    I am going to try and make a 3d model using a cvt like this. I’m gonna try and make the parts 3d printable parts. Hopefully I can build the Lego version of this correctly.

    • @BananaGearStudios
      @BananaGearStudios  หลายเดือนก่อน

      Good luck! The one downside of building it from Lego was how big the CVT had to be, but 3D-printing it you might be able to make it small and compact enough to fit into all kinds of machines!

  • @embervoid1560
    @embervoid1560 หลายเดือนก่อน

    You can put the two cvts in a v formation and save a lil space for the batter and motor

  • @jacquesb5248
    @jacquesb5248 หลายเดือนก่อน

    very interesting! why angle it or even go vertical?

  • @KabirMarathe
    @KabirMarathe หลายเดือนก่อน +1

    CVTs may not be reliable in real life, but they are mesmerising to watch

  • @Spip-yt6dx
    @Spip-yt6dx หลายเดือนก่อน

    install the CVT horizontally on top with an angle drive you will be able to more easily make room for the steering and the gearbox

  • @NineSun001
    @NineSun001 หลายเดือนก่อน

    Why didn't you just rotated the by CVT 90° on the long axis and put it on top of the car to eliminate ALL ov your problems? You already have gears between the CVT and the wheels, so that can't be the reason.

  • @jotaro4874
    @jotaro4874 หลายเดือนก่อน

    Wouldn't mind another video on this, it's pretty interesting and I'd like to see you try to optimise it

  • @Cutie22704
    @Cutie22704 หลายเดือนก่อน +3

    Mount the transmission so it’s lying flat above the frame and you can drive all 4 wheels with differentials in addition to being able to stack multiple CVTs on top of each other to give a much larger gear ratio. If I had the resources available I would make it myself to show you what I mean

  • @pipocaplayer
    @pipocaplayer 4 วันที่ผ่านมา

    Maybe something to make the reverse work would be a motor to sort of lock the chain and/or the size of the cvt wheels

  • @jglathar4011
    @jglathar4011 หลายเดือนก่อน

    I want to get some micro lego motors to power my builds what micro motors should I get?

  • @robinmoussu
    @robinmoussu หลายเดือนก่อน

    That’s amazing. Definitively the kind of lego set I would have loved to get when I was a kid

  • @MpS__tiden_går
    @MpS__tiden_går หลายเดือนก่อน +2

    this is exactly the type of video for wich I subscribed ^^

  • @whateverittakes4099
    @whateverittakes4099 หลายเดือนก่อน

    Could use different rubber strengths in both CVT to manage max torque from desd stop to min torque while highest speed.

  • @karthy5754
    @karthy5754 หลายเดือนก่อน

    Great video to visualize CVT technology. 👏🏽

  • @apextuna
    @apextuna หลายเดือนก่อน

    IDEA for future. To get different driving styles, the tension of the bands could be increased or decreased, depending on the intent of the vehicle it is being fitted too. Weather it is for more driving and getting up to speed, and if it needs to be as low as possible as much as possible.
    So I could easily see this in a utv or something, pure mechanical so there is less electronics to work on.

    • @BananaGearStudios
      @BananaGearStudios  หลายเดือนก่อน +1

      That's a nice idea!

    • @apextuna
      @apextuna หลายเดือนก่อน

      @@BananaGearStudios Thanks!

  • @monstercameron
    @monstercameron หลายเดือนก่อน

    is it changing gears based on centrifugal forces?

  • @Aussiesnrg
    @Aussiesnrg หลายเดือนก่อน

    Wow! Awesome job! Very snazzy!

  • @billb6722
    @billb6722 หลายเดือนก่อน

    a fun experiment would be making a CVT with a ball and a roller that using the geometry of the ball to transfer ratios.

  • @crazytechnic486
    @crazytechnic486 หลายเดือนก่อน +3

    how do you consistently make such great and interesting content also this is a really cool build

    • @BananaGearStudios
      @BananaGearStudios  หลายเดือนก่อน +1

      Thanks, I really appreciate that! One thing that really helps me is to always be working on multiple ideas/videos concurrently, so that if I run into a problem on one video I can always work on something else meanwhile.

    • @crazytechnic486
      @crazytechnic486 หลายเดือนก่อน +1

      @@BananaGearStudios I will try that one in the future. the other problem I have is production quality ,although I use a good camera it doesn't always look as good as I want it to, and especially with lighting

  • @bryanrandom6382
    @bryanrandom6382 หลายเดือนก่อน

    enjoyed the video! you should make one about seeing if graphite or WD-40 on the axels would help lower friction leading to better results! that could be neat.

  • @adrianvalbuena8158
    @adrianvalbuena8158 16 ชั่วโมงที่ผ่านมา

    Amazing project!!

  • @TheGuyFromDenmark95
    @TheGuyFromDenmark95 หลายเดือนก่อน

    A fix for the turning issue you could make the rear tires turn as well, that should help a lot, but is also complex

  • @ThunderBassistJay
    @ThunderBassistJay หลายเดือนก่อน

    Nice!!! 😀Back in the 70's I also built Lego gearboxes (and much more).

  • @Barnaclebeard
    @Barnaclebeard หลายเดือนก่อน

    presumably the elastic band in the CVT represent a power drain to hold them in a more stretched length

  • @mitchellhunter8673
    @mitchellhunter8673 หลายเดือนก่อน +3

    Dont you mean i put a car on my most complex lego transmission

  • @jam4live99
    @jam4live99 หลายเดือนก่อน

    Why no putting it horizontally?

  • @DarmiGames
    @DarmiGames หลายเดือนก่อน

    I know you've said, this will be the last video on this CVT, but I really wanna see you make a working fully fledged RC car. Big 4WD offroader with the CVT, to really show it's limits.

  • @MrSameerMalik1
    @MrSameerMalik1 26 วันที่ผ่านมา

    Really cool series , I learnt a lot! Thanks

  • @kosmokat111
    @kosmokat111 หลายเดือนก่อน

    fantastic vid and an awesome project my dude.

  • @OnezKrs
    @OnezKrs หลายเดือนก่อน

    In theory could you replace the rubber bands with actuators so u can control the gearing manually depending on the speed/torque u need

  • @trs4u
    @trs4u หลายเดือนก่อน

    Nice, proper LEGO!

  • @RC.Bricks
    @RC.Bricks หลายเดือนก่อน

    It would be cool to see you make more of these than link them together to get even more variation in the speed and torque
    Edit: I dident watch long enough to see you did that

  • @deadbread3818
    @deadbread3818 หลายเดือนก่อน

    Ah i have been waiting for this video

  • @woaminibricks
    @woaminibricks 21 วันที่ผ่านมา

    I like your videos very much you are make a very quality videos

  • @hazza2247
    @hazza2247 หลายเดือนก่อน

    why not just add another hook on the other side of each arm, so it can go in reverse by having the bottom part of the chain in tension?

  • @scottcrawford6487
    @scottcrawford6487 หลายเดือนก่อน

    use rubberbands instead of chain and youll be able to downsize the cvt significantly and itll be smoother and more efficient

  • @deberryn
    @deberryn หลายเดือนก่อน

    Should have made a solid connection, i think it would improve efficiency with acceleration, since its only one trailer

  • @terencehawkes3933
    @terencehawkes3933 หลายเดือนก่อน

    This is very interesting. What would happen if you scaled it up and used it in a real car? I think that the drive would be uneven and produce driveline vibrations,

  • @mdouglaswray
    @mdouglaswray หลายเดือนก่อน

    GREAT stufffff!

  • @brendonrenken6811
    @brendonrenken6811 26 วันที่ผ่านมา

    Did you come up with this from an existing transmission? Because if not you might be a genius lol. I'm prob wrong but I feel like this could be applied to an actual car and solve the belt/power problem.

  • @LukTheCoder
    @LukTheCoder หลายเดือนก่อน +2

    Cool Video 😊

  • @Rockport1911
    @Rockport1911 หลายเดือนก่อน

    Normally not a fan of Belt CVT´s, but this one surely is stronger than the garbage Nissan uses :)
    In real cars iam more into the eCVT Toyota Hybrids use that have a differential at their core. Maybe you could replicate one in Lego?

  • @2kadrenojunkie
    @2kadrenojunkie หลายเดือนก่อน

    can you add a link to "the previous video" in the description? preferable a non-shorts version as well if its a short.
    edit: realized he just used a different feature to add the link. adding it to the actual description would still be much appreciated though.
    edit2, nevermind. apparently the one linked is mostly unrelated.
    edit3:skip to 3:10 in the linked video, theres just a really long intro.

  • @notnoar
    @notnoar หลายเดือนก่อน

    Such a cool Video! Thank you

  • @lamttl
    @lamttl หลายเดือนก่อน +2

    Nice piece of creation!
    But CVT is classified as the worst possible transmission for cars by most users.

    • @Abe8816
      @Abe8816 หลายเดือนก่อน

      only because of two things, slippage and the satisfying upshift sounds of a traditional transmission. The slippage can be somewhat mitigated by adding little griping slots into the pulleys and for the sound it can be added just by programming the TCU differently to act like a regular transmission from going to specific types of gear sizes really fast instead of slowly.

    • @lamttl
      @lamttl หลายเดือนก่อน

      @@Abe8816 Another reason is most mechanic shop don't have the skill of maintaining this new gear box. (may change when this kind of gearbox becomes more popular)

    • @Abe8816
      @Abe8816 หลายเดือนก่อน

      @@lamttl True, but TH-cam is an awesome place and I my self have learned from knowing nothing about cars to being able to fully rebuild a transmission

  • @trey9088
    @trey9088 13 วันที่ผ่านมา

    Impressive. Now make a dualclutch 7 speed transmission

  • @bobthecomputerguy
    @bobthecomputerguy หลายเดือนก่อน

    That's really neat. Any idea what the ratio is between the highest and lowest gear? EDIT: Nevermind! I paused the video at about the 10 minute mark to ask this question, literally 20 seconds before you answered it in the video.

  • @haosheng12
    @haosheng12 หลายเดือนก่อน

    A Dual-motor e-CVT design with a planetary gearset might also work, but it'll probably need logic.