I SUPERCHARGED My Custom Loop…… Literally
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- เผยแพร่เมื่อ 24 ก.ค. 2022
- Deepcool LS AIO
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For a long time I wondered if it would be possible to design and build a functional Roots supercharger for my PC. One that would look like the real thing and actually function. Well I finally decided to sit down, open up solidworks and give it a shot. What I came up with looked and worked better then I could have ever imagined.
Supercharger Model
www.thingiverse.com/majorhard...
PARTS,
Inserts
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Motor
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Vented pull out dowel
www.mcmaster.com/98432A129/
Fasteners
www.mcmaster.com/98432A129/
Filament used DURAMIC 3D PETG Filament
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Printed On FLsun V400
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Twitter
/ majhardware
My Twitch
/ majorhardware
Cameras used.
BlackMagic Pocket cinema 6k pro
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Reddit
/ fanshowdown - วิทยาศาสตร์และเทคโนโลยี
![BOWKYLION - ส่วนต่าง (do it without me) [Official MV]](http://i.ytimg.com/vi/7x-pwcMopzE/mqdefault.jpg)
how on earth you gonna attach a good motor and then be like "let me know if you want me to do it" but i guess it got engagement out of me. so well played
Things take a long time to 3D print if you ask him to remake it he probably will
Came here to say the exact same thing and to subscribe! Please, do it!
Edit: Naval Aviation > Chair Force 😉😜 21 years avionics
Screws please!
Don't go half-cocked! All or nothin!!
Yes do it.
Of course we want to see it run at full power!
Heck yes I want my computer to sound like a big supercharged V8... Sadly this is not a gimmick comment I would be completely amused to hear it ramp up when cooling requires it.
It's a no brainer.
Yes I want a supercharger on my PC.
got those plastic charger blue balls.
Yesssss
@Craft Computing what beer goes well with this supercharger setup?
I'm an engineer and I can tell you there is a very good reason why "twisted rotors" as you put it
have a major advantages... they are worse at slow start up speeds, needing at lot more torque to get them staerted
but after that as long as they are precision made they will far outweigh a standard rotor in performance AND longevity!
Edit:
I doubt a 3D-printer could reach that level of tolerance needed for a twister rotor to work....
still your not one to back down from a challenge 😀
This is it, a twisted asymmetrical rotors are way better; BUT, the tolerances they require are far too much for any 3D printer. I think it would probably have much worse performance out of a 3D printer.
How about a resin printer? Atleast better than an FDM. But probably still not enough precision right?
@@jet613 you'd be surprised with how precise they can get
@@jet613 Am 8K resin printer is pretty darn precise. What kind of tolerances are we talking about?
You could always include a flexible seal, aka wankel rotary seals, to help with the sealing issue.
I use to build these types of blowers at my old job. You do want tighter clearances and also the gears on the end would be timing gears. You would probly want to use some sort of SHIM to get your clearance to set it up . When a blower is timed correctly it really does make a unique noise. almost like bubbles underwater
few things..
1. Defiantly want to see twin screw on this!
2. There is a plugin for fusion 360 to make herringbone gears which are quieter, stronger, and are self aligning (ill try and find the link if you want it)
3. is there a way you can measure static pressure of fans?
Static pressure would need pitot tubes maybe?
or going Full GamersNexus: th-cam.com/video/4vYDeXpVTvs/w-d-xo.html
pushing a column of water against geavity, like the old days
@@stephen1r2 mount the fan to an air tight box and a U shaped tube with one end inside and one end outside. Like they did on Mythbusters once I think in the episode where they tested if someone could accidentally run through an office tower window. In that they put a window on the box and pulled negative pressure to simulate the fact an office tower has positive pressure and since they threw the dummy at the outside of the box they had to pull vacuum. But the way they measured the pressure since no gauge went low enough was a U shaped tube full of food colored water and marked inch measurements on it with a sharpie.
@@stephen1r2 pitot tubes measure total pressure but can also measure static. be careful repeating things gamersnexus says. he is very smart but even he admits that his air flow tunnel is new to him and all the tech (if 80s tech is still tech lol) it has he has had to learn about.
I'm also defiantly wanting
Couple things..
1. PLEASE USE THE FASTER MOTOR. I want to see what airflow it makes and the smoke test.
2. You should find a way to measure static pressure (future video project?)
I also was really impressed with how smooth the air was coming out the bottom.
I definitely agree that static needs to part of the testing criteria moving forward. This blower probably wins first
This
I love the fact at 14:08 he leaned back and as far as he could from the blower, while keeping the remote firmly planted on the table like it's nailed down.
This is probably my favorite thing I have seen on you channel so far. My passion for cars meets my new passion for PCs. I definitely want to see more variations this design.
A pro-tip: make a 2" in. tall plenum chamber that goes between the blower and the rad, so the pressure equalizes across the face of the radiator. Makes it more efficient!
With this very modular construction, that should be easily doable while not having to redo so much. Also since finned radiators force airflow directionality, I think a lot of potential is lost here due to airflow only really passing through a rather narrow section of the radiator's exposed surface. There's a _very_ unfavorable efficiency curve at play here because of this.
Using said chamber to even out pressure and spread the output area, will IMO greatly improve that. This is also why most decent quality (PC water cooling) radiators have 0.5-1 cm of clearance between the frame/cowling the fan(s) frame mate to, and the radiator fins. To reduce airflow dead zones.
There's a reason why the near-universal standard for more/better cooling capacity is _more radiator surface_ (and more/larger fans to cover the increased area, unless it's a passive setup) - and rather rarely "improved" through faster and higher static pressure fans for the same radiator, unless there's just no more space available.
Heck this is also why if you for instance double radiator surface area, you can usually get substantially better cooling performance even with less _combined_ airflow and fan power consumption from the scaled-up setup (for instance 240mm rad with 2x lazy, slow spinning 120mm fans), than with the smaller and less performant setup (120mm rad and 1x aggressive, fast spinning 120mm fan).
TL;DR More radiator surface area getting airflow throughput, is substantially superior to higher airflow throughput through the same radiator surface area.
I was just gonna suggest that, great tip!
That's the only way a roots type blowers work. They create the pressure in the manifold.
Pressure. Static pressure.
This charger can blow through multiple dense radiators.
I vote for pressurising everything in one tube!
That's where it will shine
@@saltwaterrook4638 they dont create pressure, they create flow. Restriction creates pressure.
The biggest problem with this design was the geartrain. Make more robust gears that maximize torque from the motor in the efficient speed range of the rotors, and it seems like it'd be able to move relatively astronomical amounts of air.
@@ButterfatFarms damn... nothing gets past you. clearly he wasn't attempting to make anything of sufficient performance
@@ButterfatFarms obviously his goal was to make a device that moves air, so it stands to reason that he would want it to move as much air as possible, as that would match the trend of this channel. The point you're not getting is that this is a fun project, and believe it or not, it's fun to make "useless" things work well. Besides, you don't know that strapping it to a lawn mower won't actually increase power because you haven't tried it.
_"The biggest problem with this design was the geartrain."_ You do realise the gear train does nothing but synchronise the rotors? It doesn't offer any speed reduction or increase.
@@ButterfatFarms the goal is to make a cool supercharger model out of plastic that moves some air, and if possible move as much air as possible.
No noise concerns, no efficiency concerns, no pressure requirements. It's a fun stupid project and that's the best part of it.
@@ButterfatFarms you get it! These projects are fun to tinker with just because. And I agree that the biggest problem right now is the broken motor mount, lol
This is AWESOME!!! Would love to see you push this concept further and see the potential. This is way more fun than a pc fan concept has any right to be, but i'm here for it!!
Maaaaaaaan, this tickles all the right spots!! I'm a former mechanic, with some experience with forced induction... this is such a cool little idea. Lots of refinement required, but you are on track with that fast rpm motor. I think I'm gonna try something like this myself, but with aluminum housing and printed rotors. Great video!!!
Mhm because of clearance would it be better to wear slitly oversized rotors in a harder housing or go full on precisson grinding?
Add some low-friction tape to the sides until things start rubbing, then remove a layer there. This should create a much more solid seal and beef up those numbers!
One thing that might help you get tighter clearance is to print slightly oversized to where certain things are just barely rubbing together. Then run at a lower RPM for several hours so the parts wear in.
Also I would LOVE to see a large one of these designed for a 360mm radiator!
Good idea, if the compound of the screws is the same compound as the housing is can wear the housing in some too. This will still creat a tighter tolerance but will compromise the shape of the housing, another way to get a tighter tolerance is to use gear marking compound, and cover the screws in it, install and spin them a few times. Take the screws out and check for wear, do a light sand on the spots that have the marking compound rubbed off. Than cover the sanded areas in marking compound again and repeat. You do this until the tolerance is perfect, you just have to be care not to go overboard with the sanding.
a thing i do when I want tight tolerances between parts is to again print them a bit too tight but then use one of those kitchen dish soaps with like a sand in it and it turns out it works very well as a mild abrasive
Horizontal expansion =0.2
Straight blades will never seal unless he uses Teflon inserts, if he went with the twisted screw he could have done a knife edge tip to get maximum efficiency and tighter tolerances.
@@snitchgaming4486 but idk how well the 3d printed plastic is able to withstand those forces in the screw shape. The lobe shape is more resistant to deformation
This is exactly why I love your channel bro, you can do all the experiments I only can dream of!
YES. I need to see this work with the new motor. It blew my mind that it's actually starting to sound like a real blower!!
This is really awesome, would be amazing if you could get it close to full scale. Then hit up Jayztwoscents and see if you could combine this with his motor pc case idea. I'm sure it would give him the boost to restart that case mod and you two would make an awesome colab.
YES!
That's actually a great idea
I think the design just needs to be a lengthened to fit like a 120x240mm (or 360mm) radiator mount.
I thought of Jay immediately too. It would need to be scaled up, but this would be just the thing to resurrect that build.
YES!!! Jay would be right into this mod.
To get tight clearance: print slightly oversized and cover with valve lapping compound. Clean with tide POWDER detergent.
Basically my thought lol. If it's rubbing, just put some compound in there and let it run and it'll take care of itself...
This. I’d recommend graphite and/or teflon powder as well.
the surfaces will get hot and not really sand down. they will just smear unless you can keep it cool.
@@cbrunnem6102 manually crank it to reduce rpm based heat maybe?
@@buildingsalvage id say just let the 1000 rpm motor run for a while. thats really not all that fast and prolly wont heat it up too much. just a theory though.
As a PC enthusiast and old school wrench-head, I think this might be one of the coolest endeavors I have ever seen on TH-cam. Keep up the good work! 🤘😁👍
Man I’m glad this showed up in my recommended feed, I clicked on this video so fast! It’d be cool to see you add a butterfly valve on the intake scoop that’s controlled by a small servo so you could open and close it just like a real blower intake. That looks so dang cool! I definitely subscribed to keep up with your awesome content. Much love from Texas!
My man is literally out here pushing the boundaries of manufacturing. Well done!
Reminds me of a guy who would do that on the regular in the '90s
Junk maybe
"Lemme know if that's something you wanna see"
Yes we do want to see you make a thicker mount and absolutely yeeet it!😂
Also, maybe provide dimensions for the screw fans so people can design different variations that fit in the casing and maybe improve the noise and airflow of the supercharger cooler, would be interesting to see what ingenuity people can bring to this and see if we can get the thing to climb the leader board
This 👆
Rotor Showdown? 🤔 what about that?
this would be super cool
This was by far the coolest smoke test yet! Twisted Turn Rotors for sure!
I have never seen your channel before but im so glad this popped up! two things i love in the world, cars and pc's.
if you want more static pressure try a twin screw blower instead of the roots blower, or go for a procharger design, basically a crank powered turbo.
Absolutely subscribing and cant wait for more!
I love the concept of having a throttle for your CPU cooler. You could race against the thermals.
The FPSs are going down? Give it more juice.
she's giving us all she's got captain
Roots blowers (positive displacement blowers) don't compress air, they just speed it up, it's compressed when it's rammed into the intake manifold. All roots blowers have an optimal Delta P where the rotors can no longer prevent sufficient air from leaking back into the blower and just getting heated up.
Twin screw actually do compress air as it's pushed through the twin screw.
For what it's wroth, modern roots blowers have an ablative coating that breaks in so they actually kind of touch. The better the seal, the more efficient the blower and higher the delta P. It's not the only factor, rotor geometry and size are also a factor. Most blowers have a coupler between the snout drive and the rotor pack that is designed to break in the event that the rotors ingest something that jams them to minimize damage.
I have a blown car that runs on alcohol :D
Edit, if you had either Gemini gears or helical gears will help reduce the noise, but in your case I think a lot of the noise is from the rotors kind of clunking around.
They actually do compress air. PD engineering drawings actually calculate the pressure zone when determining the compression chamber volume.
The OE coupler in my eaton m62 self destructed after 190k hard miles
This seems like a lot of buzzwords that are adjacent to being correct.
I read your whole comment thinking "oh man this is a backyard warrior who understood about 10% of an internet article" and then I saw your last comment about having a blown car on alcohol and knew I nailed it.
BTW, by your reasoning nothing builds pressure but rather speeds it up. actual answer, a blower does compress air. it has a flow vs pressure chart at several speeds. if an engine has massive valves or tons of lift, the blower will flow more air at less pressure assuming everything else about the two cases are the same. point being, no compressor can build pressure without some restriction.
lastly, compressors some times slow the velocity of air.
@@cbrunnem6102 _" actual answer, a blower does compress air"_ Incorrect, a roots type blower is simply an air pump. It _does not_ internally compress the air which is why they have fairy poor efficiency for supercharger applications. Conceptually it's similar to a gear style pump, which also doesn't compress anything.
A part two would be much appreciated. I love this outrageous design.
of course, I wanna see more of this, this is pretty awesome!!!
Put your gears in double shear with another bearing behind them, it will help quite a bit with the high speed stability.
The meshing of the gears is one of the most important parts of a supercharger. Having the timing off by even a little bit can cause catastrophic failure in the rotors.
This design is so great! I want to see how it performs against the others in the full fan test at a higher RPM, too! I so badly want to see the smoke test at full throttle!
Will definitely watch the follow up, great design
I would love to see more of this. I myself have designed a blower that supported a 120mm fan to suck in air with it still looking like a super chager blower. But you just took the next step
Yes 1000% want to see more of this! Would love to see this tested with different parts to see what does the best. Blower showdown.
I just bought a twin screw Whipple Supercharger for my 90's Plymouth minivan last week. Wish I'd known then that I could have saved thousands of dollars by 3D printing it myself...
Well now that you have it you might as well test how well it cools a pc 😂
☝️ I vote for what that guy said...
And ill second it. You have to do it now. The people have spoken... Seriously a fuckin minivan...
Also, how do you mount the damn thing, does it just chill in the cab coming out the top of the dog house?
@@zmaster1481 minivans have very little engine compartment space front to back, left to right. But, they have a ridiculous amount of room vertically. I put a 2010 Dodge Charger V6 stroked out to 4.0L and an AWD transmission into my van, that engine is about twice the external size of my original engine. Theres about a foot between the top of the engine and the hood, and 2 feet from the transmission to the hood.. I could definitely fit another engine on top of the transmission and a transmission on top of the engine.
I would say bulk up the motor mount and increase the size of the whole unit so the opening at the bottom fully covers the 240mm rad (it is the right ratio). Also, print a very, very slight interference fit and wear it in, then grease the gear teeth and the rotors lightly to seal better and not wear too fast. That should be a killer setup.
Love this concept. Would love to see tighter tolerances on the rotors and a mount made for the RC motor. That would be insane.
Yes, I want to see that! Also, try mounting it so that the motor gear meshes with the drive gears. That may provide a better functionality for the setup.
considering the outlet hole you have on the blower you might want to turn it sideways on the radiator or create an interface plate with vanes to guide the air across the entire radiator area instead of just that narrow path in the middle. on top of that it would only be fair to spin the blower a 3000rpm just like the noctua fan.
This blower idea is too cool! As a car fan I would love to have a blower style intake on my pc to make it super cool. Definitely keep this idea going! Bigger Motor!!! :)
this has me brainstorming ideas for a hotrod themed build for my next pc, gonna have to play around with some ideas in my head see what i can come up, imagine that blower scaled up to run a 360mm and house a couple noctua's lol
The mount broke because you're essentially backing off that screw in the main rotor which puts pressure back on the motor itself inside the coupler. Try to move the motor mount to the other side or use reverse threaded screw on that rotor so that you tighen it with the rotation of the motor. Hope that makes sense :)
Then it would basically do the same thing but backwards? I think the mounts need to be stronger and set up differently
Man I'd love to see a flap on the intake, like the one on a car blower (the one that regulates how much air can enter). I think it could even be tied to the cpu temp, maybe together with the motor speed :D
He could tie one of those servos to it from the RC car.
It's called a bug catcher
Butterfly valve usually
I always hated how quiet my PC was, now whenever I'm gaming I get to hear that satisfying whine as the turbos spin up!
(yeah yeah, I know it's a super not a turbo)
Exactly what the internet is for, finding you videos that blend your childhood and your dreams. Yes!
Of course we wanna see!!!!! This is amazing!!!
That looks so cool, literally!
But did anyone else flinch at the cracking engine mount, engine pulled off and the start with loose bits still attached?
Looking forwards to see the different ideas and modifications on the original concept!
Major Hardware + car stuff?
Now THIS I like. 😁👏
Very cool! Would love to see this taken to its most optimized configuration!
Hey man I have been watching ur videos for a bit and lemme tell you, you've earned my sub! Keep up with the amazing content!!
I would love to see a twin screw version, a better motor, and a tighter fitting (but smooth) design-as other comments suggested using a lapping compound and letting it run to have it make itself more efficient (and I'd assume it would make it quieter too.
On top of beefing up the motor mount/joint method I would suggest helical rotors with nylon seal strip along the outermost edge of the lobes like they use in real life superchargers. I would actually suggest using plastic welding strips as they are cheap and easy to find on amazon, etc.
The helical lobes combined with the seal strips would make both air delivery smoother as well as reduce rotor induced vibration as the lobes would be resisting the motor equally at all angles instead of just two like with the straight cut lobes. using the nylon would also dramatically reduce the contact patch size along with the ability of air to sneak past the rotors like I imagine it would be doing in the current iteration.
Worm gears were a mistake. Those are driven from a worm screw. That's why it looked like they were trying to walk apart.
Needed regular gears.
Very cool though.
Herringbone would've been quieter
Thrust bearings and/or pulleys would also be needed.
@@anonymousarmadillo6589 Yeah, I like to lightly centre cut herringbone, leaving pockets to maybe hold some grease and gather particles.
@@GBCobber that's pretty smart
I'm at a loss as to why anyone would choose a worm gear for a spur gear application.
its amazing to see per nilsson, talking about pc fans and airflow.
Just found your channel and decided to subscribe, love the content so far
Just needs working valves now for the hood!
squeezing more out of the bearings and seals is tough but there are ways . Greasing the bearings with a performance grease and lube the gearing and blower with graphite powder based grease. everything will move a bit smoother and seal just a bit better depending on the powdered grease.
Dude those moving parts produce so much heat I think running this thing for a couple hours it's gonna melt
Bro I thought the same thing, that thing sounds dry af. A few hours and all the joints will be loose
@@VaDeR173 grease exists with a purpose
or print moving parts out of
self lubricating carbon nylon
also i was screaming at him the motor needs to be more stably secured.
Cant wait to see the new design. Go for it
So cool! Let's see if FULL POWER!
This is pretty cool! I'd definitely like to see one or two more iterations of this. Maybe doing a twin screw or even just twisted roots would help push the air towards the back of the housing better. Also I just think it would be cool to see it fit onto a 240MM radiator properly. Finally, superchargers are designed to run at a higher rpm than the crank of a motor, what would a 240MM supercharger with a 10k rpm motor do?
Decibel budget ? Yes.
Be careful when you're playing with high RPM, your eyes and teeth won't stop a metal rod flying at this speed without harm.
Nice video as usual
DO IT DO IT! waiting for the supercharger working full potential🤞
Yeah first time viewer here and I’m definitely down to see this thing at peak performance. I subscribed and liked the video.
Very cool! I'd like to see this go further. Stronger motor mount, twin screw, tighter tolerances, etc. Air flow testing with the brushless motor would be pretty interesting.
Put butterflies in the scoop and run it to a servo splitter for the esc, so when you rev it, it opens up! Also could you run a program so it turn on like a computer fan when it gets to temp?
Servos and PWM fans use the same type of signal, I don't know if they're actually compatible but I wouldn't be surprised if you could just drive a servo or ESC directly off a 4 pin fan header. Worst case, it'd be trivial to make a little microcontroller board to convert between the two.
Yes, of course I want to see the full throttle performance!
That sounded epic with the high rpm motor
Maybe a thrust bearing of some kind at either end of the Rotors would help with noise and movement. Also just lubrication of some kind incase of contact
Lubrication for the gears isn't a bad idea, maybe silicone grease. Any lubrication inside the compressor housing would get thrown out and into the radiator.
Deep groove ball bearings can handle thrust loads up to 50% of their radial load rating. No need for seperate thrust bearings.
Superchargers really excell at static pressure, the thicker the radiator you can bolt it to the better
And heck yes we would love to see some different blower types tested!!!
Yep this should be able to produce 100x the static pressure of a regular fan. So it should be able to push some serious airflow trough the thickest and densest of radiators.
Frick yes I want to see it revived! It sounded more like a proper supercharger fully spooled up! I want to see the airflow
Suggestions:
Center mount the motor and use a toothed belt. With proper tension this will give better energy transfer than gears. You should be able to print the belt from TPU.
Also, if you are wanting to move air more so than compress it you might consider some hybrid design, like a linear blower wheel for the impellers.
Absolutely would love to see it with different rotor designs and even (I may be stretching things here) a higher rpm motor.
Love the content, keep up the great work!
Edit - and just after I post, out comes the motor. 😂🤣
Nah, this is a very counter intuitive design. Blower motors don't flow much air and are designed to create pressure. The faster you spin it, the greater the heat will be generated. Ironically, Roots based chargers are the least efficient designs.
Great Project!! I would sugest a belt system instead of gears to reduce the noise and also the Motor support clearly needs some redesign and reenforcement not only becausa it broke but was way too wabbly.
The people have spoken, we want part 2 with reinforced motor mounts. This thing is so dope ! 😅👍
Yess yesss yesssss all the yessss. Want to see more. Ad it sounds epic with the more power.
I'd love to see you do a "throttle plate" in that intake scoop and somehow have it close when a PC is off and have it open when PC turns on!
Get really fancy and have the throttle plates rotate open as the RPMs increase. ;)
@@JCHoefer damn thats a good idea, should be possible by using the output from fanspeed controllers and adjusting the flaps accordingly.
This is completely awesome. I love superchargers.
I'd love to see twin screws, I think they'd be more efficient.
It seems that the motor mount could use a few more arms for stability, it's vibrating around a lot, which is inefficient and could lead to failure. (HA, wrote this before the motor swap)
Didn't know about this type of geared motor. It would be perfect for a future project I want to do. Your link to the motor is the inserts.
I so want to see this super charger work, bring us part 2 please!!!
respect for the wera tools :) love them as well.
Since this channel is all about comparing things, gigidy, I would like to see which 3D printed “compressor” screw type works slightly better than the others.
This would be cool to continue different designs with.
Maybe you can find a way to adapt the slip clutch from the rustler if you want to keep using the mamba, or make your own step up gear box so the 1000rpm is more effective.
This is so awesome, I've never seen anyone do this. I've got a supercharged drag bike with a straight 2 lobe roots blower, as well as a PC I built myself.
I have a Kraken Z73 liquid cooler that I'm about to install on my PC, but now you're givin me second thoughts.
It would be cool to see a supercharger integrated with the liquid cooler radiator. My bike is mechanically fuel injected running on methanol and I have a small pipe that runs from the throttle manifold to the top of the trumpet (supercharger inlet). This sprays a steady stream of methanol into the blower to keep it cool while the throttle is open.
Don't know how much functionality this would have on a PC supercharger, or if it's possible. But it's an idea anyways.
"let me know if you want me to do it"
Bro, my man. Perfect working fan design are not the only one I want to see in you channel. Design something crazy or stupid and see if it work are the other reason I subscribe you channel.
roots blowers were designed to do exactly this, so its great to se one at this scale. with some refinement it would be ineresting to see how good yours can get, it would also be cool to see one stretched out on a 240 mm or even a 480mm radiator. i bet it would work swimmingly if you have the time.
If only you made this with clear housing so we could see the smoke move through….would have been so cool
Yup. I'd like to see more of this 😁
Get it done! You know you want to try it!
I think that you made the right choice with the charger type. Generally a twin screw compresses air. Meanwhile the roots just shoves as much air as possibble and it ends up compressing due to the excess of air, and since the pressure doesnt matter here its better.
Just wanna point out that there is no physical difference between "compressing" and "shoving as much air as possible until it compresses". They are the same process. Yes a screw type squeezes the air between the screws whereas a roots type moves the air in a comparatively large channel around the outside, but the volume opens up again once the air leaves the blower and enters the intake runners. From the perspective of the engine, or in this case a radiator, the two processes might as well be identical
You cannot have compression without displacement.
Now I’m curious to see how a 3D printed turbo would compare. You would need a very high gear ratio to get the rpm required to push enough air. Would love to see more complex fan designs or different types of forced induction!
Yeah, i think he just entered a new league when it comes to air movement devices 😛
Obviously it would be mandatory to have a functional blow off valve 😁
@@ferrumignis Ofcours, cant have a turbo without that.. 3d printed ofc. hehe
Love how it sounded like a true blower on that full speedish run at the end. Very cool. Need to find a way to grease those gears or lube them some how. Would work better. Also if you design the rotors to have a seal at the edge of each rotor it would move much more air. Few small mods and that thing will be killer.
As a car guy and a pc guy I LOVE THIS. I think I may print this for the custom Rog Z11 I’m building.
The reason it didn't work to well is because root blowers have gaskets on the end of the lobes to keep air from leaking out and around
He could make a TPU sleeve for one side to make it seal up better.
I suspect the large clearances on the rotors and low RPM were bigger handicaps.
@@ferrumignis the gaskets help close up the clearance problem better and then we will really see if it had enough speed or not.
If that motor has a lot of torque then a big gear on the end of that driving a smaller gear attached to the blower could get it going even faster. Although you may need something more durable than 3d printed plastic to handle the speed. In addition more precision is needed when you start adding more gears or else it will try and run away from you and shake itself apart.
What I don't get is why no one seems to grease gears. Specially when it comes to speed it not only helps with friction but should help smooth it out a little bit. Plastic gears still suck but grease helps quite a bit.
@@MidnightMarrow wouldnt the open design of the gears shoot grease all over the room? doesnt seem like that much of a good idea to me.
this man has come a long way
As a car guy, this is awesome! Keep improving it and send it!
I'd use a belt to transfer power from the motor. It should deal with any misalignment in the assembly. Also, you could use RC spur gears to synchronise the rotors, they are quieter and more precise.
A timing belt and pulleys would also provide the synchronization with much less noise, but I realize he was trying to 3D print as much as possible. Still, it would be nice to eliminate the issues that we can easily eliminate using common, cheap parts that hobbyists would likely have or could obtain.
time to put a train blower in my pc
This is awesome. Make a more robust one please... And twin screw as well
I went to diesel tech school and I worked on my fair share of roots blowers for old Detroit Diesel engines, this looks almost identical to those, (even the color of the housing is close) but I think something you are missing that might increase the air pressure and in turn increase the output is by lubricating the rotors, the oil acts as a seal more air can be pushed in without having any leaks, might not be much of a difference but that’s something the real blowers have depending on application, you could also run a turbo into the blower to get more airflow. Cool build I’d like to see what else it can do, and also it sounds shockingly similar to a real roots blower which are loud and obnoxious, impressed at how quiet this is
I REALLY want to see that super charger at full speed. It was way too much potential to just leave it with a 1000 RPM motor.
Another need that I never knew I had: wanting to see a 3d printed, supercharger-style, computer cooler using an absurdly powerful motor.
Sign me up!
YES FULL POWER AND DIFERENT DESIGNS!!
bro you genius work thx