World's biggest gear ratio...

[@zenith1047]

There's something like this at the MIT museum (or at least it was a piece there when I last visited): a gear train with massive reduction and the final gear is actually carved out of the stone that it is mounted to. It's impossible for the final gear to move, but the beginning wheels are still able to be turned.

[@Known_as_The_Ghost]

That sounds kinda cool, tbh.

[@saisubdivision3941]

Imagine aliens coming upon this wall that is slightly tilted by a fraction of a centimeter in the future

[@zenith1047]

For those interested, I've found the piece: it's called "Beholding the Big Bang" and it's a bit different than what I recalled (it has been years since I've been to that museum and seen the exhibit). The final gear is embedded in concrete, not carved out of stone, and it's an electric motor turning the first gears, not a hand crank. kzbin.info/www/bejne/jHSkY6qepbJ2pNE

[@spray_cheese]

That’s really cool actually

[@yun-z]

the mechanical flex of all the gears probably compounds up

[@baguette1014]

Damn just imagine the amount of force you would need to spin the last gear by hand and how fast it would make the first gear spin if you spun it from the last gear

[@matthewmaillette]

The whole thing would explode but it would be glorious

[@Godolotl]

Assuming the gears were indestructible and you could apply infinite force, if you spun the last gear, the first gear would be moving far faster than the speed of light

[@baconwizard]

@@Godolotl but as you approached closer to the speed of light, from the gears perspective, time would be slowing down which would inadvertently slow down the rotational speed of the last gear who’s torque is probably enough to lift up the whole universe.

[@Godolotl]

@@baconwizard well yes, but this whole thing is irrational to begin with. I mean that gear ratio is just a "because I can" thing. If you actually could apply infinite force, I'm unsure if you could ever actually reach the speed of light due to time dilation. On the outside it would appear close to the speed of light, but from the 'gear's perspective' everything would speed up. This weird dynamic is why the "speed of light" is so odd.

[@Godolotl]

@@baconwizard but, I'm not knowledgeable enough to keep talking about this subject, that's getting into general and special relativity, which I don't have the confidence to speak openly about. Perhaps someone else will figure out a explanation.

[@collectorguy3919]

You can't spin the last gear, but what gear can you spin from to maximize speed of the first gear?

[@notlistening6499]

I would like this comment but it has exactly 69 likes and I don't want to ruin that

[@blades7178]

I’ll ruin it

[@collectorguy3919]

@@notlistening6499 been there, done that

[@henerygreen578]

you see him spin 3rd gear............thats about it

[@mouse5178]

I’d have gone straight to the last gear

[@pyglik2296]

2:50 It's even hard to understand how MUCH BIGGER this number is. If EVERY atom in the observable universe had its OWN observable universe within it with the same amount of atoms, then the number of all the atoms COMBINED would've still be a HUNRDED THOUSAND times smaller than this gear ratio!

[@TylerPilizota]

Thank you for that, my brain is malfunctioning now but still cool as hell

[@nup5]

as if our universe isn't already mind blowing enough, lmao. thanks for putting this number into perspective :)

[@sean2susini]

🤯

[@kck-kck879]

Horton logic lol

[@mrmeckles9422]

Your scaring me

[@lagcom]

I never thought I’d ever experience cosmic horror from such a small object

[@andysim232]

Crazy thing is, if you could spin the first gear at an infinite rpm, the last gear would spin at infinite rpm too

[@SentinelxPrime]

Idk about that

[@turzilla]

not really because of other mechanical factors

[@nazfx2648]

@@turzilla bro said not really😂😂. The first one spins infinitely so the last moves infinitely end of story. We dont care if it breaks or whatever this is hypothetical

[@turzilla]

@@nazfx2648 nah we do care so not really

[@XtreeM_FaiL]

It would create infinity mass black hole before the last grear starts moving.

[@OGbqze]

It would be cool to see a gearbox like this but with 2:1 gear ratios so we can see it actually working.

[@danankofski5287]

even with a 2:1 ratio the last gear still would take an unimaginable time to move

[@noahc8997]

Great so instead of 10^169 we get 2^169.

[@kkatsuro-bl1zv]

@@noahc8997 how about 101 to 100 teeth gears? then it will be 1.01:1 and 1.01^169 = only 5.37. Am I doing this right?

[@michaeldreemurrandhisaus2165]

@@noahc8997it’s still significantly lower than the alternative

[@joshjones3733]

I'm working on my own insane gearbox using planetary and grinder gears to achieve a ridiculous 500:1 gear reduction per stage. It will only need 63 stages to pass your gearbox. The crazy thing is that the design has an extremely small profile with a thickness of just .25in per stage and an external radius of 5in. The total length of the gearbox will be just under 16 inches

[@MelodicEgghead]

I subbed to you!!! Can't wait to see it

[@turzilla]

thats so sick

[@zema1846]

Звучит как что-то похожее на часовой механизм

[@crandonborth]

Last one will still prolly still make a revolution before GTA 6 is released...

[@concept5631]

'bout that

[@OttoLP]

The last wheel cant actually spin right?

[@CroissantCreates]

After the sun burns out it might

[@AKgamerYTbe]

What if i spin the last gear?

[@AKgamerYTbe]

Well it won't even spin then :'(

[@Oliver-ur5pi]

It can just after the whole universe is gone

[@OttoLP]

@@CroissantCreates no, I mean, since the plastic isn't strong enough.

[@CreativeMindstorms]

This is actually mindblowing! It must have taken a whole lot of time to make this video as well. Amazing!

[@haydarlab]

Try to move the last gear if you can, the rest of the gears will rotate at fantastic speeds

[@CroissantCreates]

Nothing will move because the energy required to turn the first gear is greater than every motor on earth combined. The wheel would need to be built to the size of a planet to not sheer from the force alone

[@haydarlab]

@@CroissantCreates Right, he should lower the number of gears a bit

[@veni2598]

Is not possible! When you play with gears ratio you also play with torque ratio

[@clothinghanger6978]

the about of force it would take to turn that last gear would shatter it

[@Benlucky13]

He did that in another video, but with a much smaller gearbox. Probably close to the highest gear ratio possible in this style without major design changes. He got 1:1200 or so iirc, and that needed a foot long crank handle. m.kzbin.info/www/bejne/lXLFXoehnqylo9E

[@TheAngelChaz]

I would love to see how fast the first gear would spin if it was possible to spin the last!

[@FilosophicalPharmer]

Math.

[@MistahPhone]

You stole his pfp

[@User-qc7gn]

Me too

[@astrouphel]

It's literally impossible for him to do so, unfortunately. But I'd love to see what incredibly reality-warping things would happen.

[@XtreeM_FaiL]

10^169 times faster.

[@YazanMaklad]

Friend: Don't spin the last gear! Me: *spins it just a bit* Universe: *explodes*

[@notlistening6499]

That's cool and all, but actually it is more than likely that friction will cause a good chunk of the gear box to never move at all, and rotating the first gear for long enough will cause some of the gears to simply snap.

[@-Yousof-]

🤯

[@pilbomags488]

These gears would dissolve before it even spun the last one.

[@seephor]

I wonder how astronomical the torque would be on that last gear. Probably enough to move the world in theory.

[@XtreeM_FaiL]

It could crush the known universe into a black hole.

[@Inhale_8632]

in theory it takes more torque to rotate it than there is energy in the known universe

[@kasra.rasaee]

If you have a gear train with such a high gear ratio and multiple gears, there's a significant torque multiplication happening at each gear stage. By the time you reach the last gear, the torque applied to it could be immense, potentially exceeding the torque capacity of the gear teeth or the gearbox itself.

[@808Xian]

Another video in my life of things I don't understand but still very intrigued and interested in.

[@chaplainmattsanders4884]

😂

[@HighNoone]

The mounting points and the plastic will become worn and brittle, fall to dust before the last gear rotates

[@greenneon8534]

If you somehow got enough energy and force to spin the last gear, then you would open up a wormhole at the other end because it would go faster than the speed of light.

[@kishfoo]

This is brilliant! I want to use this for the double slit experiment by adjusting wall cracks to a photons width. This could be very useful in so many experiments.

[@paulromsky9527]

Great video. Too bad you didn't include digits 0 to 9 embossed on each gear as you printed them. Then you could see how many revolutions of the first gear have occurred. Can you imagine the torque that could theoretically be put on that final gear.

[@russchadwell]

Make the entire floor of your garage into a gearbox.

[@chickey333]

How many estimated years would it take to get all the slack out of this contraption before the last gear could even move?

[@TantalumPolytope]

all the years

[@gabriellacastillo-jm2ly]

10^169 secs at minimum

[@anlev11]

1:59 DONT TOUCH THAT GEAR! IT WILL BREAK THE STRUCTURE OF REALITY!

[@grodey3985]

What if they put a really strong engine attached to the first gear and turn it on ? 💀

[@organizeandrise1728]

Next to nothing. He has a video on it.

[@XtreeM_FaiL]

Why use engine when you can easilly rotate it yourself?

[@Michael24633]

What if you used a giant F1 rocket engine with 35 million newtons of thrust to spin the last gear. Or use the catastrophic force of a nuclear bomb to push the last gear, spinning the first gear at the speed of light. You would have to have the last gear to be big enough to actually utilize the rocket or the bomb, and attach a heat shield to keep the gear from burning.

[@-na-nomad6247]

Use a lever and try to turn the last gear, you might need a press for that

[@MicheleRoccapinnuzza]

It could be very dangerous. 

[@-na-nomad6247]

@@MicheleRoccapinnuzza Yes, yes it could.

[@chagmenlietons3606]

10 to the power of 169. That was on purpose. 😂

[@krgbrgh8603]

Shut up nigga

[@garyreed2206]

If I got the math right, if you spin the first gear once per second, it would take 3.17E+161 years to spin the last gear once (I don't think the number with that many zeros has an actual name).

[@MariaNicolae]

In the Conway-Wechsler system which extends -illion naming infinitely, it's 317 duoquinquagintillion years.

[@wolfthorn1]

So thats why my bike dosn't go the speed of light. I put my 200 gears in upside down.

[@justinmccurry9633]

I really want to see you spin the last gear and watch what it would do to the first one if it were possible

[@randomobbiest3893]

You cant

[@farerse]

last gear would break before you could make it to move

[@MicheleRoccapinnuzza]

It could be very dangerous. 

[@originalmplays2297]

To spin the last gear you would need the first gear to spin at the speed of light

[@SpeakableYT]

Spin the last gear

[@wesleyplace5455]

Yes

[@scoop4363]

03NOV2022 - Back in the 1950-60s near Columbia, Tennessee, you could stop on the highway and see "Bullwinkle's Geared Monstrosity." It was made of pulleys and v-belts. Somewhere I still have a postcard from that. I've always wondered what happened to it.

[@-LAWAN]

Please do it the other way to see how fast it will spin

[@jacob.rausch]

That is literally impossible

[@-LAWAN]

@@jacob.rausch I know

[@-LAWAN]

@@jacob.rausch I know I just want to see

[@CodeBlueWiki]

@@-LAWAN a normal human being can only spin the 4th or 5th gear if they are as strong as bruce lee

[@-LAWAN]

@@CodeBlueWiki theoretically if you move it like by a nano centimeter it will spin super fast

[@ShauliTheKing]

Him: **spin the last wheel** Universe: **explode**

[@drsatan7554]

Now make one just like this but with a low gear ratio See if you can get the last gear to break the sound barrier

[@eeveeofalltrades4780]

You can create a black hole with this

[@XtreeM_FaiL]

Why make a new? Think!

[@drsatan7554]

@@XtreeM_FaiL because this one is built one way and to build it the exact opposite would be even cooler

[@XtreeM_FaiL]

@@drsatan7554 Turn it around.

[@drsatan7554]

@@XtreeM_FaiL I don't have it but even if I did the handle would be on the wrong side

[@igxniisan6996]

Lets do some mafhs assuming all the gears have zero mass. So.. light wave can go 186000 miles or 299337.984 km in a single second, now if each teeth of the gear is more or less 3 milimeter in base width, then the circumference of the gear is 36 cm = 0.00036 km. Thus if the gear is spinning at the speed of light then in 1 second, it will rotate roughly (299337.984 ÷ 0.00036) = *831,494,400* times.. now heat death of universe occurs after 1.7^106 years or 8.44656945×10^31 seconds so to make the last gear spin 1 time before the heat death of the universe, the first gear has to spin 10^169 times within this time period, so as each second passes the *first* gear would have to spin 10^169 ÷ 8.44656945×10^31 ≈ *1.2 × 10^199* times. If u want the rpm then we just gotta multiply this by 60 ≈ *7.1 × 10^200* RPM. How many times faster is this rpm than the speed of light? Just divide the rps (s for second) of the gear if it had to finish rotating before the heat death of universe, by the rps if it was rotating at the speed of light. That is, 1.2 × 10^199 ÷ 831,494,400 ≈ *144 × 10^188* times faster than the speed of light....

[@jani00]

It would be fun to calculate how much the last gear turns after the first has made a full turn. It should be comparable to planks length.

[@XtreeM_FaiL]

1st gear have to rotate trillons time to get close to Plank's length. No, I didn't bother to calculate that. Just a guestimation.

[@gakbrax4947]

Spin the second gear is the same way and you’ll get a time machine if you spin it fast enough

[@dumby6483]

Spin the last one, i dare you

[@Xalarh]

Its crazy how quickly exponential returns can get unimaginably huge. A deck of cards is another example. The odds of shuffling a deck of cards and them returning to an order that any deck of cards has been in, is so small, it could be considered impossible considering the combinations made in the past and future. To give a visual understanding, if you were to begin writing the possible combinations on paper with each paper having a new combination, you would stack them up until they reach the moon, then pull a drop of water out of the ocean and start a new stack. When the ocean is dried up, refill it and destroy a single grain of sand. When all the sand is gone, the number of combinations you have gone through are still 10 zeros away from 1/8 the maximum number of combinations. The number of combinations looks like 8.0658*10^67 For a little more perspective, the universe has only existed for 4.36*10^17 seconds.

[@qbitsday3438]

What happens if you spin the grey gear in the 4th Row. will the Orange gear spin faster in the first row ? Just Curious!

[@abhiramaji1782]

Most probably it won't spin. It would require a tremendous amount of force to move it even a little

[@Doubleblade1]

Me: waiting for him to spin the last gear Him: no

[@Finian1]

imagine how fast the first gear would be spinning if you rotated the last gear

[@MicheleRoccapinnuzza]

If you turned it just one thousandth of a degree every 100,000,000,000 years, the first wheel would spin billions of billions of times faster than the speed of light.

[@FlyLeah]

@@MicheleRoccapinnuzza🤯

[@magnuswright5572]

"This gearbox has a significantly higher gear ratio than the number of atoms in the observable universe" Specifically, if every atom was actually a copy of the observable universe, the total number of atoms all together would still be lower than this gear ratio by a factor of 10,000

[@robertidenya1432]

I would have like to see you apply some torque to the last year to see how fast the first one could spin.

[@MicheleRoccapinnuzza]

It could be very dangerous. 

[@TantalumPolytope]

@@MicheleRoccapinnuzza why the ?

[@charlesmynhier2652]

Input torque is multiplied 10 times each stage. There is a friction for each set of gears, and then there is backlash, which would be Hugh for 169 stages, after several stages the torque will be far greater than the teeth can transmit, so this gearbox can never deliver the final ratio. I would be curious to know how many stages it would take to start shearing teeth.

[@XtreeM_FaiL]

Forget the friction.

[@Kardsafox]

I want to see it turned from the last gear but I know that's impossible/ insanely hard

[@NutjobGTO]

That's quitter talk

[@ImMimicute]

I’m exactly the same, I know in theory it’s impossible but it just looks so doable and I’ve never actually interacted with a gear array like this so I lack the mechanical understanding that it’s impossible

[@grandfathernurgle283]

I mean if you could. That first gear would probably create an explosion because the atoms could no longer hold each other together.

[@TantalumPolytope]

its not insanely hard, its actually impossible

[@ImMimicute]

@@TantalumPolytope eh, it depends, if they’re 3d printed gears? Yea impossible, but with strong enough construction and enough force behind it then it is technically possible albeit theoretically

[@legallyfree2955]

Judge, I would like to choose the duration of the prison sentence for my parents murderer. Judge: What do did you have in mind? Me: All he has to do is turn this simple gear, and he can get out of prison once the last gear has done one full rotation. Judge: Seems reasonable

[@skytrooper3537]

Spin the last one, I wanna see how fast it goes if it can handle it

[@Yora21]

It probably just would break, because the gear that is connected to also really doesn't want to move.

[@stevenbeach748]

I once built a pig rotisserie doing something similar. 1725rpm motor to a final drive of 3rpm. The motor had a 2” pulley to a 12” via belt drive. On that shaft was another 2” pulley to a 10”, another 2” to another 10” and finally a 10 tooth sprocket driving a 40 tooth on the spit rod via a chain. I never did measure the torque but it was a lot.

[@AstonishingStudios]

Wow crazy that your gear ratio, 1.0*10^169, is even bigger than 1.7*10^106

[@Sy_hh]

aaaw, I wanted to see him spin the last gear. although I suspect the whole thing would break a few gears down. I think the trick would be to see how slowly you can move it to get the most gears spinning before it explodes. ;P

[@mdylanjournet]

What happen if you try to turn the last gear Does it break ? Does the first gear turn faster than the speed if light ? Or does it does nothing

[@odenroberts7603]

the torque needed would be so high, that it would probably break the gear. so, number 1

[@mdylanjournet]

@@odenroberts7603 allright, thanks for awnsering

[@odenroberts7603]

Take it with a pinch of salt, Im not a physicist

[@thatoneguy611]

If you turn by hand it would just do nothing. With a powerful enough motor, the gears would just break.

[@DacroyleYT]

what would happen if you rotate the last gear first

[@ats-3693]

That isn't a photo of the observable universe, its an image of a graphic that is intended to visually represent or depict the observable universe.

[@60yashrajgupta98]

Last gear moves slightly Universe:Explodes

[@zeev]

now to the inverse toy------a 1:10 gear ratio, how fast can you get the final gear moving before it breaks apart, or something breaks!

[@bencarignan2711]

What I want to know is, how fast could it spin if you turned it from the other end? Please attach a power drill to the opposite end and let us know how many rpms the other end spools up to. That would be a fun follow up:)

[@thefish5861]

@@TheDabEnthusiastGaming So you're saying there’s a chance?

[@admiralbeez8143]

I like the rear ratio vids in reverse, where the lowest gear is turned so we can see the super fast rpm at the other end.

[@simonriley6198]

Really wanted too see it all turn 😩🤣

[@adammullins7000]

This gives the term "don't start something you can't finish" a whole new meaning.😂

[@sirzorg5728]

I've always wanted to see someone make an insane gear down paired to an equal gear up.

[@truthsmiles]

The reason it wouldn’t work (on this gearbox anyway) is because even with the fastest motor in the world spinning the first gear you’d die long before you could even get all of the lash (slack) out of the gear train. You’d never see the “gear up” side move at all.

[@lindenschwarz101]

I'm still waiting for someone to make a bicycle outta this

[@petit.corbeau]

What if you built a gear box that scaled back the rotation ration to the original gear and then set the original gear in motion by an external gear and a lever?

[@XtreeM_FaiL]

Same as now. Nothing, but you could rotate both ends at the same time and even different direction.

[@biscuitsalive]

“Here is a photo of the observable universe” XD. That’s not how cameras work.

[@deepakpanmand]

Plz create a dedicated channel for this gear box and livestream it with running mode

[@lizroga3348]

I challenge you to tell me 1 utility of this machine:

[@chadmichael1773]

The torque at the end should be wild. Put a brushless motor on the input, and spin it up. You could make a TON of torque with metal gears and a super small electric motor.

[@d.dizzy1]

Bro has used more rolls of filament on gears than I have owned in my entire life.

[@theboz1419]

I would assume each gear would be around 10 to 20g. Using 20g, that would be 4 rolls of plastic, not including the base. I use about 3 rolls of PETG per week.

[@d.dizzy1]

@@theboz1419 Couldn't imagine, i've had the same four rolls for like a year now. My printer's hotend fan exploded so i'll be using even less for about a week.

[@ShayminLover492]

So let's get this into perspective: Let's assume the first gear rotates at 1 revolution per second. At that pace, it would take 10 seconds to spin the 2nd gear by one revolution. The 3rd gear would take 100 seconds, or just over a minute and a half. The 4th gear would take 1,000 seconds, or just over 16 and a half minutes. The 5th gear would take 10,000 seconds, or just over two and a half hours, and so on. Once you reach the 6th gear, it's already gonna take over a day to rotate it, and the 8th gear will take nearly four months to spin. Spinning the 9th gear will take just over three years, and you won't even live to see the 11th gear make one full rotation since it will take just over three centuries to fully spin. By the time the 17th gear fully rotates, the solar system will have completed one orbit around the Milky Way, and the next supercontinent, Pangaea Ultima, will have formed. The sun won't survive to see the 19th gear spin, since it will have died and become a white dwarf long before then. For the 170th and final gear to rotate, it would take 3.169x10^169 years. What if we worked the other way? How fast would the first gear spin if you managed to rotate the last one. Firstly, assuming that it takes 30 g to spin the 1st gear, it would take 300 g to spin the 2nd gear. To spin the last gear would require 3x10^170 g (3x10^167 kg), over 3x the weight of the entire universe, which means you would literally have to channel the power of the multiverse to spin that last gear. Now let's talk about speed. Assuming a radius of 20 cm, that would lead to a circumference of about 63 cm. The 1st gear would spin at 0.63 m/s (2.27 km/h, 1.42 mph), and the 2nd gear would spin at 6.3 m/s (22.68 km/h, 14.18 mph), and so on. The last gear would theoretically end up spinning at 6.3x10^168 m/s, or 2.268x10^169 km/h. Considering that the speed of light is roughly 300 million m/s, or 1.08 billion km/h, this last gear would be spinning at well beyond the speed of light, completely destroying the very laws of physics that we're operating by.

[@notjerel6144]

Legend says he’s still trying to get the last gear to spin

[@hillbillyjim7880]

What happens if you turn the last gear to try to turn the first gear that fast?

[@anlev11]

It would require so much force that even if you put the weight of the entire universe you wouldn't be able to turn it. Actually if you put too much force the gears will just break

[@lamanasantamana9859]

Shoutout to the guy who photographed the observable universe

[@LTFiresaw]

Imagine the torque that thing has.

[@abhinandansharma5151]

I have calculated that if we move the gear at the rate of (299792458) per second at the speed of light from the begging of the universe (around 13.8 billion years ago there are still 7.648499 x 10¹⁴² years left to move the last gear once

[@BreadStapledToTree]

You should try to make a clock using this gear ratio.

[@stefanp4258]

In such gearboxes you need to make gears and bearings stronger with each step, to convert high speed into more force instead. In your gearbox, the last gear has exactly same strength than first one, so it will break instant if you attach something heavy to it.

[@AndersHaalandverby]

Well, if by "instantly" you mean after the heat death of the universe then.. sure.. It will be hundreds of billions of years before the last wheel moves, at all.

[@stefanp4258]

@@AndersHaalandverby But the nearly infinite force generated is already present at the last gearwheel, therefore nobody can turn it, without breaking it.

[@TalRohan]

Something that is weird to think about is just how small the movement per second is...because if the high speed end is moving then the low speed one is too just so slowly you probably cant even see it under an electron microscope.

[@ПавелСмык-т7ц]

Have you tried attaching a load to one side, and a generator to the other, for example, so that the load drops in 24 hours providing electricity? make a semblance of a gravitational power plant?

[@daytona2786]

2:39 who made this photo ? maybe its just a picture , not a photo >?

[@nerfjanetreal]

the desire to rotate the last gear myself got so big that i tried to grab it through the screen

[@webpa]

This is at least the third version of a "million year" gear train I've seen on YT. Most colorful version, though.

[@tombittikoffer412]

We all want to see you try to turn the hardest gear before it breaks.

[@Yoggoth]

Try modeling this in Fusion with all the motion links and then try spinning the last wheel.

[@kensmith5694]

It is possible to get much greater rations with much fewer parts using "grinder gears" AKA "differential gears" Imagine two tubes with teeth on the inside. One tube has 100 teeth and the other has 101 teeth Imagine a cylinder 2/3rd the size of the tubes that has a step in its diameter. One part has 66 teeth and the other has 67 teeth. If you put the two tubes end to end, lock the 100 teeth on in place and then force the 50/51 tooth cylinder to roll around the inside, you get a ratio of 66/100 - 67/101 = -297:1 If you make more teeth or make the cylinder closer to the size of the tubes, you can get very big ratios. You can then cascade them like you did with the design you did to get huge ratios.

[@Pit_Winder]

now we might have enough torque to open the pickle jar

[@geemy9675]

just wondering, with "unlimited" budget, access to the best materials and machining tools, strongest and lowest resistance "aerospace grade" ceramic bearings, surface treated gears, axles, what would be the highest ratio/number of gears you could achieve that could be rotated from the slowest gears..I guess the best configuration would be using lightweight gears and lowest resistance for the fast spinning gears, and thicker/stronger/heavier gears/bearing for the slow spinning ones. I'm sure it would be quite amazing to see..this looks more like things I did with Lego technics when I was a kid.

[@grandfathernurgle283]

That bloody gear box could probably lift earth.

[@sharonbradford4494]

Imagine the torque coming off the last wheel like I’ll be so strong. They were literally like flip like I don’t know probably train cars.

[@rsmstudio4634]

Someone should make this thing out of stronger materials and try to move the last gear!

[@jefftank3300]

Ignoring the laws of physics and just working with the numbers, if we were to assume the diameter of the gears are 16cm and the last gear is rotating at 1 RPM. The linear speed of the first gear would be approximately 1.006096*10^163 times faster than the speed of light in meters per second. Or 2.1744×10^82 mph

[@williamludvigsen8601]

I guess if I get a Delorean and I put this gearbox into it, it's basically a real version of the "Back to the Future" one :o

[@cristianroque9770]

I’ve done the math, and with your electric motor at 5300 rpm, it would take 3.589788x10^159 years to get the last gear to spin once. And for the last gear to spin within minutes, the first gear would need to spin at 10^170 rpm.

[@Randomperson0467]

How long did it take to print all of these

[@EtzEchad]

You could break the speed of light by simply taking the last wheel and turning it by hand. By running it backwards, each wheel would turn ten times faster...

[@IvorEyess]

What if you got a million people to crank a lever that’s attached to the final gear. Lol just my imagination being weird again