DIY 3D Printed Vacuum Impellers

[@BPSspace]

Please never stop putting the custom RCtestFlight music in these videos, I love it so much

[@thesnitch7]

all the effort and amazing footage of these experiments - and you comment on the music ?????!!!!

[@Acrophobia2]

@@thesnitch7 the music is lit af!!!

[@CausticLemons7]

@@thesnitch7 All the effort of mixing ingredients to bake a cake and you comment on the frosting?! C'mon bruh! The videos are great and the music is like a beautiful capstone.

[@thesnitch7]

@@CausticLemons7 who said the music sucks? Not me. I love the whole thing.........bruh. BTW - thx for proving my point re:effort vs frosting - I agree 100%........bruh.

[@thesnitch7]

@@Acrophobia2 yep. But it's not the main thing.

[@DeuxisWasTaken]

I love how 2:40 is just casually applied science as in "hey this should work like that" *tests it* "oh yeah it does". Every day I'm thankful for modern knowledge and the modern tools that let us so casually test stuff.

[@swedneck]

oh man i was expecting Ben from Applied Science to randomly show up

[@reginaldjeeves9825]

Except he's wrong. Exactly backwards. It's using less current because the resistance in increasing. It's harder for the rotor to spin because there's lower pressure on the inside but full pressure at the outside trying to rush in backwards. If he put his hand on the blades it would have the same effect - current would go down. For a fixed voltage current will decrease as resistance increases.

[@jannikheidemann3805]

@@reginaldjeeves9825 An electric motor is not an resistive load. It contains coils of wire, solid pieces of metal, which current will just flow through creating a magnetic field. The fewer work that field does the more current can flow. The impeller not being slowed down by incomming air means it does less work.

[@peterrandall7657]

Compressor engineer here, the current decrease has all to do with "suction throttling". What's happening is the restriction of air flow restricts mass flow. And the total reduction of mass flow is greater than the increased compression work (specific work done on the air). With suction throttling the Inlet velocity at the eye of the impeller is reduced but the exit velocity is not (it is relational to rotational speed) so for every gram of air the compression work is going up just not as much as mass flow goes down.

[@TantalumPolytope]

@@reginaldjeeves9825 except you're wrong since an electric motor is not a resistive load, but instead its an inductive load

[@Hahatome]

The smoke looks so cool when going into the vacuum

[@jonathancorbett5917]

You are going to enjoy the Fan Showdown on the Major Hardware YT channel

[@SandeepKumar-jj7zi]

How did he generate the smoke?

[@bakane6030]

@@SandeepKumar-jj7zi some kind of smoke machine. It’s probably tiny water droplets.

[@user-xv1vm5xc1f]

WHERE STL

[@ScottieNiven]

I recently picked up a Dyson V8 vacuum for cheap with no battery just to take it apart, the digital motor inside is just insane, in max power mode it pulls around 550w of power and puts out an insane amount of air, in low power mode its around 150w. I have converted it into a dust blower for dusting out PC's and its the best one I have ever used.

[@wakefieldallan]

Makes sense why you only get 10 to 15 min on max... still impressive as hell though. Now if I could only get my kids to put it back on the damn charger....

[@Moofish1998]

Have you got any plans/pictures of the converted Dyson?

[@velianlodestone1249]

@@wakefieldallan Yes, but compared to a regular 1800w vacuum, they are impressive AF

[@ellisfletcher3491]

Even the dyson V8 is nothing compared to the newer V11s and V15 dysons

[@erskatti]

I made a shop vacuum a week ago using the turbo style impeller and a cyclone. It actually worked quite well despite the poor balancing of the impeller causing a painful screech propably just wearing down the bearings. I actually got the idea from your cyclone video and hoped you would make a vacuum generator for it. Man I love timings.

[@OMGWTFBBQSHEEP]

Thats pretty cool!

[@deathcogunit106]

Cool! I've been wanting to do something similar for the shop at my work, homemade giant vacuum and hide it behind a wall with a hose coming out. Those big central vac motors are not cheap but I think if I found an old motor I could make something work. Maybe skin the 3d print with glass or carbon fiber.

[@linmal2242]

@@deathcogunit106 Some years ago we just used small forge blowers in our woodworking factory for dust and shaving extraction. The missus sewed up a bunch of calico bags to collect the swarf; used to work real well ! Empty it into the compost heap(if not treated pine!)

[@marekfiferna]

Looking at the turbine with its housing, my first thought was: "oh no, he made an air raid siren". Look at the air raid siren from Matthias Wandel. Those equally spaced stator columns with the rotor blades are probably what makes that horrible noise.

[@BSC_PRODUCTIONS]

"Horrible" depends on what type of person you are.

[@akkudakkupl]

Yeah, you need unequal number of blades vs outlets, otherwise you end up with a siren :D

[@BSC_PRODUCTIONS]

​@@akkudakkupl Yep Though there are some sirens that have 4 outlets but 10 blades or 10 ports, For instance, The CLM Siren. Another example would be the Thunderbolt series. With only 1 thin opening at the front

[@akkudakkupl]

@@BSC_PRODUCTIONS Well the more correct answer would probably be to have blades and outputs non divisible by a common denominator? For example two primes, or a prime and the same number -1 or +1.

[@marekfiferna]

@@akkudakkupl That's only to get a constant tone, I was mostly talking about the matching blade and outlet cutoff shape that significantly increases the noise because of pulsing.

[@Jonas.856]

9:35 - Congratulations on selling 23 690 420 kits, that is a lot of orders! Getting over 2 billion visits per second is also incredibly impressive :)

[@erskatti]

That's just impossible O_O

[@Frappe3621]

The revenue seems to be over 10B at 10:04

[@AlexanderGee]

Nice

[@JimmyKip]

the Conv. Rate was also lit!

[@Ollie9T7]

its fudged data XD

[@stutterpunk9573]

Loving these recent 3d print test type videos!

[@user-xv1vm5xc1f]

But we need STLs

[@hellothere899]

The final destruction slow-mo and the music was absolutely perfect

[@giga-chicken]

Should have also tried a squirrel cage design. Poor static pressure, but they're hard to beat for flow rate.

[@jubuttib]

Would be interested in a lobe and a screw type too.

[@jasonsutter3818]

congrats on your 10 billion in sales my dude!

[@OghamTheBold]

That literally _sucks_ - damn I mean Hoovers up - all the economic activity out of the country - all going on _plastic_ US debt is now $39 GOD Zillion

[@Purplemana]

The song at 7:55 is too good. Upvoted!

[@Lampe2020]

9:07 I really like how the top part tried to put itself back after spitting out the plastic out the side!

[@DeltaOps3]

wow daniel has come a long way from foam planes to being one of richest man on earth, such humble beginnings, all it took was a snow cat project. truly a visionary.

[@dfgaJK]

Great choice of music for that slow-mo, You synced it up perfectly!

[@LCdrDerrick]

These impellers have names when used in hydroelectricity. The automotive turbo radial to axial or visa versa is a *Francis* turbine. The waterwheel type is a *Pelton* turbine and the complex with the six stages is a *Kaplan* sort (with hydroelectricity it is a single one). The Pelton is used when volume is low but the pressure is high (high up in the mountains). The Francis is used when volumes and pressures vary over a significant range. The Kaplan is used when there are huge amounts of flowing water but very weak pressures (Run-of-the-river hydroelectricity). Its all about stuffing limit and compressor stall and the depending efficiency in the compressor map.

[@axel_is_gaming]

Loved the browser inspector work on that huge revenue amount. 10 billion in revenue! NICE!

[@OghamTheBold]

Please ask him to use his skills counter rotating on the US debt spiral clock $194500 per worker it is shows according to the vacuous wind bag OIG (Orifice of Inspector General)

[@hesterclapp9717]

I love the effort you will put in to reduce noises

[@TheBoojah]

Just for fun, you could combine the fan and the separator: In the radial blower on the outside edge of the scroll, add some holes or slots/vanes that leads to another scroll. Heavy particles will flow on the outside of the stream dragging the wall (like in the cyclone), as a hole appears it will get flung out. Now this other area in the secondary scroll is kept at a slightly higher pressure than the main exhaust via a damper, otherwise pretty much all the air goes there. This flow is routed to an inertial separator, but the flow is lower and more concentrated so it could be more efficient and smaller. (Or just a big vacuum cleaner bag) If the impeller is subject to dust straight vanes are the best, but otherwise it would be fun to test the difference between backward and forward curved impeller vanes as they are more efficient.

[@JulianaGale675]

Yea the smoke looks cool. Thanks The balance between planning and flying is the hardest thing for sailors. We now use speed to stay on the foils. It is all about the movement of fluids.

[@squidcaps4308]

Simple flow tester that can be used to compare things: DC motor fan. It will spin up as the flow increases and you can measure the motor output.

[@mrvisual2482]

Honestly, there hasn't been a single video lately that hasn't grabbed me. Awesome channel, Daniel!

[@tanmay______]

3D printed everything babyyy!

[@shawnbegay7220]

I just downloaded the free version of Fusion 360 a month ago. Videos like this are giving me the gumption to get more into it. At the turn of the century, I was modeling parts like this for Honeywell - Sky Harbor in Phoenix, formerly AlliedSignal/Garrett AirResearch technical illustrations. I used AutoCAD Mechanical Desktop 2000 to model axial and centrifugal compressor and turbine bllades. Although I was creating 2D technical illustrations, I was given a box of paper drawings that I used to create accurate 3D models. One of my crowning achievements was creating an accurate 3D assembly for the Honeywell/Rolls Royce LHTEC T800 engine, which had two centrifugal compressors and conventional axial turbine section. I imagine that aircraft maintainers are using my illustrations to maintain an APU used on the B2 Stealth Bomber.

[@verb5006]

3:10 CDC and WHO, would not approve of this design LOL

[@gatekeeper84]

The German-Canadian wood wizard Matthias Wandel has some good impeller videos.

[@tracybowling1156]

I've never been interested in RC type videos. But your channel is so fun! I just love them all. Thanks man for all the interesting videos you share!!! I would be remiss if I didn't mention too that I love the jingles in your videos. It really makes them unique!

[@seancollins9745]

On the turbo compressor, making the inducer to exducer ratio larger ie smaller inducer versus larger exducer will generally improve delta pressure across the housing. Increasingly positive blade rake helps, more positive curvature in discharge blades increases delt as does increasing the radius of transition of inducer exducer. Adding a venturi nozzle about 3 diameters above top of inducer helps backflow. Interesting but expected results

[@kevinlind4640]

Please combine design one and two, I'd be really curious as to if it would improve performance!!

[@bknesheim]

ref: 4:00 What you need is not a resin printer but a 2 nozzle printer that can us a water soluble support material. Printing overhang on a resin printer is a killer for surface and correct shape. Print models that need small details and correct shape on an resin printer and most of the time I have to manually place support to get a good result.

[@GlennBrockett]

I very much enjoyed the demonstration of spontaneous catastrophic auto disassembly. Thank you.

[@Bamlydean]

I would love to see you do a few fusion tutorials. You are really good at explaining things.

[@maximiliangroer993]

This track is amazing, can't wait for the album to drop😄👌🏼

[@johndoe528]

The effect where a vacuum spins faster when you cover intake also works in reverse, even more counter-intuitively - if you force more air into the intake, like with another impeller, the second one will _slow down_ and draw more current from the added mass of air it has to push through itself.

[@Sonny_McMacsson]

That's how centrifugal impellers act. When you stop the flow, the air stuck in the casing is already up to speed, rotating with the impeller blades.

[@bjmbjm]

Cool stuff. Most turbomachines (non-positive displacement) reach peak pressure delta across them around their mid volume flow capacity. You could be quite far down the pressure capability in your static suction test. My bet is the turbocharger style would win out for suction per watt input. Your axial flow design has the most potential but you need pressure taps between each stage to ensure each one is doing its part. Did each stage have a different blade design?

[@ProlificInvention]

I wonder if you could print a plastic version of a Roots type supercharger just for your particular brand of experimentation...which is frickin entertaining and brilliant.

[@eviethekiwi7178]

We use those big “snail” blowers, as you call them, to move loose wool fibres around the factory. They work pretty well with straight blades on a conical body, to deflect the flow away from the centre. If you made the blades twice as wide, you would start to see some serious flow, with pretty good efficiency The reason we use them is because they’re beefy as hell, and they don’t get worn away by the wool too much (wool is amazingly abrasive). There’s no way to beat a multimillion dollar design like a commercially produced vacuum impeller, but it sure is fun as hell to try!

[@scalak]

Hey, Im printing impellers for my studies and testing them. Good work there guys, nice to see someone's approach!

[@Lozzie74]

Brilliant work, Daniel! Congrats on your snowcat sales, too!

[@getoffthegames89]

Right! 10 trillion dollars is no joke!!

[@AmatuerHourCoding]

@@getoffthegames89 Neither is a 420 percent conversion ratio

[@martylawson1638]

Need more space between the rotor and stator vanes if you want the fan to be quiet. 3-5mm worked well in my experiments. Since the rotor is 3D printed, you can use a fully enclosed rotor instead of leaving the vanes open on top. Also, in my experiments tip speed correlated the most with pressure and noise. So you can half-ass the rotor, but still get great noisy performance if you spin it fast.

[@balduron97]

8:57 So beautiful

[@CaptainHookNumber1]

I used a 29€ handheld but battery-free vacuum with a 450W asynchronous motor and a power regulator socket that's sold as a speed conrtoller for pond pumps (15€). Now can regulate the power between 100 and 450W and have a sufficient vacuum for my 3018 at 100W. I also printed a cyclone for a bucket and if anything goes through I still have the cyclone and the hepa filter in the vacuum as a back up. It's not as quiet as a dyson but it is surprisingly strong (the bucket needs reinforcement to not buckle inwards above 350W)

[@crgintx]

The turbine section of some turboshaft engines use a low pressure axial flow fan to provide a high volume of low pressure air to a centrifical turbine as the high compression side of turbojet. Reduced number of stages with fewer parts, lighter weight and compact length. The output side is usually a free turbine providing power to the shaft with reduction gearing. They have impressive power to weight ratios.

[@alangregg7171]

I've been casually watching your videos for years, and i must say you have really upped your game. Keep up the good work

[@xabibilboful]

I'd love to watch the Fusion360 design process! Great video!

[@yasseryasser-it6fp]

A thousand million thank you very much, all the love to you from Jordan

[@HelloKittyFanMan.]

Interesting: When you spin a motor faster by normal means, it takes more current, but when you let it spin up by reducing its drag, without also increasing the voltage or pulse width, then it takes less current! I hadn't thought of that!

[@Ziess1]

The miracle of motor back EMF

[@rileywatson401]

I work on a vac truck, our truck has a second engine to run the fan system. our fans are very thin at the tips at around 2 inch and goes to about 6 inch in the center, id say roughly 3 foot diameter. We use 1 cyclone with 2 fans

[@shurmurray]

A few thoughts (based on my own experience): 1. In snail-type blower it is always better to add disk-shaped basement to rotor. it is sturdier that way. 2. thicker paddles also helps with durability 3. there is not much difference, if any, between turbocharger-style compressor and snail-type blower. 3. for the highest static pressure - a few centrifugal blowers in series. Many vacuum cleaners uses two staged blower.

[@DktheWelder]

That song is so awesome! I testing my 3d printed water jet soon I wonder if it get disintegrated ! Great video as always 👍

[@toddharshbarger8616]

Such a fun project! If i had a 3d printer i would add dust shrouds to my router, pantorouter and other wood tools! Also would see if a closed system (by routing the blower vents to the front of the tool site so that air flow is not just vacuum but also blowing - not absolutely closed but as close as possible)

[@piconano]

I can tell your prints are yours, by how you mix colors when you run out of one. Colorful prints and videos all the way baby.

[@stevesloan6775]

I did play that again hahah; I wanted to see that huge 3d printed funnel again. Really funny cut-away.

[@AlexJoneses]

The music always hits me in the face because I never expect it to come. Also, those Dyson, although they cost an arm and a sausage, they are pretty well engineered, always fun to see the inside of them

[@jollyjoystick1696]

You introduced me to sea shanty music genre. Never knew it's a thing. I listened to the song you made before the Nathan Evans - Wellerman. And I was like "Damn! this dude can do music too. Cool" and you clearly are. Good vid as always.

[@jollyjoystick1696]

lolmy comment says "Cool stuff. Most turbomachines (non-positive displacement) reach peak pressure delta across them around their mid volume flow capacity. You could be quite far down the pressure capability in your static suction test. My bet is the turbocharger style would win out for suction per watt input. Your axial flow design has the most potential but you need pressure taps between each stage to ensure each one is doing its part. Did each stage have a different blade design? You introduced me to sea shanty music genre. Never knew it's a thing. I listened to the song you made before the Nathan Evans - Wellerman. And I was like "Damn! this dude can do music too. Cool" and you clearly are. Good vid as always." AND I ONLY TYPED "You introduced me to sea shanty music genre. Never knew it's a thing. I listened to the song you made before the Nathan Evans - Wellerman. And I was like "Damn! this dude can do music too. Cool" and you clearly are. Good vid as always."

[@ParsMaker]

try to print your part with PETG filament, its strength and adhesion layer good for impellers

[@cllris]

I see you Major Hardware gang. 👀

[@Nathanael2jcBH]

can you combine the two cyclone separators to that dust goes into the one thats made for big dust and then fine dust

[@faxezu]

Your axial linear design is the exact design a turbomolecular pump for ultra high vacuum uses. The difference in working principle is that yours pumps the air in a classical manner while a turbo pump transfers momentum from the spinning blades to remaining gas molecules which when bounce of the static blades to get to the bottom. Thus the blades have to move at the same velocity as the molecules. Defending on the gas you want to pump this means rotational speeds of between 20,000 and 90,000 rpm!

[@Resinball1983]

The DIY is awesome.... But can we buy/download the STL or OBJ files?

[@project-hobby]

Lol skill issue

[@xyzero1682]

Love this tinker project. The take apart the new Dyson, and try to replicate/improve it.

[@Depl0rable10]

Just wanted to say, watching the turbo explode was amazing. Please include in the future

[@Gumby1974]

Those Dyson vacuums are awesome! I was so skeptical when my wife bought one but I'm sold.

[@grahammcnally4799]

If only there were Daniel clones making Daniel content all week long

[@lasserious]

I think DIY Perks did a video on some kind of acetone mist bath (I think) that would help smooth out 3D print lines. It was interesting maybe a wonky way of making a "smooth" finished extruder print.

[@akkudakkupl]

The axial construction could be simplified by either using a spline shaft and having the rotors and stators stack up or by having the stator ring made in halves instead of... well, rings. Also tip clearances rob you some significant delta p.

[@RCRitterFPV]

that static pressure fan test would be a hell of a way to test FPV motors and props. needs some sort of closed loop with a load cell.

[@TheHandyAndy]

So try this on the inlet of the cyclone on the back side of the inlet put a a flap that points to the center of the cyclone. When parts make the rotation they hit it and fall down if there super heavy.

[@INDIRC1]

Your video is amazing

[@carveroutdoors]

Your songs are the best part.

[@calebdrake9953]

I’ve been waiting for this video

[@BrokenLifeCycle]

May I suggest using two or more modified EDFs turning in opposite directions? It's effectively like putting a set of stator blades in without the complicated construction.

[@Pemberdeer]

7:47 available on iTunes?

[@Raphael_aperture314]

Wow! Now THAT is AWESOME!!! Makes me wanna make somthing like that

[@crazyhairedcoder]

the $10,000,960,420 revenue got me 😂 9:36

[@aksela6912]

Have you watched Matthias Wandel's experiments with centrifugal blowers? They're quite insightful.

[@antifederalist]

I feel like we're inching towards an rctestflight/woodgears colab video, which would be amazing.

[@jamster2400]

I’d recommend buying a pressure gauge and using a plenum to do the “suction tests” you can get all the data you need from pressure through to airflow

[@helmanfrow]

9:44 _Preferred platform of choice._ If you're going to be redundant you may as well alliterate: Preferred platform of preferential preference, perhaps?

[@TechnologistAtWork]

I love how you just made a video about testing something not about flying but very related.

[@ronin_user]

Rock the bells MC Cyclone.

[@rusticagenerica]

Love your water test !

[@charleselkins4546]

Do you sell the 3d printer files for the items you are testing in your video?

[@FarmerFpv]

Congrats on all the pre-orders. You're off to a great New Year.

[@charismagavina7412]

Your channel is so interesting and satisfying to watch

[@Alexander_Sannikov]

omg this is amazing, impellers are awesome

[@martingrimmitt3992]

The sequence starting at 8:34 is a great demonstration of why jet engines cope with atmospheric water ok but not ingress of solid objects

[@jacobdavidcunningham1440]

damn nice design skills 2:10 that's sick visualization 4:22 oh man that's so much material ha

[@faradaysinfinity]

so glad you played the cyclone song again!! made me laugh hard

[@specialagentdustyponcho1065]

Good thing your friend didn't have COVID! Good video as usual.

[@alwayscensored6871]

Omicron is basically a cold.

[@specialagentdustyponcho1065]

@@alwayscensored6871 take your meds, you're having another delusional episode.

[@alwayscensored6871]

@@specialagentdustyponcho1065 Nah, just a slight fever, muscles aches, a bit of a headache. Wonder what it is?

[@AerialWaviator]

For a dust collector, do you want more volume, or a higher pressure differential? Maybe there is a relationship to noised generated that serves a limiting factor? The objective of the build was not clear, but did result in higher entertainment value. Perhaps a more meaningful objective. Generally a squirrel cage fan is considered a quieter design so wondering if a reason such a design not considered?

[@shiftednrifted]

the cyclone track is 🔥🔥🔥 hahaha

[@MrJdsenior]

The slow mo of the plastic induction caused pandemonium was great. Think about what it takes to make the compressor section of a large aircraft turbine able to sustain bird strikes, even through the hot section.

[@Scooterman8846]

that slowmotion though man that was epic

[@kylechin8706]

That song was amazing.

[@james-5560]

Mind blown on the vacuum cleaner thing

[@gregorychard]

G'day mate Just found your channel and I havta subscribe straight away. I love the way you do your research and investigation, simply brilliant mate. Havagooday from Australia Greg

[@MrSyNRG]

The song is pretty amazing indeed

[@brudesim5673]

Just ordered my first 3D printer and this video inspires the shit out of me!

[@chrisslky7018]

Excellent test! Destruction at slo speed is so oddly satisfying! Cheers!

[@GarranEastman]

Do you have the project files for the impeller with the shroud and the axial?