I called my dad, woke him up from watching tv and told him to watch your video. I had to pull the phone away from my ear because he was ecstatic when he saw it work. Congratulations, you got the dad seal of approval!
Wow that's actually really clever, love the way the 16 tooth gear slowly moves then snaps at a certain torque level. Most importantly it scales up to a usable model and still works. I'm a purest and don't like modifing parts apart from a very limited number of reasons, but this is one reason I would. Thanks for sharing this :D
If you build this you might need to make some small alterations. The correct spring might be hard to find, use rubber. I used a special slippy dark grey gear. There are plenty of ways to build this gear set up.
Ohhh snap! That's freakin sweet! I love the open diff used as an automatic shifting mechanism. If you had made this 70 years ago, it would have been on every offroad-duty truck in America.
This gearbox is so awesome and made me so curious, that i instantly wanted to figure out how it works by replaying the first 15 seconds over ond over again until i got it. Then i realized, the video actually goes longer and includes a full detailed explanation LOL.
most wonderful part is that, when gear is moved to the gap between diff and other gear, the whole thing becomes like a cvt due to both differentials. so technically this whole concept is a cvt gearbox . Well done, sir, beauty of engineering.
@@Cobaltthefluffywagon well yes, but actually no. At the time of the comment I did NOT notice that the first differential was not connected to the drive shaft directly. But it's very plausible to create a cvt using 2 differentials.
This isn’t a CVT. there are no continuously variable gear ratios. The ratios are discrete. If you had a CVT it would not just snap into a gear, it would glide continuously between different ratios.
And yet again a guy who knows where he’s talking about! I want to ask the viewers to learn forms these kinda guys whom are showing us tons of informations not asking for loads of money like some of the MOC builders do, but share it with us, free! These kinda guy’s deserves lots of thumbs up 👍 So for this, well done my AFOL friend, thanks for sharing this beautiful video with us.👍👍🇳🇱
Brilliant. It's been a long time since I've played with Technic, so I didn't quite remember how the differential parts worked - so it took some thinking to understand how the arm is moved, but it makes sense! Very cool!
intriguing! now this I can see working on large models. There's a couple of nice gearshift technologies developing in the lego universe. Awesome stuff! I still want to develop cvt further simply because of the numerical advantage of infinate ratios, but I need to build a working brake. Theory is to use 3 diffs, one as sensor, the others as the two path ways. Then the sensor applies a brake to the high torque side, but NOT locking it. Progressive is the key, and so there are no actual gears moving, and the friction is a factor of the loading, not a constant drag. This way we get all the ratios, with little loss. Anyway awesome project, I may have to borrow the idea and see where I get to.
@@diywalkers7898 hi! long time no hear. Hope all's well? I saw something like that and thought it impressive as a prototype - but for my way of doing stuff I wouldn't post a prototype, I keep I hidden until the big reveal. Ok I did my MK1 walker and posted that before it was anywhere near polished, but that was an exception. Hello Max! what are your thoughts? 👍🍺🇬🇧
If you make that video just say," While I was working on this I saw this guys video(link). I guess I'm not the only person thinking about this...(or just put it in the description)" Then you can give credit while not diminishing your own creativity.
This is amazing to look at, as a layman (that's the correct term, I think) like myself. Especially after watching that Jam Handy film on the no-noise transmission.
Very clever and very nice! The only small drawback is that it starts in high gear from a standstill instead of low gear. But it should quickly switch to low gear if the torque is high enough to start moving the vehicle anyway, but there will be a small delay. Thanks for sharing!
The whole idea of using differential as shifters is a nice working example of shifting but wrong at the core of it's idea of raising the force of output. I'll explain it, please stay with me. When you apply tension to the output, differential starts to rotate, transmitting torque to the other path (axle) that is more easy-flown. On that path all of the lego constructors are placing some resistance, as spring, rubber bands and so on. To be honest i've made some experiments too and placed spring suspension for it as it standardised, easy regulated (you can adjust it by choosing colors and therefore regulating a tension) and scalable - you can even put some of them in parallel to increase effect. But what really happens when spring begin to shrink? Torque distributed to shrink the spring till force to avoid resistance at the output will be equal to the force, needed to shrink the spring. If force applied to the shrink the spring became too big (for example when spring fully squeezed, the force grows up to the full motor ability to rotate) - the energy will flow to the output (to the wheels), if output resistance is lower. If the output resistance is big enough too, engine will stuck, not being able to rotate any of differential path. That's it - core principle of differential. It will distribute all torque via two path. Let's get back to the explanation why i'm finding this idea no more than a joke. When spring shrinked more and more gear shifter lower the gear so gearbox will lowering rpm and increase the force on the output, but more and more energy of motor is spent on holding that spring. Yes, the rpm is less, force is bigger, but that force of an engine partially wasted on holding that resistant mechanism whatever it is. So the power transmitted to the wheel became less and less since power needed to hold spring is more and more. I'm not sure about the math model here.
Now, if the gear changing gear was attatched to a revolver with 6 different ratios around it in a circle and the sensing spring/load became greater each 6th of a revolution of the revolver, you could make a 6 speed auto box.
Nice concept! Just one Question. Why is the system capable to transmit torque in neutral position (between gears) ? In theory you would have on the output an open differential which wouldn't be able to transmit any torque if the carrier is free once you disengage the 1:1 gear. Might be the friction on the system (specially between red part and shifting gear) that high to braque the carrier while downshifting?
Very nice build! But i think it would be more realistic if it starts in 1st gear and shifts into second gear at a certain speed of the output shaft. You could do that with a simple centrifugal mechanism like the governor on old steam engines. That way a 3 speed gearbox should also be possible.
I totally agree. I have a tiny one on my community page but it would need to be larger so it could exert more force. I haven't found a way to make one as compact as this.
That's a very clever design! I still need to visualize why the arm (that locks the output differential) doesn't oscillate back and forth, from the moment is unlocks the output differential.
How a little bit of spring can take a big step . Changing the gray colored 8 tooth gear to a red colored 8 tooth gear would help. The red version of the 8 tooth gear is frictionless so it can slide with ease on the axle
A gearbox made this way using a differential in reality what it does is to disipate the effort momentum it doesn't increase the torque in the output shaft...
I called my dad, woke him up from watching tv and told him to watch your video. I had to pull the phone away from my ear because he was ecstatic when he saw it work. Congratulations, you got the dad seal of approval!
This is going in the best comments scrapbook.
This is so wholesome
THAT is the coolest LEGO gear box that I have ever seen. 😮😮😮 Truly amazing 👍👍👍
That's right.
Seen better
Hallo Kimberly✌️
@@thelongislandplanesandtrai3638 Nintendon't believe you.
Wow that's actually really clever, love the way the 16 tooth gear slowly moves then snaps at a certain torque level. Most importantly it scales up to a usable model and still works.
I'm a purest and don't like modifing parts apart from a very limited number of reasons, but this is one reason I would.
Thanks for sharing this :D
If you build this you might need to make some small alterations. The correct spring might be hard to find, use rubber. I used a special slippy dark grey gear. There are plenty of ways to build this gear set up.
I have been told that Lego makes a small red gear that slips on the axle for things like this.
@@MaxBrix omg I think you're right! I wondered why it was red!!!
11
@@MaxBrix small red gear?
Ohhh snap! That's freakin sweet! I love the open diff used as an automatic shifting mechanism. If you had made this 70 years ago, it would have been on every offroad-duty truck in America.
Well, it's on every offstud-duty truck in Legoland..
This gearbox is so awesome and made me so curious, that i instantly wanted to figure out how it works by replaying the first 15 seconds over ond over again until i got it.
Then i realized, the video actually goes longer and includes a full detailed explanation LOL.
most wonderful part is that, when gear is moved to the gap between diff and other gear, the whole thing becomes like a cvt due to both differentials. so technically this whole concept is a cvt gearbox . Well done, sir, beauty of engineering.
Wait so this is technically a cvt
@@Cobaltthefluffywagon well yes, but actually no. At the time of the comment I did NOT notice that the first differential was not connected to the drive shaft directly. But it's very plausible to create a cvt using 2 differentials.
@@wndrz9742 oh right im learning about this stuff so im not an expert quite yet
@@wndrz9742 Like this ua-cam.com/video/gM_7IkzWvtY/v-deo.html
This isn’t a CVT. there are no continuously variable gear ratios. The ratios are discrete. If you had a CVT it would not just snap into a gear, it would glide continuously between different ratios.
And yet again a guy who knows where he’s talking about! I want to ask the viewers to learn forms these kinda guys whom are showing us tons of informations not asking for loads of money like some of the MOC builders do, but share it with us, free! These kinda guy’s deserves lots of thumbs up 👍 So for this, well done my AFOL friend, thanks for sharing this beautiful video with us.👍👍🇳🇱
That’s impressive!
this shifts smoother than every car i own
I'm glad I found your video. It gives me a better understanding of the Automatics. Thanks and keep it up!
I can see automatic transmissions in my lifetime. Wonderful :D
Brilliant. It's been a long time since I've played with Technic, so I didn't quite remember how the differential parts worked - so it took some thinking to understand how the arm is moved, but it makes sense! Very cool!
The idea of using two differencial for the smooth operation is ingenious!
Не знаю как остальные, но я по несколько раз пересматриваю как круто это реализовано
Now THAT is what Lego Technic was made for
nice compact gearbox! No slipping, awesome
This has got to be the smartest thing I have ever seen on LEGO. Hats off to you, sir
Then you havent seen very smart things in LEGO xD
If there is a will, there is always a way...
Very cool, done with "just" LEGO.
I have too little brain cells to understand anything technical about this but this is an awesome design
I bet you do. Just keep learning!
@@MaxBrix The right attitude.
I thought I was too dumb to be a software developer, then I tried trying.
i learned so much about gearboxes by watching lego videos
For it's simplicity, it's a very interesting piece of engineering.
I've never seen a makeshift 4x4 drive in lego form... This is just brilliant...
Dang that’s super clever
intriguing! now this I can see working on large models. There's a couple of nice gearshift technologies developing in the lego universe. Awesome stuff!
I still want to develop cvt further simply because of the numerical advantage of infinate ratios, but I need to build a working brake. Theory is to use 3 diffs, one as sensor, the others as the two path ways. Then the sensor applies a brake to the high torque side, but NOT locking it. Progressive is the key, and so there are no actual gears moving, and the friction is a factor of the loading, not a constant drag. This way we get all the ratios, with little loss.
Anyway awesome project, I may have to borrow the idea and see where I get to.
Clever
Wow this is super clever, it took me a good while to understand the principle behind this. Might try it one day, when I've found the damn spring.
I have a tiny CVT that works in a car for the next video. Then no more gears!
I wanna see this! hurry up and post it! 👍🍺🍻😀
@@carlbModels The functionality is not quite there yet but it functions.
@@carlbModels and @MaxBrix - you guys ever test a spherical/ball CVT like this? ua-cam.com/video/LWWSCN71jrY/v-deo.html
@@diywalkers7898 hi! long time no hear. Hope all's well? I saw something like that and thought it impressive as a prototype - but for my way of doing stuff I wouldn't post a prototype, I keep I hidden until the big reveal. Ok I did my MK1 walker and posted that before it was anywhere near polished, but that was an exception.
Hello Max! what are your thoughts? 👍🍺🇬🇧
Hey Max - I asked a question clumsily in this thread (I think my comment's alert went to CarlB?)
One of the coolest things I have ever seen!
Great but quite simple, that is the best combination for any reliable mechanism!
Awesome work my friend!
If you make that video just say," While I was working on this I saw this guys video(link). I guess I'm not the only person thinking about this...(or just put it in the description)" Then you can give credit while not diminishing your own creativity.
Nice engineering👍
My favorite design so far :)
This is amazing to look at, as a layman (that's the correct term, I think) like myself. Especially after watching that Jam Handy film on the no-noise transmission.
It's the PowerGlide of the Lego World!! Sick Build!!
Lego should reach out and sponsor a lego kit to make one of these incredible prices of Engineering!
You have made something that would take Lego another century
I think some of the first auto transmissions were 2 speed that shifted down with torque.
popped up in my recommended, gained a sub. good job algorithm and too you my good sir. looking forward to watching ever video!
Very clever and very nice! The only small drawback is that it starts in high gear from a standstill instead of low gear. But it should quickly switch to low gear if the torque is high enough to start moving the vehicle anyway, but there will be a small delay. Thanks for sharing!
Genius. Always wanted to build a manual when i was a kid did not have enough gear but an automatic. Omg
Nice piece of engineering.
That's nuts. Never would I have guessed... With Legos...
You've been hit by
*BANG BANG*
You've been struck by
*BANG*
A smooth switching Lego automatic gearbox!
that's the kind of dude we need to build the new world
MadMaxBrix Lego apocalypse.
The whole idea of using differential as shifters is a nice working example of shifting but wrong at the core of it's idea of raising the force of output. I'll explain it, please stay with me. When you apply tension to the output, differential starts to rotate, transmitting torque to the other path (axle) that is more easy-flown. On that path all of the lego constructors are placing some resistance, as spring, rubber bands and so on. To be honest i've made some experiments too and placed spring suspension for it as it standardised, easy regulated (you can adjust it by choosing colors and therefore regulating a tension) and scalable - you can even put some of them in parallel to increase effect. But what really happens when spring begin to shrink? Torque distributed to shrink the spring till force to avoid resistance at the output will be equal to the force, needed to shrink the spring. If force applied to the shrink the spring became too big (for example when spring fully squeezed, the force grows up to the full motor ability to rotate) - the energy will flow to the output (to the wheels), if output resistance is lower. If the output resistance is big enough too, engine will stuck, not being able to rotate any of differential path. That's it - core principle of differential. It will distribute all torque via two path. Let's get back to the explanation why i'm finding this idea no more than a joke. When spring shrinked more and more gear shifter lower the gear so gearbox will lowering rpm and increase the force on the output, but more and more energy of motor is spent on holding that spring. Yes, the rpm is less, force is bigger, but that force of an engine partially wasted on holding that resistant mechanism whatever it is. So the power transmitted to the wheel became less and less since power needed to hold spring is more and more. I'm not sure about the math model here.
Thanks, This is the first time I have received a comment with that many words. If I ever have spare time I will read it.
You made a automatic gearbox
I’m impressed
Now, if the gear changing gear was attatched to a revolver with 6 different ratios around it in a circle and the sensing spring/load became greater each 6th of a revolution of the revolver, you could make a 6 speed auto box.
This is so incredible
that is actually pretty wild. idk why but i would figure some sort of visible shearing would happen between the plastic gears.
Just found your channel. Nice work!
It's not that I have a single use for this right know, but I have saved it in my random playlist and hopefully will remenber, when its time! Thank you
Amazing!! Well done! Thumbs up from Denmark ;.)
Two minutes ago I didn't know that my life was incomplete.
Smooth gearbox, grindy worn synchros money shift explanation Xd
1diff is analog torque mesuring device. 2nd diff assembly is a 2speed craskgearbox with input from the torque meter.
Smart and compact i like it
One problem would be if the torque required for a slope is where the gear is in between the differentials
Would appreciate a tutorial on building it, i’m to dumb to figure it out from a video and I would like to try it
Nice concept!
Just one Question. Why is the system capable to transmit torque in neutral position (between gears) ? In theory you would have on the output an open differential which wouldn't be able to transmit any torque if the carrier is free once you disengage the 1:1 gear. Might be the friction on the system (specially between red part and shifting gear) that high to braque the carrier while downshifting?
That might be the best question ever. I will get back to you when the beeer wares off.
@@MaxBrix knock knock you okay in there?
Thats amazing!!!
Just Genius!
So feicking unbelievable
faith in humanity increased
You've been hit by
You've been struck by
a smooth
gearbox
Nice job!
That is very clever!
Truly amazing mate.......
Very nice build!
But i think it would be more realistic if it starts in 1st gear and shifts into second gear at a certain speed of the output shaft. You could do that with a simple centrifugal mechanism like the governor on old steam engines.
That way a 3 speed gearbox should also be possible.
I totally agree. I have a tiny one on my community page but it would need to be larger so it could exert more force. I haven't found a way to make one as compact as this.
That’s a fantastic and clever little transmission right there!!!!
Subscribed! Nice work 💪🏼
Nem szoktam legókat nézni de ez technikai újítás és érdekel elképesztő!
Köszönöm
That's a very clever design! I still need to visualize why the arm (that locks the output differential) doesn't oscillate back and forth, from the moment is unlocks the output differential.
oh my god that is genius
That’s brilliant!
Lego is amazing !! Really cool 😎
Honda : hello? Is this the lego company? We would like to purchase some your Lego blocks
Wow that is awesome! 👍
That's really awesome
How a little bit of spring can take a big step . Changing the gray colored 8 tooth gear to a red colored 8 tooth gear would help. The red version of the 8 tooth gear is frictionless so it can slide with ease on the axle
My grey gear is frictionless. But for those that don't like modding, great advice.
Awesome, dude!
Better than all Chrysler transmissions.
Awesome dude!!
Tu canal va a subir como la espuma
I still don't understand why it works, but that's fuckin cool!
Incredible
So genius
I was seeing all the text as corrections and I thought you should write a script and 2 seconds later he "says" I should write a script
WOW 😳🤩 .. I‘m speechless 👍🤙
Clever, nice idea.
nice, thanks for sharing
Thanks for watching
Omg I need to build that right now
Woow, really cool man.
What a beauty
Wow awesome, they should put this in an official lego model.
That would be cool!
AWESOME! I will build it. Should be able to find the parts by 2034.
10 years is about average for my projects.
Incredible! It just irks me that that one gear is grinding on the spring
I have been using some of these gears for 20, years no damage has been done. If you still find it troubling you can add a washer.
A gearbox made this way using a differential in reality what it does is to disipate the effort momentum it doesn't increase the torque in the output shaft...
Wow that's awesome ngl
if i dont see this in a car in the next 20 years then car companies are stupid
Very nice
smoooooth
Sometimes when I listen carefully and don't understand... I know the person talking is super smart... Lolz
It's actually just that I didn't explain it well.
Genius!