I'm taking my kids out of school and only letting them watch this TH-cam channel, as it provides all they need to know to be an adult in a technical field.
That ain't no kiddin' Anyone do good in a class with a boring POS teacher? nope! AvE, your one in a million. Love your stuff even when it gets altitudally over me grey matter...... or is it gray matter? No worries, it doesn't matter how you spell graie. Yusen gooden teachin'. Mock my words. Keep the education and entertainment flowing to the masses.
The low emf does NOT mean it is not a brushless DC motor. The emf is more or less proportional to the RPM and must be compatible with whatever voltage the motor will be supplied with when running. That particular motor is meant to run at tens of thousands of RPM while you are cranking it at probably one or two thousand RPM so I would not expect it to generate more than one volt. If you look at the type of motors used in RC airplanes, drones and such they have a 'KV' rating which specifies the RPM achievable per volt. These can vary from about 500 to 20,000 typically. At KV 20,000 motor may be rated at 80,000 RPM running on a power supply of 4 volts. Such a motor would typically be in a micro drone with a single cell LiIon battery. More typical for a medium sized drone would be a KV=900 motor which would do, say 13,000 RPM at 11 volts. If turn the shaft of such a motor at 1000 RPM with an electric drill it will generate less than 1 volt p-p of EMF. I think what you are seeing is just that.
Forgot to mention - same applies for a stepper motor, the difference is that a stepper motor is designed to work at very low RPM maintaining a high torque. Consequently even turning it slowly will generate a high voltage.
The waveform is Class D mode B (pulses both high and low, thus having a "common mode" component). And I'm sure they are NdFeB magnets... The magnets are unplated, but passivated. Hobby motors use similar magnets with a similar surface treatment. The reason the back EMF voltage was low is because the number of turns on the coil is made low, to keep motor inductance low, to work well with the 30kHz switching waveform. What's so special about the motor is that there are not multiple "phases" as would commonly be the case with a typical brushless DC motor (for example 3 phases). Here there is only a single phase. The motor is started by the torque supplied by the coils, but pulling (initially) against the strong cogging torque.
It's called a 'switched reluctance' motor. They're very cool, but not alien techology. They create a very fast rotating magnetic field within the rotor using the external coils. The rotor contains a special arangement of magnetically 'soft' and 'hard' (typically ferrite and transformer iron) materials that gets dragged around due to magnetic induction. This sets up eddy currents within the rotor which act like magnetic gear teeth. It is this gearing effect that allows the motors to reach such extermely high speeds. The fan is taken from the design of small turbofan jet engines, which been the subject of incredibly rigourous research because of their uses in transportation, energy comversion and war. Also amazing, but well researched.
thank you mate. I just wander if it really runs continuously at 110k rpm? is it power effective? or power hungry. we don't use them in electrical drones?
Alexander Rice Induction of eddy currents in the rotor is negligible and has no effects on the working principle of the motor. Also there is no rotating magnetic field like in AC machines. Nobody who research on SRMs call it like that.
I spend quite a bit of my time in bed watching videos on TH-cam. A buddy of mine showed me your videos a few weeks back and I gotta say... You are definitely one of the most educational and informative creators on TH-cam. You are also one of the most entertaining. Thank you for every video you have posted.
I've heard other folks on here mention AvE, but it took me months to finally watch an AvE video. I've been missing out! Might have to adopt Neodydlium!
Great and informative , people need to chill out and let the man be and express him self in any way he feels he wants to , people focusing on his accent changes and giving advice on how they want to hear it, that's not good , if you kill people's natural creativity you kill part of them , reversing what you actual want to achieve , open mindedness is the only way new information can be passed and received . Let it be . Keep up the good work .
cyclone dust collection works great. look into cyclone dust collection for wood working shops, collection bins fill up but filters stay clean MUCH longer than a simple suction/filtration system. You can even add cyclone collection to existing filtration systems for woodworking. Works amazing for router and tablesaw work.
Wait till you hear the vulgarity of an organ builder lol "Hello my names Jon and I erect organs for a living" is a great opening gambit in meeting a girl !!
100w in that size isn't too surprising considering how much air they've got going through it. I wonder if the failure to chooch in the vice might be because it's seeing the revs rise too quickly due to lack of air resistance from the housing.
Anony Mous RFMTs (random fucking magical tricks) is what I have used to explain networking to my family for years. I start explaining until deers in the headlights then say, "and 30 RFMTs later..."
I just learned something for free and had a great fucking time doing it ... I love this guys lingo . It's not quite english but I get it .. love it! Subbed
frollard That is a perfect explanation. The generated back emf is proportional to the rate at which the magnetic flux changes in the loop times the number of loops (turns) of wire. So if your coil generated moderate -voltage at low RPM, you would need a ridiculously high voltage to drive-in at high rpm
the stepper motor has a very high wind count, and usually only run on 12 or 24V, high rpm require very low turn counts for more power. its the same in rc motors.
I paid fk all in a big ship to watch your videos but gain from all of them. Your appraisal is accurate. Although I appreciate the earliest ones containing less ego, I continue to enjoy and learn so please don’t stop sharing. Thank you!
Reluctance motors are composed purly of soft magnetic materials resulting in no cogging when the excitation windings are unpowered. For very high speed brushless motors you need both a high excitation voltage and a low stator inductance. This low inductance can be achieved by a low winding number. This will explain the small induced voltage when you turn it at low speed.
no idea what reluctance motors are and such. Do know in radio control inrunner motors there are 2 types of stators. Slotless and slotted. Slotted uses some kind of ferrous material (usually sintered and laminated) in the windings which creates the cogging when turning by hand. Slottless doesn't have any ferrous material in the stator and spins smoothly by hand. For rc applications the smaller higher kv motors intended for higher rpm generally have slotless stators while larger higher torque motors generally have slotted stators. After typing this I reread your comment and better understand it. Now realizing I'm basically explaining the first part of your comment but still feel its relevant and not wanting to delte
Holy crap, that's so crazy tech right there. The machining on the fan alone is amazeballs. But, I cant get over the PWM frequency. How some P and N material can turn ON and OFF 30,000 a sec so accurately, is just beyond my comprehension. I work with old servos and CNC stuff alot, but this really blew me away.
My friends racing RC car has a sensorless brushless motor running at 16.8Vand pulls 100A continuous or 210A burst current, it runs at like 55K RPM and makes like 4 HP and its about the size of a D-Battery too.
Back when motors where Brushed a 36mm can (540) is what you would find in a 14volt DeWalt drill and a 40mm can like a Castle 2200kv (775) is what you would find in a 18volt DeWalt drill. With these new Brushless motors I don't know if there is a standard can size for power tools.
I've learned more watching you this last few months than I did in an entire year in JobCorps studying electronic assembly back in 85' Simple disciption of materials and process of disassembly spoken with humor and self-deprication.👍
@@Diesel8290 What have you achieved in your life? Still living in your mom's basement that are too scare to walk on street because of people staring at you?
I didn't understand a single technical word that you said but listened spellbound all the same. In actual fact I like to break down all kinds of things like old burner units, PC's, printers, old garage engine tasting equipment, sound & graphics cards etc to remove all the old copper but mainly to collect and keep the motherboards, leaving the copper & gold in place. I fixed them on my wall to make a big piece of artwork. I then ran out of wall space so I took it all down and will be fixing them to separate sheets of multi-ply for more transportable art. In the process of dismantling I get a better idea of how things work and watching your film helps to further my understanding a bit plus learn new great words like 'neodidlium'. So thanks for that.
Did dyson take the same thing as their "silent" room fans and use it in this hair dryer? Would be really cool if you could emulate that 30khtz wave and get the motor screaming again.
Saw (& heard) one of the early desk fans in use - to me it sounded like more of a resonance thing, more like spooling up a jet engine rather than the whistle of a motor controller.
Actually, the low voltage is due to the motor being designed to run at high rpm. It's engineered to hit 110k rpm at its operative voltage, therefore you'd have to reach that rpm to get the voltage out of it. Your drill simply doesn't have the rpm output to get the voltage up. Also the voltage measurement could be off by measuring across two phases only give 66.7% of the voltage. Your stepper motor is engineered to operate at very low speeds, which is why you can get voltage from it by spinning it with your hand.
Bouta go verify that,but not suprised if homie didn't glance at the engineering documentation (he only reads when he's on toilet) I wanna believe all the eng resources at Dyson they'd have something very unique. A 110Krpm motor like this is super cool! Thanks for the detail.
Because Wikipedia is unreliable at it's core. Granted, in many areas the "control of the masses" is sufficient to moderate and weed out malicious edits. But in many cases it's not. As it's an open platform, and anyone can edit it, no information is guaranteed to be correct or even relevant, even if it looks like it has decent references. But yes, it can often be a good starting point, and to double check stuff that "you know", i.e. know well enough to know if the information is clearly falsified.
I still think that once the smoke escapes the unit is kaput. This was so enjoyable, brushed motors, brushless motors, reluctant motors all combined with alien technology. Just an amazing video. Thank You
Research motor Kv rating. The motor put out squat for voltage because it's designed to spin many thousand of rippems for each volt applied, so spun as a generator, you need to spin it many thousand rippems to get 1 volt out.
I always learn something technical from your videos. I can tell you are a well educated and well seasoned Engineer. I bet you are an instructor too. Thanks for doing what you do.
the newest dyson motor patent 20170170697 states: ' The magnet ( ex: that is mounted on the rotor ) is a bonded permanent magnet of the sort typically used in permanent magnet brushless motors, and in the example shown the magnet is a four-pole permanent magnet.' Reading the patent it strikes that the main focus is in creating components that are in essential aspects optimized to lower friction, weight, increase airflow. The c-core stator is a unique work of art and the true heart of this optimized motor.
You are wrong! This is a brushless DC with a neodymium magnet core! Speed is monitored by a Hall sensor and controlled by a 8-bit microcontroller switching with a h bridge of mosfets.
High speed requires a weak magnet, not a strong one. Also, neodymium is not rugged enough. Protective chrome coatings and quality control would be way too much hassle.
Nicholas R.M. Technically speaking, the hall sensors are used for position, not speed. That is how the commutation is done in a sensored brushless DC motor. If that is the case, it would not function properly when the motor is separated from the all sensors and the hall senses are often on the PCBoard. AvR thanks that this is a sensor less brushless DC motor in which case there are no hall sensors and no optical sensors at set up for position sensing. The position sensing must be inferred by current or back EMF in the coils.
There are plenty of brushless motors for RC planes and especially multicopters that have very low back emf constants, like 300-500 rpm/volt. So unless your drill can do 1000+ rpm it's not that surprising to see only 1-2v out. It's also not uncommon to see small motors like that (150-200 grams) rated for 300+ watts (maybe optimistic, but they too have exposed windings with a lot of surface area and air moving directly across them) That said, I don't see anything on the board that makes it obvious what kind of motor or drive topology they're using. Especially confusing to see only two power transistors and two wires going out to the motor. Is the blue box a film cap? How is it connected - in parallel with the electrolytics or something else? Does the motor have any cap out there with it (like a single phase AC motor)?
seems like you never saw water pump on washing machine. Basically same design just dyson wanted higher speeds so instead using 50 (or 60)Hz from net they added their own controller to adjust frequency and by that adjust speed..
I think the jargon gets thicker with every video. He's just BARELY speaking speaking English by now. Another five videos or so, and "AvEnish" will be an entirely separate language.
Nice math at the end of the video. Enjoy your video not just for the edumacation. But for the funny bits too. Learning can expensive if you do it right, like at university.
Great video! If I had someone like you as a professor in the good ol' collag-io, I probably would have stuck with it longer. Thanks for the educational videos! The "digital" part of the motor comes from how the power is controlled through electrical switching circuits and digital logic circuits.
No need to shout;) but you’re right. This is a brushless DC motor designer at high speeds (rpm) at low voltages. The stepper is designed to have high torque at low voltages so it won’t ‘loose’ (skip) steps.
such a delightful combination of profanity and knowledge
yes, exactly!
JFM, baby!
Yeah, one of the better sexplanation vijeos furthering edjaculation... :)
I'm taking my kids out of school and only letting them watch this TH-cam channel, as it provides all they need to know to be an adult in a technical field.
Dr Tune love this guy the dooblydo
I wouldn't have dropped out of my electronic engineering degree if I had you as a lecturer/ lab lead
Yep, just imagine a school where AvE, Colin Furze and Old Tony where teaching..To name a few..
@@MortifiedU with electroboom as health & safety teacher
That ain't no kiddin'
Anyone do good in a class with a boring POS teacher? nope!
AvE, your one in a million. Love your stuff even when it gets altitudally over me grey matter...... or is it gray matter?
No worries, it doesn't matter how you spell graie.
Yusen gooden teachin'.
Mock my words.
Keep the education and entertainment flowing to the masses.
At the same time I'd have had to chew solder like gum to put up with the derpy
The low emf does NOT mean it is not a brushless DC motor. The emf is more or less proportional to the RPM and must be compatible with whatever voltage the motor will be supplied with when running. That particular motor is meant to run at tens of thousands of RPM while you are cranking it at probably one or two thousand RPM so I would not expect it to generate more than one volt.
If you look at the type of motors used in RC airplanes, drones and such they have a 'KV' rating which specifies the RPM achievable per volt. These can vary from about 500 to 20,000 typically. At KV 20,000 motor may be rated at 80,000 RPM running on a power supply of 4 volts. Such a motor would typically be in a micro drone with a single cell LiIon battery.
More typical for a medium sized drone would be a KV=900 motor which would do, say 13,000 RPM at 11 volts. If turn the shaft of such a motor at 1000 RPM with an electric drill it will generate less than 1 volt p-p of EMF.
I think what you are seeing is just that.
Forgot to mention - same applies for a stepper motor, the difference is that a stepper motor is designed to work at very low RPM maintaining a high torque. Consequently even turning it slowly will generate a high voltage.
Lister Dave. Forgot to mention fack off!
a tribute to Yeah, Sure
Lister Dave is spot on though.
Lister Dave Exactly! 👍
It's cold outside
There's no kind of atmosphere
I'm all alone, more or less
Let me fly far away from here
Fun, Fun, Fun, in the Sun, Sun, Sun
Urban dictionary would benefit greatly from you.
Thus the entire human race would congruently benefit at an exponential rate based on your projection of linguistic fuckery.
Agreed
Keep them in business for the next 30 years
Robert Emerson theres a very fine line
There's an AvE bumblefuck dictionary somewhere on the interwebs.
Man that's most poetic swearing that I have heard. And I know lots of Russian welders. )))
scottish shipyard welders are the best place to learn cursing
In canada we have the trailer park boys
The waveform is Class D mode B (pulses both high and low, thus having a "common mode" component). And I'm sure they are NdFeB magnets... The magnets are unplated, but passivated. Hobby motors use similar magnets with a similar surface treatment. The reason the back EMF voltage was low is because the number of turns on the coil is made low, to keep motor inductance low, to work well with the 30kHz switching waveform. What's so special about the motor is that there are not multiple "phases" as would commonly be the case with a typical brushless DC motor (for example 3 phases). Here there is only a single phase. The motor is started by the torque supplied by the coils, but pulling (initially) against the strong cogging torque.
Lol pangolin over here, this is not even in your bussiness direction :')
I was going to say it was a class D amp. I've read about this but never seen the actual wave forms. 100% awesome!
Hello Mr.Spock, how are things on Vulcan?
What ensures it starts in the proper direction?
blargg,
DC motor... I would think polarity.
Neodiddlium! osmelloscope! while this is chooching! These words and expressions are in my vocabulary now!
Yeah>>>! "Neodiddlium!!" HAHAHa
cyberlord64
cyberlord64 here here to the newnie tech slang :)
He carries it a little to far imo. Dialed back just a smidge would be good.
Yes, but are the snorkeling orphan endorphins in the proper proportions to the porpoise's orifices?
It's called a 'switched reluctance' motor. They're very cool, but not alien techology. They create a very fast rotating magnetic field within the rotor using the external coils. The rotor contains a special arangement of magnetically 'soft' and 'hard' (typically ferrite and transformer iron) materials that gets dragged around due to magnetic induction. This sets up eddy currents within the rotor which act like magnetic gear teeth. It is this gearing effect that allows the motors to reach such extermely high speeds.
The fan is taken from the design of small turbofan jet engines, which been the subject of incredibly rigourous research because of their uses in transportation, energy comversion and war. Also amazing, but well researched.
thank you mate. I just wander if it really runs continuously at 110k rpm? is it power effective? or power hungry. we don't use them in electrical drones?
Alexander Rice Induction of eddy currents in the rotor is negligible and has no effects on the working principle of the motor. Also there is no rotating magnetic field like in AC machines. Nobody who research on SRMs call it like that.
For a coil gun, you want a fast projectile, which suggests not only that is reluctance required, but also people have been doing it wrong.
definitely alien ... from planet ork
But SRM should have teeth on rotor as well. But that does not seem so from the video, its just a smooth cylindrical rotor.
I spend quite a bit of my time in bed watching videos on TH-cam. A buddy of mine showed me your videos a few weeks back and I gotta say... You are definitely one of the most educational and informative creators on TH-cam. You are also one of the most entertaining. Thank you for every video you have posted.
I've heard other folks on here mention AvE, but it took me months to finally watch an AvE video. I've been missing out! Might have to adopt Neodydlium!
Great and informative , people need to chill out and let the man be and express him self in any way he feels he wants to , people focusing on his accent changes and giving advice on how they want to hear it, that's not good , if you kill people's natural creativity you kill part of them , reversing what you actual want to achieve , open mindedness is the only way new information can be passed and received . Let it be . Keep up the good work .
You are fine, just... fine!
electroBOOM you're awesome, love your channel!
Hey Mehdi! I love you :DD
You're the electroboom guy!
Gimme dat scope
...
FULL BRIDGE RECTIFIRE
Dyson Vacuum next, I want you to investigate their bullshit with their suction technology
JACK SPARROW magic
JACK SPARROW yessss!
my dyson works pretty well but the materials are pretty junky, really wobbly plastic
My Dyson vacuum is 5 years old sucking up dog hair and it still works just as good as when I bought it
cyclone dust collection works great. look into cyclone dust collection for wood working shops, collection bins fill up but filters stay clean MUCH longer than a simple suction/filtration system. You can even add cyclone collection to existing filtration systems for woodworking. Works amazing for router and tablesaw work.
13:11. highlight of the video my guy
Perfect cross between an Engineer with the vulgarity, of a sailor...
Wait till you hear the vulgarity of an organ builder lol "Hello my names Jon and I erect organs for a living" is a great opening gambit in meeting a girl !!
n e o d i d d l y m a g n e t
b r u s h l e s s d c
Gady U N I C O R N P O O P
n e o d e a d l y u m m a g n e t s m a t e
c h o o c h . . .
i t v o r k s
100w in that size isn't too surprising considering how much air they've got going through it.
I wonder if the failure to chooch in the vice might be because it's seeing the revs rise too quickly due to lack of air resistance from the housing.
i agree. the little electric brushless motor in my RC car is 1.6kW and that thing fits in the palm of your hand. i thought it would have more power.
1.6kw, wow that's one hell of a motor to fit in the palm of your hand. Strong forced air cooling?
Kalvinjj nope. just gets cooled down by air flowing past it. The car goes 120kph so there is plenty of airflow.
It's about 100W motor you plank! The other 1500 W is power consumption of the heating element.
You don't seem to be so good at reading... we ARE talking about the 100w only on the motor, and the 1.6 kW one is another story
Love your jargon man. Neodiddlium is the type of magnet Ned Flanders uses.
"there is probably a hundred thousand people that watched this video..." 1.2M and still counting :D
1.8m
Almost 2 mil now . So now we know how he can buy $500 hair-dryers, and do little kid stuff with them.
JFM is now how I will describe anything I don't understand.
absolutely
Anony Mous RFMTs (random fucking magical tricks) is what I have used to explain networking to my family for years. I start explaining until deers in the headlights then say, "and 30 RFMTs later..."
When you get the deer in headlights just tell them they have an ID 10 T issue
old man ave throwin up some dank memes
awesley92 I AM DANK
thanks for paying+providing my education, dad
Dad? But he told us he's our weird Uncle!
Could be both, who knows?
Mum?!
Bruncle?
Fjolfrin the Silk Beard Mooooooooooom ,, dad fucked of your new hairdryer.. L.o.L..
I've learn't pretty much everything I know from you, sir. Thanks for letting me hang out with ya and have a few beers and laughs.
I just learned something for free and had a great fucking time doing it ... I love this guys lingo . It's not quite english but I get it .. love it! Subbed
It's not Yank either.
I'd love to hear an episode in nothing but AveSpanish (a treat especial!), AveGerman and AveCanuckFroggyLingo.
in this vid he uses more German then in the vid with, the 5 inch Metabo "Winkelschleifer" ;)
i was gonna suggest AveAussie also but i think he's already bastardized English quite nicely haha
Basterdized Lol
The 1 volt out is probably because it's designed to spin at 100krpm and you're giving it 300...
frollard That is a perfect explanation. The generated back emf is proportional to the rate at which the magnetic flux changes in the loop times the number of loops (turns) of wire.
So if your coil generated moderate -voltage at low RPM, you would need a ridiculously high voltage to drive-in at high rpm
the stepper motor has a very high wind count, and usually only run on 12 or 24V, high rpm require very low turn counts for more power. its the same in rc motors.
well i mean. SRSLY HOW IS HE GONNA DO THAT XDDDDDD
Yeah.. european.. like their cars that run at a million RPM and sound like dremel drills. And they don't have any neodidleyum either ;-)
funny guy! buy a european v8. low rpm!
Easiest subscription on UTub I've ever clicked.
...was like listenin' to your buddy talk.
cheers.
same, not even 6 minutes into the vid and i decided i wanted to sub XD
wreckcelsior same here!!
same
I paid fk all in a big ship to watch your videos but gain from all of them. Your appraisal is accurate. Although I appreciate the earliest ones containing less ego, I continue to enjoy and learn so please don’t stop sharing. Thank you!
I only understand about a 1/3 of what you are talking about , but really enjoy trying to learn a new language from such a great teacher
Reluctance motors are composed purly of soft magnetic materials resulting in no cogging when the excitation windings are unpowered. For very high speed brushless motors you need both a high excitation voltage and a low stator inductance. This low inductance can be achieved by a low winding number. This will explain the small induced voltage when you turn it at low speed.
+Capo Agreed. From a quick bit of Googling it does indeed seem to be a permanent magnet motor as expected.
no idea what reluctance motors are and such. Do know in radio control inrunner motors there are 2 types of stators. Slotless and slotted. Slotted uses some kind of ferrous material (usually sintered and laminated) in the windings which creates the cogging when turning by hand. Slottless doesn't have any ferrous material in the stator and spins smoothly by hand. For rc applications the smaller higher kv motors intended for higher rpm generally have slotless stators while larger higher torque motors generally have slotted stators.
After typing this I reread your comment and better understand it. Now realizing I'm basically explaining the first part of your comment but still feel its relevant and not wanting to delte
God, I love this guy!
How hes a pickle smoocher
Barnacules Nerdgasm
How weird I follow you on FB
Barnacules Nerdgasm i love u.
Focus you fack! Haha! I love it!
YOUR electronic wizardry is only surpassed by your profane eloquence... You have me sir, I yield... Count me subscribed!
13:08 this is truly one of the most incredible videos on TH-cam.
Holy crap, that's so crazy tech right there. The machining on the fan alone is amazeballs. But, I cant get over the PWM frequency. How some P and N material can turn ON and OFF 30,000 a sec so accurately, is just beyond my comprehension. I work with old servos and CNC stuff alot, but this really blew me away.
The way that motor is designed reminds me of the sensored brushless motor in my RC truck. Runs at 12.6V pulling 20A. Size of a D-Cell. It's mental.
most 3.5t 540 sized brushless motors are rated at a bit under 700w!
Yeah I havea Trackstar 13.5T 540 3150kv that is quite powerful. Designed for 2S but it runs 3S no problem.
My friends racing RC car has a sensorless brushless motor running at 16.8Vand pulls 100A continuous or 210A burst current, it runs at like 55K RPM and makes like 4 HP and its about the size of a D-Battery too.
Back when motors where Brushed a 36mm can (540) is what you would find in a 14volt DeWalt drill and a 40mm can like a Castle 2200kv (775) is what you would find in a 18volt DeWalt drill. With these new Brushless motors I don't know if there is a standard can size for power tools.
That sounds about right. The most I've seen on a Castle log from a 40x96mm brushless motor was 14hp running 8s
Believe me when I say I've never seen anything of yours nor do I know how this got on my homepage. But I like it.
Probably the best informative and entertaining technobabble I've randomly watched.
I've learned more watching you this last few months than I did in an entire year in JobCorps studying electronic assembly back in 85'
Simple disciption of materials and process of disassembly spoken with humor and self-deprication.👍
Nothing alien just clever British engineering.
Technically all tech is ET tech but when it is British it is more of the parasite kind....
@saladdogger It means someone has a problem with british achievement.😖
As a current Land Rover Discovery owner, I must contest your "British engineering" comment lol
British engineering was good 80 years ago when they made really good vices but now it’s poo 💩
@@Diesel8290 What have you achieved in your life? Still living in your mom's basement that are too scare to walk on street because of people staring at you?
I laughed; I learned. This is what youtube is for.
A V2 rocket joke? This is the joke for me, this is why I'm here.
LMAO! Brilliant guy. My first exposure. Needs his own Cable show!
Loving the combination of invented words, technical knowledge and just general give-no-fuckery it's a refreshing change keep up the good work sir!
I didn't understand a single technical word that you said but listened spellbound all the same. In actual fact I like to break down all kinds of things like old burner units, PC's, printers, old garage engine tasting equipment, sound & graphics cards etc to remove all the old copper but mainly to collect and keep the motherboards, leaving the copper & gold in place.
I fixed them on my wall to make a big piece of artwork. I then ran out of wall space so I took it all down and will be fixing them to separate sheets of multi-ply for more transportable art. In the process of dismantling I get a better idea of how things work and watching your film helps to further my understanding a bit plus learn new great words like 'neodidlium'.
So thanks for that.
Did dyson take the same thing as their "silent" room fans and use it in this hair dryer? Would be really cool if you could emulate that 30khtz wave and get the motor screaming again.
Saw (& heard) one of the early desk fans in use - to me it sounded like more of a resonance thing, more like spooling up a jet engine rather than the whistle of a motor controller.
Elegant profanity and I was entertained! Nice one!!
hey AvE hook that to one of your power rectifiers and crank it up till it lets out the blue smoke
I understand 1/3-1/4 of the subject you're discussing, yet still find myself watching videos and laughing. Bravo.
Actually, the low voltage is due to the motor being designed to run at high rpm. It's engineered to hit 110k rpm at its operative voltage, therefore you'd have to reach that rpm to get the voltage out of it. Your drill simply doesn't have the rpm output to get the voltage up. Also the voltage measurement could be off by measuring across two phases only give 66.7% of the voltage. Your stepper motor is engineered to operate at very low speeds, which is why you can get voltage from it by spinning it with your hand.
Bouta go verify that,but not suprised if homie didn't glance at the engineering documentation (he only reads when he's on toilet)
I wanna believe all the eng resources at Dyson they'd have something very unique. A 110Krpm motor like this is super cool!
Thanks for the detail.
neodidlyium
bruenor82 as Ned Flanders would say it! neo.diddly. ium!
Jason Axford DAMN YOU FLANDERS!!!!
I said this in the last video...
Dude... I laughed so hard when he said that... I continue to listen... I love his sarcastic nonsensical humor!!!!
*N E O D I D D L Y U M*
13:11 subscribed forever.
Love your videos
"Sorry, fascism on the brain"
Fascism will do that for you, you catch fascism and you become a troglodyte.
That made me piss my pants
Gotta say, as a new green maintenance worker, I love your lingo. You talk like my elder maintenance coworkers.
As a magnet specialist, I can confirm the magnet on the rotor is a neodymium multipole ring magnet.
Thanks for the free edumakation! :D
LOL, "Focus you FUCK!".
you should make a t shirt that says "it's all just 1s & 0s" and have a smoking power tool in the background.
What you talking about Willis?
I literally understand none of this, yet it is very interesting to sit here and learn from your videos. Very informative yet it won't put me to sleep.
I don't care what this video is about, I just kept watching it to listen to this guy talk..... very entertaining.
IT'S ALL RIGHT THERE SHEEPLE! WAKE UP!
LOL great laugh this morning.
Your German is incredible!
Every time. I learn something new, and I get a good laugh. Thanks man.
You have my subscription because I think people who explain serious subjects with profanities using various accents cannot tell a lie.
Quite possibly the most clever free flowing monolog master on TH-cam.
is there an AvE drinking game? Its got what drunk nerds crave.
apcolleen Brawndo!
apcolleen Every time he says "Fack" or "doodly-doo"...
apcolleen check for his "drinko" vidjayo.
'Reluctance motor' sounds like one of your made-up terms!
en.wikipedia.org/wiki/Reluctance_motor
Wikipedia on the other hand, is made-up knowledge =)
Technically, all knowledge is made-up
No, actual knowledge is based on observation, experimentation and repeatability.
Because Wikipedia is unreliable at it's core. Granted, in many areas the "control of the masses" is sufficient to moderate and weed out malicious edits. But in many cases it's not. As it's an open platform, and anyone can edit it, no information is guaranteed to be correct or even relevant, even if it looks like it has decent references.
But yes, it can often be a good starting point, and to double check stuff that "you know", i.e. know well enough to know if the information is clearly falsified.
Hold the subject closer to the board to keep it in focus...... Y. F!
This guy just packed so many epic phrases and expressions into 14 minutes of video, I would listen to him talk instead of music. +1 subscribe from me.
I still think that once the smoke escapes the unit is kaput. This was so enjoyable, brushed motors, brushless motors, reluctant motors all combined with alien technology. Just an amazing video. Thank You
AvE has been identified. neodiddlyum. AvE is ned flanders.
Hey AvE love the combo of brains and bullshit, just not sure of the ratio.
john browne twas tough to determine with this one
LOL Comedy and tech... love it. SUBSCRIBED
Mark Jennings first time watching? Enjoy binge watching all his videos, seriously, I've learned so much, and laughed so much from his videos
Research motor Kv rating. The motor put out squat for voltage because it's designed to spin many thousand of rippems for each volt applied, so spun as a generator, you need to spin it many thousand rippems to get 1 volt out.
I always learn something technical from your videos. I can tell you are a well educated and well seasoned Engineer. I bet you are an instructor too. Thanks for doing what you do.
2:05 "Bumblefuckery" = Sub
now use it to inflate a miniature wacky waiving inflatable arm tube man
the newest dyson motor patent 20170170697 states: ' The magnet ( ex: that is mounted on the rotor ) is a bonded permanent magnet of the sort typically used in permanent magnet brushless motors, and in the example shown the magnet is a four-pole permanent magnet.'
Reading the patent it strikes that the main focus is in creating components that are in essential aspects optimized to lower friction, weight, increase airflow. The c-core stator is a unique work of art and the true heart of this optimized motor.
I just love it when Negan talks science.
I have absolutely no idea what you said but I sure as hell love the way you said it!
You are wrong! This is a brushless DC with a neodymium magnet core! Speed is monitored by a Hall sensor and controlled by a 8-bit microcontroller switching with a h bridge of mosfets.
can you back this up, he took it apart lol
Did you even watch the video? That's not neodymium.
Seems lika a weak neadymium then.....
High speed requires a weak magnet, not a strong one. Also, neodymium is not rugged enough. Protective chrome coatings and quality control would be way too much hassle.
Nicholas R.M. Technically speaking, the hall sensors are used for position, not speed. That is how the commutation is done in a sensored brushless DC motor. If that is the case, it would not function properly when the motor is separated from the all sensors and the hall senses are often on the PCBoard.
AvR thanks that this is a sensor less brushless DC motor in which case there are no hall sensors and no optical sensors at set up for position sensing. The position sensing must be inferred by current or back EMF in the coils.
There are plenty of brushless motors for RC planes and especially multicopters that have very low back emf constants, like 300-500 rpm/volt. So unless your drill can do 1000+ rpm it's not that surprising to see only 1-2v out. It's also not uncommon to see small motors like that (150-200 grams) rated for 300+ watts (maybe optimistic, but they too have exposed windings with a lot of surface area and air moving directly across them)
That said, I don't see anything on the board that makes it obvious what kind of motor or drive topology they're using. Especially confusing to see only two power transistors and two wires going out to the motor. Is the blue box a film cap? How is it connected - in parallel with the electrolytics or something else? Does the motor have any cap out there with it (like a single phase AC motor)?
360 degrees is 2π right ?
Cédric Coulombe yup
Cédric Coulombe yes!
He meant tau. :)
400gon
Yes it is. And Frank, 2π Radians is 6.28 (2.dp) which you've rounded up to 6.3c. That's the same as 2π.
Completely enamored with your highly-classified terminologies!
seems like you never saw water pump on washing machine. Basically same design just dyson wanted higher speeds so instead using 50 (or 60)Hz from net they added their own controller to adjust frequency and by that adjust speed..
I figure all that air blowing on those long funny windings has something to do with being able to handle 100 watts.
I think the jargon gets thicker with every video. He's just BARELY speaking speaking English by now. Another five videos or so, and "AvEnish" will be an entirely separate language.
what happens when you plant the dyson in the ground when you're done
It dies, son!
I just found this channel 2 weeks ago.... I can't stop watching the videos lol
Thanks again, most is way over my head, but its edjamactional and fun to watch someone who knows what they are doing.
I'm in an electricity class in college and I actualy know what your talking about lol
Ironcladkilljoy I know what negative and positive is and if you touch both your fucked
•______________________•
Ironcladkilljoy hahah I am not and I still understood everything, ez peasy
HERPY DERPEDY it's jfm man, jfm....
I finished high school specialized in mechanics and i know what he's talking about, you don't need to be an expert of electronics for those things lol
I'm in a low class college with no electricity and I understand what *you're* talking about.
Not to mention 500 dollars spread across 100,000 people who almost definitely never buy this hair dryer, or take it apart..
We should all give him the half a cent each he needs to buy another $500 take-apart-toy/dissection subject.
or if a tenth of a percent just became patreons...
Nice math at the end of the video. Enjoy your video not just for the edumacation. But for the funny bits too. Learning can expensive if you do it right, like at university.
This guy is excellent. I want him to narrate all technical videos.
This channel is pure therapy.
The pulsification of your bridge rectumificator is intensely preportional to the pulsification of the p.l.c. ac to dc.lol🤣🤣
Tappy tap tap tap Tappy ... Happy Gilmore lol
New favorite word... Bumblefuckery.
I've always wanted to know what did the sucking and the blowing in the Dyson Hairblade, so thank you for tearing this one apart!
Great video! If I had someone like you as a professor in the good ol' collag-io, I probably would have stuck with it longer. Thanks for the educational videos! The "digital" part of the motor comes from how the power is controlled through electrical switching circuits and digital logic circuits.
WOULDN'T THE ABSENCE OF BRUSHES PROVE IT'S A BRUSHLESS MOTOR
No need to shout;) but you’re right. This is a brushless DC motor designer at high speeds (rpm) at low voltages.
The stepper is designed to have high torque at low voltages so it won’t ‘loose’ (skip) steps.
What's the saying... Less is more? So I guess the absence of brushes is technically the most brushes one could have.