Finally a good usage for Hoverboards! (charge your powerbank by cranking)

[@greatscottlab]

The first 1,000 people to use this link will get a 1 month free trial of Skillshare: skl.sh/greatscott09211

[@VijayaLakshmi19807]

Hi sir. This was really useful video. Sir please hack an AR glasses to work on a HDMI input even if the whole setup becomes bulkey. Bigg fan. Love from India ❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️

[@ProjectoOfficial]

Time to attach It to the bike generator 😁

[@oa1700]

@@-.......................- seems like it was a patreon video maybe? So people saw it before the release

[@nagendraprasadg8638]

Your hands will get pain after 5 mins, make one ring cage and attach it to the wheel, put one rat inside, it will do the job like an old movie style😂

[@milaanpatel4997]

Kindly check the link. The skill share debited 2 USD from my account immediately after registration. If they had asked for amount upfront, I'd not mind paying, but these kind of stuff is a SCAM.

[@BlackWolf42-]

Sechspuls-Brücken-Schaltung = Three-Phase-Full-Wave-Bridge-Rectifier

[@victorlacerda9659]

Electrom Boom has crys here

[@wondledonkey]

SECHSPULS BRUCKEN SCHALTUNG

[@pioneer1943]

Why does it say 'sechspuls', when it's 3 phases? Sechs means 6, so it's a bit confusing.

[@BlackWolf42-]

@@pioneer1943 Each phase is rectified into a (+) and a (-) = two poles.

[@pioneer1943]

@@BlackWolf42- that makes sense. Thanks!

[@AmusementLabs]

Can we stop to appreciate for a second that he put a little cape on a Supercapacitor? Adorable. 😁

[@andycoppes]

This video was loaded with goodies

[@Aa-ron01]

Agreed, every supercap should come like this.

[@game-f-un-limitedgamer8958]

Not all heroes wear capes.

[@JjMn1000]

Lol

[@yashaswikulshreshtha1588]

Lol I want to see where it is.

[@HannesMrg]

Wouldn't it be easier, to attach a pin to crank it with off center at the outer part (where the wheel is attached to) and leave the inner stator as a stator?

[@greatscottlab]

Hmmmm I think this is the most comfortable solution.

[@stepheneyles2198]

That sounds like a good idea; saves drilling through lots of metal as well!

[@larrycarson6584]

And it would be using the flywheel your holding.

[@inothome]

That was what I was thinking too.

[@Mr-Widget]

And perhaps 3D print a set of gears and a housing to gear up the rotation of the tire and make it easier to hold while cranking

[@andymouse]

" I'm way smarter now after watching my own videos" LMAO.....cheers.

[@greatscottlab]

While it was meant as a joke, I have to admit that I watch my own videos fairly often when looking for specific information.

[@andymouse]

@@greatscottlab I watch them to for reference !

[@JA-ur8ob]

It goes to show that taking notes and documenting everything you learn in an accessible way is extremely underrated. I always take notes as if I'm trying to teach a beginner. Good to know that this genius is no different.

[@brunocunha3114]

In the series arduino 101 the content was really dense. For beginners like me whem I start watching one of your videos my brain go to the hardcore mode 😂

[@MikeTechnology]

I guess you can improve a bit the stability of thouse lose wire by monting the little bearing wire thingy you use there on to the stator case of the motor . It is a little thing but it will prevent the wire from getting tangled

[@deadbird99]

I really like this new format. The intro is really awesome and dynamic. Great job! Now hook that puppy to a bicycle, we all want to know.

[@greatscottlab]

Thanks :-) I actually got the idea from the hoverboard motor from the bike generator videos......Well maybe one day I will try it out ;-)

[@jerrt]

Of course I look through the comments and didn't see your suggestion till after I post something similar.... END OF LINE

[@klaernie]

I would even go so far, and say you could remove the rubber part of the hoverboard motor, and directly rest the rear wheel of a bicycle in it - builtin gearing up, and since the stem of the motor stays still, no need to rewire the internals.

[@red1246]

9:40 welcome to a new episode of "don't listen to Great Scott videos while closing your eyes"

[@greatscottlab]

I am your host ;-)

[@Lacipecsenye1]

This scene reminds me of my grandpa’s old german po*n cassettes from the 70’s. Ja gut ejakulieren.

[@nyaasar]

I hope blind people will read this before watching the video. Misunderstanding can be dangerous, you know.

[@roland9367]

Hahaha "it works... oh, it goes down :( "

[@MaacAbra]

Made my day 😹

[@Bhavesh_g20]

"KZbin's educational content they constantly fail to promote" ~GreatScott 2021

[@TheRealFobican]

The idea itself I like but how it was approached was funny.

[@mumpitz89]

"Für 'nen Appel und 'nen Ei" sagt man auch in Norddeutschland :) Super Video, lehrreich und unterhaltsam. Dankeschön!

[@greatscottlab]

Gut zu wissen ;-) Danke für die Blumen :-)

[@brouwerk1]

(Ver)kopen voor een appel en een ei (selling/buying for an apple and an egg), is a common expression in the Netherlands.

[@ninaddeshmukh654]

Today is Teachers Day and I want to wish one of my favourite electronics Teacher one and only Great Scott Happy Teachers Day Great Scott you really teach us so much good things you are the one because of whom I felt in Love with electronics much love from India

[@greatscottlab]

Thank you very much :-) I appreciate it ;-)

[@shivavarunadicherla]

@@greatscottlab Happy teachers day :-) and I really would like to see you with electroboom and steve mold you are the best teachers ever.

[@sangrambhumia9320]

@@shivavarunadicherla 💯 💯

[@animationbyparitosh48]

Bro same i am also studying be in ec from Gujarat

[@DuudSimon]

Im working on a wind turbine that practically speaking works the same. The E-fuse ic would definently help me when it comes to stalling at low voltage and with overvoltage. Thanks for the video!

[@greatscottlab]

You are welcome :-)

[@coolfrost6]

Maybe adding a mppt to regulate the output could also be a option. Genasun has some that work with low voltages but they are a bit expensive.

[@Bhavesh_g20]

'But we are not the caveman anymore' Sad unga bunga noises

[@montalbert]

GreatScott!: "So, I continued with a really stupid idea instead" Me: "Finally some content that I can relate to"

[@TheRealFobican]

Not entirely stupid but opens up for future project ideas to make.

[@robsycko]

I watched this 3 days agoe and I just have to say Why? It would have been much easyer to put the crank on the wheel instead of the shaft. What a waist of time your way.

[@stevebabiak6997]

When you stack capacitors in series, unless their capacitance is known to closely match, we normally would put a resistor in parallel with each so that the voltage across each is divided fairly evenly.

[@l33pul]

Didn't he use series due to volatge required.

[@stevebabiak6997]

@@l33pul - yes, but capacitors are notorious for not having close tolerances, so unless they are closely matched in actual capacitance the voltage doesn’t divide evenly; resistors have reasonably close tolerance and thus they are used to ensure better voltage dividing.

[@TheAmerTV]

you can make an attachment to the wheel and fix the axe so you drop the usage of the extra device and while turning the wheel you get the added value of a fly wheel which will maintain the speed while not cranking.

[@mrk1747]

I think it so 😂

[@zaprodk]

Axe?

[@TheAmerTV]

@@zaprodk Axle or shaft (axe for short)

[@davidk8699]

wouldn’t it have been easier to attach a rod to the outside of the wheel? The system is already designed to spin the outer wheel independently of the electronics.

[@LDem-xj7ex]

I couldn't understand why he got tangled on this. The wheel was perfectly ready for just doing what you said! 😂😂😂

[@H8flint]

@@LDem-xj7ex classic overengineering ;-)

[@ErikDaGreat]

pretty sure thats because the wheel is heavier, so obvisuly it would be harder to turn

[@jameshughes3014]

i was literally just looking for info on these motors.. and you posted this video 8 minutes later. Awesome :)

[@greatscottlab]

Glad I could help!

[@bossveendam]

Although it is already a year ago, I think these hoverboard motors could become more interesting with high energy prices and winter coming. I see all kind of videos using them for wind turbines. Would love to see you create a basic wind turbine using these, to inspire other people to become more energy independent. Also makes good use for those unused hoverboards :)

[@arthebre3135]

I really enjoy the little change in your video editing with some parts where you just "naturally" do the experience. Bravo !

[@kikihobbyrepair]

Cool little project. You could maybe use some balancing resistors parallel to each super capacitors to have an equal voltage distribution across them otherwise you might blow them up :)

[@adrienletellier6132]

Or zener diodes?

[@czechgop7631]

@@adrienletellier6132 Or, but resistors are way cheaper

[@james_carter8066]

Happy teacher's day sir...love from India 🤗

[@greatscottlab]

Thanks a ton

[@JulianGommers]

I really enjoy your new style this video is created in. It gives way more energy while still keeping the informational level high 👌🏼

[@finopatton]

you can use bungee cords to attach a hoverboard to the top of a dolly and turn it sideways and you get a go cart

[@Bluuri-Aeros]

Steering issue solved? Please post

[@creazychannel]

5:16 Mehdi got into Scott's brain 😂

[@jaredrichardson1675]

Thanks!

[@greatscottlab]

Thanks for the support :-)

[@iluvpwny7565]

me: mom I want a hoverboard. mom: (buy me a hoverboard). Later.. mom: where is the hoverboard we just bought. me: No, we just bought a handcrank powerbank charger.

[@dahabitmedi]

your accent is very good and your experimental approach is great. I will do other projects with this tool

[@andycoppes]

My man, fighting off the viking instinct "we are not cavemen anymore" 🎩

[@PrimalNaCl]

I just wanted to say that I really like this new format. Thank you for your effort!

[@dwang085]

"it's ok to makes mistakes once, it's not ok to make the same mistake again." --My boss

[@yeodakyum]

The way he says sechpulsbrückenschaltung is so satisfying

[@SlavkosHobbyChannel]

Hahaha 😂 Imagine doing it in public, and if someone asks you what are you doing, you can just say it is an emergency situation, making power for my power bank 😂 Great video!

[@sivent4048]

i dont know what was different in this video but i enjoyed it way more than other videos.you really are the greatest of scotts

[@greatscottlab]

Thanks mate :-)

[@mo3ath9442]

what if you added 4 of these into a board (skateboard style) and started moving like you would on a skateboard. not useless cranking yet generating power.

[@TheRealFobican]

The execution to set motion was funny but the idea itself as a means to recycle anything that nobody wants anymore into anything cool is fine by me.

[@theteenageengineer]

I’ve got to say I love the comedy and the way this video was filmed!

[@oplkfdhgk]

Thanks for telling about slip rings. I have been thinking how i can do security camera that i can spin remotely :) and thats excactly what i have been looking for!

[@greatscottlab]

You are welcome :-)

[@oxenforde]

They also make slip rings with a single co-ax connection. Or, a single co-ax connection and multiple wires. Although, co-ax slip rings tend to be high friction when turning.

[@SchwaAlien]

Hair curlers / flat irons sometimes have slip rings (that could be salvaged) for the AC power cord so it doesn’t get twisted as the tool is sometimes used to twist up hair.

[@pratheeshkumar443]

Happy teacher's day....I understood many electronics concepts from your videos that's helps lot in getting grades in my degree.....thanks

[@aephix73]

Why didn't you just attach a handle to the wheel to spin the wheel? Those spinning wires will eventually wear through the insulation.

[@greatscottlab]

I did not think that would be a comfortable solution that you could use for a while.

[@mrdumbfellow927]

Same thing I thought. Figured it would be easier to fab a handle and not deal with spinning conductors. But I like watching different thought process flows.

[@czechgop7631]

@@greatscottlab Then possibly make a more comfortable handle, so you don't have to hold by the shaft?

[@nicoeggers9445]

Ich habe daraus ein Windrad gebaut - läuft super!😀👍

[@amarendarhemanth139]

The USB wire connected looks long which with its resistance can drop a few mV and that might be a significant loss here as it is already powered manually.

[@anonanonkiewicz1921]

Few mV? A 100 easily

[@amarendarhemanth139]

@@anonanonkiewicz1921 Ya, depends on the current you draw at the output.

[@ruix]

I'm so glad that this channel exists

[@RickLaBanca]

my first intuition would have been use the week as a flywheel and avoid that wire turning issue altogether

[@sorenberger831]

So mag ich die Videos. Bisschen Humor dabei und was gelernt 👍

[@friddevonfrankenstein]

3-PHASE FULL BRIDGE RECTIFIER!!! :D

[@tsanggary6422]

That is an EVEN FULLER BRIDGE RECTUMFRIER!!

[@ErdemYldrmer]

You should intagrate this setup into "Producing lots of Manmade Energy! Bike Generator Upgrade!" project.

[@This_is_my_real_name]

PS: Another likely source of generators are cordless drills. They not only have a nice, rugged DC motor, but also have a _gearbox_ attached, so that a slow turning of the input shaft will result in a higher speed of rotation in the motor (generator). And, the icing on the cake: The attached chuck makes it super easy to attach whatever input source you want! Small crank, large crank, foot pedals, windmill (cut a metal drum in half, offset the two half-cylinders, weld both to a length of pipe, set it outside (vertically), connect a pulley or chain at the bottom, and you'll have a low speed/high torque _omnidirectional_ windmill, ideal for driving one (or more) of the "power train" from a cordless drill!

[@peterwilhelmsson4168]

I have seen the same use of old washing machines as water generators: Lead water down a hill in a tube, and exit in a tiny muzzle. The waterjet spins an impeller connected to the washing machine motor. This setup generated 500W 24/7 into car batteries.

[@ShahZahid]

9:40 omg idk y but i laughed so hard, also with a belt system and bicycle peddles it should be really awesome and kinda usuable ig

[@daneins]

*fap fap fap* "yes! yes!"

[@FRESNEL_COOKING_SOLAR_OVENS24]

What I love the most here is your english chinese accent. Everyone could agree with this. Sounds soo cool. I know you are not chinese. By the way, your skills in electronics are one of the best on youtube.

[@stevetobias4890]

Add some wind blades to the shaft to save your cranking and use a buck boost converter to ensure a constant output after the capacitors.

[@BRUXXUS]

Yes! This I what I want to try!

[@rklauco]

This was one of your best :) Congrats on finally getting the hand-crank working! :)

[@ChargedCMOS]

Ihre Videos sind die besten. Vielen Dank für sie!

[@volvomad]

I took one apart and used the large quantity of magnets inside the wheel to hold tools all around my workshop. Especially handy for holding paintbrushes to the lathe and milling machine

[@ritiksahu1844]

For feeding power, you can create bicycle wheel like structure, where you just need to use your legs, much comfortable

[@greatscottlab]

Already did such a video a few months ago.

[@sgsax]

I can tell you had a lot of fun with this one. Gave me lots of laughs. 😂 Thanks for sharing!

[@shivamkhamble]

It's been an amazing journey learning so many great things from you sir. Happy teachers day

[@ntown559]

Hey Scott I like how you explain all of builts and still math out your projects keep it brother and send you a shout out from Fresno California 🎉😅 I'll support your projects videos in the future thanks for sharing your knowledge with us have a great day 😊

[@EngineeringEssentials]

Great video, power banks are hard to control, they test the power supply capability by drawing ramping current before settling to a specific charging power, same with mobile phones. The super capacitors will provide the high current demand during ramp up. That's when you see output power upwards of 4W. And eventually gets drained during which voltage drops and charger reduces it's current. That's why power draw drops below 0.5W. Now capacitors charges up once again. This cycle repeats. I came across this situation while I was building my solar charger. Great effort Scott. Please make more German content if possible. Thank you.

[@netpackonlinesolutions3254]

Hi Great Scott, thanks for also sharing stupid ideas and mistakes. Really awesome video. Greetings from Portugal.

[@greatscottlab]

My pleasure!

[@borismetodiev3218]

Greatings from Bulgaria!

[@vexari_]

I think this guy has the best handwriting out of all the electronic KZbinrs.

[@edmondbanez8885]

oh my.. you have a hidden talent in singing 👌 see you soon greatscott in tiktok 😂😂

[@AWoh51EIbvd]

9:40 This magic slap noise and voice "YES" make me laugh. Great video GreatScott!

[@Chaoddity]

A slipring! I was looking for one of these for my VR setup. I feel like they have so much potential there.

[@pokulan]

You should charge the cells directly with super cap and current limiter. Also would be great to add mill and mount it on the river during camping :D

[@budzillasohoski9858]

Dude, you are so smart. I literally forgot one of the ingredients once at the supermarket when my girlfriend ask me to stop and get things to make B.L.T.’s for dinner.😂

[@codebeat4192]

Nice video. Almost 2 years ago but still very relevant. Because it is already round shaped I was thinking about a spring loaded version. A spring that is called a "mainspring" made out of a spiral of steel. A mainspring is a spiral torsion spring of metal ribbon - commonly spring steel - used as a 'power' source in mechanical watches, mechanical music boxes and toys. This must be used with some kind of gearbox to generate the correct hand cranked RPM (or higher) under load. First you crank up the spring to maximum tension with the handle and when releasing it, it starts to drive the 'generator'. If it is possible, it would be nice it can drive for a few minutes. That makes it much easier and there is a more stable output. If you need more juice, simply repeat the operation steps. I don't understand this doesn't exist. It could be really helpful and make the operation easier and more user friendly.

[@MCsCreations]

Pretty interesting project, dude! Fantastic work! 😃 I'm going to keep an eye for those hoverboards... Their battery can be really useful as well! Anyway, stay safe and creative there! 🖖😊

[@greatscottlab]

Thanks! 👍

[@beardotapeshoes27]

The 2 potential changes I see is your slip ring is surging from no rotation to really fast rotation and there is a resistance in the carbon brushes of the slip ring causing a effeciency drop. The other part is there’s a lot less work in creating a handle that you could hot glue to the hubcap of the wheel and you could have a benefit from turning the tire side instead of the axle side, using it as a flywheel you would be able to flick every so often to keep voltage flowing. Larger capacitors before the dc-dc converter could make use of the excess voltage you are able to create. But I think it’s a neat project!

[@2_stixs-fpv680]

GREAT SCOTT!! I love watching your content. and I thought you looked way different then you do, this was the first time I actully seen you! keep on making vidoes!

[@SplicesAndCelluloid]

Very interesting project! About wanting to mount the slip ring to a fixed point, I think mounting it to the motor rotor might work. Drill 3 holes around the center one that was made for the wires, and then you can screw the slip ring on. Then u can also run the slip ring's wires into the motor instead of the motors wire out to the slip ring. Granted, that would require a much bigger hole for the center "hub" of the slip ring to fit into, or a 3d printed spacer to make it fit, but that would eliminate the dangling slip ring and extra twisting and untwisting of the wires.

[@Jarmezrocks]

Thank you! I want to run Peltiers on my hub motors! This solves my problem.

[@RomanoPRODUCTION]

Previously, hacker was the cool job, now with GreatScott, the top is cranker ❤️❤️❤️😎

[@Raykkie]

Hoverboards aren't very fast, but the pizzeria not far from where I live found an interesting use for them. Instead of using a Scooter for closer deliveries, it's more convenient, cheaper and less exhausting than the bulkier solution, and as fast as running (without ruinning the pizzas :° ).

[@soejrd24978]

Great ending there, very natural conclusion

[@thomaswinter1018]

Fantastic idea. I would love to see you turn that motor into a windtrbine. Would be a very good feature to a off grid system.

[@kevgermany]

Love the way you slipped back to German for the three phase inverter circuit. Interesting idea. Not sure if I want to do it. The movement of the output wires will cause failures in future.

[@Abodino]

Hi great scott, I love you and your channel. from Afghanistan

[@greatscottlab]

Thanks mate :-)

[@Abodino]

Reply for thanksRRRr

[@Abodino]

Thanks for replying

[@brillyonbro9135]

most of your videos are like awkward bloopers and i love it

[@greatscottlab]

Great :-)

[@kentadayaki3399]

What a coincidence I've been looking for effective hand crank generator for source of energy for nuclear winter. You saves our lives

[@greatscottlab]

You are welcome :-)

[@kentadayaki3399]

@@greatscottlab ohhhhh I have been replied by my idolll. By the way sir how long does it take to charge a 4000mah battery?

[@kaancosgun8231]

Loved the video! It had a great format and it was very pleasant to watch. Keep up the good work!

[@davidpritchett855]

I think those would be perfect for your bike generator idea. Just mount them so the tires are in contact and you will have some serious mechanical advantage. So there's a KZbin channel called open source low tech where he uses those hoverboard wheels to do water and wind turbines. I think he was achieving about 5kwh consistently.

[@jiinueleo2211]

Attach some blades and make a wind generator? probably a portable one for camping, where you could stick on a pole outside your tent or camera tripod and charge something overnight or while camp is setup?

[@imikla]

I have to confess, I was a bit disappointed. You didn't say, "Let's get started!" ;-) (The video was excellent.)

[@KELMET1]

you could use a spin multiplier

[@MeriaDuck]

Love those me and my 'great' ideas moments, very relatable 🤣

[@CNGboyevil]

You've clearly done some work on your writing. Nice!

[@unlost117]

.. And I will continue cranking ... It is so much fun -- GreatScott! 2021 Love it !

[@barrydheil]

German turns of phrase, gotta love 'em. "Get it for an apple and an egg" is more creative than "get it for dirt cheap"

[@erickvond6825]

Seeing this it makes me wonder how well hoverboard motors would do as a bicycle generator. Coupled with a charge regulation system and lights that could be a lot of fun.

[@TravisFabel]

They work well... But if you're going fast it's extremely noticeable the amount of drag they create. They work best when you can turn them on and off so that you use them as a brake downhill, and store the energy. On the flat and uphill you don't want them

[@pfgmako330]

You can alleviate your inefficiencies and irregular input by adding a second slip ring and crank on the other side. Like bicycle pedals for your hands.

[@kadmon78]

Du bist ein Sachse? Das kam wirklich unerwartet ;-) Weiter so!

[@144GENERAL]

For more power , you can change the stator windings to make even more voltage about 50volts with slow cranking😁 try it out

[@diy-mastermash4572]

Hello sir, i love your channel i love the way you are a good teacher, 👍keep it up

[@diy-mastermash4572]

I already did a similar project, not professional but you can check it out ...kzbin.info/www/bejne/bpjbnISenLN6bZY

[@weasle1uk]

Try mounting a fan blade on it and using it as a basic wind turbine. Also mount it to a bicycle on a turbo trainer. Could charge your battery bank/phone whilst working out.

[@LeeZhiWei8219]

When greatscott had enough. He just drills and desolders wire from the motor.

[@avoirdupois1]

This is a great intro project with a practical use. Plus german for full bridge rectifier! One question though- why did he re-engineer the wiring to include a slip ring instead of drilling and tapping the aluminum wheel and putting the crank on the wheel side? This would have prevented all of the electrical and machining work he had to do on the motor/generator, plus, the heavy rotor would have a flywheel effect, smoothing out the waveforms a bit. Downside is the axle would need to be braced in a vice or something, but that's pretty trivial (block of wood).

[@GadgetAddict]

That's quite a disappointing output, just a couple of watts. I know it would be as portable, but how much do you think you could practically get out of it, if you added some external gears to spin it faster?

[@mithileshgangawane212]

You can actually feel that while pumping 🔥🔥