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 ❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️
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.
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?
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.
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.
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 😂
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
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!
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
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.
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 - 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.
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.
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.
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 :)
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.
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.
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.
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!
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 :)
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!
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.
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.
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
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!
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.
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.
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.
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.
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.
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!
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.
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 UA-cam 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.
I did something similar on my bike. When I cycle, my hub dynamo front wheel spins and supplies between 3 and 14 volts depending on how fast I'm going. The power goes through a rectifier through a buck-boost converter to a USB port. And everything fits in the coupling piece for electrical conduit. Ø 3/8" x 40mm. Now i can charge my phone when i cycle.
It was easier for you to crank the wheel by cranking it with a gear belt system on the tyre side mounting an aluminium flywheel with belt space. You need 2500 rpm ratio to 50 RPM for a better output
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 :° ).
Sechpulsbruckenshaltung is a fun word. I want to say it means "Full Bridge Rectifier" but the Sech- in front makes me think it's literally "six diode back stop". I've only seen the term "full bridge rectifier" applied to 2 phases using 4 diodes. But I think the concept could apply to any number of phases.
My dear Scott amazing as always I have ome upgrade for the project in my humble opinion you can make a fixed postion for the shaft and a 3D print a crank for the outter rubber wheel installing it by drilling the whole on it this way you can make it all combact in single unit without interfering the wire much luv Aladdin
Great as an example of how you investigated the motor, learned how it works and created a circuit. Not so sure about its practical use as it would be easier and lighter to just put a few extra power banks in your rucksack instead. I did enjoy the video.
Good to see someone get a useful output from one of these. Robert Murray-Smith tried with one but got a few mA out of it said how amazing and gave up with it.
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.
use the wheel as a flywheel! and crank handle to the rim of the wheel. dill in to the aluminum wheel case and add a steel pin for the crank handle. then mount the axle on a stand. also if you use a stationary bike can run the wheel at a higher revolutions per minute with more consistency then a hand crank. however the other is best for portable applications. have fun:-)
The issue with the the first 3 'advanced' power banks may have been lack of a voltage reference on the data input lines, green white wires. A common resistor divider can fix this issue with schematics available for different current draw setups respective to phone models (assuming also power banks).
Add 7805 regulator after it, for preventing to destroy a powerban., and set booster to 6.5v instead of 5v output. When booster will shoot up to 32 volts, the 7805 regulator will start working, but you need to add a heatsink with 7805 regulator cause it gets heated with more voltage to destroy extra voltage.
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.
I think the slip ring needs to be mounted on the body of the wheel, otherwise the cables flapping around will eventually break (my guess at the blue heatshrink). Alternatively, the crank could be mounted on the wheel hub using an axle and slip handle (somewhat like a bike pedal). Then a stand built for the axle could house the electronics, while still being removable for more compact storage. But, for emergency alone, it's probably serviceable. It's clear you've learned a lot about generators!
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.
Suggestion: Mount your slip ring to the motor, to avoid the constant flexing of the short length of wires between the motor and the slip ring. That constant flexing _will_ cause eventual failure -- i.e., internal breakage of the conductor, likely without any _visible_ damage when examining the insulation.
i would leave the wiring, make tha a handle. and then put a crank on the outside of the wheel. once you pull the stator, you should be able to drill as small countersink drill hole near the tread on the side you put your slip ring.
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).
For better efficiency, you might want to consider connecting the device to be charged directly. That way you could shave off the doubled charging losses of the batteries. That might save around ten percent of hand-cranking. Directly connecting the slip-ring to the stator will lengthen the life of the cables, but you certainly thought of that for version two...
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?
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.
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
You should use a usb buck converter module. They're only 2 to 3 dollars and already have some basic current and voltage protections. Just add one on after the capacitors and you're good to go. I've used them on small wind turbines and pedal generators.
The bigger powerbanks probably have more complex charging circuitry, so they try to pull a higher current and then back off when the voltage collapses. You might be able to fix that by adding the right resistances to the USB data lines so that the powerbank recognizes it as a computer USB port (and only draws 500 mAh). That was a thing you had to do on Adafruit's old Mintyboost to charge iPhones properly.
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.😂
♥️♥️♥️♥️As you are a german but your way of speaking in english is very very very fluent and nice even any body can also understand your english (thank u for giving reply in previous video that diy or buy on BLUETOOTH RGB LED STRIP CONTROLLER) so please make it in your future videos
Great video Scoot. I think that turning cable set up is limiting a lot of the current. Also the two three step buck converting reduces drasticaly efficiency. Thats why I make my own power banks at 12v then buck it down to 5v. With tis set up you can charge in about an Hour with out forcing the bateries. I tink this st up will be more sutable for this this set up only thing, you´ll have to ramp up those revs.
The first 1,000 people to use this link will get a 1 month free trial of Skillshare: skl.sh/greatscott09211
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 ❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️
Time to attach It to the bike generator 😁
@@-.......................- seems like it was a patreon video maybe?
So people saw it before the release
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😂
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.
Can we stop to appreciate for a second that he put a little cape on a Supercapacitor? Adorable. 😁
This video was loaded with goodies
Agreed, every supercap should come like this.
Not all heroes wear capes.
Lol
Lol I want to see where it is.
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?
Hmmmm I think this is the most comfortable solution.
That sounds like a good idea; saves drilling through lots of metal as well!
And it would be using the flywheel your holding.
That was what I was thinking too.
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
Sechspuls-Brücken-Schaltung = Three-Phase-Full-Wave-Bridge-Rectifier
Electrom Boom has crys here
SECHSPULS BRUCKEN SCHALTUNG
Why does it say 'sechspuls', when it's 3 phases?
Sechs means 6, so it's a bit confusing.
@@pioneer1943 Each phase is rectified into a (+) and a (-) = two poles.
@@BlackWolf42- that makes sense. Thanks!
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.
Thanks :-) I actually got the idea from the hoverboard motor from the bike generator videos......Well maybe one day I will try it out ;-)
Of course I look through the comments and didn't see your suggestion till after I post something similar....
END OF LINE
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.
" I'm way smarter now after watching my own videos" LMAO.....cheers.
While it was meant as a joke, I have to admit that I watch my own videos fairly often when looking for specific information.
@@greatscottlab I watch them to for reference !
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.
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 😂
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
9:40 welcome to a new episode of "don't listen to Great Scott videos while closing your eyes"
I am your host ;-)
This scene reminds me of my grandpa’s old german po*n cassettes from the 70’s. Ja gut ejakulieren.
I hope blind people will read this before watching the video. Misunderstanding can be dangerous, you know.
Hahaha "it works... oh, it goes down :( "
Made my day 😹
"UA-cam's educational content they constantly fail to promote"
~GreatScott 2021
The idea itself I like but how it was approached was funny.
"Für 'nen Appel und 'nen Ei" sagt man auch in Norddeutschland :) Super Video, lehrreich und unterhaltsam. Dankeschön!
Gut zu wissen ;-) Danke für die Blumen :-)
(Ver)kopen voor een appel en een ei (selling/buying for an apple and an egg), is a common expression in the Netherlands.
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!
You are welcome :-)
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.
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
Thank you very much :-) I appreciate it ;-)
@@greatscottlab Happy teachers day :-) and I really would like to see you with electroboom and steve mold you are the best teachers ever.
@@shivavarunadicherla 💯 💯
Bro same i am also studying be in ec from Gujarat
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.
I think it so 😂
Axe?
@@zaprodk Axle or shaft (axe for short)
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.
Didn't he use series due to volatge required.
@@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.
'But we are not the caveman anymore'
Sad unga bunga noises
Happy teacher's day....I understood many electronics concepts from your videos that's helps lot in getting grades in my degree.....thanks
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.
I couldn't understand why he got tangled on this. The wheel was perfectly ready for just doing what you said! 😂😂😂
@@LDem-xj7ex classic overengineering ;-)
pretty sure thats because the wheel is heavier, so obvisuly it would be harder to turn
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.
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 :)
i was literally just looking for info on these motors.. and you posted this video 8 minutes later. Awesome :)
Glad I could help!
GreatScott!: "So, I continued with a really stupid idea instead"
Me: "Finally some content that I can relate to"
Not entirely stupid but opens up for future project ideas to make.
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.
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.
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.
"it's ok to makes mistakes once, it's not ok to make the same mistake again."
--My boss
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
Thanks mate :-)
I really enjoy your new style this video is created in. It gives way more energy while still keeping the informational level high 👌🏼
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!
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 :)
Or zener diodes?
@@adrienletellier6132 Or, but resistors are way cheaper
I really enjoy the little change in your video editing with some parts where you just "naturally" do the experience. Bravo !
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!
You are welcome :-)
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.
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.
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
my first intuition would have been use the week as a flywheel and avoid that wire turning issue altogether
For more power , you can change the stator windings to make even more voltage about 50volts with slow cranking😁 try it out
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!
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.
5:16 Mehdi got into Scott's brain 😂
your accent is very good and your experimental approach is great. I will do other projects with this tool
My man, fighting off the viking instinct "we are not cavemen anymore" 🎩
I just wanted to say that I really like this new format. Thank you for your effort!
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.
Few mV? A 100 easily
@@anonanonkiewicz1921 Ya, depends on the current you draw at the output.
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
Steering issue solved? Please post
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.
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.
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.
Why didn't you just attach a handle to the wheel to spin the wheel? Those spinning wires will eventually wear through the insulation.
I did not think that would be a comfortable solution that you could use for a while.
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.
@@greatscottlab Then possibly make a more comfortable handle, so you don't have to hold by the shaft?
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.
Yes! This I what I want to try!
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!
The way he says sechpulsbrückenschaltung is so satisfying
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.
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 UA-cam 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.
3-PHASE FULL BRIDGE RECTIFIER!!! :D
That is an EVEN FULLER BRIDGE RECTUMFRIER!!
For feeding power, you can create bicycle wheel like structure, where you just need to use your legs, much comfortable
Already did such a video a few months ago.
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
*fap fap fap* "yes! yes!"
Happy teacher's day sir...love from India 🤗
Thanks a ton
I did something similar on my bike. When I cycle, my hub dynamo front wheel spins and supplies between 3 and 14 volts depending on how fast I'm going.
The power goes through a rectifier through a buck-boost converter to a USB port.
And everything fits in the coupling piece for electrical conduit. Ø 3/8" x 40mm.
Now i can charge my phone when i cycle.
And bike dynamo is smaller and lighter
It was easier for you to crank the wheel by cranking it with a gear belt system on the tyre side mounting an aluminium flywheel with belt space. You need 2500 rpm ratio to 50 RPM for a better output
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 :° ).
Sechpulsbruckenshaltung is a fun word. I want to say it means "Full Bridge Rectifier" but the Sech- in front makes me think it's literally "six diode back stop". I've only seen the term "full bridge rectifier" applied to 2 phases using 4 diodes. But I think the concept could apply to any number of phases.
Ich habe daraus ein Windrad gebaut - läuft super!😀👍
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
My dear Scott amazing as always
I have ome upgrade for the project in my humble opinion
you can make a fixed postion for the shaft and a 3D print a crank for the outter rubber wheel installing it by drilling the whole on it
this way you can make it all combact in single unit without interfering the wire
much luv Aladdin
Great as an example of how you investigated the motor, learned how it works and created a circuit.
Not so sure about its practical use as it would be easier and lighter to just put a few extra power banks in your rucksack instead.
I did enjoy the video.
Thank you! I want to run Peltiers on my hub motors! This solves my problem.
I’ve got to say I love the comedy and the way this video was filmed!
So mag ich die Videos. Bisschen Humor dabei und was gelernt 👍
Good to see someone get a useful output from one of these. Robert Murray-Smith tried with one but got a few mA out of it said how amazing and gave up with it.
You should intagrate this setup into "Producing lots of Manmade Energy! Bike Generator Upgrade!" project.
As a suggestion - drag down to the ground 2 links with wells connected and let pull them behind U for continually power wile U are walking.
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.
Great ending there, very natural conclusion
It's been an amazing journey learning so many great things from you sir. Happy teachers day
use the wheel as a flywheel! and crank handle to the rim of the wheel. dill in to the aluminum wheel case and add a steel pin for the crank handle. then mount the axle on a stand. also if you use a stationary bike can run the wheel at a higher revolutions per minute with more consistency then a hand crank. however the other is best for portable applications. have fun:-)
What a coincidence I've been looking for effective hand crank generator for source of energy for nuclear winter. You saves our lives
You are welcome :-)
@@greatscottlab ohhhhh I have been replied by my idolll. By the way sir how long does it take to charge a 4000mah battery?
Ihre Videos sind die besten. Vielen Dank für sie!
The issue with the the first 3 'advanced' power banks may have been lack of a voltage reference on the data input lines, green white wires.
A common resistor divider can fix this issue with schematics available for different current draw setups respective to phone models (assuming also power banks).
Add 7805 regulator after it, for preventing to destroy a powerban., and set booster to 6.5v instead of 5v output.
When booster will shoot up to 32 volts, the 7805 regulator will start working, but you need to add a heatsink with 7805 regulator cause it gets heated with more voltage to destroy extra voltage.
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.
I think the slip ring needs to be mounted on the body of the wheel, otherwise the cables flapping around will eventually break (my guess at the blue heatshrink).
Alternatively, the crank could be mounted on the wheel hub using an axle and slip handle (somewhat like a bike pedal).
Then a stand built for the axle could house the electronics, while still being removable for more compact storage.
But, for emergency alone, it's probably serviceable. It's clear you've learned a lot about generators!
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.
Suggestion: Mount your slip ring to the motor, to avoid the constant flexing of the short length of wires between the motor and the slip ring.
That constant flexing _will_ cause eventual failure -- i.e., internal breakage of the conductor, likely without any _visible_ damage when examining the insulation.
.. And I will continue cranking ... It is so much fun -- GreatScott! 2021 Love it !
A slipring! I was looking for one of these for my VR setup. I feel like they have so much potential there.
I think this guy has the best handwriting out of all the electronic UA-camrs.
i would leave the wiring, make tha a handle. and then put a crank on the outside of the wheel. once you pull the stator, you should be able to drill as small countersink drill hole near the tread on the side you put your slip ring.
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).
For better efficiency, you might want to consider connecting the device to be charged directly. That way you could shave off the doubled charging losses of the batteries. That might save around ten percent of hand-cranking. Directly connecting the slip-ring to the stator will lengthen the life of the cables, but you certainly thought of that for version two...
Previously, hacker was the cool job, now with GreatScott, the top is cranker ❤️❤️❤️😎
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?
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.
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
You should use a usb buck converter module. They're only 2 to 3 dollars and already have some basic current and voltage protections. Just add one on after the capacitors and you're good to go. I've used them on small wind turbines and pedal generators.
thanks great scott.. you're my inspiration for every electronic project i build at home..
Greatings from Bulgaria!
The bigger powerbanks probably have more complex charging circuitry, so they try to pull a higher current and then back off when the voltage collapses. You might be able to fix that by adding the right resistances to the USB data lines so that the powerbank recognizes it as a computer USB port (and only draws 500 mAh). That was a thing you had to do on Adafruit's old Mintyboost to charge iPhones properly.
I'm so glad that this channel exists
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.😂
Just needs a housing, Gear ratio, Flywheel and larger crank aha!
Nice job.
♥️♥️♥️♥️As you are a german but your way of speaking in english is very very very fluent and nice even any body can also understand your english (thank u for giving reply in previous video that diy or buy on BLUETOOTH RGB LED STRIP CONTROLLER) so please make it in your future videos
You can actually feel that while pumping 🔥🔥
I can tell you had a lot of fun with this one. Gave me lots of laughs. 😂 Thanks for sharing!
Great video Scoot. I think that turning cable set up is limiting a lot of the current. Also the two three step buck converting reduces drasticaly efficiency. Thats why I make my own power banks at 12v then buck it down to 5v. With tis set up you can charge in about an Hour with out forcing the bateries. I tink this st up will be more sutable for this this set up only thing, you´ll have to ramp up those revs.
Hi Great Scott, thanks for also sharing stupid ideas and mistakes. Really awesome video. Greetings from Portugal.
My pleasure!