Wet rotor synchronous dishwasher motor

An interesting design of dishwasher pump motor, re-purposing it to be a blower motor for a small dust collector.
woodgears.ca/motors/wet_rotor.html
This design of motor, though not very flexible, is surprisingly efficient.
Based on the comments, wet rotor motors are often used in aquarium pumps, heating circulation pumps and fountain pumps
Blower housing experiments:
• Blower housing shape e...
Dust collector blower:
• Building a dust collec...

[@charleswatts1864]

I used a rpm meter years ago. When I used it indoors, it was inaccurate. When used outside in the sun, it was accurate. It was actually picking up the 60hz of the light indoors. Check yours and see if you find similar results indoor vs outdoor. A strobe-o-scope might be a better option.

[@dozer1642]

Oh my gosh that little thing rummaging around the shop is so adorable. I used to see one of those around my ankles too. Mine turned into a teenager five years ago. She is still my little angel but I do miss those days.

[@dozer1642]

PunchingMegaTree, I’ll have a beer with my precious little girl every once in a while now that she’s of drinking age and it’s weird for me because I still think of her as my little girl, she is the most amazing person I’ve ever known and I’m so proud of her. I hope I get to watch a little grandbaby rooting around the floor of a shop one of these years. The most amazing thing in the world is raising children. Nothing else in the world comes close.

[@Krommandant]

The tracing you did with the washer is very clever. I learn every time I watch your videos. Thanks Matthias.

[@BLBUndead]

The wood shop teacher we all wanted and should of had in high school.

[@waterboy8999]

Maybe could have taught you English too, just saying.

[@originalmianos]

This wet rotor is very common in submersible pumps for aquariums. Pretty much 100% of them.

[@AverageJoe2020]

And central heating circulating pumps,

[@brothyr]

a quick google search shows a good amount of information on 'wet rotors'. Not exactly technical specs or anything but enough to get a basic understanding.

[@Ronke01]

and submersible pond pumps, equipped with ceramic bearings most of the time.

[@Helveteshit]

I assume filling it with water and plugging the holes, will lead to overheating due lack of change of water flow? So if one were to run it in optimal condition. one might need some way to change the water out consistently. Then again, the magnetic rotor and similar can be used to create DC with water streams or similar. Albeit not very good at getting started, the magnet will provide resistance which should increase the production output. Hence you use DC breaks on Windmills to get them running at optimal RPM to produce more Watt per rotation. If my Knowledge on Generators isn't a tad outdated. Most of my knowledge is about installing it and finding out the faults in them. Not making them into generators. But I do recall a Rotor with a magnet tends to be easier to turn into a Generator than one, that isn't.

[@ElectraFlarefire]

Pond pumps, pet bowl pumps, many, many places. It's a great design. Wet stainless steel and glass fiber filled nylon bushings that form the case(In a pond, lubricated too by pond scum/algae:). Coil of wire potted in resin in the case. And they pretty much work forever so long as you clean them every so often.

[@christophercook8]

It's really cool to see your kid hanging out in the shop.

[@Chrishm0]

Aren't perpetual energy machines powered by negative comments on KZbin????

[@matthiaswandel]

if that were the case, they'd have lots of power! Or maybe just negative power. That's probably it!

[@OtherTheDave]

Matthias Wandel IIRC, "traditional" wormholes need negative energy to keep the mouth stable.... you might be onto something huge! 😂

[@loola456]

I'm fascinated by your ability to reverse engineer anything. Next up, Women.

[@_oven]

Electrons carry negative energy.

[@purpleidea]

No, they have a negative charge.

[@MattBracewell71]

Exactly what I wanted to see! Great to see how you salvage parts from other's scrap. Much respect

[@patrickwhitehead7584]

This morning I'll be starting a build on a crib for my daughter to be born in February. I'm really looking forward to having her in the shop with me in the coming years.

[@1tombensky]

Delighted to see your daughter in the shop. Never too early to expose them to tools and making things.

[@infocpctrainer]

I'm really fascinated by your explanation of this machine, completely lost, but fascinated. please keep posting such interesting videos.

[@pav1541]

it amazes me how u can take apart and basically engineer all kinds of new stuff ... i wish i had a teacher like u in school or like my frens dad or something ... would love to learn wat u do ... love ur dads shop too .... must have been a great growing up in such a productive environment ... love u channel mate !!keep it coming

[@purplealice]

Your little girl already shows signs of growing up with a great degree of mechanical aptitude! (My dad raised me that way.) There is no such thing as "no user-serviceable parts inside"! :-)

[@FaenumVena]

Ace Lightning i was brought up the same way, when something breaks, i usualy take it appart to find out whats inside and learn how it works. Unfortunatly, when my dishwasher broke, it was the pump that went, and the thing was not easy to get into. At a year old, i would have expected that dishwasher to still be in warrantee? Or do you not have such great support over in the USA

[@TheTechnosasquatch]

Matthias is in Canada, but I imagine they opted out of getting an extended warranty for a better sale price.

[@FaenumVena]

TheTechnosasquatch we have statutory rights here, which is 6 years on stuff like this for manufacturing faults. Too many people dont know that and dont understand what it means. Obvioisly if u abuse it, its not covered, but random failure is covered.

[@purplealice]

I've replaced a couple of dishwasher motors - usually you have to contact the manufacturer to get a replacement motor, and sometimes it's more expensive than seems reasonable. They'd rather sell you a whole new dishwasher instead of a simple part.

[@idezilla]

Moving the sawdust from one bucket to another, fun !

[@KuhnOber1]

Loved the little one running around the shop.

[@GeneraleRus]

I love that every time Matthias gets to build a new blower, he gets more and more crappy materials he has laying to build one! that's what i call recycling to the fullest

[@emeraldgypsyheart]

I've watched your channel for quite some time and I enjoy watching you manufacture things from pieces & parts!

[@factsdontcareaboutyourfeel7568]

Good to see you finally got yourself an apprentice!

[@HaloWolf102]

Incredibly circle jig you used. Amazing that I didn't think of that sooner...

[@wolfgollnitz899]

Matthias, interesting build. I must say, after watching your posts, I read all comments, as an added bonus.

[@benn50001]

Matthias, Love your scientific curiosity. You're a genius!

[@PJGalati]

You are the motor king! I have to say, as a former professional electrical mechanical troubleshooter of eleven years, your skill set is impressive. You always manage to figure things out and make a workaround no matter what you are dealt. I am like that in many ways as well, but I think currently in a much less knowledgeable capacity than you. I'm going to build a vacuum blower system for my shop, based off your designs in this and previous videos.

[@mohammedaziz5496]

Never knew that type of motor existed!!! thanks to clear that up! learned something new!!! :)

[@thenextstepp]

Kids are awesome aren't they? My daughter used to have her own set of tools she would play with while I was working on stuff.

[@yorgle]

I've recently fixed a few water pumps that had a similar mechanism... (fishtank pumps and a standalone water pump.) The entire impeller and shaft/magnet were in a wet environment, and the motor windings were enclosed in a waterproof housing.

[@marcoabduarte]

You might be really good at what you're doing But your daughter is definitely finding the cure for cancer

[@JohnHughes2002]

Nice electrical engineering lecture there, Professor Wandel. And your new lab assistant is cute too.

[@robertoswalt319]

I love the snippits of your helper

[@KarlBunker]

Fascinating stuff, and your daughter made me laugh every time she was on camera.

[@patrol681]

As usual Matthias, your very interesting and informative experiments never cease to fascinate and entertain me. Keep up the good work, - I learn something new every time. Ed

[@kwinters5550]

10:21 When he unplugs the blower, it reminds me of when we were at my doctor, and the TV at my doctor was bothering me due to animated things, and I couldn't find the remote, so I unplugged the TV itself to get it to stop bothering me.

[@MikeTheMaker1]

Clever yet simple way to figure out if the balance is off and where the extra weight is

[@zeeslangyacht7916]

Ich finde die Idee mit dem teilweise in Wasser versenkten Motor cool. Vor allem ist das Konzept interessant, dass der Motor 100% Prozent Wasserdicht ist, dadurch, dass die Welle nicht durchgesteckt werden muss.

[@chrisgraham2904]

Matthias, It is a pleasure to see a man that can babysit while the wife is away and get some work done in his shop at the same time. My son and daughter had to follow three very strict rules while growing up in my shop: (1) ONLY Hand Tools below the age of 3. (2) NO Portable power tools until after the age of 3. (3) NO Bench or Stationary tools until age 5. "Things with sharp teeth eat meat" -- "Power tools have sharp teeth" -- "People are made of meat".

[@MichaelTeeuw]

Your toddler is adorable!

[@marcsimonsen1578]

Love the toddler running around! It's just like my shop!

[@Mutius82]

Super interesting stuff! And really glad to see that motor come in handy, weird as it is... Thanks for the vid!

[@joshinils]

Very nice cut where you marked and then just separated the wood, i like those

[@Dqrnan]

Love your videos; you inspire and give me great ideas...Thank you. I was going to ask about the lubrication of this motor, but you answered it in your closing statement. Thanks again.

[@abhishekgourav6144]

Your motor reflexes are good...

[@spugintrntl]

Your videos age like fine wine. I'm assuming anyway... I've never actually had fine wine.

[@playersidekick]

Very informative. I really enjoy watching these experiments

[@MRrwmac]

Kids are amazing and do things with a great amount of similarity. We watch my granddaughters during the day and my 1.7 year old sits on my workbench playing with safe tools, and also fills one bucket to the other and back again (as Harriet does). I have seen their similarity in Germany, Korea and Russia. Amazing little humans!

[@Metal-Possum]

That toddler is adorable.

[@linod7265]

Woow Matthias your a practical Genius!!! I admire your videos and your work. Congratulation from Mexico.

[@Moraren]

That washer on the pencil was genious! I need to remeber that one!

[@mrcutfish]

Nice job, great helper!

[@chazmazzing995]

Thanks , now I know what to do with my old dishwasher . Great video.

[@arrenbie]

Love the way your kid is helping you tidy up ;-)

[@TheRooster1122]

Ingenious my friend!

[@Canilash]

Nice trick with the washer as a spacer to trace the width of the housing!

[@brianpiper3188]

Helpful toddler in the shop, best video ever!

[@mikedickson2925]

Very interesting video. I like your investigation of why the motor was made the way it is.

[@rolandvos]

Lovely new dust collector....

[@GeekyGarden]

This explains the chugging noise my dishwasher makes as it finishes draining.

[@comma1981]

1. Cool. I also learned something new about motors. 2. Your kid playing on the counter is so adorable. I have a 2.5 years old kid (boy) and I can't imagine him playing so quietly alone for an hour (my assumption of the time it took you)

[@learnerlearns]

Always fascinating and edifying!

[@ShaukatHakim]

Always very interesting!

[@alfaomega4381]

YOU´RE BEST MATTHIAS !!

[@harryjnr2335]

Love all your videos, you are a very clever man.

[@bencoleman1893]

These motors are basically a larger version of what they use in pretty well every fish tank pump made

[@archieyanson2650]

Hahaha...its just a happy scene to see your little kids around. Be always sure to keep them SAFE when youre working...😁😀

[@Ballacha]

this is the same type of motor used in filters for fish tanks. their advantages are safe (because the moving part itself doesn't need a seal, so you don't need to worry about wearing on the seal at all) and super quiet (my 9W filter motor's noise level can't even be properly measured because it's lower than ambient noise). imo a more interesting way to salvage this type of motor is to make a small hydro-generator out of it. i'd certainly love to see Matt do that.

[@albertlagerman]

I've seen those motors on newer fountain pumps. I didn't know what they were at the time, but that is some pretty interesting technology

[@Davegbuf]

Interesting but I wish I understood more about electronics and motors. Maybe I keep watching more videos. Nice job but the "like" this time goes for your toddler for being so cute, and learn about tools at such an early age. :)

[@viktorjarm6878]

This is so cool! You have a talent to make anything you like! Well done for recycling :) It looks like a turbo booster in the car :)

[@magnusnielsen2648]

thank you Matthias!

[@Pablo4949]

I used to be an engineer on dishwashers (but not with the motors and pumps) so this was especially interesting.

[@kaboomer13]

Diresta has a cat, Matthias has a daughter. They're both cute and add charm to your videos!

[@Metalcastr]

Really cool, I love motors and this one is really neat!

[@williamdawson3353]

Super interesting video.

[@PaulScott_]

Little shop helpers are the best!!!!!!!!!!!!

[@ekw555]

@1:56 "well, I guess that would have just screwed right off. Whoops!" pretty much the story of me and every thing I have broken to disassemble!

[@johnbhumphrey]

You a damn genius, man.

[@johnasumaa9662]

Your apprentice seems quite industrious.

[@brw3079]

Well worth the time, thank you!

[@snomaduru5831]

You are very talented

[@DeDeNoM]

So, you Need to pull the choke to get the motor to start? Sounds kind familiar

[@matthiaswandel]

ha ha, hadn't thought of it that way!

[@experiencingtechnicaldiffi5184]

Maybe build an iris for the inlet closed with a solenoid powered by the starting current. Because a butterfly would be too easy. I have an old carb from a garage sale with an iris for the choke. Never could find out what it was used on.

[@JohnSmith-zr4ez]

This motor is made by an Italian company called Askoll. They make energy efficient motors and electric mopeds and bikes.

[@ThatElectronicsFool]

I have a bunch of pumps from dishwashers and washing machines I've taken apart over the years. Many of the pump motors look like the one you have here, minus the electronics. Yours is the first I've seen with a controller in the rear. All the ones I've kept have a large coil that looks a lot like the ones you see on shaded pole motors so they keep trying to run as long as there's power applied. I'm guessing not only is this design for efficiency, but also for safety in case something gets stuck in the pump. Thank you for the video!

[@Najvalsa]

That rotor is like what you'd fine on a water pump, like pumps for liquid cooling computer components in either open loop or closed loop cooling solutions.

[@sharukhanklesaria2365]

Awesome thanks so much, I ve learnt so much from your videos, thanks !

[@bahaar5215]

They grow so fast. I remember your daughter when she was really little

[@MeshFrequency]

This man is a wizard!

[@jakob1379]

Love the joke about perpetual motion! 😂 and nice video as always. Keep them coming!

[@mr.papercraft603]

The little helper is back :D

[@chrisgonzales81]

Love the shots with the your kid

[@bunberrier]

Fun stuff Matt, loved seeing your helper in there too...that's awesome! BTW perpetual motion or free energy machines do work well if used properly; they seperate the gullible from their money by turning them into "investors".

[@rayelliott2743]

no wonder your shop stay so clean

[@frankytripod1]

I’ve taken a whole day off to watch ur vids and drink beer 🍻 best ever

[@ottoreuter6279]

I've been cleaning a much smaller version of this type of motor in a fish tank filter for years... Never understood how it works till now! Thanks Matthias!

[@pawelaco]

You have great ideas

[@alonalgr660]

sounds like the bearings are hydro-dynamic bearings. if they are they won't last for long in this setup. awesome video as always! thanks

[@intelligenceservices]

very interesting. I've seen this kind of motor in submersible water pumps for hydroponics and water features.

[@mathiasdm98]

Nice video as always! I remeber that this type of motor is use for pumps in fish tanks.( At least the pumps that I use are) just a simple design that can be submerged in water if the rest of the electronics are cast in some sort of epoxy.

[@Schranzoslavek]

"It sucks a lot harder" -Matthias 2017

[@leon_mnl]

matthias ,i wish my dad had a workshop when i was a toddler,it is always cool to see that kids 'know' they're way around a shop! nice video again,so the moral is ,don't throw away stuff,take it apart and re use parts as you need them,as for the sheet metal on the dishwasher ,are you going to build a electric mini car and shape the body out of wood and metal.......that would be a cool series,i'll watch it!!!

[@zachhilty6822]

Haha... you went through the trouble of cutting those notches at 4:30 just to avoid a nasty pocket-hole encounter! Very sneaky...

[@websitesthatneedanem]

Very interesting!

[@zweg1321]

I think it is great your daughter is willing to come and play wile you make things My son couldn't be bothered not even now that they are grown My father did to me what you do and those memories are my fondest memories of my father

[@GooogleGoglee]

You are impressive man! Very handy! I follow you Good job

[@MaikEletrica]

Very nice!