How Slow can LEGO go? | Comparisons
Ғылым және технология
Hi everyone,
I've seen a lot of videos about making a car as fast as possible, but barely any about making it slow (for a good reason). If you just want to know how to get more torque, I'm showing some designs, but I had a lot of fun (inspired by the one and only Randall Munroe) driving this to the theoretical minimum and searching for comparisons along the way.
I hope you enjoy that different type of video,
2in1
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Links:
Rebrickable (part list and .io file):
reb.li/m/172573
reb.li/m/172574
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Timestamps:
0:00 Intro
0:06 1:1
0:27 8:1
0:55 64:1 - 1b:1
2:47 9b:1 Car
3:08 Googol and beyond
3:33 Driving it backwards
4:00 Thanks for watching!
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#lego #technic #vehicle #mechanism
Пікірлер: 72
My takeaway from this is that an ant (theoretically) could traverse the globe in less than 15 years time 🤯
@otter5293
4 ай бұрын
If it lived more than two days
"So, how much torque should our Lego car have?" 2in1: *" Y e s "*
@davyzeradaspalmera
4 ай бұрын
"well why doesn't your cars move?" "Let's just say i have a bit too much spirals"
@oldhorn420
3 ай бұрын
@@davyzeradaspalmera "uhhmm akshually it's called a worm gear" 👆🤓
@davyzeradaspalmera
3 ай бұрын
@@oldhorn420 "umm, akshually, you missed the fact that the joke is not supposed to be that obvious"
Those fun facts were dope
That's some high quality cars! Tesla should make smth like this
@fansdecide
4 ай бұрын
Yeah, definitely
@bobertgamz
3 ай бұрын
Rather than making really boring evs
That is probably almost enough torque to pull a semi trailer if the parts could survive. XD
@in1
4 ай бұрын
If the parts, connections and ground grip were infinitely strong, it would definitely be able to do that. Just very slowly.
@buck45osu
4 ай бұрын
Medium motor has .12 Newton meters of force, 1 Newton can in a frictionless environment can move .225 pounds. A semi truck fully loaded can be 80,000lbs. 80,000lbs/.225= 355,555 newton's of force needed. 1.1bill x .12newtons of the motor is 132 million newton's. Or 371x the force needed.
@janhansen554
3 ай бұрын
It can move anything, just ad 1000, and i think u can move planets or stars but not practical at all...
@aka5
3 ай бұрын
@@janhansen554 "Not practical at all" is the understatement of the century xD
Feedback: I love it, do make more 🧡
@TheaLorraine
4 ай бұрын
are you a toaster
@bowfuz
4 ай бұрын
@@TheaLorraine I get that alot hehe. Earthlings call my "species" Lowpolygen, but my native species roughly translates to "Kin"
@TheaLorraine
4 ай бұрын
oh@@bowfuz
Nice illustrations! Keep on going ! :-)
Totally amazing! Amazing that we are so near of the unlimited world! Out of physics, we are in philosophy with this simple machinery: 10 exponent 144!This deserves to be in a museum of science. Great!
I built a similar setup, but without the motor, and it achieved a complete standstill. So very slow indeed! ;)
Now go as fast as possible!
@II_Faither
4 ай бұрын
2in1: Okay Also 2in1: *Creates a black hole because the car is too fast*
Hello, fello Randall Munroe fan!
When using worm gears, I've noticed they always have a little bit of play back and forth on the axle, like they're a tiny bit shorter than two units. That means when a worm gear spins, rather than transmitting torque right away, it has to screw itself up the spur gear maybe a millimeter, until it hits the barrier, and only then can it start driving the next pair. Given the exponential growth of the ratios, the amount of rotations needed to clear this gap also increases. Until every single worm reaches it's "locked up" position, the car can not start moving. How long would it take for the car to start moving in the extreme case where every single worm gear is as far back as possible from it's locked up position?
@in1
4 ай бұрын
That problem should be fixed because I've used an axle with a stopper and the worm drive is pressed against that stopper using the 8 tooth gear. For the last few cars I just assumed there are "no tolerances"
I guess you could call this "how slow can LegGo?"
physics for engineers :D
At 3:44 is a mistake. Light speed is 300 000 000 m/s if the speed in the box is correct it’s 20 times the speed of light and not only 2 times
@in1
4 ай бұрын
You're totally right, I was pretty tired when I wrote those boxes. The image is correct, but both the gear ratio and speed have an extra "0"
@tronsl3014
4 ай бұрын
@@in1 yeah all fine can happen I just thought when I saw the velocity looks little bit more like only two times 😂 if it would be possible to spin it that direction be careful not that universe explodes when you reach 20 times light speed 😂
Bro write to nasa, they'd probably pay a lot if you showed them technology that goes to the edge of the universe in 4 seconds.
@in1
4 ай бұрын
real and true
Going into deep physics is not what I expected. I thought that you would calculate out the limit where these additive friction forces overcome torque.
@in1
4 ай бұрын
In theory these forces should definitely be big enough, since every transmission 8x-es the strenght. It still wouldn't move anyways though, that's why I've purposefully ignored wear and "wiggle room" in the video.
You have to try the opposite now! the fastest speed you can, that would be awesome!!!
so if you can go that slow and it would take a life time (most likely I would be near my death by it moves like a MM) so if it can do that why not reverse witch way the motor gets inputted meaning speed of light?
@in1
4 ай бұрын
Interesting idea, but sadly there's a pretty simple reason why it doesn't work: Having an 8:1 reduction makes the output 8x as strong, but an 1:8 transmission reduces the strength 8x. In other words, there would be no force strong enough to power that car. Especially because screws are designed that they can't be driven backwards.
Most efficient energy wasting machine
This clip needs Anders Enger Jensens' music
noooo i just missed the livestream....
3:47 If the speed would be 6 000 000 000 m/s it would actually be 20x the speed of light since the speed of light c≈300 000 000 m/s. 2 * 300 000 000 = 600 000 000, ten times less than the value you claim.
@in1
4 ай бұрын
Yeah, that is a mistake. Didn't sleep much that day :)
Please don't put text at the botto of the screen. You can't read it as covered by bloomin KZread graphics.
@in1
4 ай бұрын
Oh, that's a good point. But I guess that's also the case for the top, and I can't really put it into the center. Thanks for the feedback tho, I will try to put it a bit higher
Another one And an another one
The answer is obvious: 0 rpm. Just turn off the motor.
@josephj807
4 ай бұрын
He said moving. That would be not moving
@BrickDesignerNL
4 ай бұрын
@@josephj807 Anywhere the wind blows ..
Thats a lot of torque, you should test how much it can pull.
@in1
4 ай бұрын
That would probably simply make the wheel slip, axles bend or gears break
@Drpaper1
4 ай бұрын
@@in1 oh
@micahanglen4331
4 ай бұрын
@@in1 You could try making a super beefed up chasis and add some weight on it (to prevent the wheels from slipping) and see how much weight a single motor could pull with extremely high gear ratios.
tectonic plate live action
Imagine the torque of those things
This is very frustrating; The premise is: how slow can a Lego car go; yet this isn’t demonstrated until The very end !
Dude...
A billion NM
the video even loaded slow.
This can't be driven backwards!
lol. if it was driven backwards...
now do fast
Music is boring pls dont add the music, and we want more long videos
@MRtrax1000
4 ай бұрын
I like the music, without it, it feels a bit odd. If you don't want the music, just turn off your volume
@randomengine5300
4 ай бұрын
its nice though
@randomengine5300
4 ай бұрын
@@MRtrax1000 true haha
@in1
4 ай бұрын
Well I've asked for feedback, but I don't think removing the music would make it less boring. Still waiting for that multi language audio feature to roll out for all creators, then that problem should be solvable.
@mathieudevos9420
4 ай бұрын
This is so funny. I rarely comment on KZread videos. I watch it on TV. I don't have the option to comment via my TV. But now I thought, let's tell Mr 2 in 1 Bricking that I like the music and that it has a Pavlovian effect on me. 😂😂 . But I do agree on the longer videos part. And maybe the duration of text information on screen could be a bit longer. Watching you building AND reading the text at the same time is not my strongest point.