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

Жыл бұрын

Thanks for this comment,

@justinindustries2747

7 ай бұрын

Good idea

@jasonquiatchon770

4 ай бұрын

aluminum ????

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

2 ай бұрын

you did it? i need some help..

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 :)

@user-xu9db3pq9z

Жыл бұрын

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

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

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

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.

That floating saucer is pretty epic. Nice job!

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

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

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

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 =)

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

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

Your experiments & projects are realy inspiring

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

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

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.

Жыл бұрын

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

@Enderplays12

Жыл бұрын

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

@jorickleferink7065

5 ай бұрын

Opamps are your friend in feedback-driven devices :)

@MadScientist267

5 ай бұрын

​​@@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.

5 ай бұрын

@@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

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

2 жыл бұрын

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

Your contents are awesome man! Keep doing!👍

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.

Fascinating , Very well done

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

4 ай бұрын

Elektor magazine had this 15 years ago

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

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

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

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

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.

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

Great project. Cool video. Thanks

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

@MadScientist267

5 ай бұрын

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

Dude your nut bolt planetary system is very cool 👍

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

Try to get a fan to spin by controlling its up and down position. Move it with an asymmetrical speed up and down. Another interesting thing would be be to add magnets to a fan hub and then generating a stepper motion from smaller magnets in the fan and smaller radial coils outside the main coil in the larger magnet/core assembly. 👍

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

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

2 жыл бұрын

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

@Ferraday

2 жыл бұрын

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

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

Nice project Thanks for sharing

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

@linatan2064

2 жыл бұрын

Me too

@Scyth3934

Жыл бұрын

@@linatan2064 me too

@UTKETCHUP

Жыл бұрын

And so it begins...

Awesome Video & Very Informative.

Nice job done

That was a really great video.

Thanks for the content

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.

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

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 :)

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

2 ай бұрын

that's a really cool idea! 😎

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 :)

@Ozzy3333333

Жыл бұрын

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

Жыл бұрын

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

5 ай бұрын

The elegance of analog is lost in a microcontroller.

@StormBurnX

5 ай бұрын

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

@MadScientist267

5 ай бұрын

@@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.

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 😅

Very cool.

Fantastic

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

Very nice !!

This is very cool !

Thank for sharing! Could you tell how many turns have you done for the magnet?

I have a running theory that gravity and magnetism are more synonymous than we realize, if you can find the link it may revolutionize how we look at both and it may help us look at space travel in a new way.

This is awesome

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

He punished his opponent mashing airdodge perfectly

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

Amazing bro

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

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

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

5 ай бұрын

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.

Cool and very nice!😚

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

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

You are amazing

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.

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.

Great content Is this block of aluminum the same one milled by the cnc 😃

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

Nice.

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

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.

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?

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

Жыл бұрын

Meatball man...

Love it

As it's a switching magnetic field, is it possible to extract power from the field? Maybe to run the LEDs And avoid the need for a battery? If energy is extracted from the field, I assume it makes it more unstable.

Sweet!

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

This is a hypothetical question. But if you had put the 3 pound wrench on top of the 2 stacked magnets, would the electric magnetic have pulled the wrench up or have stayed with the strong magnets?

Impressive bro, can you please tell me which software do you use for designing electrical circuits, projects ,.etc.??

@HyperspacePirate

Жыл бұрын

www.falstad.com/circuit/ for simulations KiCad for schematics / board layouts both are free

I have noticed how laboratory gram scales use a non-ferrous piece of metal with swirls in the surface suspended between a very thin gap permanent magnet to act as a magnetic dampening field. The swirls act like mini closed loop coils on the metal surface. Would you be able to attract non-ferrous metals to your magnet.

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.

I ate that banana and started levitating

🔥landed🔥

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...?

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.

Cool. Flying saucer.

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

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

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.

Nice😍👍

cool!!!!

Couldn't you use a series of Hall effect sensors mounted vertically between the base of the unit and the bottom of the electromagnet? You would need a slightly different 3d printed design so they're all roughly the same distance away from the floating magnet. Or is the problem that the sensors wouldn't trip at all because of the "direction" of the magnetic poles?

@clonkex

Жыл бұрын

I think the main issue would be that you'd then need a microcontroller to interpret the signals sensibly. I don't think it would be feasible to keep the analogue design with that many sensors.

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

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.

Ima gonna build a smaller version of your levitron with IRFZ44n and SS49E hall sensor and the LM324 amplifier. I have prepared a coil that has no core but can still attract 5x10mm magnet. it is about 200M of 0.315mm, above 1000 turns. I will then expand it using a bigger coil

So would it be possible to power the LEDs on the flying saucer by spinning it? So without the battery, basically turning it into a generator?

Can the magnetic field be shaped dynamically like RF systems that do beam forming with multiple antennas ?