Making a Totally Silent LEVITATING Fan Using Lego

  Рет қаралды 489,364

Jamie's Brick Jams

Jamie's Brick Jams

10 ай бұрын

Patreon: www.patreon.com/user?u=122597865
See my latest experiments and behind-the-scenes footage!
Let’s level up our levitating Lego concept by building a totally silent motor that floats on a cushion of magnets!
This Lego build makes use of a reed switch to detect magnetic fields, which then sends pulses to a wire coil that powers the rotation of the levitating fan. It’s quite mesmerising watching this desktop contraption float in place, while spinning wirelessly.
Because of how simple this circuit is, you can easily build your own motors using this principle. All you need is some wire, a reed switch, and a power source, like some batteries! I hope this helps inspire some Lego builders out there to experiment more with what it can do 😀
#lego #motor #levitating #fan #electronics
If you’d like to see more behind-the-scenes images of my progress while developing these Lego experiments, feel free to join my channel membership beneath the video!

Пікірлер: 468
@gokalpcetin2769
@gokalpcetin2769 10 ай бұрын
Everyone mentioned the problems with number of magnets and the coil etc. but I think we are missing a huge point here; the propellers are reversed, they are looking the other way, so even though they will push some air, they are efficient in the other direction due to their curve. Swapping those the other way without changing anything else would increase the moving air incredibly. Nice project, cheers
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
Oh man I didn't even realize that 😲😅 Thanks for the heads up!
@gamintoaster6220
@gamintoaster6220 10 ай бұрын
and yeah try to fine the right propetters those look a little big. ps try to stabilize the shaft, the more it bounces the less consistency you'll have
@David_Mash
@David_Mash 10 ай бұрын
Yeah plus if they are pushing the axle into the wall, you're creating unwanted friction. Those props could be creating thrust to reduce friction instead
@ggsupergaming3583
@ggsupergaming3583 10 ай бұрын
exactly the three things i was gonna say
@adil080_
@adil080_ 10 ай бұрын
how to improve this thing: don't use a reed switch
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
Solid advice 😂
@agaldoo
@agaldoo 10 ай бұрын
Use a hall effect sensor and a transistor instead
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
@@agaldoo that I certainly will!
@xiar5546
@xiar5546 10 ай бұрын
@@JamiesBrickJamsor even just a transistor with the reed switch. Will still work fine but won’t need any sort of digital control.
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
@@xiar5546 seems a few folks have suggested that, so will definitely give it a try. Should be able to transfer a lot more power anyway. Just gotta find a good position for the switch
@no-expert
@no-expert 10 ай бұрын
Idea for improvement: Use a transistor or silent relay to switch the main circuit with the reed switch. This might reduce the binding effect because you can use minimum current through the reed switch and fine tune it with one less limitation.
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
Most certainly will, thanks for the suggestion! 🙏
@Zeddify
@Zeddify 10 ай бұрын
THAT WAS MY IDEA BUT WITH A HALL SENSOR
@jimstanley_49
@jimstanley_49 10 ай бұрын
That was my thought too. With only a couple more components, you can keep the simplicity of the reed switch and remove the current limitations. Just add a MOSFET and resistor.
@x1roboticxs
@x1roboticxs 10 ай бұрын
U can use a reed switch but it should be connected to a transistor and the output of the transistor can be connected to the coil. This can prevent the lock up of the reed switch on passing high current as the high current only passes through the coil leaving the reed switch isolated
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
That makes a lot of sense, thanks! Yeah would be lovely to chuck a bunch of current through it without locking. Though I've a suspicion it'll still be quite 'bumpy' unless the positioning is perfect. Great advice though, thanks - will try it! 🙏
@mecadragoon
@mecadragoon 10 ай бұрын
yee i was gona say that aswell
@DarenPage
@DarenPage 10 ай бұрын
Mechanical switching on motors is bad as you're limited to the physical moving speed of the mechanical parts.
@mecadragoon
@mecadragoon 10 ай бұрын
@@DarenPage its not a mechanical switch, its eletronic
@DarenPage
@DarenPage 10 ай бұрын
@@mecadragoon the reed switch is just that; a switch operated by a magnetic field.
@nigeladams8321
@nigeladams8321 10 ай бұрын
Could you use three magnets instead of two on the base? Make it less likely to pop out by putting the floating magnet between a triangle of opposing magnets
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
I suspect you could! It's usually pretty stable until I shove it around too much, but perhaps even putting the 3rd magnet on top could keep it from bouncing up too high. Cheers, will give it a try!
@Panthercraftcompany
@Panthercraftcompany 8 ай бұрын
@@JamiesBrickJamswhere do you get the fan blades
@CedarGroveOrganicFarm
@CedarGroveOrganicFarm 6 ай бұрын
4 magnets might be easier than 3 because the Lego is more readily compatible with right angles*
@Ashchu117
@Ashchu117 10 ай бұрын
how does this not have more views? this is epic! improvement idea: try different fan blade styles and magnet sizes!
@normalwaffle
@normalwaffle 10 ай бұрын
These are basically the only fan blades from Lego, so you can’t really make the fan different without making it less sturdy, besides changing the number of blades
@normalwaffle
@normalwaffle 10 ай бұрын
Or I guess glueing it together is an option
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
Haha thanks 🙏😁 I could totally try different non-Lego blades. Though as the other commenter noted, Lego doesn't offer many blades. It's a pity their helicopter blades are so heavy. I will try more magnets though so there are 4 instead of 2
@Hescor_Nellse
@Hescor_Nellse 9 ай бұрын
on the front end put 2-3 magnets above. in the back put 2 weak magnets two prevent friction at the end against the lego stopper. also 2-3 magnets above to prevent wobble and stabalize the axel.
@hellothere6627
@hellothere6627 10 ай бұрын
I misread the title and thought you made a silent Lego hovercraft, but this is was a happy surprise, and makes me very jealous about how well you can balance magnets. 👍
@ailogicism236
@ailogicism236 6 ай бұрын
You need to account for the weight of the fan and the force generated by the wind. Also, add a sharp point to contact point, possibly with a bearing system to help lock the rotation side. Should help you tune the magnetic repulsive forces to balance the additional torque.
@oetken007
@oetken007 10 ай бұрын
Nice project, it looks cool. Maybe use 4 magnets each side and a second coil on the opposite side of the first one. I think the reed switch is ok, maybe play with the best position or put a second one in parallel to increase the on time.
@a.1441
@a.1441 10 ай бұрын
In addition to adding a third magnet to constrain the shaft radially you should add a magnet on the end of the shaft opposite of the blades - and a magnet on the thrust structure to maintain zero contact before and after thrust
@Vibe77Guy
@Vibe77Guy 10 ай бұрын
2 improvements- extra restraint magnets above the levitation bases, and have the reed switch fire a higher current relay. Possibly an opto isolator.
@lesto12321
@lesto12321 10 ай бұрын
at those speed a solid state relay. a small 1A transistor could probably do the job just fine
@the_clockwork_jackass6897
@the_clockwork_jackass6897 10 ай бұрын
I was going to suggest just using multiple reed switches in parallel, but you'd need them to fire at the exact same time, so I think what y'all are saying would be better, I also thought you may be able to simply glue a magnet to a little limit switch, but that'd probably pull the shaft too much
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
Great advice cheers man - will try some experiments with a transistor to handle the power, and add another magnet or two to prevent it bouncing upwards
@Neris-of-the-hidden
@Neris-of-the-hidden 10 ай бұрын
Omg the way you drew the circuit is so beautiful
@der_deutsche9855
@der_deutsche9855 9 ай бұрын
Put four instead of two magnets on the rod, but with two north and two south polarity, that should stabilise it and give it a little more speed, but i dont know, if it would work then with the switch
@infamoussquire2955
@infamoussquire2955 10 ай бұрын
you could add suspension points on the rotating axle by adding the piece with holes in it then connecting that piece to the rest of the board for more stability. the hole will allow the axle to move freely whilst holding it in place with minimal noise due to a small amount of friction. hope this helps Jamie, great vid!!!!
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
Thanks a lot! That's actually a great recommendation and very easy to implement - will give that a bash 😁
@AlRoderick
@AlRoderick 10 ай бұрын
My first thought is that you could save a few parts by attaching the magnets to the end of the fan blades themselves, so a three magnet structure or even more. It doesn't look like the attachment system for LEGO gives you a lot of options for that. So instead you could build a six-sided hub and have three arms with magnets on them and three fan blades alternating on a single rotating structure, the magnet arms would have to be longer than the fan blades, but that would give you some additional leverage. Then you can build a much shorter levitating shaft that is more stable, I'm picturing about the proportions of a ferris wheel. The supports on both sides would be tall enough that the fan would be able to spin above the coil. You build a structure at the bottom to hold two coils far enough apart that only one of them needs to be on at any given time, as a magnet comes around one gives it a little pull and throws it towards the other which gives it another little pull just in time for the next magnet to come around to the first coil again. It would still pull the same voltage and current. It would just be connected twice as much if you get the spacing right.
@ZaryanUrRehman
@ZaryanUrRehman 10 ай бұрын
Wouldn't it be better if you use atleast 3 coils around the levitating shaft with an ESC and you can also increase the magnets on shaft
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
It likely would. I actually chose to use just one coil for a silly reason - aesthetics. Figured it'd look cooler with minimal stuff in the way so you can see the levitating shaft better. But adding more magnets to be propelled makes a lot of sense, will try that! Thanks!
@theanomynusguy
@theanomynusguy 10 ай бұрын
@@JamiesBrickJams cant you just put three coils on the bottom? im guessing it would still work but not sure
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
You could, but I don't think that'd help timing or output. If anything, I suspect it would make it less efficient as the magnet has to be past half-way along the coil to be pushed in the correct direction. So the other coil before the middle one would be wasted
@thebrizzell
@thebrizzell 10 ай бұрын
Another set of levitating over-the-top to keep it from vibrating so much
@nanaki-seto
@nanaki-seto 2 ай бұрын
4 magnets or more per end to keep it more centered and stable. haul effect switch as well and you could probably get it spinning pretty good
@cik1964
@cik1964 10 ай бұрын
Great idea and it will be more stable if you double the magnet from top to keep the force of the shaft equal than you can add more coil and cross magnet to have more power
@engineer0239
@engineer0239 6 ай бұрын
To prevent the Switch from fusing, you can use a mosfet.
@fench1234567
@fench1234567 6 ай бұрын
You could use an arduino or any other microcontroller to simplify tuning predictable reactions for the timing/switching part and speed control in an all in one solution. If you do that, a Hall effect sensor input usage might be a more reliable alternative to the reed switch. Anything you do is going to be somewhat finicky, but with good programing and design you can push tolerances. One thing I noticed was that your fan blades were convex side towards the direction of flow. This flow choice is possibly less linear than reversing it. Reversing it MIGHT help to minimize seemingly random turbulence that derails your fan. Another high speed compliant addition would be a metal on metal contact pivot point such as a needle against a slightly concave or flat mirror polished disk.
@BotherRed
@BotherRed 10 ай бұрын
I think using some type of very smooth bearing on the back would be helpful rather then simply having the axle resting on the backboard. That's probably your greatest source of friction, with air being the second, that's sapping away any power your set up can provide. Having that would also help to stabilize it and stop it from bobbing around so much.
@oh_finks
@oh_finks 7 ай бұрын
in my opinion, air is probably the greatest resistance
@PopeGoliath
@PopeGoliath 10 ай бұрын
I'd be interested to see what you could accomplish if you took an existing fan motor and tried to replace its bearings with magnetic ones. You'd start with all the power and efficiency of a commercial motor, and then all you have to do is design the suspension for it
@BrightBennett-wo2bz
@BrightBennett-wo2bz Ай бұрын
You should put a box around the levitating magnets, except for where they are necessary!
@Wreckedftfoxy
@Wreckedftfoxy 10 ай бұрын
keep the angle stuck on the reed switch put 2 more magnets to keep in place add 1 more coil and reed switch for a 2 pull motor
@nerdomator
@nerdomator 7 ай бұрын
Dynamically balancing your shaft and fan assembly will reduce the wobble and hopefully stop the rotor from falling out of the levitation suspension. It should also improve the rotation speed.
@stratos2
@stratos2 10 ай бұрын
Maybe you could use two reed switches offset from each other, one turns the coil on positive, one turns the coil on negative. That way you would get a longer "power stroke" without more current.
@neodas9540
@neodas9540 10 ай бұрын
to improve: maybe add weight at the opposite to balance the blades part (avoid wiggle)
@bakupcpu
@bakupcpu 10 ай бұрын
Great little demonstration of a pulse motor. You can also make a single coil pulse motor with a few transistors it will last a little longer then the reed switch. Cheers!!
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
Thanks! And yeah you're totally right, I really should have used a good power transistor to handle the power delivery - will definitely give that a try. Cheers for the advice 😄
@lazyfpv7005
@lazyfpv7005 9 ай бұрын
Perhaps a cup with a hole and a spring to each end to get rid of the wobble and placement during low rpm. Maybe make it longer and ad 2 more motors with different radius to control wobble. good luck and thanks.
@calvinthedestroyer
@calvinthedestroyer 6 ай бұрын
Kool, add more polls and another coil at the top. Also use a delay timmer to increase the on-time of the coil.
@lukeomalley3769
@lukeomalley3769 10 ай бұрын
How did I not know this channel existed until now. That is so cool. I am going to watch all of these videos. Keep posting man, this is great. Such a soothing voice too 👍
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
Cheers Luke 😁 Appreciate it! Hope you're recovering well after the Raven's comp now 😜
@roger_isaksson
@roger_isaksson 10 ай бұрын
Put magnets on the upper side as well, and a magnet on the rear to counteract the reaction forces. Mass manufacture in Asia and Bob’s your uncle. Nice job!
@wilsonseymour993
@wilsonseymour993 5 ай бұрын
Orient the fan blades so they are rotating in the correct direction, also if you orient the fan blades in a way that lift/push the rotating assembly into the baseplate and ad a cup to hold the rotating assembly it should run more smoothly and securely.
@DashzRight
@DashzRight 9 ай бұрын
Airflow is what produces noise… so yeah, you always gonna have noise the more aire you want to push.
@d4ro
@d4ro 10 ай бұрын
great experiment , using magnets this way reminds me of superconductors. two things come to mind to stabilize your output shaft: 1. using a fan with more blades will make it also more stable, but require more energy 2. use more magnets in the upper side to keep it from falling off.
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
Thanks! I'd quite like to try more blades vs less blades to see how it performs. But ideally yeah, I'll be increasing the power output quite a bit with a transistor. And I'll certainly use some more magnets on the top to try prevent it bouncing around. Cheers for the suggestions!
@Sparkjoylearn
@Sparkjoylearn 9 ай бұрын
You can use a reed switch to trigger a relay to get MASSIVE currents to go thru the coil
@lilconfused686
@lilconfused686 10 ай бұрын
Reed switch works perfectly fine if combined with a transistor so that the power goes through the latter and the former does not fuse
@10aabishek73
@10aabishek73 10 ай бұрын
Use 3 read switch and connect them in parallel, use high voltage, double the coil and magnet also
@conorstewart2214
@conorstewart2214 10 ай бұрын
That reed switch will eventually wear out, especially if you are putting a relatively large current through it. Relays can have the problem with over current or motors that they fuse the contacts together, hence stopping it from working, you might have similar issues with a reed switch. The instant those contacts touch, which will be a very small area, there will be a large current draw by the coil. You would be better using Hall effect sensors like a lot of motors use, you would then need something to drive the motor though, you could make your own circuit with a transistor or mosfet or just use an off the shelf motor driver. Another possibility is to use a led and photodiode or phototransistor, you can buy them already built and it triggers when something passes between the led and sensor. Similarly an IR reflectance or proximity sensor could work well too.
@shadrachgaming3233
@shadrachgaming3233 9 ай бұрын
Make beams on the sides so the magnet wont slip out in a crazy way
@mikeryan3537
@mikeryan3537 7 ай бұрын
2 more Magnets at 90 deg on a cross rather than a beam then you get 4 impulses instead of 2. Really cool contraption
@JamiesBrickJams
@JamiesBrickJams 7 ай бұрын
That would have made much more sense! Cheers for the suggestion - will certainly try that on a future version
@likemau5552
@likemau5552 10 ай бұрын
Add more magnets, now you have the most basic setup, the more pairs of magnets you have the more frequently the coil pushes the magnets, also you can use a reed switch but make it turn on a transistor so your reed switch wont weld itself, and also you could get away with much much smaller coil, as for the power delivery you can still use the signal from that one reed activated transistor to turn on/off a pair of smaller coils sitting close. if you have lets say 5 pairs of magnets as your rotor you make it so the polarity alternates - the coils are apart exactly how far apart magnets are and the coils alternate in polarity too, now you can extrapolate it in two ways. Use one rotor and for each magnet you got one coil, or you make a second rotor and second pair of coils, and if the shaft already spins the rotor acts as a flywheel, you can hook up the transistor gate to one of the coils so it opens and closes exactly as fast as the rotor spins, now the only thing to do is speed control which you can implement as potentiometer which you put in front of the transistor gate, hide the circuit with bricks (also, use a sturdy li-ion 18650, pick one from philips/sony/samsung etc., you want the current to not be the limiting factor, but also you need a way of limiting current if you use one of them big boi batteries, they are quite powerful and will fry the circuit if you dont have a way to throttle them and limit their current). I hope that i provided at least some ideas for anybody! Sorry for the wall of text
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
Woah that's some phenomenal advice, really appreciate you taking the time to explain this! 🙏 I think I already have most of the components here.. love the idea of using a LiPo to provide all the current it needs. Wiop just need to play with combos of coils and magnets. Thanks again for the ideas! 😁
@likemau5552
@likemau5552 10 ай бұрын
Well, the project is dope and I got excited like a little kid 😅 Sub well deserved ❤
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
@@likemau5552 aw that's a hell of a compliment, thanks man! And cheers for the additional ideas 😉
@AK-vx4dy
@AK-vx4dy 10 ай бұрын
Adding beefy diode oposed parralel to coil will greatly reduce the arcing in switch wich will make his life longer, also small capactior parrael to contacts can help reduce arcing.
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
That's really interesting, I've heard a few folks me too using a cap - will definitely give that a try!
@chiron9536
@chiron9536 10 ай бұрын
"how to spin to spin something wirelessly: alright first here are some wires..."😭😂
@Delus1on_L
@Delus1on_L 10 ай бұрын
Could you try connecting the fan indirectly through magnets? If you could get the fan stabilized on its own, you could try using weak magnets on the fan and axle to still “connect” the fan to the axle, but the weight of the fan may not bring the axle rotation down too much, while still getting the fan to move with the axle.
@balazsberecz5501
@balazsberecz5501 10 ай бұрын
This is GENIUS
@gtag174
@gtag174 10 ай бұрын
could use an optocoupler in series with the reed switch such that the reed switch pulses the optocoupler which in turn pulses the coil.
@Skullknight-rc3uh
@Skullknight-rc3uh 6 ай бұрын
Here’s an idea: THIS but turn the fan into a lightsaber, and now you have a “force” spun lightsaber and stand
@bricklejar
@bricklejar 7 ай бұрын
love all your videos man, your voice is perfect, your lighting is so cool and professional, your pacing is perfect.
@JamiesBrickJams
@JamiesBrickJams 7 ай бұрын
Wow I appreciate that a lot, thanks so much for your encouragement! 🙏
@swimcube4680
@swimcube4680 10 ай бұрын
Make the far end of shaft pointed and rest it in a concave shape. That way it won't walk off the flat wall and it will have less resistance.
@seekoutguy
@seekoutguy 10 ай бұрын
Add some relays and you can increase the motor voltage without nuking the reed switch
@Daniel-uo5lm
@Daniel-uo5lm 7 ай бұрын
This thing cools more than one would assume from the fan. It also cools because it's so frikkin cool.
@JamiesBrickJams
@JamiesBrickJams 7 ай бұрын
Haha cheers 😂🙏
@operator8014
@operator8014 7 ай бұрын
A more stable mount for the reed switch that gives repeatable and precise adjustment seems like it would help. Also building a front and rear cage for the rotor shaft that would keep it from being launched out of the stator would be helpful. Maybe make it 5v USB powered?
@JamiesBrickJams
@JamiesBrickJams 7 ай бұрын
I reckon you're right, definitely a better mount would help. And great idea with the USB connection! My original idea was to use a solar panel, but my coil wasn't ideal for that so it needed more juice. USB would be a good idea for a future version
@maartendj2724
@maartendj2724 9 ай бұрын
Aside from the already mentioned suboptimal blade positions, you could consider a better fan, e.g. hobby-grade plane or quad propellers
@_XRMissie
@_XRMissie 10 ай бұрын
Everyone's recommending using a transistor in conjunction with a hall effect sensor, even though you already mentioned that in the vid lmao. However I've not seen anyone recommend putting an opposing coil. Rather than having 1 coil, you could use 2 on the sides as an opposing pair. Least then each time the coil fires, they're pulling equally from both sides and that should negate any wobble induced by the coils. Bonus is more torque too. Could even use 2 or more coil pairs for even more power but that may overcomplicate it. Good work lad, this channel has serious potential!
@pauljs75
@pauljs75 10 ай бұрын
Needs a bit of balancing at some point. Some foil tape like that used for duct work may help do it. (Not to be confused with duck-tape, it has a heavier metal backing.)
@audioman2011
@audioman2011 10 ай бұрын
Use some ferromagnetic core in the coil for improved efficiency.. Also, add more magnets on the up position, front and back to keep the propeller from bouncing like that.
@Xenro66
@Xenro66 10 ай бұрын
Did you not pay attention to what he said? There's no iron core to prevent the magnets getting attracted to the coil in an effort to reduce the wobble
@Dejawolfs
@Dejawolfs 10 ай бұрын
try adding more magnets around the magnets to stabilize the rotaiton
@WonderingWanderer88
@WonderingWanderer88 10 ай бұрын
What about having another suspension magnet set up front the blade, so that it doesn't wiggle too much? It'd need the whole setup to be higher, so that the blades are not stuck with the enlarged base, though.
@tiporari
@tiporari 8 ай бұрын
Add additional magnetic confinement to stop the rotor from jumping out of alignment. Add a second magnetic thrust arm and another reed switch to get two pulses per revolution. You can do this by repeating things already done and still using reed switches. Replace reed switches with hall effect transistors.
@JamiesBrickJams
@JamiesBrickJams 8 ай бұрын
All good suggestions, thanks! Will definitely give the stabilising magnets and additional magnets on the rotating axle a try
@innatislenkoinna5655
@innatislenkoinna5655 20 күн бұрын
565к6ггггггггггггггекнгек7гшенгнегкккккккегшкнгегегшнег
@ikonix360
@ikonix360 9 ай бұрын
Two more magnets will make the motor stronger. Also another coil placed exact opposite and connected in series with the first coil will make it stronger as well given there's two coils acting on two magnets at a time.
@JamiesBrickJams
@JamiesBrickJams 9 ай бұрын
Both good points, thanks! Adding magnets is certainly an easy upgrade. Two coils also makes sense, though I'd need to use a transistor to deliver power otherwise the reed switch will likely lock up due to the power demands of two coils!
@sidneyswerissen3910
@sidneyswerissen3910 7 ай бұрын
How to improve?: Suspend the fan between four magnets (on each side)instead of let it levitate between two on both sides .. Use more coils for more force
@zylek4163
@zylek4163 10 ай бұрын
Damn, I love these videos! I dont understand how this guy doesnt have more views and subscribers.
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
Aw thanks a lot, really appreciate it 😁
@aliciawelch3127
@aliciawelch3127 10 ай бұрын
Fr
@DUKE_of_RAMBLE
@DUKE_of_RAMBLE 7 ай бұрын
Suggestion: move your coil slightly closer to the reed switch (or whatever you replace it with) and then angle the coil back towards center. This way it's repulsing the magnet more radially and (hopefully) more work is done for the energy used.
@JamiesBrickJams
@JamiesBrickJams 7 ай бұрын
Hmmmm I didn't think of angling the coil ... not a bad suggestion, thanks! Will look into that in a future version
@trains6479
@trains6479 10 ай бұрын
Use another set of magnets to keep it from sliding sideways and upwards from the fan blade wobbling
@WetDoggo
@WetDoggo 10 ай бұрын
You could replace the back plate for the axle with yet another pair of magnets
@stonehengeman
@stonehengeman 10 ай бұрын
He has strong whiteboard writing powers.
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
😊
@KMark43
@KMark43 10 ай бұрын
I love these videos, i can't wait to see you channel grow 👍 just subscribed
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
Aw thanks a lot, I really appreciate it 😁 And cheers for joining!
@dancoulson6579
@dancoulson6579 10 ай бұрын
Adding a capacitor in paralell with the reed switch will help to reduce arking when switching DC loads - When the switch opens, the capacitor must charge up, temporarily leaving the contacts without a voltage drop.
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
Woah that's really clever, thanks for the suggestion! I'll definitely give that a try 😲
@fangthewarrior
@fangthewarrior 10 ай бұрын
Perhaps you could use something like a relay or mosfet, using the reed switch for the signal instead of handling the load 🤔
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
That makes a lot of sense, a few folks have suggested that, so guess I'll have to give it a try! Cheers 😁
@upsidedownairline9388
@upsidedownairline9388 10 ай бұрын
@@JamiesBrickJams If you do that, also make sure to add a diode in the blocking direction (pointing from negative to positive) parallel to the coil. The coil generates high voltage pulses when turned off, which isn't a problem for the reed switch but almost definitely will be for the MOSFET.
@Log_dog_VR
@Log_dog_VR 6 ай бұрын
I love your videos gives me inspiration thank you and keep it up 😁
@JamiesBrickJams
@JamiesBrickJams 6 ай бұрын
Really appreciate that, thanks 🙏😊 Best of luck with your own projects
@julians6679
@julians6679 10 ай бұрын
Housing around the fan to have sort of like a chimney effect would be a low-tech improvement
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
I'd actually love to try that, thanks for the suggestion!
@andrenutbrown2284
@andrenutbrown2284 8 ай бұрын
Possibly putting two magnets on either end of the shaft on top of the two or four of them that are already there and compressing together so the shaft was forced into a center position you could even try using the a magnet in the end of the shaft and another magnet on the base of it where it keeps it from moving laterally
@JamiesBrickJams
@JamiesBrickJams 8 ай бұрын
I'm sure you're right about the ones on top stabilising it - will definitely give that a try on the next version. Cheers!
@MECKENICALROBOT
@MECKENICALROBOT 7 ай бұрын
Awesome vid btw!!! With the fan blade out a bit further…. I wonder about it’s balance. Or if more repulsive forces would be needed from the base magnets closer to the blades.
@JamiesBrickJams
@JamiesBrickJams 7 ай бұрын
I think you're right, it probably does need some better balancing. The entire arm was a bit wobbly, so the next one I'll try a set of liftarms rather than a bendy axle
@francczechamp9575
@francczechamp9575 10 ай бұрын
I'm not sure if it's possible to do it while levitating but, What if you make it move using the design used in induction motors? (Commonly seen in water pumps) So basically, there are multiple coils around the shaft. That shaft is built as a squirel cage ( a straight cylinder made of two circles connected by metal bars that are tilted at an angle) This way, the coils induce current on the bars which then causes them to react to magnetic fields and boom, a motor This is likely oversimplified but there are vids that explain this wayyy better (As I wrote this, I realized you're using a similar concept anyways, but I decided to send it anyways because who knows! Maybe it'll inspire you in a way! But yeah, if it doesn't work, then just add more coils)
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
Definitely need to do some more research here, but I think I get what you mean!
@eekee6034
@eekee6034 8 ай бұрын
I wanted to hit Like twice! :D You could use a transistor so the reed switch doesn't have to handle the full current of the coil. Remember to use a diode so the coil's back EMF doesn't kill the transistor. Instead of a reed switch, you can use a small coil. When a magnet passes it, a small current will be created which you can amplify with a transistor. Maybe a MOSFET if it's very small.
@JamiesBrickJams
@JamiesBrickJams 8 ай бұрын
Aw thanks a lot! That'd a great point, a few folks have suggested using a transistor to deliver the power, which makes a lot of sense. That's such an interesting idea to use a coil to deliver the signal to the transistor though. I'll definitely give that a try to see if that can work as a switch. Thanks for the suggestion!
@larrythehedgehog
@larrythehedgehog 10 ай бұрын
Add a thrust bearing at one end of the shaft and lighten the shaft by moving the coil closer to the magnets. And uh yeah. Get eid of the reed switch.
@thecatofnineswords
@thecatofnineswords 10 ай бұрын
My theory on improvement idea - more driving magnets. The impulse is a touch off vertical and it looks like that upsets the stability of the motor core, sometimes enough to push it outside the stable region of the bearing magnets. I think having three or four magnets rotating past the coil will help in a few ways. More pulses per rotation - smoother rotation, more mass - acting like a crude flywheel, and it allows more power. If you’re up for some harmonic analysis, there’ll be a certain rotation frequency at which the impulse will offset the vibrations, acting as a damper. And some other frequencies at which it will amplify them. This is a neat project and I’m really happy the algorithm brought me here
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
Thanks a lot 😁 Also a big thanks for your suggestions! Definitely agree some more driving magnets would do a better job at driving a smoother rotation. I'm afraid the harmonics are a bit above my pay grade, but very interesting to hear that 😅 Will definitely try another version with more magnets and a light flywheel!
@kahveciderin
@kahveciderin 10 ай бұрын
dont forget to add a reverse polarity diode to the coil and use a hall effect sensor with a transistor instead of the reed switch
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
Will definitely give that a try!
@saray.ashinn
@saray.ashinn 10 ай бұрын
I got an idea to possibly stabilize the axle a bit Maybe also put magnets (in the same distance) above the axle, just like the ones underneath the levitating axle. This might stop the front from wobbling around so much, but also could make it work way worse In my opinion you already have great results anyway though-! Keep it up
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
Thanks! And yeah, I suspect you're right - will try some magnets on the top to help stability 👌😁
@isodoublet
@isodoublet 7 ай бұрын
"Let's start with spinning something wirelessly... now this is a small coil of wire"
@JamiesBrickJams
@JamiesBrickJams 7 ай бұрын
Haha true 😆 Should really have said 'contactless' or 'brushless'
@isodoublet
@isodoublet 7 ай бұрын
@@JamiesBrickJams XD
@trail_mix24
@trail_mix24 9 ай бұрын
that thing really needs a harmonic balancer. those propellers are not meant to spin that fast, and were never balanced to begin with which is part of why it wobbles. that and the shaft
@Irish_Ronin
@Irish_Ronin 7 ай бұрын
You might consider a 4 bladed propeller to improve balance.
@swecreations
@swecreations 10 ай бұрын
Waiting for a V2! If you want to buy a fully silent desk fan though the newly released Arctic Summair is probably what you're looking for. It's made by a PC cooling company so they know how to make a silent fan. Infinitely variable speed and you can even get a version with a 25 hour battery and USB-C charging, plus it's very cheap too! Edit: it also comes with a 6-year warranty, forgot to mention that.
@caeli5532
@caeli5532 10 ай бұрын
I don't think he will survive
@swecreations
@swecreations 10 ай бұрын
@@caeli5532 I don't quite understand what you mean with that? 😅 If you're talking about the Arctic fan it comes with a 6 year warranty so definitely think it will.
@dronko-fire-blaster
@dronko-fire-blaster 10 ай бұрын
supper cool I sorta want to make one of these, not much to it all I'd really need is the magnets
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
Totally, it's way easier than it might initially look. Good luck man!
@BryanSantos-pj8yg
@BryanSantos-pj8yg 9 ай бұрын
The amazing levitating fan
@reallifework1375
@reallifework1375 10 ай бұрын
I think you need to make the fan steady and also need low resistance for that I recommend ballbearing
@ChuckMcKnight
@ChuckMcKnight 10 ай бұрын
Very cool! I'll bet you could design and 3D print a single-piece fan blade that is far lighter than the one you built out of Lego pieces.
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
If I knew how to 3d print, sure 😁 It's a pity Lego doesn't have many options for fan blades
@ChuckMcKnight
@ChuckMcKnight 10 ай бұрын
@@JamiesBrickJams See if there's a local makerspace or fablab that could help you out.
@blackdragin9676
@blackdragin9676 10 ай бұрын
Make the axle longer and do mount a second coil and switch but the arms with the magnets 90 degre from the first pair
@Andrecio64
@Andrecio64 10 ай бұрын
if you put a battery in the center of the Rotor with 2 Magnets for levitation, you can make it spin by short circuit both ends of the battery using a wire.
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
Very true, that was actually my initial idea, but figured the 'wireless' method would look visually interesting. But a brushed motor is likely a good way to go to increase power without adding much complexity
@JosephCornishV
@JosephCornishV 10 ай бұрын
For better levitation stability perhaps the base magnets on both the front and rear sides can be spaced out a little further. This could expand the magnetic fields farther apart, providing better side to side movement resistance. Adding more central propulsion magnets, more copper coils, and expanding the Reed switch to cover a longer length could multiply spinning power outputs. Using a three way architecture for the central propulsion magnet arms (and all the rest) could improve power output. Using a two bladed fan could reduce drag caused by the propellers, (and result with less air flow output😅). Oh, and I agree with the other dude down there talking about fan blade arrangements. The fan blades must be angled correctly to encourage airflow output to go to the front of the device, and not to be propelled backwards towards the rear of the device. Thx G2769!
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
Some really great advice here, thanks for taking the time to comment this! I'm definitely interested in adding more magnets to the central propulsion. Using a 2 bladed fan vs 3 could be an interesting experiment too - will see how it fairs! Thanks 😁
@formdusktilldeath
@formdusktilldeath 7 ай бұрын
Maybe you could stabilise the axle by adding magnets above. It could reduce the wobble and prevent it from popping out… maybe?
@JamiesBrickJams
@JamiesBrickJams 7 ай бұрын
I'm pretty sure you're right! A lot of folks have suggested that, so it's certainly worth trying
@SrGex
@SrGex 10 ай бұрын
Man this thing is reaaaaaly cool
@JamiesBrickJams
@JamiesBrickJams 10 ай бұрын
Aw thanks a lot 😁🙏
@CelloSounds1
@CelloSounds1 9 ай бұрын
Use more magnets to repel from the coil, that way you get double the pushes if you use 4 for example
@JamiesBrickJams
@JamiesBrickJams 9 ай бұрын
Definitely! Cheers for the suggestion - I really should have done that from the start 😊
@ewansbuzz127
@ewansbuzz127 10 ай бұрын
What you could do to prevent the read switch from sticking is run it through a solid state realy as they require very low voltage and current to trigger. Then you could have the reed switch on the "qoute" coil side of the solid state realy and then you can put almoste any voltage and current through the switch side of the solid state realy. And your reed switch should no longer stick. And a solid state relay has a very little amount of latency so it shouldn't cause any issues. And they are a bit simpliar than coil bassed realays. Or you could build your own coil bassed realy for this motor out of lego. I dont know how fast it would be to trigger though. But all in all just an idea.
@husnainali1341
@husnainali1341 10 ай бұрын
Use more number of magnets in router and add another coil in stator
@Amy_in_hell
@Amy_in_hell 10 ай бұрын
Main issue I would solve is power. The reed switch fusing is severely limiting the magnetic force you can output from the coil. My (admittedly armchair engineer self's) idea is to have two circuits: one with a small power supply for the reed sensor which triggers a relay, and finally a circuit that has the coil connected to a bigger power supply. The relay would connect/disconnect the power from the coil. This all means that you can have a reliable reed sensor with a much higher voltage going through the motor. I do welcome constructive criticism btw
@GeneralPurposeVehicl
@GeneralPurposeVehicl 8 ай бұрын
A reed switch might be fine if you can control the currents trying to break it.
@tomascapal39
@tomascapal39 10 ай бұрын
u can add gearbox to allow it spin faster
The History of the 3D Printer
19:30
The History of
Рет қаралды 1 М.
This Thing SUCKS: Generating Power With a Lego Vacuum Turbine!
15:04
Jamie's Brick Jams
Рет қаралды 270 М.
Don’t take steroids ! 🙏🙏
00:16
Tibo InShape
Рет қаралды 26 МЛН
Зомби Апокалипсис  часть 1 🤯#shorts
00:29
INNA SERG
Рет қаралды 6 МЛН
Follow @karina-kola please 🙏🥺
00:21
Andrey Grechka
Рет қаралды 11 МЛН
Barely Legal Lego: Making a Powerful Lego Coil Gun
14:28
Jamie's Brick Jams
Рет қаралды 679 М.
Making An Air-Powered Wind Instrument Using LEGO Pneumatics
9:21
Jamie's Brick Jams
Рет қаралды 608 М.
Making An Instant Drink Cooler Using Lego
11:17
Jamie's Brick Jams
Рет қаралды 96 М.
Meccano new motor chassis SM 1
2:48
Mecc ADO
Рет қаралды 12 М.
Destroying 28 Lego Mechanisms
8:35
Brick Technology
Рет қаралды 7 МЛН
Powering My Gadgets With Lego!
8:45
Jamie's Brick Jams
Рет қаралды 281 М.
Making a Powerful Lego Heater Fan: Will It Melt?
11:45
Jamie's Brick Jams
Рет қаралды 248 М.
Lego Pneumatic Dart Gun Destroying Everything
9:48
Jamie's Brick Jams
Рет қаралды 106 М.
Scissor Logic | Lego Technic
12:06
2in1 Bricking
Рет қаралды 201 М.
Lego Egg Timer - Powered By Eggs!
8:41
Jamie's Brick Jams
Рет қаралды 20 М.
What % of charge do you have on phone?🔋
0:11
Diana Belitskay
Рет қаралды 299 М.
M4 iPad Pro Impressions: Well This is Awkward
12:51
Marques Brownlee
Рет қаралды 6 МЛН
Я Создал Новый Айфон!
0:59
FLV
Рет қаралды 3 МЛН
Why spend $10.000 on a flashlight when these are $200🗿
0:12
NIGHTOPERATOR
Рет қаралды 17 МЛН
wyłącznik
0:50
Panele Fotowoltaiczne
Рет қаралды 3,9 МЛН
Готовый миниПК от Intel (но от китайцев)
36:25
Ремонтяш
Рет қаралды 149 М.