Dyson Airblade teardown and repair - AB-14 and AB-02

[@Leonelf0]

The motor is actually a single phase interior magnet pmsm. Allows for high power density. I'm wondering if you could find an asymmetry in the airgap of the motor as it has this nice starting behavior?

[@mikeselectricstuff]

Audio interference.... A few years ago I was at the 100 Club in London, where they had these in the toilets, and you could hear them breaking through into the PA system

[@Wiresgalore]

That is impressive amounts of EMI

[@Wiresgalore]

@Andrew Ballard Iseewhatudidthere

[@simontay4851]

The PA system and the bog should be fed from their own supply. Sounds like the hand dryers were connected to the same ring circuit as the PA system.

[@jhonbus]

Tesla500: Posts expensive high-speed camera teardowns Everyone: Tesla500: Releases industry-changing low-cost high-speed camera Tesla500: Posts expensive hand-dryer teardown Dyson: *Glances nervously*

[@alfoncejean8826]

well he has an experimental model in his bathroom....

[@informativt]

If they just didn't glue it together

[@Goesreallyfast]

I mean, their lack of waste water management leaves a lot to be improved upon, and the nozels get dirty as it's hard for everyone not to touch them.

[@sausagedog52]

@@Goesreallyfast the newer ones that are integrated into the sink tap I think are the way forward, they deal with the water by just draining into the sink plus theres minimal contact and youre already at the sink

[@MrCarlozan96]

Wow, you got pretty fit lately

[@tesla500]

Lots of Crossfit after work! One of the reasons I haven't had much time to make videos recently. Been working on changing that, I have most of another video already shot, Ikarus 2

[@xenonram]

@@tesla500 Continue with improving your health. Don't feel like you need to stop your fitness routine just provide us with content. I love your content, but I'd rather see you healthy.

[@Alexander_Sannikov]

@@tesla500 That's very impressive.

[@dtiydr]

@@tesla500 Much better to prioritize your health than youtube videos, I'm all with you on that.

[@SpaceMountainLarry]

The die cast airblades used to corrode with heavy use. You would see high-traffic locations such as airports and theme parks which would have significant corrosion on the drip pan. For that reason, I am not opposed to the plastic chassis.

[@zaprodk]

Exactly. They look damn ratty and downright disgustingly dirty when they corrode.

[@stonent]

@@zaprodk They could have just decided to retrofit an insert of plastic.

[@kelvinstokes996]

Exactly this. I got two of the first generation ones for free, for no reason other than cosmetics. They were in the lobby of a very nice hotel, and they were replaced due to the corrosion making them ugly.

[@carltoncostley5043]

@@kelvinstokes996 thats like saying to someone your ugly when they are inteligent and kind but just because they have a skin condition they dont get freinds

[@naikrovek]

Dyson Airblades are the worst urinals ever. I used one once and urine went everywhere. Never again.

[@trustthewater]

I thought they were bidets but I couldn't get the logistics right.

[@RobertKrebill]

It’s not a urinal it’s a hand dryer lol

[@astronichols1900]

@@RobertKrebill Wait really? Fooled me

[@RobertKrebill]

Yep

[@coolelectronics1759]

imagine if dyson put out a piano.

[@mikeselectricstuff]

Maybe they use the hall sensor to detect the absolute rotation at rest to it starts reliably

[@Neffers_UK]

I was wondering if the "cogging" strength was deliberate (and not so much as a side effect) so the motor at rest is in a predictable state between poles after powering down? I'm 100% guessing, as I have little to no idea what I'm talking about, unlike yourself. The only foundation I have for my guess is that the motor took a good while to come to rest, it seemed to oscillate quite a fair bit before coming to a complete stand still. Eddy current to position? As I say, not a clue. Sorry for wasting your time if you read this comment.

[@pizzablender]

Well the poles are not at 90 degree angles. The hall sensor knows where the rotor sits and thus the next pole to energize with a "+". Form there on it is either an open loop slow start of a closed loop hall feedback (I suppose open loop).

[@ExperimentarEnCasa]

Hi David! Just wanted to congratulate you for you insane physical transformation!! Very inspiring results. Keep the great work in the nonsense lockdown.

[@bentboybbz]

I was impressed that he had a high speed camera until he grew a second pair of arms to desolder. Then was fekkin amazed when he grew an entire human from the arms to control the arms for him. Well done sir. 👏

[@douro20]

They actually don't depend on sensing to determine motor direction. Instead they use a salient pole to ensure that the field moves in only one direction. All DDMs that I know of are open-loop. There is also active control of the drive waveform at speed, somewhat similar to the SMOOTH technology used in ST's brushless motor drivers.

[@vijayvjn6874]

Always a pleasure to watch your videos, glad to see you still uploading, have a great day

[@WobblycogsUk]

Great to see you again, the one thing you can guarantee in any Dyson is a high price.

[@DoogieLabs]

I love how it is basically a turbocharger impeller wheel, it would be neat to try a larger version of this motor on something like the electric centrifugal (turbo) blower you did a while back. There are finally kits available for cars that do make several PSI boost. (Search cleetus electric supercharger on YT should pull it up). For one of these Dyson motors, at 2.6PSI that would make one hell of a Hovercraft. The RC ones I build can carry 50Lbs easily using fans that have 0.27PSI static pressure on a sheet of foam board. (See my videos)... As long as you are on a smooth surface and have a decent seal you dont need a lot of CFM, you could do a more compact "hoverboard". I was wanting to do a human rideable one, say 20 inches wide by 5 feet long for the base. I'll likely use ducted fans, but in reality I need something like 0.7psi + to have decent performance from the skirt fans. You could literally take a giant cardboard box cut the lid off nice and straight and duct that in and ride it. If you had a gaylord you could shorten perhaps?

[@coolfrost6]

Yeay a Tesla500 video. The clear plastic so deep in the motor/turbine is an interesting choice.

[@SeanBZA]

Must have been a cost thing, using a batch of contaminated transparent mix instead of any other colour, because the plastic batch has a minor colour error from being mixed with other beads. You see a lot of inner plastic parts made with multicoloured recycled plastic, that has been salvaged, extruded into beads and chopped up, and then all the odd bits of colours left over in the batches are run as interior parts where you do not care much about colour,. Or the plant just wanted to change colour on the moulding machine, without stopping, cooling and stripping to clean it, so swap to the die set for the inner, change the bead supply colour, and run a few thousand cycles of parts till all the old stuff has been purged out. Saves a lot of wasted plastic, and makes a saleable product, instead of a 5 hour clean cycle losing money.

[@coolfrost6]

@@SeanBZA seams reasonable. My thought was that the housing might have been of polycarbonate, maybe for shatter resistance. But tbh that's mostly based on the fact that I can't remember seeing opaque polycarbonate. But at you say Dyson tend to make a lot of translucent parts so it would make sense for them to have some translucent wast on hand.

[@SeanBZA]

@@coolfrost6 Polycarbonate is not the most easy to work with, so they would have gone with a cheaper plastic wherever possible, even if it has to be thicker. Polycarbonate for those high strength outer housing parts, then cheaper PVC or other plastic when cost is a driving factor.

[@coolfrost6]

@@SeanBZA I agree that is why it strikes me as od. Correct me if I'm wrong but the only injection moulding plastics I'm familiar is PS, PET, PMMA and PC that would yield that level of translucent. Maybe also some funky versions of ABS. Of those I only think PC and funky clear ABS are reasonable choices.

[@altaroffire56]

@@coolfrost6 Plastic front and back panels in old Hameg oscilloscopes are made of opaque polycarbonate. I remember because I wanted to repair a badly cracked one. I had to weld it with dichloromethane because it's the only suitable solvent for PC, and most adhesives don't do very well either.

[@RobertLBarnard]

Really enjoyable watching, listening to your indepth discovery of Dyson's servo and air pump designs. Great work!

[@DUEL159]

Hi Tesla500, A quick question about the motor bypass. From what I understand you are connecting the white signal wire to the black neutral wire in the cable that powers the control board, and taping off the red live wire. Is this correct? I'm using the motor for a low-cost air knife build and I just want to make sure ere I blow it just before installing it 😅

[@zusurs]

It’s quite funny that they have invested so much engineering effort to minimise the noise of the motor vibration and air compressor, while the airblade nozzles just by themsleves sounds like a f*cking jet turbine while operating... Is it just me, or they could spare a lot of expense in that department?

[@zaprodk]

It's probably a lot louder when you combine the two sources of noise!

[@djmips]

It's good to see you back doing quality videos and I really appreciate you going above and beyond what other KZbinrs generally do with your videos and the high speed highlights are a super bonus that obviously is just second nature for you at this point.

[@TheAwfulInternet]

damn dude looking good lately

[@phil955i]

I found the same with their vacuum cleaners. I had an older Dyson which finally expired after 15 years, I was very pleased with the service I got out of it. Went to replace it & was very disappointed by the construction of the current ones, they felt so flimsy. So I bought a Shark instead.

[@T2D.SteveArcs]

240v with a buck transformer down to 208v could use a standard 240v to 30v, wire the primary and secondary in series out of phase to knock the 30v off ? It would prods be ok on 240 anyway :) nice vid David thanks fella

[@zaprodk]

I guess the potting to hold the components in the first motor is to reduce the chance of the components breaking off with vibration over time?

[@moonsengineeringadventures623]

A 3rd arm does seems really useful, ill have to get that upgrade

[@vincei4252]

Thar's a fabulous looking cat! Trixy is gorgeous.

[@10p6]

Awesome video. I think I prefer the newer design, minus the glue. However I would have used just one PCB for everything and ideally separated it from the motor, or kept it in the motor and made it easier to service like you mentioned.

[@xenonram]

I'd be interested to see the other models too. (airblade wash+dry, airblade 9kJ, airblade V, and what the difference between the original airblade and the "airblade dB" is.) The wash+dry seems very interesting to me. (The air blade dB is for places where noise is a concern and is supposedly quieter.)

[@jmannUSMC]

I can't wait to be in a position to buy one of your cameras one day. I've learned so much from this and other vids.

[@BlahBleeBlahBlah]

Thanks for the interesting teardown, it’s not often we think about these kind of appliances. Also, it’s a special treat to see a vid like this considering how busy you must be with Khronos. BTW I’m really happy that things seem to be going well, wishing you further success in the future :-)

[@fourtwo7612]

Nice to see an old school scope on KZbin for a change 😉

[@FyberOptic]

It wouldn't be Dyson if it weren't over-engineered and as non-repairable as possible.

[@bobafruti]

FyberOptic well it could be made by Apple...

[@ParkRyan123]

Open up the motors to reveal the impellers in another video. Very fascinating! I actually have these rotor/compressor assemblies in a nice box for my viewing pleasure. I am a big fan of Dyson because of their motor designs

[@dos541]

The tip of your desoldering iron is blue how hot does it get (it takes 575 C to turn steel blue)

[@Runoratsu]

"And here we go!"-Hydraulic Press Channel reference?

[@latifkemal4193]

Hello Dyson no longer starts But engine tested is ok. How can I check the sensors? Greetings

[@supersussycat]

11 months ago, it's been a hot minute haha. This video is very good tho, i dont get to see many videos that can keep me for 56min, this one is very interesting even for someone who deal with similar stuff every day. I hope you post more cuz your videos are always very interesting.

[@SeanBZA]

I think in that older unit the filter inductor was originally on the board, using a expensive high permeability core, making it very small, but expensive. Then they went to the larger ferrite core as it would do the same filtering, but at a much lower cost per unit, even with the need for an extra assembly step to hand solder it in and hand tie it to the bracket. Newer one I would guess they put the coil there to get cooling for it, and also reduce envelope by using otherwise unused volume in the motor end housing. Just made it larger, slightly more expensive in copper, but then they could use a very cheap ferrite material for the core, and being larger made it easier to wind as well.

[@imeakdo7]

that motor is like a matryoshka doll

[@Alexander_Sannikov]

What happened to you dude, you've become lean and fit all of a sudden?

[@simontay4851]

He lost weight. Good for him.

[@Alexander_Sannikov]

@@simontay4851 that's a very impressive achievement that takes a lot of effort and dedication to get there in such a short time. I go to gym every day for the last 10 years or so and I know how much willpower it takes to do such high-intensity training.

[@coolelectronics1759]

he made a megatreadmill out of all those treadmill motors hes salvaged over the years, thats it

[@Leonelf0]

You should look up solvents for conformal coatings. The ones I used removed it would leaving a trace and without damaging components

[@coondogtheman]

Imagine a leaf blower with one of these motors. Nice fix.

[@chris746568462]

It wouldn't have enough CFM to be practical. These are more focused on pressure, which is why they look like turbo compressors. My leafblower produces ~400CFM, where an airblade is ~75CFM.

[@RyeOnHam]

These have always looked like over-engineered bacteria farms to me. I wouldn't use them unless I was forced to. Give me a paper towel any day of the week.

[@kirkc9643]

I hate how narrow the slot is. Gotta be careful not to accidentally touch all that bacteria.

[@aserta]

Corona virus, the dispenser.

[@Dust599]

@@aserta Don't spread more bullshit, it does more harm than Corona.

[@volvo09]

@@Dust599 it's a joke.... With a touch of reality. Ever seen one of those air blades? We had one at my old office, The hand slot is soaking wet, and many people (at least in the us) just rinse their hands and then dry them off, or do a quick 6 second rub and dry off.... I don't care if it's corona, seasonal flu, mad diarrhea, Or a cold... I don't want it. that wet hand receptacle grooooooooses me out... I'll wipe my hands on my pants if air dryers are all that's available. I don't want water droplets blown all over me, and the other air drivers blow dust and "stuff" all over the bathroom.

[@xenonram]

Yes, the airblade v, airblade wash+dry, and airblade 9kJ are better designs.

[@didier201]

Hello, I would need your help, on this motor there are 4 wires, 2 large and 2 smaller, the two large ones are permanently supplied with 230V (in France). I guess the two smaller ones should serve as a command. How does this command work? Thank you in advance for your answer

[@Amir_Wanas_Photography]

I got an issue my dyson hand dryer, it works fine but starts by itself sometimes, it started happening once i replaced the casing to a new one and im thinking if there is any particular way the sensors go back on? Is it possible i might have put them in the wrong way or something?

[@Einstein4palistine]

The blower Air out put is hot air..is that because of the compression..or that coil inside the motor??

[@DOGI911]

Need an aggregate like the digital motor from Dyson - do you have any ideas? Should work powerful ?

[@BlackWolf42-]

So... that's not a urinal?

[@charlesrodriguez7984]

XDDD

[@RobertKrebill]

Nice video! Also your kitty is so cute and I love Dyson dryers

[@lsdave]

Always a great day when i find a new Tesla500 video.

[@CarScratchRemover]

another great tear down on the Dyson!

[@shenoyglobal]

do air dryer need vent to outside? needed to know for new construction

[@AKAtheA]

the filter is much finer then needed to just keep debris out of the nozzle...as for the motor - makes sense to use something they already had for a different product. btw that motor is reason Dyson is king when it comes to consumer grade vacuums.

[@shibarmyburnz1978]

Hey mate, what would the process be to replace or repaired an intermittent or sensor

[@ameerahme]

Hello I have one but the bottom container has a part missing which is the bottom of the box. Will it function without this.

[@BlackWolf42-]

That shirt! Any amateur radio operator or electronics design person knows the brutality that can be inflicted by them.

[@tesla500]

I wore that shirt to an actual FCC testing lab when doing emissions testing. No one noticed, or at least no one said anything, haha

[@BlackWolf42-]

​@@tesla500 Hehe. It's their 'company' logo - some of them had to know what it meant after looking at it for more than 3 seconds. You must have presented your device for test knowing that it was likely flawless and by jumping through their hoops and wearing a smile, passed!

[@dtiydr]

26:10 Its for filtering out both high and low frequency noise they use both, very common practice, and it can not be done by one capacitance value.

[@adwelpowel2868]

Which of those 3 signal wires (red, white, black) you short to run the motor?

[@stevenbirch]

BLDC rotors are often made by gluing arc-shaped magnet segments to the inner shaft, then overlaying resin-saturated carbon fibre to retain them.

[@shanethehanddryerfanatic]

EEEEEEEEEEE IM FOAMING AT THE DYSON AIRBLADE AB02!

[@ickipoo]

Another excellent video - thanks. I was dreading the unboxing of the used ones - every airblade I've seen in service has been a grime horror-show - but even the used ones seemed clean!

[@carltoncostley5043]

ive seen only one grimy one in my life it was not that bad anyways

[@nrdesign1991]

I really like those, because they actually _work._

[@kiiiisu]

i like ur wristwatch nice and simple, also finally new video cheers :D

[@jaro6985]

Dude you look great 👍 Dyson stuff is incredibly well engineered, although not perfectly reliable. They seem to sell a lot of refurbished equipment, so someone is repairing it.

[@martzopt7098]

where did you get those screwdriver tips, the long ones?

[@volgrenfanbus1294]

I like the original Dyson because the sound of the motor

[@Einstein4palistine]

How can you make the motor run continuously?

[@the_real_foamidable]

Man! Did you change the lights or something. You look so slim and healthy. Keep it up!

[@lsdave]

What desoldering gun is that?

[@didier201]

Bonjour j'aurais besoin de votre aide, sur ce moteur il y a 4 fils, 2 gros et 2 plus petits, les deux gros sont alimentés en permanence en 230V (en France). Je suppose que les deux plus petits doivent servir de commande. Comment fonctionne cette commande ? Merci par avance de votre réponse

[@electronash]

39:30 Is that a Barco or Bell & Howell CRT projector by any chance?

[@tomgeorge3726]

Hi, great video. However at 34:00 you tried to predict the powerfactor from just the single trace. You need to compare voltage and current to get powerfactor, just the shape of the waveform will not tell you powerfactor. Your scope could have shown you any phase difference between line voltage and current.

[@More_Row]

Long time no see, very pleasant surprise. Thanks for the tear down! Also have you been working out?

[@beamboi2775]

First upload in a while:) plz try to upload more

[@akshaykumarvyas]

I think this could be used to make a high power fast axial flow co2 laser to move the gas very fast through heat exchangers.

[@TheRagingWookie]

Could you do a teardown/repair on a dyson fan heater?

[@wdavem]

Wow, now I hate that thing more but I like it more... weird. Good job also. So the power system 'riding' the sine wave of the AC power to get the rpm's up quick would explain the loud 60 noise they make when spooling up - very interesting!!

[@marshmallowkiller]

The two different sized capacitors is likely to help with the frequency response for filtering.

[@kilrahvp]

The clean start isn't surprising, they didn't put the hall sensor for nothing 🙂

[@GiesbertNijhuis]

excellent video and repair! 👍

[@ShaneGadsby]

What brand is your watch? I absolutely love it! super flat, huge face, so cool!

[@tesla500]

That's made by Swatch. I really like it too, super thin!

[@ShaneGadsby]

@@tesla500 Thanks for letting me know! I know what I'll be getting myself for Christmas!

[@MrTurboturbine]

I have measured waveforms on motor armatures my wrapping a wire around it and measuring the current induced...

[@ArchiezAviation]

Finally a teardown of a Dyson airblade can you teardown a Dyson airblade v?

[@bgdwiepp]

I noticed the tape thing you mentioned, same type of tape too, very likely oem tape

[@gorak9000]

Looks like some of the pads on the bottom of the power transistors lifted off the board and stayed on the transistors... hate when that happens :( Or maybe it's just some leftover solder - you showed the other side of the board later and it looks fine. Still though, that's shitty to glue the components in like that.

[@tesla500]

I noticed that too, but the pad stayed on the board somehow. It looked like it pulled it off though.

[@PSUQDPICHQIEIWC]

It's probably just the remains of the topside fillet. You're fighting on a pretty steep thermal gradient to get enough heat through to the far side of the board. The suction tends to leave them behind when the thermal load is high.

[@capnthepeafarmer]

Great to see you digging into some other curiosity, David! Also, gotta say, you're looking quite svelte these days. Keep it up!

[@zsigmondkara]

I was kindof hoping that you would show the airblade part

[@x9x9x9x9x9]

This is awesome. I have always wondered how those were made. Damn I wish I had your electronics knowledge.

[@iamthetinkerman]

Excellent British engineering as per usual!

[@grassytramtracks]

I think another reason the higher voltage ones are cheaper is simply because far more countries use around 230V than the US 120V, including all of Europe and almost all of Asia, and Dyson's home market, the UK

[@dtiydr]

42:44 Of course the pricing of them is not very different, they make the newer one much cheaper but take of course as much for it anyway to earn more money.

[@account-now-closed]

And they've doubled down on the 9kJ which lasts even less time than the dB

[@dtiydr]

@@account-now-closed Not surprised.

[@rymannphilippe]

Super fantastic video. Thank you so much for the interesting content.

[@pahom2]

31:50 much more serviceable? Still can only desolder it with four hands or with a desoldering tool and the huge components will vibrate and fall off eventually. Also it is not intended to service it, there is no brushes on the motor, just don't plug it to wrong mains supply and it will last forever.

[@mauricepinner5610]

Very informative.

[@heinrichhein2605]

From what i saw the die cast dyson airblade has/had problems with corrosion, just from all the water etc. thats why they changed it

[@txd]

Dude have you been working out :D Great vid as always :D

[@davidperry4013]

I love Dyson air blades

[@pippaengroda]

2,5 psi electric turbo?

[@BlackWolf42-]

Is tesla500 venturing into the dryer market? I could certainly use a dryer that could dry my dog off FAST. If it could be done, I'll buy two!

[@HammondOfTexas0]

That kinda sucks for people that only have one hand if it requires two to turn on.

[@ianwatson3315]

Compressor?

[@tesla500]

Oh, I meant fan. The fan looks like the compressor wheel in a turbocharger so I called it a compressor.

[@sparkyprojects]

First motor looked like an engineers version of pass the parcel :D