Large Magnetic Levitator

[@lorencpollo2926]

For anyone watching this video years later, just wanted to say that placing a thin piece of aluminum between the electromagnet and the Hall effect sensor really helps if you’re having issues keeping the system stable. Before the aluminum I couldn’t output a square wave at all and the frequency would be in the 10k or higher. After the aluminum it was a square wave with about a 12% or so duty cycle depending on how heavy or how far the magnet was from the sensor, and the frequency dropped down to around 300hz. Which was a lot easier on the mosfet.

[@chukwuemekaokafor3859]

Thanks for this comment,

[@justinindustries]

Good idea

[@jasonquiatchon770]

aluminum ????

[@Magneticitist]

Sweet. That efficiency is much better than what I would have guessed.

[@christopherdasenbrock2683]

I genuinely don't understand why this channel doesn't have more views/ subscribers

[@patrickjdarrow]

Tried doing something similar in undergrad as a side project but couldn't get the circuitry right. Would love to see a deep dive on the schematics!

[@biancamarcy8209]

you did it? i need some help..

[@tr911tr]

KZbin algorithm thinks I'm worthy enough to recommend me this amazing channel before hitting a million subscribers! Made my day! Awesome work, keep going!

[@antonnym214]

That floating saucer is pretty epic. Nice job!

[@JDSchmelzerful]

I was able to replicate. I had to change 2 things in the wiring diagram. First note is pin 2 & 3 should be swapped for the hall effect sensor. 3 is output not ground. I fried a few sensors learning that (at least for a EQ731L... Digikey on backorder for the 733). Second thing was for Op Amp logic. I had to switch pin 2 & 3 for the LM324N I ended up using. Swapping the hall effect output w/ the linear 100kohm pot made it so my magnet defaulted to being on then turning off when the levitated magnet got close to the hall effect sensor. They way shown had my magnet only turning on when the levitated magnet got close to the sensor (the total opposite ;.;). I'm a manufacturing engineer not electrical so no clue if this is my bad wiring, flip flopped wiring diagram numbers, or a difference in parts. Very cool video either way. This got me into electronics :)

[@이준경-s6h]

So did it work normally after rewiring? I'm making this. Please answer me

[@VictorLarsen-fy9ls]

I think you can add another feedback, negative, if you add another hall sensor from the bottom of the magnetic object. Then the sensor will react to the fall of the magnet down, it will be like increasing the resolution of the overall sensitivity.

[@coastmountainkid]

I love the dedication you have to analog circuits. It leads to cool creative circuit design without overreliance on MCUs, makes me want to design some of my own!

[@neutronenstern.]

Actually its dogital,cause it can only be off or on, and nothing in between.

[@Enderplays12]

@@neutronenstern. The entire mechanism regulates its own wattage depending on the distance of the magnet. It's analog.

[@jorickleferink7065]

Opamps are your friend in feedback-driven devices :)

[@MadScientist267]

​​@@neutronenstern.That doesn't make it "digital" at all 🤦‍♂️ It's called PWM and while it is normally done with a microcontroller of some sort today, it's originally a *purely analog* concept, and is being done that way here.

[@neutronenstern.]

@@MadScientist267 The PWM in its own form is digital by definition. It does not have any intervalls. Only on and off. The time which regulates it might be analog, cause the interval can be any number of ms or μs or whatever you want it to be. Look up the definition of digital and analog. It hasnt got anything to do with the technology itselve

[@MrStevensarns]

Nice description of the project and elegant circuit. I too have done this with a microprocessor and marvel at the simplicity of your approach.

[@khangpham9743]

Did you do it with adruno can you answer some of my question i am having it for my exam

[@MrStevensarns]

@@khangpham9743 I used STM32F103 "Blue Pill". I doubt if I will be of any help to you - it was a long time ago.

[@wiremonkeyshop]

This is really fantastic, especially that you designed the analog circuit to keep the magnet floating. It operates very smoothly. I would have tried to do it with a microprocessor and code, but this is a far more elegant approach and is clearly superior. Bravo! Time to levitate an asparagus.

[@jasonquiatchon770]

Elektor magazine had this 15 years ago

[@awarenessiskey]

Incredible. You were able to grab and let go and grab again without touching. That’s amazing. scale this down and I see medical and scientific possibilities.

[@johng539]

Wet well preparation video on every diagram and step by step done right , and u have a lot of knowledge on this to… Very well done ! U got my thumbs up on this video

[@stefarn5065]

made something very similar but considerably smaller, it really does work surprisingly well for such a simple concept

[@MadScientist267]

Perfection isn't achieved when there's nothing left to add... it's achieved when there's nothing left to take away.

[@martinmendoza920]

You are awesome, I would have a lot of fun with that levitation jig you put together beautifully

[@Lexfr0mkhar]

You can transfer the EMF to the LED by high frequency and Faradey's Law! So to light them up without the battery inside, while they will be floating :)

[@PhillipChalabi]

Welp it only took me seeing 4 of your videos to realize I have to sit down and watch them all. Excellent stuff!

[@manvstaco]

Holyshit how do you not have more subscribers? I've been watching your videos for the last hour you have some great content you've earned a new subscriber

[@HyperspacePirate]

Thanks...hasn't been very long since i started the channel so that's probably why

[@StormBurnX]

I can't help but wonder if a fast microcontroller could send pulses through that coil on the order of 10's or 100's of kHz to create wireless charging/power transfer for the LED objects you suspend from it. Main "big" 300Hz pulse from the levitating PSU, followed by Qi-style pulses in between :)

[@user-rs8zg8ey2b]

I would think the field strength to hold them magnets up would easily power some leds with the right coil design in the ufo and some rectifying diodes.

[@spageti6640]

It could, but you would still use a hull sensor and a transistor, so learning and tuning the circuit is simpler and more reliable

[@MadScientist267]

The elegance of analog is lost in a microcontroller.

[@StormBurnX]

@@MadScientist267 it is a common mistake to misconstrue limitations for elegance, but indeed, in this design, simplicity is beauty.

[@MadScientist267]

@@StormBurnX Perfection isn't achieved when there's nothing left to add... it is achieved when there's nothing left to take away. Adding a microcontroller to something that only needs a handful of parts to work, is never elegant.

[@Twisted_in_head]

Dude your nut bolt planetary system is very cool 👍

[@BushCampingTools]

Man, I'm glad i found your channel lots of cool educational projects.

[@Stormrat461]

Bismuth or proteolytic graphite would have a similar dampening effect as aluminum, but also may produce a larger gap if it's placed underneath the permanent magnet as a base. It's diamagnetic.

[@polarkerr]

Very cool, I've been looking to build one of these for 20 yrs now, never got a chance perfect video thx

[@themisf5077]

If you fix the sound quality of your videos, the channel will surely take off .The content is perfect ,keep making thos awesome videos !

[@HyperspacePirate]

I think you're right. I have a terrible analog mic right now that i need to upgrade

[@Ferraday]

@@HyperspacePirate IMO this video felt quality than your other ones

[@rubenklobertanz4675]

@9:31 that how flying saucers works, with a big magnet in its core and gyroscopic force. I know from experience...

[@Johny40Se7en]

Amazing creations there. The flying saucer's a nice touch. And if you're not already, you should get teaching. You made this proper interesting all throughout, even the electrics part where I would have usually zones out in a nano second 😅😝 Love the music right the way through too, it's very chilled and thought provoking.

[@garethsmith7628]

The flyback diode can impact performance, some are faster than others, it can make a big difference depending on switching frequency.

[@cwiskus4956]

That is a very neat idea. The top u could mockup as a ufo have a spotlight down from it and have a cow floating like in a tractor beam

[@bromisovalum8417]

that's a really cool idea! 😎

[@daCount0]

Your experiments & projects are realy inspiring

[@heavymetalaircraft]

This is an excellent idea and great presentation! Love your channel!

[@stevedoubleu99B]

Thank you, I am going to have a go at this. My electromagnet core is a bus kingpin. Wish me luck.😊

[@rickyrobot]

Super cool video. I had to pause and check out the coil winder video when you mentioned that part of the build, did not disappoint =)

[@hobomaster6237]

great video . one of the best electronics (craft ?? ) channels on youtube. seriously

[@mxcollin95]

This is awesome…nice work! 👍

[@ahmedhasanin8445]

Great job your content is awesome, thanks a lot 👍😍

[@EthannCraftt]

This channel is amazing. Etch my name into the tomb of this comment section to commemorate my presence before the inevitable explosion.

[@linatan2064]

Me too

[@Scyth3934]

@@linatan2064 me too

[@UTKETCHUP]

And so it begins...

[@Personal-jr9rn]

I have a thought, For increasing the distance maybe u can put the hauleffect sensor at the bottom and reverse the output, then u will need to take the distance between the electromagnet and the base into considration when designing

[@MadScientist267]

To a point you can adjust it just by biasing. There are a couple tweaks to this design that could give it some more fine tuned characteristics, but the only way I'd go with something at the bottom is if you intend to only levitate one specific object. If you want to be able to "hang anything" under it, it needs to be at the top. Unfortunately the field of the electromagnet is more "in the way" than useful to the hall sensor, as the only real field of interest is the one in the hanging magnet. One way to dampen the spiking the sensor sees is to put a small, thin plate of aluminum or copper between the sensor and the magnet pole. The eddy currents will dampen the spiking the sensor sees but the mostly steady levitating field will tend to remain unchanged. This also reduces stress on the MOSFET as it greatly reduces the oscillation frequency. Other tweaks come to mind but by and large this design is elegant and to the point, and indeed just works even as is.

[@Souparnalabs]

Fascinating , Very well done

[@Electronic_For_You]

Very Nice Project..... I can hear Afroteachmods voice in you.... You are a legend ... Your channel will grow very soon...... . . . Don't forget me then 😅

[@thelonewolf1757]

Mission accomplished! I have created the levitator using TL082 op amp, SS49E hall sensor and 2N6385 Darlington transistor instead of a mosfet. For capacitor I used 4700uf of 25v and inductor of 10mH. However it is not very stable. The magnet levitates half an inch below the coil as it is a small magnet around 10x5mm so its magnetic field is not very strong to be detected by the hall sensor.

[@DIOS-M]

Put the installation in a glass flask, pump the air out of it and the load will be able to rotate for a very long time. It will be possible to unwind it with the help of a magnet

[@agussrihartoyo]

3 ~ 5 ampere to adjust amps varibel .. use perimeter hall sensor .. amazing your mind and praktice .. salam dari Borneo Indonesia

[@ManyHeavens42]

it would take three motors to build a time machine, one for protection bubble, one To go forward and One backwards because of the constant inertia, Pulling, Pushing from all directions.but you could end up in Space,as the planet is Moving as well.

[@emanuelwise9222]

What an amazing video!! You, my friend are an amazing person. If I had the money or budget like Iron Man, you my friend would be my new best friend the thing you can create oh my.

[@mokkascience]

Your contents are awesome man! Keep doing!👍

[@franklydude]

Ok maybe someone has already suggested... The further away you can control the levitation, the more impressive it is. So why not try a long distance sensor like an ultrasonic sensor, or a laser distance sensor, or maybe even js a simple IR reflector sensor...?

[@tdtrecordsmusic]

super cool !! thnx 4 sharing. congrats on it going so well. flawless victory

[@TheAMadMan]

I'd love one of these as a kinetic arts display with my papercraft and other such creatures and madness

[@Jazzwr]

This is awesome!

[@aco319sig3]

Here's what I'd like to do. Create a battery powered gyroscope, then mount that gyroscope in a triple gimbal, encased in a low-drag hovering mount. Infinite spinning gyro, as long as the battery holds out. Super low friction.

[@HorstChristophSchreiber]

8:40 I miss a disclaimer: "No banana has been violated in this video"

[@lagalil]

He punished his opponent mashing airdodge perfectly

[@whitelionfortruth]

Great Video! Thanks so much for sharing this! :)

[@Quickened1]

For his next trick, he will attempt to levitate a school bus! This is just awesome man!

[@davepost7675]

That's really cool, but I am confused at how the hall effect sensor works. On the breadboard it makes sense since there is only one magnetic field for it to detect, but once the electromagnet is on, I would think the magnetic field from that would overwhelm any from the rare Earth magnet.

[@salehsalehi8955]

Amazing Video. Still trying to locate the Hall Sensor, in relation to floating magnets..

[@klaus6178]

Very cool.

[@mikeconnery4652]

That was a really great video.

[@PUNKSBR]

In the beggining of the video I was like: "Dude just make a bigger one to levitate churchs and christians during the apocalypse..." But after seeing the vibrations on the graphic (The waves producing letter similar to Hebraic) I remembered that there is something with a big magnetic power above us (The Sun) and also one more very powerfull too (The center of the earth)... God saved us before he created us, THANKS FOR THE VIDEO, SHALOM AND GOD BLESS U.❤ SORRY FOR ENGLISH, I HAVE NEVER FINISHED MY CLASSES, I AM FROM RIO DE JANEIRO.

[@joaopetrusdesouza5707]

Very good! I will design the board to assemble a prototype. Thanks.

[@miriamramstudio3982]

Great project. Cool video. Thanks

[@01100ALLtypevideos]

[@fefafafe5059]

Nice job done

[@calicoesblue4703]

Awesome Video & Very Informative.

[@yeetmcmeat]

a big 500 lb pull magnet on the top would be amazing, I've got one that does around 500 lbs and its meant for magnet fishing, it wasn't too expensive either.

[@zilog1]

Meatball man...

[@mumblety]

This is awesome! I'll have to make my own some day!

[@MagnetOnlyMotors]

Nice.

[@jorcasfe]

brutal buen contenido saludos desde Arequipa - Peru

[@meclucas]

This is a really interesting project, but I believe you could revisit it trying to implement a PID controller (it could be either using a microcontroller or using an analog design). There are some academic references about this, but I haven't seen anyone in KZbin do a deep dive into the topic.

[@MadScientist267]

Analog FTW

[@thehammurabichode7994]

@Hyperspace Pirate 0:44 PLEASE PUT A SEIZURE WARNING AT THE BEGINNING OF THE TITLE (If necessary)

[@Scmnerd]

I ate that banana and started levitating

[@kreynolds1123]

Might try wireless power transfer in conjuction with magnetic levitation. A few LEDs dont need much power. It might be interesting to make a levitating Brushless DC motor torque off earth's magnetic field.

[@nosebomb4550]

Thanks for putting in a banana for scale. It would've been impossible to tell otherwise

[@zionfranz]

I don't think I saw one neodymium magnet that wasn't chipped XD.

[@klaus6178]

That is because of how fragile neodymium is. I learned this the hard way. I purchased around 20 neodymium discs around the size of a nickel and to test their strength I set half on my table and the other I held and slowly crept closer. When they finally came together, it was very fast and all but a few of the magnets were broken.

[@ostanin_vadym]

Thanks for the content

[@jahmariosworld]

Couldn't you harness the energy of the motion to feed it back?

[@smokey-nb2hi]

This is awesome

[@bobnoble6476]

8:30 my man makes a flying banana and doesn't put it in the thumbnail. legend.

[@GrandmasterUV]

Very awesome. Try a helium space foil mylar saucer weighed down to neutral buoyancy so it flies like a saucer and doesnt fly off to space

[@shno_deela6986]

How does the hall sensor attach to the electromagnet without affecting its detection of the permanent magnet

[@kingsgambit9284]

It can be used in various ways lilefor liftingg heavy stuff for inspection in industry

[@ken_fb3678]

This is very cool !

[@omsingharjit]

Awesome and simple Thanks you . 💰💰👍👍🔔🔔

[@Edmorbus]

Nice project Thanks for sharing

[@boblake2340]

I would have used an analog feedback loop instead of this "Bang Bang" comparator approach. Probably finer control over the positioning.

[@omsingharjit]

Solid bar !! , Eddy current what why ?

[@teslabrasileiro]

Fantastic

[@petermines3575]

Cool. Flying saucer.

[@videshx818]

Very nice !!

[@user-rs8zg8ey2b]

Nice! On your ufo, you could of robbed some power from the lev coil with a coil in the ufo and a diode or 4.

[@joaopetrusdesouza5707]

Hi! How many turns of 16 wire did you put on the 2" core?

[@peterheiden]

Cool and very nice!😚

[@omsingharjit]

So .... If you do same with two sides with opposite phase you can lift even more waight right !!

[@HyperspacePirate]

It wouldn't be double, because the majority of the lifting force from this particular design relies on the ferromagnetic attraction of the electromagnet core to the permanent magnet. The field from the coil current is probably

[@omsingharjit]

@@HyperspacePirate ohhh, i got it .but is it possible with different setup if we use non ferro matrial like Air core coil and cu or Al light waight object to Levitate ?

[@WeekendAtRennies]

You are amazing

[@benmcreynolds8581]

🧲🌡️📡🔆☢️🔌🔊🔋♻️🌐☯️⚛️ Electromagnetism- (energy, wavelength, frequency) Play such a crucial aspect of the cosmos. It's really facinating how so many properties with-in Nature use: ~{"Differences"}~ That "factor" seems to be a key factor in keeping dynamic systems functioning. *High pressure/low pressure, hot/cold temp, different densities, static electric charges/discharges, electromagnetism north/south poles, different velocity/angular momentum, different amounts of energy/mass/frequency/vibrations. Different layers between different regions such as: (Land/water/air/edge of the atmosphere/space/ the different regions in space with different particle density/background radiation, creating bubbles/membrane layers/cloud regions, nebula's/Galaxy's/Galaxy clusters/ Cosmic filaments/less dense regions of space compared to dense regions of space.) All of these things are basic differences but create a way for the dynamic engine with-in Nature to continue flowing and operating to create and convert energy. Just Like How a battery 🔋 transfers + charges through a membrane layer to a - charged side. Like how regions of high/low pressure and temperature 🌡️differences create winds. In water- add some factors and It creates ocean currents and flow. Then internally in our planet it creates plate tectonics, planetary convection, geothermal activity, a magnetic field around our planet, to hold a atmosphere. 🧲🌡️📡🔆☢️🔌🔊🔋♻️🌐☯️⚛️ The natural world around us is just utterly facinating to me.

[@bryandraughn9830]

I'm trying to design a rotating tesseract built from telescoping metal tubes and magnetic balls. It can be suspended by a rail running right through the center. It's proving to be extremely difficult using actuators inside of the tubes. I just don't have the equipment. Maybe you'd be able to pull it off.

[@ramonmedina1363]

Bueno para fururo asiento del piloto que no se mariara por irnersia ni se lastimara. Claro requiere mas sensores y eletronica y convertidor mejorado.😃👆

[@acki4168]

I was thinking about this experiment. We see, with just our eyes, the levitating magnet perfectly steady (or almost). It could be interesting to see the real oscillation (whit axis direction motion perpendicular to the surface magnetc), maybe whit a lot FPS camera. Well, i mean, i think we should see this effect because the elettronic part has got a his "inertia" , the limit of frequency component to response of the system.

[@sovahc]

- Thanks for watching! - Thanks for levitating objects!

[@examiel]

First let me say that this is an awesome video. Well done in constructing, circuitry, and definitely in explaining instructions. Very easy to understand and well spoken. I have attempted build this circuit and apparatus, just a lot smaller electromagnet and different components. but am confident in choosing similar ones. My problem is that I can only get the led to go out when the magnet gets close to the hall sensor, but it won't turn back on. Unless i flip the magnet and get the opposite pole to turn it back on. It's not automatically resetting each time. i have to manually switch it back and forth. Any ideas how I could overcome this? I've only got it built on a breadboard and am just testing it out. Is it the electromagnet that causes the hall sensor to reset each time?