Lego Car Suspension Testing Device
Vložit
- čas přidán 15. 05. 2024
- Building and testing a high speed Lego Suspension Test Station including 3 chassis with different types of common suspensions used in real vehicles
Chapters:
00:00 Suspension Test Station
05:49 Stop Button & Speed Computer
06:43 MacPherson Strut
07:21 Semi-independent Rear Suspension
08:20 Beetle Chassis
10:17 Torque Tube
11:10 Leaf Spring Suspension
12:45 Testing Suspension Systems
18:51 High Speed Test
BuWizz 2.0 Bluetooth controlled rechargeable battery box - amzn.to/3Ht7epw
BuWizz Motor - buwizz.com?ref=155
Camera used for this video: amzn.to/3Hxisci
Please note: I get a commission if you buy via Amazon or Buwizz link above.
Where I get my parts: www.bricklink.com/v2/main.page
#bricktechnology
#legotechnic
#oddlysatisfying
#lego
#asmr
#suspension
#buwizz
#engineering
#SuspensionTest
#speedbump - Věda a technologie
Check out the motorcycle version: czcams.com/video/UuQxctEQhLA/video.html
can a system like Citroen's hydro-pneumatic system could be made out of legos??
Ы
Yer like that other guy who uses mostly red. Love the content style and both of ya make very interesting stuff for people like me to consume. Thank you for the content you make
Will you put up building instructions for this treadmill? I would like to build my own for idle use
@@eshanjadhav3489.
I love how it doesn’t have some loud obnoxious music, but instead is literally just the sound of it being built.
I sleep to these 😴
This is the best kind of ASMR (this channel has the tag #asmr)
So True
me too
Did you mean to spell sound or is Lund a word? Also, I agree with your statement, sometimes I'd like to hear the clicks than the music.
This is simultaneously the coolest and most ridiculously over engineered thing I’ve ever seen anyone build out of Lego
Welcome to the youtube rabbit hole
you should see the 6 gear manual transmission he made out of legos. it made my brain hurt
@@solomonshvit made your brian griffin hurt?
What about the life size pneumatic car with an air powered engine? That was crazy! The ball machines are pretty wild too!
must be German
As a tank enthusiast it was really interesting to watch you encounter and slowly develop all the crucial parts of a tank track system. Track tensioner, return/idler wheels, guide teeth. That's my favorite part of your videos: the troubleshooting.
same here. was really cool seeing that
Same as you two
Same as you three
Same as you four
TheChieftain would be proud.
Love literally everything about this. Favorite part is learning about the different types of suspensions and how they react. I can’t see how you can make your content any better. I love how there’s no music it’s all just the sounds of the legos themselves. I immediately love your content and can’t wait to see what else you have!!!
As a vehicle mechanic, I can safely say this is a fairly accurate representation of how these suspension types act on real vehicles. I like how the bump steer and camber / toe angle changes are exaggerated during suspension jounce and rebound. This would be a great teaching tool for apprentices in trade school
Ford bronco with the twin I beams suspension
@@chachachaudhary391 you old Fudd only the older broncos had that shit setup. It's a good 2wd design but 4x4 nope
@Muggy
Springs are literally metal bending in a not damaging way, so, perhaps?
As one trying to be a car mechanic that had been through the basic course of the education (Danish) I can agree. I would love that we had this so we better can understand it in working order. But on the other hand, my school still had parts from cars that teacher's used to explain things for us. The school even had a cut away, ish, vehicle with engine able to run (From electric power) to show how the power comes from the engine via the gearbox and the the driving wheels
@@tacomas9602 my 90s f150 has it, it's on a lot of rangers too.
I actually find it so interesting as to how he just..... Makes these machines. Cars. Whatever you prompt him, with enough time, you'll have it tested to perfection by him.
Probably has a degree in mechanical engineering
Hej
@@frostypotatoking5663 and he uses it in the best way possible!
Life size car o.o
Like a redstone master…For you Minecrafters out there.
17:16 reminds me of school busses, in the front is “op, did we hit a bump?” In the back it’s “DEAR LAWD DID WE HIT A JUMP!?!?!”
Because school buses are big and heavy so they need a strong leaf suspension
I'm amazed at how accurately you've recreated the road just outside my house
To be even better it should have some holes and craters but close enough hahhaha
Nice contraption, you should make a car with pneumatic suspension, using those small transparent blue Lego pneumatic cylinders. If I remember correctly, they have very low friction. Also you can use them as shock absorbers, pairing them with normal Lego shocks and connecting their inlet to their outlet directly with a short tube, so they basically work as real ones. And you can make a hose-pinching system that allows you to control the airflow through the tube, as in switchless Lego pneumatic compressors.
@Majeed's Gaming sometimes his genious... it generates gravity.
Sounds like you could make them!
@@sammythewhammy69 I have very little experience with Lego pneumatics. Maybe I could build something like that after some parts shopping and R&D
They wouldn't work as shock absorbers(dampers technically the spring itself does the shock absorbing), air is compressible and is springy so works for springs, you want something non compressible that you can restrict the movemnt of to damp the springs, "gas shocks" only have gas in to keep the liquid under pressure to stop it foaming.
@@popuptoaster I know, but with friction from the cylinder shaft bushing it might work to some extent, maybe you could fill them with thick oil or something with high surface tension so they don’t leak
I love that instead of simply removing links to tighten up the belt, you engineered an extremely complex and dynamic workaround. Great job, I sure wouldn't have thought of that!
the definition of over engineering lmao
He tried; it was too tight.
Why avoid a track tensioner? It isn't a workaround but an appropriate system and solution.
he did, the differnce between one link was too tight/loose. So instead of rebuilding the whole frame he added a tensioner.
This is how belt sanders work
I would love to see this setup with actual fluid filled shocks and scaled weight, like an RC trophy truck or something. It's jarring how much bounce there is in the lego "shock"
12:49 Lego equivalent of the irresponsible dad from happy wheels
Would love to see a comparison to a verhicle with NO suspension at all. Because this still looks quite rough to a vehicle layman such as me, but I imagine no suspension would just break the vehicle or simply not work at all. But at least then we'd have a reference , a 'base line' to compare the other suspensions to.
Great work.
Love this format; all of the complexity and entertainment value is in the builds itself - this doesn't require flashy editing, annoying music or narration. Very refreshing compared to most channels.
I want to throw my hat in and second that.
As somebody with an older style tractor, I second this. Back wheels are bolted straight to the trans, while front is just a panhard without springs, basically a free floating bar.
I’ve worked with cars for quite a while now and I can tell you that suspension is definitely doing it’s job, but I can also say that it’s not really designed to deal with those bigger bumps. His second test with the small bumps is most likely what a normal passenger car would experience on a standard road and you can see how little the body jumps around. The reason it still bounces is because shock absorbers on a standard car have oil in them with different size chambers and valves with different resistance between them to dampen the bump and reduce bounce. The shocks he uses are just springs and no oil to dampen the shock.
The car probably needs more weight to reduce the apparent effect of the springs.
it is quite rough but these bumpers were literally rectangles the size of the sidewall, hitting them in a real car would destroy the wheels.
I spent countless hours of Lego building with my two sons and I can’t wait to do it again with my grandkids!
Why wait? Just do it yourself. I had my largest lego collection as a bachelor. I just find it real peaceful and it's fun building something with your hands.
@@lambdalambdalambda257 u still a Batchelor or with a fat girl?
@@lambdalambdalambda257 well sometimes its more fun when you build legos with someone else especially kids cuz they got creativity
@@papyfun5097 Playing with Legos with kids is fine. But not doing a Lego set unless they're older (8+). If they're younger then 6 you're going to be pulling your hair out if it's a big build.
@@lambdalambdalambda257 agree
This is incredible. I can't imagine how long it took you to research, build, record, and edit all of this together. Amazing
19:36 Samir, you're wrecking the car!!
I'd love to see more types of suspension, maybe ones from f1 cars or those from trophy trucks, see how they compare to these daily driver type suspension
Watch a comparison of a traxass UDR (or losi baja rey) vs arrma Mojave (or any fully independent short course truck) there's some downright phenomenal scale RC vehicles out there with true to scale performance! I know it isn't Lego but let's face it, Lego isn't remotely close to realistic lol. Hell, these fantastic Lego designs would have handled so much different with real oil filled shocks instead of the springs mounted to telescoping plastic pieces - no dampening at all.
@@Lord_Pistachio_Nut yea have seen them and know how they work and act, but I'm just interested in seeing how the lego not only differs to the real thing but to how it compares to the lego suspension in this vid, I have seen some small scale suspension but nothing really lego
YES
And a motorcycle would be cool
Twin traction beam would be really cool to see, pretty popular option for trophy trucks.
I normally can't stand ASMR-type things. but being an avid LEGO fan since childhood. the sound of the bricks and technic pieces being put together brings so much satisfaction and nostalgia.
Some ASMR videos are cringe, some are good, some are neutral, some are enjoyable
*And then this dude comes in with the crown*
Let me know what you think down below in the comments section 👇
Sometimes, when I build, I take the time to hear this satisfying *click*. I guess I do it more often then I should x)
13:00 Man, I *FELT* those bumps in my _back_
2:20 really liked that mechanism with use of linear actuators
Probably my favorite part of this channel is how they show the complications and issues in the process of building, then (quite literally) build a solution to the problem, instead of cutting out any imperfections entirely. Lovely how they keep the realism and show that there's always a workaround ^^
You don’t know what he cuts out though…
@@AjokeiguessOr she
@@_Vark_ 0:18 yes, because women have that much arm hair. (Obviously a guy)
@@Ajokeiguessthey could identify as female, please dont assume gender
@@_Vark_ if someone asks me to call them they, no problemo, it’s not hard and it makes them happy, but if you think there’s something wrong with looking at a person and assuming their gender, you have a problem. It gets annoying, and besides, it’s incredibly obvious this is a guy, and identifies as a guy…
I love that you show how you improve stuff not just the finished models. And that audio is just satisfying.
Even before getting to the car, it’s already amazing watching you build the suspension test system. Good job!
2:35 "Alright guys i did some off-camera grinding" really great video tho lmao
10:07 :
"Cons: wheel camber"
*You have provoked a gang war*
PRO’S none pro2 none
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
i`d be very interested in a second part, where you test other more modern forms of suspension. e.g. phneumatic or with a shock absorber etc.
It's fascinating just how close to reality you can get with some plastic bricks!
And the imitation of the leaf springs was spot on, lots of jumping
Oh this was amazing to watch, the tuck suspenison hold out so good.
would love to see the Citroen 2CV suspension on this test rig (with the front and rear suspension connection system)
The VW beetle front suspension was so interesting, we are so used to seeing the two arms perpendicular to the wheel, these are parallel
This is very fun to watch, and it's a great way to show how exactly the different suspension types used work. This is something I could watch over and over again.
'Sup Tesla dude. ツ
Remember hearing about your inventions, such as wireless electric transmission. But yeah, I love this channel, he is similar to the Brick Experiment Channel. I wonder if he could build a Lego Hydraulic suspension using vegetable oil or something.
This guy's living the life I wanted as a kid.
This stuff brings me back to my childhood, when me, my father, and my two brothers had this whole little town set up. We had a house for each of our lego characters, and we kinda played it like it was a DnD game, just without the dice. We used to come up with stuff our characters had to try to get done and everything.....
Now, these videos make me want to repair my raspberry pi and get one of those NXT things with all the sensors and such. Screw it, I'm almost 30 and I still play with legos and I am not ashamed lmao
.... this also gives me horrible flashbacks of dealing woth conveyor belts on a packaging line... haha
00:00 Suspension Test Station
05:49 Stop Button & Speed Computer
06:43 MacPherson Strut
07:21 Semi-independent Rear Suspension
08:20 Beetle Chassis
10:17 Torque Tube
11:10 Leaf Spring Suspension
12:45 Testing Suspension Systems
18:51 High Speed Test
You're one of the few channels that I actually have notifications on for. Keep up the good work.
How do you get all of these Lego parts?
No pothole testing?
Pop
can you please make in more in depth tutorial on the cars suspension??
I wonder how an official lego set performs on this testbench. Like the Land Rover Defender or the F150 Raptor!
Horribly most likely, as they are meant for kids to make and play with, or adults to have on a collectors shelf. Which means they do not have realistic suspension, and most of the time are just stiff
Or the Ferrari as high as it is, it might flex too much though.
@@flatdrpepper212 the official Unimog lego actually uses the panhard rod setup in both axles, and several other models do replicate real suspensions, like the double wishbone. Some do it to a greater extent than others, but Shampo0o's idea is possible
@@gianluccasimao oh, ok thanks! I'm not a collector not builder myself, so yeah. But he more ya know right? Thanks! 😁
Would be sooo interested in seeing this!
19:10 POV:Indian Speed Bumps
18:07 in trucks, the robustness of the axles often transmits shock to the nearest weak links--the ball joints and wheel bearings. Amazing that you managed to simulate that
In the first bit I absolutely loved the way your track wasn't right so you show the entire process of redesigning your build and other mistake along the way just to overcome a simple problem, very cool stuff
I don’t know who is more impressive; the engeeniery behind all the suspension system or the threadmill by itself, both of them are awesome
Great that you display the iterative design and build process. Super fun to watch and helps to understand how to approach engineering problems.
This is extremely cool. I think the best part is the way you've filmed this, each shot has the faint 'click' of lego joining lego, it's really something. Great job.
10:52 didn't even know it from cars before, man Legos are so helpful to understand
Omg thanks for the heart!!
15:08 Volkswagen- Das Auto
This guy has every single piece I ever needed 😅
I love that even the errors are shown alongside the solutions. Engineering isn’t just about finding an answer, it’s a process.
I realize I'm late to this party, but that's exactly what I love about these videos too.
This builder has shown that they clearly know enough to design these "errors" out of the build ahead of time. But they show us thru them to demonstrate the iterative process that IS engineering.
This is amazing. Also nice to see how the front tires usually drive over all the stuff while it seems like the rear tires often collide with the bumps and shock the whole chassi
That's basically how it feels to drive a truck with a solid rear axle. The front axle wants to go over, the rear axle wants to go through.
This brings back childhood memories from 45-50 years ago. I used rubber band as springing medium and Lego Technic didn't exist yet. Great fun, great video!
I Love the sound of lego bricks being placed
That high speed test is genuinely one of the funniest things I've ever seen, that had me in tears 😭
13:08 was hella trippy. I thought you were doing some crazy camera work for a second there.,
15:24 sTaNCe bRo!
I love how he displayed the evolution of suspension technology via test/error (most likely what previously manufacturers went through) step by step. Through. Legos. Awesome channels - keep it up!
19:30 A Formula 1 In A Road Of Dirt
I love the detail and thought you put into the suspension designs tested! I would like to see how a Double Wishbone suspension would perform in this rig.
probably terrible, it's kinda designed for smooth roads and high side loads. Bumps upset the steering but also gives you great feedback about how much grip the front wheels have.
And now, a lot of people are going to understand why Jeep kept the live axle setups for so long 😁
Any chance of mid sixties Chrysler A-body setup? Live axle leaf rear, unequal length control arm front with longitudinal torsion bars on the lower control arm.
The engineer in me was so happy when he didn’t stretch the track, he built a tensioner. Beautiful.
Didn't come to this video expecting a lesson in common suspension types, their strengths, and weaknesses over the the past few decades, but here we are! Delightful.
It would be so neat to see a Trabant suspension system, it uses transverse leaf springs front and rear
So that’s what is on the Corvettes?
Would also love to see dual wishbone independent suspension on all four sides, which are used by modern luxury vehicles and supercars.
@@SylasG Corvettes definitely do in the rear, not sure about front
Maybe an airbag suspension systems. Don’t know how LEGO can make that though
@@thecommentingstug Some lego pistons and cylinders could do something similar especially with a little oil
"both sides are now synchronized"
And that's a sub. See ya at 100k!
Lego Technic looks a lot more inspiring and it gets you to like solve Mechanical Engineering Problems such as all of this, For example:
- Tester Too loose
- Breaks all the time due to a misplaced piece
- Hearing a weird noise while running it
- Conveyor breaks all the time due to a contacting piece
- Anything you put on the conveyor doesn’t fit under the conveyor
Those problems are kind of common and it’s like a mind testing thing to learn of mechanical engineering to fix them, Once you learn to make machines like this guy does.
The best part of this video was the sounds because it’s so satisfying
Awesome! Definitely explains why going over them speed bumps at higher speeds makes them seem more manageable 😃
I was really surprised the one with leaf springs came off instead of the leaf springs breaking. Really good job with the build design on that one!
(I mean, they're all great, and beyond my capability.. but the leaf spring one was the most surprising. It also worked better than I thought it would - which I guess is why large vehicles still use them.)
Large vehicles use them because they are really stiff, they are cheap and so sturdy, if you need to add a lot of weight you just increase the number of leaves, they are really hard to break and also the little swinging mechanism takes the first impact in order not to force the leaves too much, in a nutshell: leaves take the job of the coil spring and are widely used for large trucks because they are really hard to break or fail
19:03 is like mater on the so called "new road" in the first cars movie
One thing you can notice between the different suspension types is how under- or over-damped they are. It seems like the damping is left up to chance, mainly based on the friction of various joints; it's the spring coefficient and sprung mass that is being adjusted in most instances. The combination of mass, spring coefficient, and damping coefficient will result in a different resonance when subjected to a perturbation. If there is too little damping, you see repeated, decaying oscillations, as in the third vehicle (rear leaf spring chassis). If there is too much damping, the suspension doesn't have enough time to compress and the vehicle moves with the bumps, as in the second vehicle (VW beetle chassis). With just the right balance, you see maybe 0.7-1.5 oscillations, such as in the first vehicle (compact cat chassis with weight added).
In addition to the damping factor is also the bandwidth or cutoff frequency of the suspension. The suspension acts as a low-pass filter, allowing the vehicle to follow slow changes in height (with some delay) while absorbing and cancelling out fast changes in height. As the speed is increased, you can see how it goes from bouncing a lot and following the bumps, to oscillating over them with a amplitude hopefully less than the amplitude of the bumps themselves.
Finally, you see how both amplitude and frequency contribute to the instantaneous force. As the speed is increased, eventually the peak forces are too much and break apart the chassis.
Great video. I'm tempted to try to estimate the damping factors and peak forces for the various cases. :)
We all just sitting here watching a dude play with Legos REALLY well, and I think that's awesome
Absolutely awesome! Well done.
Just one thing I noticed the beetle chassis had a great amount of bump steer at the front, the outer steering tie rod ball joints needed to be lower on the spindle/hub assembly, this would have stopped the bump steer.
Great video!
It seems hilarious to me that when running over the thicker bricks (would probably sound funnier if I knew the name for them), it simulates a Lego person being run over lol
Lol
Would love to see a pushrod and double wishbone too! Maybe a solid axle coil to compare to the solid axle leafspring
With all those clicks and clacks, the sound of this video is so damn satisfying and soothing
15:13 how they made the slime sound in minecraft
This is brilliant! An accelerometer on the seat and you've got yourself a proper test bench!
a phone would work !( properly attached)
Awesome job as always. I especially love the clicking sounds that you leave on the video instead of playing music. (Super satisfying) So Good Job!
No music, no fake personality, this person gets it, just show us what we want
I was mesmerized, the building process, the clicking of the parts and the level of techinical skill...and the high speed shredding of the chassis to top it off
Great work!
It would be cool to see what effect castor angle would have on Lego suspension, fully independent double wishbone would be interesting too.
I just stumbled on this channel and even though I have no idea what’s going on it’s incredibly satisfying to see the process! The amount of knowledge he has is crazy
Steering issue of Beetle suspension was solved in ZAZ-966 and 968. Also in Beetle it was made different - steering consists of 2 triangles with steering box in the middle. Also you can see similar 1936 Cord suspension that eliminates bump-steering. And Citroen 2CV - that eliminates front-back tilting but has a body roll))
Also an interesting alternative to McPherson is Lancia's sliding pillar suspension, which was as well used in Morgan 3-wheeler for decades
This really highlights the importance of preload in suspension to be more effective at smoothing bumps. The springs were too stiff for the lighter weight but appropriate for the car with weight added.
This was so much more interesting and entertaining than I thought it was going to be. Great work showing off some engineering with legos
The sound of Lego coming together is the best ASMR you will ever hear.
14:27, this is smoother than 99% of the roads I drive on in Poland xD
I can only imagine how much fun you had doing this… When the first little man fell off and you wrote RIP I burst out laughing… Later you continued to disintegration pretty cool. I'm sure you had a blast thanks for being here
Watching how the suspension works was so satisfying! Incredible build!
czcams.com/video/n83AS67RdZU/video.html
I loved making torsion bar suspensions from Legos they always performed phenomenal.
Dude really…………. This video WAS SO COOL……….
I’m an automotive engineer and playing Lego Technic since I’m 5-6 yo (was in 1985-86), you cannot imagine how much I enjoyed your video!!!!!!!!!
Especially because I was working on different types of suspensions since I’m around 7-8 yo!!!!
This was an absolute fascinating subject to me!! Then transmissions, differentials………
I’m 100% sure you feel me 😄
And I have to say the different suspension systems are so ingeniously transcribed into Lego!!!!!
You’re VERY talented, thanks a lot for the video 😃
Big salut from France 🫡🇫🇷!!
ViNZ.
Watching engineers playing is so satisfying
Hm
I love how this video doesn’t have music, music gets annoying after awhile. Good job 👍🏻
Love the vid, it's a great demo of the designs and should be in any automotive/kinematics class. A couple of notes on the suspensions:
- Leaf spring is cheap and easy to beef up, hence why it's still used. The space it requires is not a concern on pickups or actual trucks
- Camber will change on every suspension with load and it will also change slightly when the wheel & steering knuckle assembly moves up. Double Wishbone minimizes that change and is therefore preferred for performance cars
- Another way of setting up torsion bars is seen on early 2000s Tahoes, Suburbans, Lexus LX series, and old (60s-70s) Mopars - the bars are oriented longitudinally and are attached to the lower control arm, which itself is part of a wishbone suspension. You make use of the wasted space between frame rails and you can adjust them much easier from the bottom of the car - there's a giant bolt about 1.5 cm in diameter that adjusts and holds the tension
now i wanna see what no suspension does, this is amazing, this is the kind of stuff i always wanted to build as a kid, like big lego mechanical stuff like you, but i never had the knowledge or bricks to do it. you sir, are amazing
16:53 damn that's a real car's suspension
18:19 Hungarian roads be like:
I love that your solution to making a perfect length belt is making an entire actuation system for the wheel to attach to so you can tighten it yourself
Literally the only asmr that I can not only listen to, but enjoy and not feel the need to punch people in the face.
Two points to consider. Try softer tires. The hard tires causes the everything below the shocks to have unsprung mass which may contribute to the wheels breaking off.
Also, I really like your step by step approach. You start out each assembly simple and small, and equally important, you gradually step it up in size and complexity allowing you to see clearly what works and does not work. Then this allows you to learn all along they way.
I am fascinated with every aspect of this video, from the designs and builds of each part of the suspension testing rig to the cars themselves, but I cannot ignore the immense comedic value pf watching those cars being tested on insane amounts of bumps at ridiculous speeds and I was laughing really hard at the end but like... laughing for science 😂
It’s so cool how they can take apart everything they’ve just built to make it better, makes it look so easy
the nine stud technic link is actually great for leafspring suspesion, because it is slightly flexible
I don’t know why but this was one of the most enjoyable videos in a while
18:55 This is how it feels to drive a car on czech roads.
This was an amazing video! I love the real world lego connection! If you still have your system set up you could try to see how different wheel base length affect the suspension also! This was just so fun to watch!