Testing Lego gear and pulley systems - part 2
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- Опубліковано 27 лип 2018
- Last time we passed 100 kg, barely. This time the target is 200 kg. Hopefully I won't break as many pieces as last time. The purpose is to generate the maximum possible lift force with a single Lego PF Medium Motor.
Special thanks to Imanol BB from Eurobricks with his pulley block design done with Lego Digital Designer.
www.eurobricks.com/forum/inde... - Наука та технологія
The string is the unsung hero. Never breaking. Never wavering. Always stalwart in its pulling power. Hail the string.
Elderran it doubles strength every time it goes over a pulley
@@Joe_Jenkins404 the string strength cannot multiply, really. The stress on each gear is just being diminished as it's being distributed amongst them
SAVAGE TUNER it’s exactly the same concept as putting more parts of line in a crane block, I’m a crane operator, we don’t add gears when we need to make heavier lifts, you add more parts of line, so for example with only the headache ball my crane can lift 15,700 pounds, if I run the cable through the block once and tie the dead end back to the back it can lift 31,500 and so on up to 10 parts of line where it can lift 160,000ish
Elderran is the string made by Lego?
Joe Jenkins that’s because it has enough power it doesn’t need the gears, this thing wouldn’t need gears too if it had the power of your crane. But it has a small electric motor so it does need the gears. I’m assuming...
At gym:
"Dude, even a lego crane can lift more than you!"
That's kinda sad....
@@trevorvallo5841 that actually is way more sadder than I expected, my friend.
Crane
Cran
@@the486kgman2 bro if you'r arms cant bench 100 kg each then you are disabled
Everybody be chillin till they realise it can lift a family of 3 up.
not sure, if it American it would a different story
@@kazuya4133 Well over 4 of me
same
@@kazuya4133 made my day lol
@@kiruuttori8539 same
Wife: Honey, the garage door isn't working.
This guy: **sigh** let me get my Legos.
Made my day
LMAO!!!!!!!!
I do that everyday
Lol this is true garage door are surprisingly heavy
Good one haha
Legos lifted a damn quarter ton... just let that sink in for a minute.. 🤯
An M motor no less.
flunoin Stop doing the company's work for them. The company only says that to protect its trademark because if people start pluralizing it, it becomes generic much like bandaids. You are allowing a company to control language.
a ton is 2000lbs. they lifted an 1/8 ton
you sure you are converting kg to lb? because my trusty calculator says 226kg = ~498lb. and that is about a 1/4 of a ton
it was in kilograms not lbs (about 498 lbs)
One of these days...
"Man successfuly landed on the moon using legos and one medium lego motor.
Sasquatch ......No one is gonna care about this but I will waste a breath anyway....the plural of Lego is still just Lego....not Legos. Seems to be an American thing to add the “s”.
Contessa Adella Under a descriptive view of linguistics, simply being in wide enough use makes “legos” a correct plural.
Under a prescriptive view of linguistics, “lego” is completely incorrect. LEGO is the brand, not the toy. The proper term would be “LEGO bricks,” and yes, the capitalization is important.
@@contessa.adella as a simplification of the other dudes comment, if you are going by common vernacular, saying "Legos" is perfectly fine. if you want to go by the official usage, "LEGO Bricks" or "LEGO Pieces"
@@tonyhakston536 You are also supposed to italicize it and add the trademark symbol (according to lego) but nobody does that.
about the original comment, it looks as though he is using pf medium lego motors. These take 850mA to exert ~0.011J. To get to the moon, you need about 290652000000J of energy (2.90652*10^11J), meaning that unless he were to run his motor for 26422909000000s or approx 837000 years, he wouldn't be able to use enough energy to get to the moon. For reference, 850mA*9V=7.95W of power. Multiply by time, and you get an input of 2.0213525*10^13J or approximately 100 times the amount of energy required to get to the moon. For reference, this is how much energy is generated by a large power plant every 3 hours. Based off this we can assume that unless he has access to his own power plant, or 837000 years of free time, he would be unable to use a lego motor to get to the moon. Nevermind the dynamics of how he could get to the moon. How would a motor be able to get you to the moon?
I understand it was hyperbole, I was just bored
@@ammyvl1 The "how" is easy, a giant sling. Because he can't really generate thrust in-flight (unless there are more slings within the craft that shoots out bricks repeatedly, but that's probably less efficient).
Mind, I don't mean sling in the traditional tension sling way. Any kind of mechanical device that can first store up energy then release it "explosively" to propel an object to high speed would be fine. The real problem, IMO, is that this type of launch would generate significant acceleration, probably in the hundreds of "g"s which will likely be deadly for a manned craft. Continuous thrust flight have less of this by extending the acceleration period and that's already very torturous. So there need be either a way to preserve life on high-g, maybe cryo, or there need to be a way to provide continuous thrust after all. But then there will be need a way to store mechanical energy on-craft, which can only be tension based I think (whereas ground based launcher can use gravity storage) and an efficient brick launcher on board.
I'm not entirely sure what mass you are using to estimate the energy required to reach the moon, as the amount of energy required is directly proportional to the mass of the craft. That said, I would say that the craft would not be particular energy efficient either way. Explosive launch means very high initial speed and therefore drag, will need additional energy to compensate. Whereas continues thrust will probably deal with lots of energy loss in the transfer from storage to brick launcher(as well as additional mass of craft as a result of the storage and launcher devices). So we will probably need a significant multiplier on the required amount of energy.
So I would say that overall, this is theoretically possible but practically not really.
There is the alternative method of space elevator based stuff but... I don't think lego would fair well in the extreme conditions of space (or rather, upper thermo, iono and exosphere). The extreme temperature gradient alone will likely break it.
"Haha that's neat"
**notices scale is in kilograms**
498.5 lbs... thing could lift me AND my good twin.
@@dridiennydaral5579 what about your evil twin?
@@Ammid13 I AM the evil twin. My goatee proves it.
well that's logic
Alexandre Man damn straight
Not sure what is more impressive: A single lego motor that can lift more than 3x my weight or the string holding that weight.
Blockinstaller12 it’s more like 12 strings holding that weight
the string isnt really a secret. .....
@@aibekamankeldi4898 "it’s more like 12 strings holding that weight" Or like x-thousand fibers. Technically it is only one string... Wrapping string around something for more strength doesn't make it more strings.
The sound of LEGO bricks being built is so satisfying...
And the sound of lego bricks bending and snapping under the load is... heartbreaking...
freako
I find the sound of lego bricks bending and snapping under the load even more appealing
The supplier is rubbing their hands, replacement parts.
And the sound of stepping on a Lego is painful
3 years later : A man succed to lift a truck with legos
アレキル honestly, I'm waiting for someone to lift a 6 or 8cyl car engine
most 6 cylinder engines weigh less than 220 kg now in days. block internals and heads only that is.
*lego
imlivingketchup it's legos
Matt nah Lego is plural and singular
'Oh man, my brick broke...'
*Slaps a 1 x 4 plate on the bottom and calls it a day*
If you aren't endorsed by Lego, there is no justice in this universe
I know building a rig to do this would be somewhat of a challenge, but I would really love to see this lift a person... to kinda put into perspective the power of gear ratios.
Love all your content, man. Keep it up.
Oh hey it's the legend himself
Nigel Hall haha, thought nobody would recognize me this far out 😂
I would like to see this as well... cant imagine that a tiny Lego motor can lift me up... twice!! Its amazing. Good stuff for kids as well as education. Lego makes it interesting 😊
Beef Stew what legend ? 😄
Edwin van de Vijver Gear ratios are a awesome thing!
His videos in 2025 be like:
"Building a full size elevator from lego"
The Elevator at my home was built 1913 and it can carry 300kg so this is already extremely close
@@Wobbelgenerator Yeah it would just take a couple of days for each floor.
@@Wobbelgenerator The weight of the elevator is 454kg up to 2722kg + what it can carry. so 454kg elevator can carry somewhere 200-300kg or 1.5 americans, so you would need 3 of those lego motors just to carry the empty lift up and down on the slowest speed and you'll need 2 motors to carry things like humans (1 extra motor for the safe keeping cuz it's made of focking legos) Of course you could just make the lift with light weight materials or like legos, but it will for sure fall apart
@@Wobbelgenerator and compare the size of the lego engine with the 1913 engine lol
^^using only the string from the video
Dude could lift me and my dad using a lego technics motor.
@Dylan Prothero I doubt that it could lift your mom
@Dylan Prothero
r/whoosh
@Dylan Prothero Damn, some really don't huh?
@Dylan Prothero The joke flying past you must be doing mach 226.1
@@voltsiano116 joke flew over you like a fucking comet holy shit
so this finnish man is telling me...
some legos and great engineering can lift me?
holy fuuuuuuuuck
You weigh 500lb? I think you just literaly broke a world record...
@@dukem8774 dumbass
Dukem I think yo mama did long ago
Really, Larik?
Using Horrid Excuses Of Jokes That Were Made Eons Before All Of Conceptualizable Existance?
@@indeepjable Sir, i admire your choice of words.
WTF? With one single motor? That's amazing!
duevil its not a test to check how much a lego engine can lift up, its a test for the transmission
1 Unbekannter Yes, that's true but it's powered by a single motor anyway.
You can lift any weight with any motor. The question is how fast it lifts.
Leon Weigel I have to admit that I'm not really into mechanics but the motor didn't seem to be very slow.
It was, in fact very slow.
Impressive. Doubled the previous record, if I recall correctly.
Bisqwit watches Lego pulley videos! Awesome!
Someone who is drawn to programming seems to like iterative improvements of systems i guess :P
@konstantinub Who wouldn’t! It is also obviously inspired by Hydraulic Press Channel :-)
Oh damn its Bisqwit in the wild. Do you still drive the bus?
Nope, the company downsized massively because of bad luck in competitive tendering, and I lost the job. That happened about three years ago. I am now doing something different.
So what moves this elevator?
Legos
wait a minute....
Hol' up
2:22 that was so damn satisfying
Im just gonna come out and say what we're all thinking.
When are you gonna lift a human?
yes but all he's ever actually used it on is the scale
TriBop i
Wichiguns no shit dingus
Yea thats a good point, can easily see any non-vertical forces causing shit to fuck up badly
My first thought was "pirates"....
i would suggest turning your your motor setup 90 degrees and turning it into a worm drive setup instead of a geared setup. the cranes i work on at work utilize mostly all worm drive setups to lift hundreds of tons. also you might want to use a larger drum surface for the ropes with multiple wraps on each to spread the load and increase you lifting force. nice work though keep it up.
He tried snake gears in another vid but they are not as effective, my guess is worm drives are for having a really strong construction that is relativley small, not to get more capacity.
He is working without lubrication. Since wormgears have very high friction he probably wouldn't get very good results with those. But it makes sense to use those in heavy duty machinery.
worm drives are mainly used for safety. gears are by far more efficient when it comes to friction.
to do heavy lifting, you usually just take more tackles. you can lift anything, no matter what gearbox or how much torque your motor has, as long as theres enough tackles to distribute the load.
This is what I'm thinking too. Worm drives are relatively high friction (at least with lego plastics and no lubrication), but it's hard to beat the ratio it can provide.
On the other hand, if Lego made strain wave gearboxes....
Stev W worm screws are tresh
This murders my powerlifting ego
I felt like that a bit too. Fucker can bench 500 pounds. And it's made out of parts you can snap with your hands
Just remember, that motor could only lift ~3 kg with no pulleys or gears. Just imagine how many cars you could pick up with the same setup
@@kunstderfugue well actually it can deadlift 500, which is a bit easier
@@Kevin-dt9xm Actually deadlifting 500 seems doable if you bodybuild a lot. That's like a mid sized motorcycle. Hmm, interesting.
@@dominiclutz4583 The catch with getting such tiny engines to lift that much weight is that because you have to use gear ratios, it's going to take FOREVER. Possibly months. So it's not particularly practical, but very cool.
the moment things go wrong and you sit at heaven...
in the waiting area...
and the man next to you asks you: " and? what happened to you?"
all you could say is: "well, got killed by lego shrapnell flying trough my room when i was trying to lift a ton with one motor"
😂😂😂
Imagine a Lego pice flying fast enough to loge itself in your head
i would love to see a practical demonstration of this, it actually lifting something, and not just a scale
Installing new elevators to some apartments?
At 226 kg, it could easily lift 2 people.
Since it can lift almost 500 lbs, you could theoretically pull an engine from a car provided the setup didn't tip over.
Could easily lift up a person.
Sonic FanXD
Lifted a quarter ton.
"Give me a lever and a fulcrum and I can move the world", well... give me a system of pulleys and a fixed point and I can lift the world
It's ridiculous to see how much torgue a simple lego motor and some technical engineering can do.
It's literally a level of someone pulling something out of their arse to make impossible, possible.
Give me a long enough lever and I'll stop the world spinning.
before there was fire and electricity, there was mechanical advantage.
@@TAPriceCTR You need more than just a lever, you need a fulcrum and a place to stand.
These videos combine my 3 favorite things; Legos, Experiments, and ASMR!
dude i was amazed and never tought lego could do so much weight lifting and u even show multiple gear system this really cool.Keep it up my man really enjoy watching your video.
200kg with one motor
this crazy XD
i guess more isn't really possible anymore without cracking (destroying) gears and pieces
is there some sort of guinnes record?
Use more gears and you can lift anything.
More gears
@Omega Stick Lego has changed
METAL GEARS!? @Omega Stick
More gears and more load distribution and it could theoretically lift anything.
You just multiply this over a larger array of pulleys.
‘Do Not Question The True Power Of Legos’
An alternative title if you don't mind 😉
This is my new favorite UA-cam channel! Idk how there aren't more subscribers. I never got the ASMR, but this works for me! lol Plus the videos are just mesmerizing in general. GREAT content!
Are you making sure the voltage on the motor is constant? Because in the videos you are using the default battery block and they will get weaker over time.
No, I didn't check the voltage. And I used the same batteries throughout the video. Yeah, that surely may have affected the results.
@@BrickExperimentChannel this means with new batteries you could lift 100kg more :)
So if you get steel legos and motor it carry 1976.kg an Quagrapika Half
@@genevieveesplana6950 steel legos AND aluminum rods. Just need the gear upgrades now
You only need about 20 of those Lego pulleys and you could lift a god dam truck that weighs around 4000kg+
Bearing friction prevents you from scaling it into infinity. chaining 20 pulleys would be rather counterproductive xD
@@papajavaleri On the other hand, you could have 20 of those assemblies
@@papajavaleri im a little late but he meant them each lifting their own part of the vehicle, not all of them on one string
@@tylermitchell185 Yeah, I've realized that just after writing this comment but I couldn't be bothered to delete it XD
One of the most satisfying videos I've seen in YT in a very long time. Great stuff.
Wow this is sick! Not the content I was looking for, but the content I needed.
Can't believe it you are making a comeback
Now if you can make a swallow carry a coconut...
Joe Average dang, beat me to it
It’s a small world, ain’t it?
African or European
Are you suggesting that coconuts migrate!?
@Joe Average I don't know that
If the bowing in the middle is an issue, try doing what old medieval buildings did with their joists. They extended the joists out over the exterior of the wall and added weight on that end of the joist, creating a counter-balance system to stop the joist from bowing due to the weight of people and furniture in the upper floor. This is one reason why medieval buildings have slightly larger upper floors. It's called "jettying."
I'm binge watching lego videos.
I haven't touched a single lego in 10 years.
Haha same
That’s illegal. Both of u guys are sentenced to death
Timelapse is just so satisfying
Edit: And I am also impressed that how strong lego really is
why do you think it's so expensive? :P
What? I didn't
i was implying the high quality is why it's expensive
I love these videos!
Awesome freaking videos dude keep it up
Random guy: 'So where did you get your engineering degree?'
This guy: 'Oh, yknow, Lego HQ.'
That moment when LEGO can lift more than an adult male.... feels bad.... like stepping on LEGO barefoot in the dark...
Fuck threatening to abandon somebody in a desert of legos! Just threaten to draw and quarter them with a couple of these bad boys
Mom!! I changed my mind. I wanna be an engineer.
Is that your new main now ¿
Interviewer:what are your qualifications
This guy:-"LEGO"
This is hands-down the best lego vid I ever saw, even if it was my first.
Now I know how they saved the man who fell into the lego city river xD
8:34 Now that's a lotta damage
225 kg lifted with plastic
_It's not that much damage_
**not sponsored by flex tape**
Really cool and unique content man. I just discovered you. Subscribed.
“Yeah, what’s wrong with using LEGOS to lift you up a skyscraper. Like they totally won’t break.”
Now just use an XL motor instead!!!
@Jerry Eicher fabricate metal lego😂
Meh, both wrong. All it takes is weight distribution into proper gearing. A model train can move a real train with enough pulley blocks and dental floss.
VoltisArt I’d legitimately like to see this.
@@VoltisArt this comment is actually incorrect.
VoltisArt i want to see that. I won’t say it’s impossible, I just really want to see that.
This contraption could nearly pull engines from hondas. Hah, I'd be first in line to buy it!
This was an awesome watch
When I clicked on this video, I did not expect to learn that a Lego pulley can lift much much more than I can deadlift
Nearly a quarter of a tonne of lifting power with lego, what a time to be alive
Me: 226 kg wow that’s a lot
Me after converting to pounds: (•_____•)
Yeah that’s like 400+ pounds!
498 lbs. Almost a clean 500. Jesus.
A large motorbike.
As someone that fits the world view of an American, I cannot believe this thing would have lifted TWO of me. Fuuuu.....
CertifiedCarNut it can carry just under 10 of me
Amazing! Very impressive!!
It's clear that the way to handle heavy loads with legos is to distribute the load over a number of points of support without too much friction. The most a single bearing can take seems to be 20 kg-ish, and the friction at such bearings presumably increases a lot as you start to plastically deform the part. Nice design.
Did somebody say *TORQUE*
Dude, you should make a simple mechanical computer
Hahahaha..
a turing bomb. but then he'd need to close the channel cuz there's no topping that.
U confused mechanics with electronics buddy
@@odyseuszkoskiniotis6266 well old computers were simple machines made of cogs and gears
@@odyseuszkoskiniotis6266 computers are just logic gates. You can make a computer out of basically anything, there's marble powered computers
When you get old and can't walk anymore, just build a Lego pulley system that can hoist you out of bed onto a Lego permobil. That would be something!
Those are impressive figures!!
Imagine what your kid could do to the cat with this :)
Man builds Lego crane able to lift a small car.
Luke Diggle VERY small car
gerbizzlefoshizzle very small? An average car is 1.5 tonnes and I'm sure the next iteration can get 400kg, the smallest car is light enough to be pulled by hand so it doesn't even have a reverse, a larger one could definetly be lifted
Luke Diggle 1.5 ton is 1500kg, or 7x more than what the lego managed.
I'm not saying it's impossible to build something that can lift a car out of Lego, cause you can - it will just be sloooow and large. But a 250kg car? Go Google the Renault Twizy. That's a extremely small car - that's 400kg. Caterham 7 - 545kg. KTM X-bow - 800kg. Look at the Smart Fortwo, and how it started at 730kg on MK1, then increased to 780 for MK2, and is at 880 for MK3. Look at Kei cars from Japan - they're typically all in the 600-900kg weight range. It comes from needing structural integrity for safety, and either heavy batteries or an engine block and transmission case from cast metal.
250kg is more like a heavy motorbike than a car, and before someone invents a very light, very stable, super energy dense fuel cell for electrical propulsion.
Luke Diggle Sidenote: It's not the curb weight that is most important factor to wether you can push/pull a car by hand - it's driveline friction (after gearbox, naturally). The ground will take care of supporting the weight, and the wheels keeps it rolling.
@@mr_gerber thank you, for some reason I never got these notifications I just happened to come back to this video, but yeah, I'd imagine though since the amount of weight seems to be roughly exponential we could expect 500-600 kilograms in mid 2019 and that would be enough for 6 people, 2 motorcycles, and 1 small car, all of this is just estimating though, there is a chance that he can't even find stronger enough string or enough attachment points, the gears themselves begin to break or the motor can't turn anymore, there's no way of knowing with something like this.
Everybody gangsta until Lego can lift a panda
We can get a small lego motor, able to lift 500lbs but we can't figure out away to make it turn a generator to create electricity.... Lego is the future.
"how to destroy lego using lego"
Soon he be able to lift 500kg and later 1000kg
Thats what I was exactly thinking XD
And then 2000 kg
then the video of lifting a car
If he want to lift that much he gotta use gears and stuff that are made of steel
Tony Venvik I don’t think LEGO will be strong enough to lift dat weight
It's unbelievable that the 8t gears survive that load. In my transmissions, they're always the component that cracks first (if the are no U-joints, that is).
Great video. ☺️
This can easily lift my motorcycle (104kg)
Let'sFlo it’s mind blow if you think about it. Imagine if you see it happen
Τάσος Περόγλου i would try it
you mean bike with you on it? xD it will be less than 226kg i think
Unless he weights 180 kg alone lmfao
40/8*24/8*40/8 + sextuple tackle :-) I'm curious what will happen :-D
This is so satisfying
There are no boundaries for perfection!
Me: i like lego
UA-cam: yes
can you do the same tests but then with a xl motor plzzzz
Lego's structural integrity is absolutely insane.
This channel shows how engineers should test their designs with Lego before building a real life version
How much you spent for the 220kg+ build’s lego pieces
P.S. are you an engineering student?
Hmm. Probably 100-200 euros. All pieces are bought from bricklink.
I WAS an engineering student. Now I'm a software developer. :)
Brick Experiment Channel k cool thanks for replying
Brick Experiment Channel you are genius man. I can’t find any other engineer build something like this before.
@@BrickExperimentChannel
I've always been interested in pullies like this. Is there a tutorial on UA-cam on how to design these pullies correctly? How about you make one?
So where's the video of you getting lifted by a Lego elevator?
OH MY GOODNESS GRACIOUS!!!! I never could’ve imagined that Legos could do that!
This man is a TRUE brick master
Very cool design! Where do you get your pieces from? I can’t find any good websites to buy the gears.
X15 Gaming try to go to bricklink
Hey why not use worm gears to increase torque?
They would break the gears ;)
Worm gears are very inefficient - Lots of power is wasted on friction.
ok, but they still increase torque though
Under such immense torque, the tooth friction against the worm gear would be so great that it would struggle to rotate.
If the torque doesn't straight up rip through the worm gear, that is.
So does the round gear, but with much less friction. Imagine this: You input 1000 rpm 1Nm on a worm gear and output 10 rpm 20 Nm - You've increased torque 20 times... But also lost 100x the speed, meaning that only 20% of the work is transferred on the output. (in other words: 80% of work is wasted on fighting friction). That's just an example, worm drive efficency varies depending on many variables, but they're inherently inefficient due to the sliding action that takes place between gear tooth and worm. There is minimal sliding friction between spur gears. Additional problem: Worm gears create thrust, gear wants to be pulled along shaft so you need to compensate for that - Another friction point against brick that will hold the gear in place.
kind of amazing to think that a small lego motor could lift up to fully grown men with ease
Genial amigo un buen trabajo con las poleas 😁✌️👍
*When lego can lift more than you.*
Make it bigger.
More gears.
Its crazy thanks for vidéos
Me: Combined with Eurobricks, this crane is better than ever!
You: “Or is it?”
Me: …Or is it?
You: There it is.
🤔 extreme budget shop crane.
So you could literally lift a person with this ??
Two possibly three depending on size.
Most people don't weigh quite 500lbs, so yeah. You can lift a car with dental floss tied to your pinky finger, given enough distribution of weight.
@@VoltisArt you'd just have to walk half a mile...
It can lift 3 of me so.. 😅
Gears and pulleys are like straight up magic
„Hey man, can you help me move?“ - „Sure, let me grab my legos!“
That's just under 500 US LBS!!!
Thank you for using normal measurements
@@Whaiesh3827 "normal" lmfao
@@Whaiesh3827 you mean alien?
Murica, cuz we just had to be different in the strangest ways
Try to use XL-motor, it’s slower but more powerful
Фиолетовый Ананас nah that is cheating, the whole point is how much can we get from *THAT* motor.
The xl motor has an inbuild m-motor with gear ratio attached to it so it would'nt change anything
@@felixniemand4921 is it metal or plastic gears?
I love this channel
Engineering and simple machines are a beautiful thing. Cant believe you managed to lift a quarter ton with a few pieces of plastic and tiny electric motor.