DIY Phone Charger

[@RealEngineering]

“Better than anything you made”. Going for the throat Tom 😂

[@nomercyriding]

Yea holy cow i was like someone call the fire brigade

[@jakobfindlay4136]

i love william but cmon his whole shtick is "oh so swanky janky"

[@TheNinj47]

@@adrunkskeleton9046 Regarding Nobel Prizes per capita pretty much the entirety of Europe is far ahead of the USA. Not that it's important but i say this because i guess it hurts you.

[@Essa_Mabry]

YOU KILLED THE KAT

[@kiq4767]

Almost mentioned you in the video 5:14

[@thezenith3515]

Set it up to a bike and generate while riding

[@robjones1328]

exercise and electricity

[@gistasbanaitis473]

He can just do it using generative braking with his electric bike

[@sirsanti8408]

@@gistasbanaitis473 why not both?

[@franksworld9922]

@@robjones1328 exercise and electrify.

[@Champo0]

The cat is not dead unless someone looks into the box...

[@rkan2]

What's in the booooox!!?? What's in the booox?!

[@air-headedaviator1805]

Philosophy saves the day once again!

[@CheekiScrubb]

but its both dead and alive

[@lazergurka-smerlin6561]

@@air-headedaviator1805 More like quantum mechanics

[@zachmaster426]

We can't know that for sure

[@christiangeiselmann]

The obvious thing to do is attach it to a hamster wheel.

[@ogi22]

There was once a special, unlimited power device. Just a crank shaft with a cat and a sandwich attached to it. Simple physics - cats always land on their feet and sandwich falls always the butter side on the ground. If you put them together back to back... and skew it on the crank shaft, you have unlimited rotation and power for anything you want ;)

[@azzazz430]

@@ogi22 Not unlimited energy though. It's jus conversion.

[@jetaddict420]

@@azzazz430 bruh its a joke we all obey the laws of thermodynamics

[@pineapplepizza5733]

@@ogi22 then the cat dies

[@gibsonf06]

Or.. You know... A $5 American plug

[@siddhartaperezrodriguez3238]

How about the complete opposite? Charge the phone by releasing a weather ballon

[@larryscott3982]

Or both. Down by weight and up by buoyancy

[@charleslambert3368]

Are you releasing a weather balloon or dropping a load of air? See: helium balloon in a car.

[@siddhartaperezrodriguez3238]

Fill a big balloon with helium, tie a string to the charger and let go. 4 hours later, phone charged. How long can the balloon keep going up vs dropping something?

[@larryscott3982]

Just use a much greater weight and very high gear ratio, ie: a clock work. Higher output generator too. Probably can’t use 3d printed plastic.

[@siddhartaperezrodriguez3238]

@@larryscott3982 yeah but the weight has already been done, it's too ordinary now. I'd like to see a big red balloon. That would be a cool world challenge, weird ways to charge a phone

[@asliceofbred4882]

4:57 "They had us in the first half not gonna lie"

[@Soimherefrfr]

yuup

[@TheOfficialCzex]

You really freaked me out with the cat carrier.

[@nathanaelfertich801]

I love cats, it scared the crap out of me

[@KetansaCreatesArt]

The video shot cuts after 4:59 .... If you understand what I mean, you will be freaked forever and probably unsub... 😨

[@hansdietrich83]

@@KetansaCreatesArt wat?

[@lawnmowerdude]

There’s clearly no cat in it. Do you really think they would record themselves dropping a cat form two stories?

[@TheOfficialCzex]

@@lawnmowerdude Thanks, Captain Obvious! I totally didn't watch any of the video after that point so I absolutely didn't hear Will say anything about not actually having the cat in the carrier...

[@clayboi6939]

-William has joined the chat. -Practicality has left the chat. -William has killed the cat.

[@loen9591]

Lol

[@nubyup]

181 likes

[@sirbreadstick5664]

@@nubyup not any more

[@Pwn3dbyth3n00b]

You're the only person I know who would buy a 1 star rated product on Amazon

[@AbhishekThakur-wl1pl]

Lmao so true.

[@mwbgaming28]

I'm surprised he paid nearly $40 for it, I bought one of those on ebay ages ago for $4

[@RobinDobbie]

Can't go by how many stars something has. You might see a useful description of how something's poorly made in a review, but those are known to disappear now, too. So you basically can't put any faith in Amazon's review system. It's corrupt.

[@mwbgaming28]

@Zane Zuccaro the one I bought off eBay worked for all of 5 seconds before literally flying apart

[@duronboy2]

Could you not?

[@Azzie492]

maybe if you use two water containers 180 degrees apart that self emptied on reaching the ground you would only have to keep refilling the empty one as it reached the top. You would also need to apologise to the ground floor tenants for flooding the area.

[@Nighthawkinlight]

I think you could make this work reasonably well if you used an entrapment to lower the weight MUCH more slowly, and a coil spring to buffer out the release of the energy from each entrapment click.

[@IndraKurniawan-vk2qb]

Maybe you could make your own version, i would love to see it :)

[@TomStantonEngineering]

Agreed! However, even if 100% efficient, the gravitational potential energy required to charge a phone is a lot, and therefore very unfeasable

[@MaxUgly]

Someone do the math, please! I mean, would it be like a small truck lowered from the Eiffel Tower?

[@mads7790]

@@MaxUgly You would need between 32 -34 kJ of energy. Which is equivalent of dropping 102 kg 32-34 meters. And this would be at 100% efficiency.. You would need to lower something like a french bulldog from the the Eiffel Tower.

[@matrick1356]

@@TomStantonEngineering what would the voltage output of the gravity phone charger be? im doing the math fro @MaxUgly

[@slatetechnologies1724]

“Better than anything you made.” I think that would be something that Tom would say to Simone Giertz.

[@barronrisling5354]

Every youtuber I've watched who participated in this get-together has had a substantial change in editing style during it and it's been hilarious! I gotta say Tom seems most resilient against the Osman Effect though

[@SinanAkkoyun]

XD

[@SinanAkkoyun]

Peter is still the same lol

[@metacob]

I find it interesting how makers seem to be reclusive hermits most of the time, but turn into super sociable and supportive people whenever they meet other makers.

[@air-headedaviator1805]

metacob birds of a feather fly with more confidence, together.

[@64_bit80]

prob b/c camera man john

[@hwilkes2048]

I feel like there is more potential in this project. Better quality, more gears, higher weights. Would love to see a part 2

[@TheMadJagger]

and with two baskets to travel back and forth

[@rasmus9311]

Tom seems exhausted by all these high energy americanos

[@rasmus9311]

I mean no hate i'm subbed to both peter and william

[@JonnyRobbie]

yeah, I didn't really like this video that much. mainly because of the influence of the disgusting editing style and grimases and other childbait stuff.

[@4pThorpy]

@@JonnyRobbie so the part where they're having fun? come on Jonny, don't be a stick in the mud he's on holiday

[@JonnyRobbie]

@@4pThorpy You might misunderstand. I like the usual Tom's videos. That's why I'm subscribed to him after all. What I despise is the sort of forced hyperenergetic shit / jumpcuts / jingles / grimases / etc. where it almost feels disgenuine and hard to believe they are not "acting" for the video and I think they are having "fun" for the video and not for themselves. Now, I don't think this video goes all the way to that side. But it definitely have a feel like it's been influenced by that.

[@geogmz8277]

@@JonnyRobbie I really don't know why I read your comment with the Sheldon Cooper voice in my head.. 🤣

[@Zt3v3]

Cool to see you kicking it with two of my other favorite creators. William to laugh, Peter to fly, Tom for a bit of serious Science learning stuff.

[@recklessroges]

Needs higher gearing and a rapid reset path, (a way to pull the chain back up while bypassing the mechanism.)

[@SlendisFi_Universe]

Elevator counter weights with release system

[@shaneebahera8566]

you could put the chain on a ratcheting mechanism so that when resetting you can do it quickly without winding it back

[@gameoverwehaveeverypixelco1258]

Yeah there is a special way the gears are arranged to make that gravity light work. I saw a video about it.

[@SlartiMarvinbartfast]

How about water power as seen in cliff railway systems ? (on a much smaller scale of course).

[@umxrr8677]

2:07 that laptop charges with USB-C and there is a power brick back there

[@fernando47180]

Are you suggesting I use a laptop power brick to charge my phone? Sounds like a great idea!

[@umxrr8677]

@@fernando47180 its about charging the phone through the laptop while its charging

[@JulianHaardt]

The moment you realize he charges his Laptop via USB-C, while modeling the parts in CAD.

[@klightspeed]

Shhh - Don't take away his excuse to make impractical yet educational gadgets.

[@lushcassidy]

@Thebrightestbrick88 most phones support several voltages and are smart enough to not fry themselves. I think it's one of the many advantsges of USB type C. I know mine supports up to 18v, for example

[@foresthillwolf7998]

@Guybrush Threepwood the cable he uses for his computer can charge his phone

[@karmanyaahm]

@@lushcassidy It's 18 watts at varying voltages, and if a device doesn't support dynamic voltages, smart chargers(USB PD) just falls back to 5v

[@larryt5537]

I've got an idea ...a power adapter to plug in the wall...why would anyone at home try to do this?

[@RuchitBreme]

0:17 me: just goes and buys an adapter. tom: just makes a charger.

[@Jer_Schmidt]

2700mAh*3.7v=10Wh. 10Wh converts to 26552 ft-lbs... yikes lol

[@kutsen39]

It looks like it might be... 30 feet down? Let's say 30ft down, the coke bottle weighs 4.4lbs, so that's... 3900 times?

[@Alicia-un2kj]

Mmmmmm yes inded sience stuff i dont understand yes i very much agree with you

[@kutsen39]

@@Alicia-un2kj Jeremy used electrical properties to derive how much energy the battery stores from its amperage and voltage rating, and put it in foot-pounds. All I did was find the weight of a bottle of Coke and an estimate of how far they were dropping to figure out how many foot-pounds the bottle needed to drop to the bottom. I then took that number and divided it from how many foot-pounds you would need to charge the battery. Does this make sense? If you care enough, I can try to explain what doesn't make sense.

[@Alicia-un2kj]

Kevin alg thanks for the imformation.

[@jogadorjnc]

@@kutsen39 On the other hand, at 100% efficiency they could fully charge the battery by dropping a single 360kg boulder over those 30ft.

[@itssilence9998]

Use more weight and more gear with bigger advantage ( maybe 1 : 1000 ), add flywheel to store the kinetic energy, and battery to store power (as I think it will make more than 5v), and regulate the power from the battery to phone to match the phone power requirements. I dont know if it will work better, as i just understand physic just little bit more than most highschool graduate.

[@Johnlee-ej7yx]

5:00 thank God someone let the cat out of the bag!🤣

[@randomdude9135]

Dog doesn't exist, dimbo.

[@jesuschristislordoflordsan427]

◄ Proverbs 26 ► …18Like a madman who throws Firebrands, arrows and death, 19So is the man who deceives his neighbor, And says, "Was I not joking?"

[@collinschlegels4444]

That scared the heck out of me lol

[@slatetechnologies1724]

“All the plugs here don’t seem to work.” As an ElectroBOOM fan, I can tell you that Tom and Mehdi are both correct.

[@sandiego29061993]

I miss the calculation about how much energy is stored in the cat when lowering. And how efficent the system is 😯

[@thecaptainnoodles]

R/iAMVERYSMART

[@mission101]

Noah Ali what no. They were just saying they missed the bit where Tom included all the nerdy engineer stuff like the weight of the cat in this case and the full efficiency of the system

[@thecaptainnoodles]

@@mission101 maybe I should go on r/iamnotverysmart

[@jamesbrown99991]

Potential energy of cat is quite low. Cat would provide more energy in combustion engine.

[@foresthillwolf7998]

@@thecaptainnoodles or r/ihavereddit

[@Lord.Kiltridge]

Although your gravity device needs refinement, it is a LOT more interesting to watch than my cheaper and easier solar panels. May I suggest a weight that fills with water at the top and empties at the bottom where a much smaller counter weight can then bring it back to the top? You will need more gears and a stronger chain I think so it will drop MUCH slower.

[@trekintosh]

Thank god Tom is still professional and making good videos when visiting the Osmond mansion. Peter was just a gibbering maniac for his videos.

[@classydays43]

Ok, what you need is two weights. One is a bucket of water that, when filled, is greater than the weight of the other which could be a rock or something. A clutch in the gearbox could run a reverse gear so the dyno drives the same direction each time a weighted object descends. When the bucket is filled, it carries down to the bottom and lands on an offset surface that tilts the bucket on its side, tipping the water out. Because the rock at this point is so much heavier than the empty bucket, it could run on more pulleys to reduce its ratio as it gets to the bottom. When the rock gets to the bottom, it lands on a platform connected to a set of rods and stuff that opens a water valve at the top from a resevoir, filling the bucket. When the bucket is full, the cycle repeats. The only thing you would need to do is refill the tank, but if it's connected to a downpipe from the guttering (tank overflow runs back to downpipe), that step could be overcome entirely.

[@imagineaworld]

I knew the damn cat wasnt in there and my heart still jumped haha

[@jesuschristislordoflordsan427]

◄ Proverbs 26 ► …18Like a madman who throws Firebrands, arrows and death, 19So is the man who deceives his neighbor, And says, "Was I not joking?"

[@infidelmarine5826]

My heart dropped when the rope broke with that cat but at the same time I was thinking "somethings fishy"

[@NautiluStudios]

That bag drop part made my heart freeze for second, scared the crap out of me

[@lawnmowerdude]

Do you really think they would publish a video dropping a cat two stories?

[@I_like_pi_]

@@lawnmowerdude There are worse things on the internet.

[@davidberriman5903]

If the cat had been in the bag, would it have been catatonic by the time it reached the floor?

[@amusik7]

This gives me some appreciation toward the fact that we have abundant energy available all the time. You see how much work is required to load a simple phone battery 🔋

[@ryanp541]

This would be a great optimisation and efficiency series. Obviously these aren’t practical but from a process point of view, it would be great to see how it much it could be refined. And what methods are used to achieve better efficiency

[@primodernious]

why dont you modify a airgun into a phone charger. the pressure is manually compressed so the air pressure chould be able to turn a small generator long enough to put out some charge for a while.

[@nickpastore807]

This is awesome, I love you guys all hanging out together because I watch all your channels separately. Tom you should make the gear ratio insane and drop like a 20 pound weight over the course of like 20 minutes. You'd have to make a metal housing, chain and gears, but I'm sure it would work well!

[@natttomes4588]

if i did my math right it would make about 27 watts

[@chriswright1389]

@@natttomes4588 I am no math guy but don't you need to know how fast the weight bis moving.

[@CryptoTonight9393]

What you need is an escapement. Something like large clock mechanisms use. Basically you spin blades to use air resistance to slow down or regulate the release of potential energy.

[@p_mouse8676]

Looking at the little board, that's also not the most efficient circuit to use. It looks like they are using just a zener to clamp the voltage. Which means that you're wasting all the other energy. I would look into a buck/boost converter (SEPIC to me very specific). I bet that your phone will already charge a lot better. Funny episode, I was just missing a bit the physics/math behind it. You can actually calculate and predict pretty well how much energy you can get out of this. With proper gears and mass you'll be surprised that this is actually not a very stupid idea at all.

[@1Hippo]

Modern Li-Ion batteries actually contain quite a lot of energy. If you calculate the potential energy (see the comment from the user science below) and assume 100% energy conversion efficiency it would still take for example 480 kg on a 10 m drop to fully charge a typical 3500 mAh phone battery. If you want for this only for a emergency situation you could drop 14,4 kg down 10 m to get 3% charge back.

[@p_mouse8676]

@@1Hippo Correct. That's also why it's not really the most efficient way of doing it. But the thought behind it and mostly WHY is a very interesting exercise to do. That's what I meant that the idea by itself isn't stupid.

[@lapasteque899]

Hippo his calculation was shit no fucking celle phone battery is 47 KILO joules the one he specified was 722 j or 0,722 k j not quite the same

[@1Hippo]

@@lapasteque899 3,5 Ah * 3,7 V = 12,95 Wh 12,95 W * 3600 s = 46,62 kJ

[@jacobmartinelli7496]

more gears, wind up (like alarm clock) and a screw gear, from the wind up's unwinding spring part, to provide enough torque for the rest of the gears for a windup charger that can be wound within 30 seconds and last for at least 12 hours (like a windup clock would) (don't forget the auto escapement mechanism, unless you'd use a pendulum)

[@ryanm.191]

It’s not long until you turn into Michael reeves

[@terriblegoatman826]

2:42 DO NOT HOLD YOUR PHONE OVER THAT EDGE I AM HAVING AN ANXIETY ATTACK RIGHT NOW

[@JimFortune]

0:04 "Coming in to Los Angeleez, Bringin' in a couple of keys, Don't check my bags if you please, Mister customs man....."

[@ilioscio]

This collab trip has been the best thing, you look like you're having so much fun.

[@kliether33]

Will Osmand, Peter Sripol, and Tom Stanton in one video!?!?!?! Hell yes, the golden trio has arrived.

[@Oli420X]

Believe jabrillis is in the background at one point

[@jimmyoverly3512]

Tom has more talent and knowledge than Peter and William combined.

[@Invatator]

Yes. Indeed, jabrils was there as well

[@Rockzilla1122]

@@jimmyoverly3512 you really do be out here all over this comment section to keep on being an asshole

[@tech4682]

@@jimmyoverly3512 you should not compare. Keep it to yourself, you gonna look like an asshole

[@vipervidsgamingplus5723]

You made a solution to a problem that doesn’t exist without someone purposeful creating it.

[@IndraKurniawan-vk2qb]

0:29 Automatic chopstick xD

[@TylerLinner]

Interesting project. I think it would be cooler to develop a portable treadle powered generator so you can sit at a desk or table and charge using your foot while you eat, read, or write with your hands. You could probably fit it into the size of a briefcase for travel. Totally easier than buying an outlet adapter! ;)

[@Rouverius]

Wait! Where's the buttered toast to tape on Jimmie the cat's back? Oh, _Gravity_ powered phone changer.... huh. 😁 Hey, Merry Christmas.

[@bigbo1764]

As an American, I’m so sorry you had to see Los Angeles, I swear our entire country isn’t like that.

[@DrGreerIsRight]

Never come to the south.

[@starsandwars5509]

@@DrGreerIsRight u from new york? Yea you've never been here

[@jnqt]

sounds like someone who’s never been to LA

[@apbosh1]

Why when 2 tubers get together it has to turn into a comedy show?

[@dansv1]

It sucked.

[@jetison333]

Cause people like to have fun, probably.

[@apbosh1]

@@jetison333 do people like to have fun at partys? I don't get it.

[@jetison333]

@@apbosh1 yeah

[@apbosh1]

@@jetison333 thanks for the detailed response.

[@Sheckshe]

Villagers when you look at them: 6:28 I’m surprised nobody had pointed this out

[@nono9370]

Any Hydro dam is technically gravity powered.

[@luca_sbll]

It also technically is solar powered, since the sun makes the water evaporate and then fall as rain, feeding the hydro dam

[@nono9370]

Luca Isabella then again we are moving around the sun due to gravity.

[@luca_sbll]

@@nono9370 Well I think we can say an Hydro Dam needs both gravity and solar energy to work then 🤔

[@kopanvezer]

Well.. Wind turbines are gravity and solar powered too in some ways

[@mwbgaming28]

You could get way more power by replacing that crappy charging circuit with a good one from a car charger, then instead of dropping the weight 700 times, you only need to do it 100-200 times

[@RBurwell]

Funny when you think clocks have worked like this for years.

[@QlueDuPlessis]

Centuries

[@SlartiMarvinbartfast]

That was my first thought too.

[@huckfin1100]

As the bottle drops it tightens a spring hits return knob at bottom starts again ! Its really simple

[@joyfuflower]

I saw the title and though "Oh, like the gravity light!" and then 1:30 in...

[@HariKrishna-mr5jm]

Cat has this ability to jump from any building with minute scratches

[@morkovija]

I wish it was some sort of massive inertia wheel that you spin up once and then charge as it slowly comes to a stop

[@gaza102289]

What if the generator was a ratchet system and the spool was connected to a clockwork mechanism (Or some other sort of energy storage). When the basket gets to the end it lands on an angle that deposits the weight on the ground. Without the weight or the friction of the generator, the clockwork mechanism is able to re-spool the chain raising the basket back up. You put a new weight in the basket to restart the process.

[@andreaspanayiotou7779]

Phone battery gets problem Repair guy : so whats the prob Tom: I charged my phone Repair guy: this shouldn't be a problem Tom :Well.......

[@olfmombach260]

This went from 100 to 1 real quick

[@MichaelSHartman]

This is like a cross between Wallace and Gromit, and Wiley the Coyote. 😄

[@TecSanento]

I discovered that stepper motors produce way more power and you can use them with existing Timing belts

[@jansenart0]

I have wanted this setup since I saw the gravity lights made for non-infrastructure areas.

[@Hamdad]

If there's a counterweight so that the cat basket rises back up to the starting position by itself, you absolutely could charge a battery from it as soon as your cat learns how to use the basket to go down a floor. I imagine it would add up through the course of a day.

[@zeekjones1]

We need to go slower!!! Time to gear it down at least 1000 times, or at least as many before you burn out the board from over too many RPM.

[@prashanthkumar0]

4:51 i was about to scream

[@markusthiel7687]

Love the colab stuff! But why does William know everything even if he doesn't? 😂

[@drumkommandr9779]

The b-roll of you scrolling past all the international plugs to the hand crank made me burst out laughing in an ER waiting room so loud they checked on me

[@zell9058]

He who walks with wise men will be wise, But the companion of fools will be destroyed. Proverbs 13:20

[@samuelfellows6923]

Douggernaut84 - ✝️ 😉

[@fred_e]

Brace for impact

[@jimmyoverly3512]

I'm not Christian, but I appreciate where you're coming from and a I agree with you.

[@gormauslander]

Also, there are USB chargers you can get at almost any store in the USA that work with freedom outlets

[@ethanhermsey]

your giggling gets me every time ;p

[@stevengulick5736]

what you shouldve done is after you drop the weight you take the beads out and feed them in the opposite direction so as you pull the weight back up it still charges

[@aaronbobanthomas6522]

Add a flywheel to it so that even after the load has reached the ground the phone still will be charging. !!!!!!!!!!!!!!!!!

[@bluesillybeard]

normal person: buys a normal charger Will & Tom: spends hours designing a gravity charger

[@lasersbee]

2:57... Where Tom is highly professional in his projects and actions... you Peter are a childish clown...

[@maxuso1]

you could install this with some kind of propellers on a river. this would provide you a constant current.

[@dansv1]

This video was so lacking in substance that it must be considered a non canon Tom Stanton video.

[@jimmyoverly3512]

LOL this comment deserves more upvotes

[@centaurixon]

2:32 what kind of green monster is sitting there at the desk in the background? XD

[@bloodsweatandtearsforeverl9833]

You almost had it, just keep adding gears

[@NathanHaaren]

exactly what i was thinking, if u add so many gears that it takes the weight 4 hours to drop 2 metres then you can get a constant power output you could maybe even use your own body weight in a 15 minute drop to fast charge your phone to 50%

[@jrunsvold]

@1:53 Missed opportunity to say "That idea has potential"

[@usssmartdoofus516]

Did you replace Micheal Reeves as William osmans roommate now that Micheal is a part of offline tv?

[@grovecitysirens_GCS]

The generator had 1 STAR and he didn't notice or care

[@dontdowhatido6503]

Hey I have an Idea. Instead of adding a second pulley make the ratio higher with mechanical gears

[@dontdowhatido6503]

And also cool vidsss

[@alialwaily71]

🐈+🏗= 📲🔋

[@baswit514]

A grandfather clock works the same, but they invented a grasshoperthing to control the speed of decending. Very nice thinking

[@SparkyLabs]

well predictably not the greatest project.

[@Aheitchoo]

Make a legit one! Crazy gearing, 50lb weight, works in an 8ft tall room

[@borisloncar3011]

My advice to you is to use a Solar Power Bank with two USBs to charge your phone. Solar Power Bank can fully charge the phone in 1 hour, if you put Solar Power Bank full while the phone is charging the solar panel will convert sunlight into electricity and will charge 5 batteries via the Power Bank module and so the Solar Panel will not allow the batteries to discharge.

[@nates9536]

So you could put a bucket with a small hole at each end of the chain. Fill with water to add weight, and they'd slowly empty via the hole as they fell, while raising the other empty bucket back to the top.

[@Bertoslav]

The cat bag being dropped made my night. Thx.

[@kingofsalts386]

The cat is like "I AM NOT SITTING IN IT AFTER THAT"

[@scottgriswold384]

That looked WAY easier than cranking the original crank charger for 4 hours.

[@batlin]

Very clever placement of the ad segment :D

[@barrydheil]

This kind of gives me the idea of a rube goldberg machine. A solar panel, that charges a motorized fan, that blows air into a wind turbine through a tube, which provides power to another motor, which causes a rope to rotate, which is connected to a pulley powered mechanism, which then powers up a battery connected to an electric motor which connects to the crankshaft of the power device used in the beginning.

[@magomistico978]

Dude, I have a very good idea for your compressed air engine. This idea of ​​using pistons doesn't work with compressed air just because it works on gasoline cars, you need to use a circular motor as it will be more efficient since the engine doesn't need to use the energy generated to control the compressed air intake. if you didn't like the idea, at least try please

[@jeff6555]

So, this is a project that has fascinated me forever. A robust enough generator, and a substantial enough weight (50lbs?) to modest height (3m?). You come outside in the morning, expend a moderate amount of effort hoisting your weight to height, only to have it slowly descend over the next few hours. What's the maximum possible output?

[@toddmolloy311]

Just one question. Why would you not throw those beads in a loop? Just reattach weights over and over and over just need a catch / release just before absolute bottom. Or if you're lazy just add double the weight next time you reattach to retrieve the weight you sent the first time.

[@billgateskilledmyuncle23]

Put as many step-up gears you can before the torque becomes so weak it can't spin the DC motor. If it falls too fast, it's still geared to low.

[@doitwithnick501]

The cats like : I don't get paid enough for this

[@niklashermerschmidt1829]

You could build it so easily... In the original charger, theres a gearbox. This gearbox changes low rpm from your hand to high rpm on the generator. The only thing that you should build is a second gearbox. The chain should slowly lowered down and the generator should spin very fast. The gearbox should have a flywheel with small rotors, what the generator can't overspeed. Same example than in an old clock with pendulum. Greetings from Germany