@@solid477 we could determine velocity if we knew the area of the tube at the point it's being measured. We could then infer which fan has more static based on the velocity. Higher velocity, higher static pressure. Although, we wouldn't know the exact amount of static. I feel a manometer should be added in season 6. It would tell us just about every we need to know if that data point was added in. The only other thing I could think of would be both radiator on and off testing that way we could infer both and have some type of score based on all the values. Something similar to torque test channel but for fans
@@solid477 pushing through a radiator first would limit the CFM proportionally to the static pressure. Essentially season 5 will be won by the highest static pressure fan even if static pressure isn’t what’s being directly testedz
@@solid477 RPM is far less important, it's rare to find a constant RPM fan these days anyways, different blade designs will have differing optimal RPM ranges, these tests are running the blades at what's optimal and hypothetically one could adjust their fan curves to match what's optimal, these tests are for peak performance, not performance per normalized variable; it'd help to educate yourself on the topic before you start debating moot points with no logical basis. Also don't expect good testing methodology from this channel, it's entertainment and not educational for a reason, case in point is testing CFM after using a restrictive component that's better used with higher static pressure fans, another case in point being how long it took to even get a gasket on the fan housing itself.
It seems there are a few things that make a winning fan. 1. Air-foil blade cross section 2. broken outer edge of the fan blade to avoid turbulence, either through rough cut outer edge, wing-tip design or guide. 3. Not to few, and not too many blades, Too many blades cause speed to drop, too few can't move enough air 4. larger blade area. 5. Optimal angle of attack for the speed (considering blade area and number of blades) 6. Low Weight
1-5 yes, but I'm not sure about the weight. A heavier fan has more angular momentum so it takes longer to spin up, but once a constant speed is reached I don't see why it would be a factor.
@@gangadin2873 I'm the designer of the gear ratio, I think weight only affects the accelleration, not the max speed. it is true that also affects bearing efficensy but it is not notable
@@gangadin2873 Bearing efficiency may be a factor, but unless we're talking about a 400g fan or something I think it's marginal. If you can make a small aerodynamic improvement that also makes the fan a bit heavier the answer will 99% be to do the change at the cost of weight.
@@antoniobruno2947 Glad to talk to you. Just a small suggestion on the 3D printing for your fan, can you try printing the fan vertically instead of horizontally? I think the 3D printer artifact of striations that currently appear on the surface of the blades, if utilised on the leading and trailing edges of the fan blade can produce a more quiet fan. Also if the wider blade surface should be smoothened and free from striations that would help
As soon as I saw the airflow visualization, I knew Ratio was going to be a good performer. Top 5 easily. BUT. Congrats on #1. I'm sure someone in the business will reach out for that design.
I'd love to see a Best Of The Best series, where all the best performing fans are printed again at the best possible quality (maybe in resin?) to see how they all stack up at their peak performance
Definitely, I believe that the print lines have an effect on true performance and that may be why they aren't as good as Noctua. Maybe some place changes will happen as the print lines could possibly be helping some of the fans.
That Gear Ratio was nice! I also have to say that I'm enjoying these fans with a bit more restraint and trying to get back into stock dimensions. Really pushes the engineering. As they say, limitation breeds creativity.
This is the best community engagement challenge concept on YT. You'd think fans all the time would be boring, but it really isn't. I can't click on the thumbnail fast enough when i see it.
That sun thing on Uruguay's flag is called the "Sun of May." The winners of the world cup, Argentina, also has a Sun of May on it. So the submitter wasn't wrong... completely.
Great series! A decade (or two) ago when I was into supercooling and watercooling, finding a single fan that performed with prefect balance flow/noise was extremely rare. They make a lot more fans now, but finding that perfect one is still hard. You are taking it to the next level and it's amazing!
I had to pause the video at 5:01 because i can already tell the gear ratio smoke test is gonne be excellent... as a side note, whatever you did to get that one thin wispy smoke trail to lead the billowing cloud into the fan - do that more please! Seeing a psuedo-streamline of air being sucked into the fan, and ESPECIALLY seeing the tight curl of air expelled out the back in a single line is just so satisfying.
Can't believe I missed an episode of the Fan Showdown! Way to go Antonio with the Gear Ratio. The vortex coming out the back was amazing. Crazy how good Noctua's design really is. I wonder if getting rid of the extra mass of the center bump and a few other little tweaks could alter the performance of the Gear Ratio. Excited to see the MIT design up next!
Gear ratio's flow output looked real, real good. Just goes to show you that a proper airfoil will likely be the name of the game here, combine that with an angle of attack that doesn't cause the airfoil to stall out and you'll beat all other fans.
I’m Antonio, the designer of the gear ratio. When I designed my fan I didn’t consider that I needed to improve the static preassure because of the radiator. In my tests, (without the radiator) the gear ratio performed way better than the a12 x 25, shoul I redesign it to optimize static preassure?
Fuck yeah, Antonio! A fan designed by a 16-year-old KID came in 1st place! Please, don't take the term, "kid," to be a sleight. The next generation is always better than the previous, and this is as it should be. You're just someone who demonstrated it. Well done! That was excellent to see!
@@SiganQ in my testing (without a radiator) my fan was way ahead the A12x25, so I’m looking to improve the statistics pressure at cost of a decrease in airflow. (Sorry for the English)
Much much better this time. You must have went to the bathroom beforehand this time. Also, out of all the tech reviewers on UA-cam, your videos are always the one I'm looking forward to
ooh! my fan is in the competition! 17 blades thick blades did not make a quiet fan and performed kind of worse than i expected. i made a gear fan too, really hopes it has atleast a chance of particepating ing the fan showdown. i have high expectations for that one concidering i did so much reasearch into making it!
I have five of be quiet!'s (apparently no caps in their name) Shadow Wings 2 140mm fans installed in my case. They each cap out at 15db at, apparently, 900rpm. Don't know how that translates into cooling a radiator or card, but they do a pretty good job of keeping the noise down while cooling the case.
2x2. But also, how dope would it be to have just a glam shot of all the fans composited together with different colour channels disabled? Cyan, magenta and yellow together would be dope along with normal.
For better noise reduction you need to polish all those inaccuracy which stays after printing. All edges and all surfaces need to be absolute smooth with those speeds, at which fans are spinning for better performance.
I wonder, if you would print the original design, could you get the same performance of it? Or all of the tested fans have a disadvantage because of 3D printing.
Reprint the ‘Gear Ratio’ with the blades extending into the center of the dome hub. Makes the center area productive. Also add small vortex generators to following edge of blade…. Reduces drag? I think…..
What people seem to miss is the effective RPM of the motor. You need to match the blade pitch with the optimal RPM of the noctua motor to achieve good results.
I'm curious how much of the A12X25's success is due to the material advantage it has over the printed fans and how much is the actual geometry of the fan. I think it'd be interesting to see an exact printed duplicate go head to head with the original fan to find a sort of correction factor for material discrepancies.
This is an excellent idea. As close to a perfect cad model as you can get, but with exactly the same printer settings used for all the fans tested on the show. That would give us a good reference for the potential of some of the top performers, if they were to be manufactured using the same techniques Noctua employs.
Definitely a good point. PLA plastic is a pretty darn dense plastic, so weight is already a big challenge. Add in the limitations of FDM printing and it poses some interesting challenges. One good thing about PLA is that it's one of the most rigid FDM printing plastics around. 🤔
Have you tried printing your own A12 X25? Might run slightly different bring printed with pla instead of molded from the factory. I'm curious if it would stay #1.
can you re-create the a12x25 and print it, and compare it to the actual 12x25? i'd like to see if something about the material or printing affects the performance.
Hi, I'm from Uruguay and the "Korea vs Portugal" flashback made me laugh. I have to admit that the fan looks pretty, so props to the designer! I'm sure the poor performance was expected (still better than our performance during this world cup).
I bet the Gear Ratio would beat the Noctua A12x25 if it was made by Noctua. No offence on the 3D print, but the finish & material they use probably has advantages.
any chance you could add a few off-the-shelf fans to the spreadsheet to give a better impression of how good (or bad) some of these fans perform? Say an Arctic P12, Cooler Master SickleFlow Reverse Edition (just because more brands should make these already), an airflow-oriented fan like the Corsair Air-series, aaand the cheapest RGB fan you can find. I think it would add an extra layer of education to the show! Especially if you add these fans again for a future season that's more airflow focused for example. Maybe have the first episode announce the new testing method and then test these off-the-shelf fans and talk about how things changed compared to the previous season's test setup and what type of fans we might expect to do better or worse! P.S.: Congrats on 222K subscribers. That's my favorite number :) (222 that is!)
Hum... I see the REF is a Noctua fan, what if you made an exact model of that fan and put that to the test? Just to see if the 3d printing part might have some side effect to it. And perhaps use that as a new REF? Love these videos, especially the part with the high music and smoke, always makes me do a quiet little dance
The "Gear Ratio" just needs to be tighter against the fan casing and made of a material which slightly expands to have very low tolerance. Aside from that, it's a winner.
Please print an exact model of the A12x25 to compare what effect layer lines from 3D printing has on the overall performance against its injection moulded counterpart
SUGGESTION: You should have a fun theme/challenge for each season, such as: highest airflow AND lowest nose; or most static pressure when blowing through 4 radiators; or highest RPM AND highest airflow; etc.
Hello! New comer here 👋 Can’t believe UA-cam didn’t recommend your channel sooner! Have been binging through the seasons 😁😁 I do have one request. Could you add a category in the finale for formfactor? I’m genuinely curious if some of these fans that out perform noctua can actually fit inside cases. Thanks again man, you da best 😎👆👉
Do you test sound levels under load on the radiator? If noticed some fans get louder or sound horrible once they are in a pusher setup with a radiator.
Now I really would like to see the Simple 13 redesigned using a wing profile for the blades similar to the one used by the Gear Ratio. Or perhaps the Gear Ratio without the wing profile to the blades. It would be interesting to see just how much of a difference profiling the blades does, both for sound and air speed. It might also show a difference in the RPM of the fan. Perhaps that could be a separate competition. Take a fan design and try to create the best blade profile and pitch for it. I bet those making propellers for airplanes might have some interesting data regarding this.
Would it be a terrible idea to shoot the air from like under or over the fan, but still in front of course, to prevent the smokes direction from effecting the air speed on the back? Or maybe it's just not that much of a difference
I think that the a12 reference might actually retain its spot. At this point, the scuffs etc. on the blades as a result of 3d printing are most likely what keeps them from the noctua's level. I don't know if 7 blades were perfect, but aside from that it looked like the gear ratio incorporated everything I'd think would boost performance and reduce noise, yet it didn't achieve the noctua in either metric. I wonder how much improvement you would gain by attempting to polish the gear ratio until smoothness perfection. I know you can't be polishing each of the blades, but I recommend that at the end of the season you give the winner that treatment, to give it the best chance of beating the noctua.
Sounds like you're new here He's done that before and the results were similar(I think he even used resin) I don't remember the season when he did that sadly.
Blower fans? You are talking about radial fans, right? Basically a good idea, but I think it is better to use case and motor of a commercial radial fan because the casing needs to be spiral shaped, not just a circle with a gap...
I think you should model and print the A12x25 stock fan and compare how much performance is lost due to the quality of 3d printing and other limitations (thickness, weight, etc). I strongly suspect that several of these designs are actually better designs than the stock, but lose some in the printing.
I'm laughing so hard from argentina, resting with the world cup in our country, hahaha love uruguayans though they are our brothers even if they don't like when we win haha.
Antonio on your “gear ratio” stretch your blade tip length so that when you look at the fan straight on you don’t see through as much and slightly thin the material on your aero foil in the blades to keep weight down and rpm up and I think you have a winner 👍
What do you mean with strech your tip length? I think the thickness of the blade is important for the areofoil to work.I’m not worried by the weight of the fan because it only influences acceleration, not max speed. Thank you anyways and sorry for my English
@@antoniobruno2947 so if you look at the Noctua fan the length of the leading edge is fairly long due to the amount of curve starting at the hub and moving towards the edge. I would try and adjust your dimensions on that so the you can make that stretch further and have a more screw design, and make it so when you look through the fan from front to back reduce that by giving the blades more surface area but not to much more so that they still have enough space to pull air through but have more surface to increase the static pressure and potentially more open flow. Just a thought, hope that cleared up my suggestion.
Something I'd be curious about with the fans that are *so* close to the Noctua in performance - what would happen if the fan were printed in a less dense plastic? PLA is significantly more dense than ABS or ASA. Would a lighter fan in ABS or ASA spin faster and push more air? If so, would it be enough to topple Noctua?
A Noctua fan blade replica should be printed out and tested as well. The ridges from the 3d prints could be the difference the gear ratio fan needs to come out on top
You should use incense for the smoke test sometimes. You can put the smoke in specific spots like if the fan has a part in the middle and you want to see what that specific part does. Kinda like the wind tunnels do with the smoke on a stick they move around
me still somehow a little mad that my biplane fan stayed unnoticed, but yes he can't check all (it had literall biplanes on it (yes they are printable at the required scale (biplanes are to be printed separately and then to be put onto the fan hub mount), i managed to print out severall at the size of a regular pre-threadripper cpu heatspreader) i even tried to submit it twice per email+reddit. yet i heard nothing in responce.
That series keeps on giving. I am seriously considering a 3d printer in the coming 48 months. (Moving in Feb after starting a new bus, possibly another move to another continent before 2024). My 2 year old is super into planes, trains, buses, trucks and cars, a prime target for wooden / 3d printed toys. Pimping the aging computer tower with custom made fans would be sick.
Have you tried printing the a12x25 blade to test against? It's like comparing apples to oranges if you don't recreate the original with a 3d printed version. Scan the original and reproduce it.
Hey, the gear ratio looks excellent, I wonder how it would perform if the centre was made to fit inside the frame. Is the A12 still top due to the material used? Did you do a reprint of the A12 at one point or is my memory failing me there. If not that would be a great second baseline test to include.
The trailing edge is pressure optimised, it is almost centrifugally sloped around the back. I think there won't be a similar performance contender unless it uses higher blade count, or some clever high trailing angle.
In all honesty you need to Resin print some of these designs. The flow characteristics could be unintentionally deminished due to how rough the current print resolution is.
You could really tell the gear ratio would do great! Just look at the smoke being sucked in. It sucks the smoke from much further away than the other fans.
I would love to see a fan design like an air conditioner condenser fan, since they have a nice blade pitch and few blade numbers (usually 3 blades). Unfortunately I can't design it because I have zero skills to do so, but I would like to see someone doing it!
Smoke test from the gear ratio was impressively clean! Well done Antonio! (edit fixed typo)
It's because the curve shapes inwards and changes the airs "angle of attack"
Would be good for a long case or radiator, not great for a small case
@@rentaspoon219 Do you assume it's not good for a small case, or have you something to show that proves this?
This is amazing. This young adult just killed the competition
Thank you, I think I am gonna redesign a version to improve static preassuse because without a radiator in my testing did a lot better than the a12x25
@@mikeycrackson yes, it is simple, but is the version 31 of the same fan
I think we'd all love to see the creator of the cheater make another one JUST for static pressure. Since S5 is specifically measuring that parameter.
@@solid477 we could determine velocity if we knew the area of the tube at the point it's being measured.
We could then infer which fan has more static based on the velocity. Higher velocity, higher static pressure. Although, we wouldn't know the exact amount of static. I feel a manometer should be added in season 6. It would tell us just about every we need to know if that data point was added in. The only other thing I could think of would be both radiator on and off testing that way we could infer both and have some type of score based on all the values. Something similar to torque test channel but for fans
@@solid477 pushing through a radiator first would limit the CFM proportionally to the static pressure.
Essentially season 5 will be won by the highest static pressure fan even if static pressure isn’t what’s being directly testedz
@@solid477 RPM is far less important, it's rare to find a constant RPM fan these days anyways, different blade designs will have differing optimal RPM ranges, these tests are running the blades at what's optimal and hypothetically one could adjust their fan curves to match what's optimal, these tests are for peak performance, not performance per normalized variable; it'd help to educate yourself on the topic before you start debating moot points with no logical basis. Also don't expect good testing methodology from this channel, it's entertainment and not educational for a reason, case in point is testing CFM after using a restrictive component that's better used with higher static pressure fans, another case in point being how long it took to even get a gasket on the fan housing itself.
17-blade is quintessentially quiet like MSI Hawx fans, surprisingly. It was enlightening 50 dBA might sound quieter than 48 dBA Gear Ratio.
@@David_Poole god damnit use the correct terms, velocity is not it, this is why the industry is so fukky
the fact that the gear ratio was built by a 16 year old is soo commendable. Good job Antonio!!!
Thx
Are you saying being young makes you stupid? As a young person I can confirm that.
Thanks for putting the 4 smoke comparisons together! Really good visual reference. 👌
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It seems there are a few things that make a winning fan.
1. Air-foil blade cross section
2. broken outer edge of the fan blade to avoid turbulence, either through rough cut outer edge, wing-tip design or guide.
3. Not to few, and not too many blades, Too many blades cause speed to drop, too few can't move enough air
4. larger blade area.
5. Optimal angle of attack for the speed (considering blade area and number of blades)
6. Low Weight
1-5 yes, but I'm not sure about the weight. A heavier fan has more angular momentum so it takes longer to spin up, but once a constant speed is reached I don't see why it would be a factor.
@@ska042
bearing efficiency will still be impacted by fan weight. A lighter fan is better.
@@gangadin2873 I'm the designer of the gear ratio, I think weight only affects the accelleration, not the max speed.
it is true that also affects bearing efficensy but it is not notable
@@gangadin2873 Bearing efficiency may be a factor, but unless we're talking about a 400g fan or something I think it's marginal. If you can make a small aerodynamic improvement that also makes the fan a bit heavier the answer will 99% be to do the change at the cost of weight.
@@antoniobruno2947 Glad to talk to you. Just a small suggestion on the 3D printing for your fan, can you try printing the fan vertically instead of horizontally? I think the 3D printer artifact of striations that currently appear on the surface of the blades, if utilised on the leading and trailing edges of the fan blade can produce a more quiet fan.
Also if the wider blade surface should be smoothened and free from striations that would help
As soon as I saw the airflow visualization, I knew Ratio was going to be a good performer. Top 5 easily. BUT. Congrats on #1. I'm sure someone in the business will reach out for that design.
Thank you, I’m still improving my design
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I'd love to see a Best Of The Best series, where all the best performing fans are printed again at the best possible quality (maybe in resin?) to see how they all stack up at their peak performance
Definitely, I believe that the print lines have an effect on true performance and that may be why they aren't as good as Noctua. Maybe some place changes will happen as the print lines could possibly be helping some of the fans.
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That Gear Ratio was nice! I also have to say that I'm enjoying these fans with a bit more restraint and trying to get back into stock dimensions. Really pushes the engineering. As they say, limitation breeds creativity.
This is the best community engagement challenge concept on YT. You'd think fans all the time would be boring, but it really isn't. I can't click on the thumbnail fast enough when i see it.
Yeah, me too. In fact the very first major hardware video i've seen was fan showdown episode 3
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That sun thing on Uruguay's flag is called the "Sun of May." The winners of the world cup, Argentina, also has a Sun of May on it. So the submitter wasn't wrong... completely.
A nadie le importa Argentina, son metidos en todo lo que nombran a Uruguay, siempre tienen que aparecer.
Uruguay, Argentina, same thing? :D *runs away before an angry mob of South Americans hunt me down :D *
@@eTiMaGo I will find you and I will fight you
And without the Sun there is nothing
@@wobblysauce Europa and Enceladus: Are we a joke to you?*
*Assuming they harbor life in their subterranean oceans.
Great series! A decade (or two) ago when I was into supercooling and watercooling, finding a single fan that performed with prefect balance flow/noise was extremely rare. They make a lot more fans now, but finding that perfect one is still hard. You are taking it to the next level and it's amazing!
I had to pause the video at 5:01 because i can already tell the gear ratio smoke test is gonne be excellent... as a side note, whatever you did to get that one thin wispy smoke trail to lead the billowing cloud into the fan - do that more please! Seeing a psuedo-streamline of air being sucked into the fan, and ESPECIALLY seeing the tight curl of air expelled out the back in a single line is just so satisfying.
Thank you, I’m trying to improve the static preassure on my design, which is focused on airflow
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Very well done GearRatio! The smoothness of that flow hits good :)
The all 4 at once side by side is super useful for comparison vs 1 at a time
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Can't believe I missed an episode of the Fan Showdown! Way to go Antonio with the Gear Ratio. The vortex coming out the back was amazing. Crazy how good Noctua's design really is. I wonder if getting rid of the extra mass of the center bump and a few other little tweaks could alter the performance of the Gear Ratio. Excited to see the MIT design up next!
Gear ratio's flow output looked real, real good. Just goes to show you that a proper airfoil will likely be the name of the game here, combine that with an angle of attack that doesn't cause the airfoil to stall out and you'll beat all other fans.
The gear ratios air flow was so beautiful!
Thx ;)
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Greetings from Uruguay!
LOVE the 4 part video of the smoke test. That's really cool to give good comparison.
I’m Antonio, the designer of the gear ratio.
When I designed my fan I didn’t consider that I needed to improve the static preassure because of the radiator. In my tests, (without the radiator) the gear ratio performed way better than the a12 x 25, shoul I redesign it to optimize static preassure?
I apologize for my English
Fuck yeah, Antonio! A fan designed by a 16-year-old KID came in 1st place! Please, don't take the term, "kid," to be a sleight. The next generation is always better than the previous, and this is as it should be. You're just someone who demonstrated it. Well done! That was excellent to see!
Thank you, i'm redesining it because i focused more on airflow than on static preassure.
@@antoniobruno2947 I respect that. But don't let perfection be the enemy of good enough :)
@@SiganQ in my testing (without a radiator) my fan was way ahead the A12x25, so I’m looking to improve the statistics pressure at cost of a decrease in airflow.
(Sorry for the English)
@@antoniobruno2947 You shouldn't apologize for speaking in English. It's the only language I know! xD
@@SiganQ I did because I’m non very good at speaking in English, I’m Italian
Man the gear ratio airstream was just so clean impressive !
thanks ;)
The exhaust pattern from the Gear Ratio was super impressive, fantastic modelling.
Thanks, I’m designing a v2 focused on static pressure
@@antoniobruno2947 That's be amazing to see, best of luck!
yes yes yes! great idea with putting all 4 side profile smoke tests on the same screen. it really helps to put things in perspective.
You could also add a smoke test of the a12x25 in the center of the screen for comparison...
The 4-way side by side view was Great!! Please do this every time. Great video as always, Thanks for the content!!
Much much better this time. You must have went to the bathroom beforehand this time. Also, out of all the tech reviewers on UA-cam, your videos are always the one I'm looking forward to
I like the side by side comparison for the smoke test, and the black background is a very nice touch.
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YES URUGUAY PRESENTE
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Heyyyy 🇺🇾 you have fans in uruguay too!! Love your videos
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ooh! my fan is in the competition! 17 blades thick blades did not make a quiet fan and performed kind of worse than i expected. i made a gear fan too, really hopes it has atleast a chance of particepating ing the fan showdown. i have high expectations for that one concidering i did so much reasearch into making it!
if it did get chance to participate it would actually make my next year!
I have five of be quiet!'s (apparently no caps in their name) Shadow Wings 2 140mm fans installed in my case. They each cap out at 15db at, apparently, 900rpm. Don't know how that translates into cooling a radiator or card, but they do a pretty good job of keeping the noise down while cooling the case.
@@laurencefraser i dont know about fans but i dont believe that 15db because thats insanely quiet, even breathing is almost the same
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The 4x4 display of all the fans doing the air test was something i didn't know i needed...
Ikr?? It feels like its made by some satanic ad company that is trying to hex you into buying a new fan.
2x2. But also, how dope would it be to have just a glam shot of all the fans composited together with different colour channels disabled?
Cyan, magenta and yellow together would be dope along with normal.
For better noise reduction you need to polish all those inaccuracy which stays after printing. All edges and all surfaces need to be absolute smooth with those speeds, at which fans are spinning for better performance.
I wonder, if you would print the original design, could you get the same performance of it? Or all of the tested fans have a disadvantage because of 3D printing.
ua-cam.com/video/vsqi6SP0NhE/v-deo.html
@@hellrage777 Thank you.
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Reprint the ‘Gear Ratio’ with the blades extending into the center of the dome hub. Makes the center area productive. Also add small vortex generators to following edge of blade…. Reduces drag? I think…..
What people seem to miss is the effective RPM of the motor.
You need to match the blade pitch with the optimal RPM of the noctua motor to achieve good results.
That’s what I did
I like the new 4 window split screen comparing the smoke test. That's a keeper!
I'm curious how much of the A12X25's success is due to the material advantage it has over the printed fans and how much is the actual geometry of the fan. I think it'd be interesting to see an exact printed duplicate go head to head with the original fan to find a sort of correction factor for material discrepancies.
This is an excellent idea. As close to a perfect cad model as you can get, but with exactly the same printer settings used for all the fans tested on the show. That would give us a good reference for the potential of some of the top performers, if they were to be manufactured using the same techniques Noctua employs.
He has already done that! Search for "I Cloned A Noctua A12x25, Is It Any Good?"
Definitely a good point. PLA plastic is a pretty darn dense plastic, so weight is already a big challenge. Add in the limitations of FDM printing and it poses some interesting challenges. One good thing about PLA is that it's one of the most rigid FDM printing plastics around. 🤔
@@Stonos22 He didn't much testing and it actually was _slighty_ worse.
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Have you tried printing your own A12 X25? Might run slightly different bring printed with pla instead of molded from the factory. I'm curious if it would stay #1.
Gear Ratio's smoke output is amazing!
Thx
can you re-create the a12x25 and print it, and compare it to the actual 12x25?
i'd like to see if something about the material or printing affects the performance.
I like how you become the 3D printed fan UA-camr lets people try out their designs
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A giant episode of all those fans you got sent would be pretty interesting. How one persons designs differ from each other in terms of performance?
You want him to print like 100 fans for one video and test them, for one video... thats gotta take a year at least
@@mainn0606
Maybe not one video but it's own spreadsheet would sure be interesting
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Many of these people who make their fans are lairs, and the folders are likely empty.
Hi, I'm from Uruguay and the "Korea vs Portugal" flashback made me laugh. I have to admit that the fan looks pretty, so props to the designer! I'm sure the poor performance was expected (still better than our performance during this world cup).
I bet the Gear Ratio would beat the Noctua A12x25 if it was made by Noctua. No offence on the 3D print, but the finish & material they use probably has advantages.
Thank you
any chance you could add a few off-the-shelf fans to the spreadsheet to give a better impression of how good (or bad) some of these fans perform?
Say an Arctic P12, Cooler Master SickleFlow Reverse Edition (just because more brands should make these already), an airflow-oriented fan like the Corsair Air-series, aaand the cheapest RGB fan you can find.
I think it would add an extra layer of education to the show! Especially if you add these fans again for a future season that's more airflow focused for example. Maybe have the first episode announce the new testing method and then test these off-the-shelf fans and talk about how things changed compared to the previous season's test setup and what type of fans we might expect to do better or worse!
P.S.: Congrats on 222K subscribers. That's my favorite number :) (222 that is!)
Hum... I see the REF is a Noctua fan, what if you made an exact model of that fan and put that to the test? Just to see if the 3d printing part might have some side effect to it. And perhaps use that as a new REF?
Love these videos, especially the part with the high music and smoke, always makes me do a quiet little dance
The "Gear Ratio" just needs to be tighter against the fan casing and made of a material which slightly expands to have very low tolerance. Aside from that, it's a winner.
In my testing I also tried a diameter of 111 instead of 110.
The performance were identical so I used 110 as he said to do
Have you printed a n A12X25 to see if the filament vs injection molded fan makes I difference?
I liked the additions of video footage during the sound test, and the 4-up comparison of the smoke test
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These montages, LOVE IT!
The shot of ALL the fans with their names next to them is 10/10. Please do that every time!!!
Does anyone know - has Noctua ever officially (or unofficially) reacted to the fan showdown?
That airflow on the gear ratio! 😍
I think you should 3d print the a12x25 to see what effects layer lines and inconsistencies have on it
Awesome ep. loved the Uruguay fan.
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Please print an exact model of the A12x25 to compare what effect layer lines from 3D printing has on the overall performance against its injection moulded counterpart
SUGGESTION: You should have a fun theme/challenge for each season, such as: highest airflow AND lowest nose; or most static pressure when blowing through 4 radiators; or highest RPM AND highest airflow; etc.
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Hello! New comer here 👋 Can’t believe UA-cam didn’t recommend your channel sooner! Have been binging through the seasons 😁😁
I do have one request. Could you add a category in the finale for formfactor? I’m genuinely curious if some of these fans that out perform noctua can actually fit inside cases. Thanks again man, you da best 😎👆👉
Also, you got a website tracking the rankings and cad files?
is the noctua baseline, 3d printed or oem??
Time for the return of the T33 MK III. Ultimate showdown A12x25 vs T33 vs Gear Ratio. Maybe throw in the Simple 13 for fun too
It would be nice to see the gear ration smoke flow at slow motion :D
Do you test sound levels under load on the radiator? If noticed some fans get louder or sound horrible once they are in a pusher setup with a radiator.
Are the fans suited for static pressure?
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Now I really would like to see the Simple 13 redesigned using a wing profile for the blades similar to the one used by the Gear Ratio. Or perhaps the Gear Ratio without the wing profile to the blades. It would be interesting to see just how much of a difference profiling the blades does, both for sound and air speed. It might also show a difference in the RPM of the fan.
Perhaps that could be a separate competition. Take a fan design and try to create the best blade profile and pitch for it. I bet those making propellers for airplanes might have some interesting data regarding this.
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Would it be a terrible idea to shoot the air from like under or over the fan, but still in front of course, to prevent the smokes direction from effecting the air speed on the back? Or maybe it's just not that much of a difference
I think that the a12 reference might actually retain its spot. At this point, the scuffs etc. on the blades as a result of 3d printing are most likely what keeps them from the noctua's level.
I don't know if 7 blades were perfect, but aside from that it looked like the gear ratio incorporated everything I'd think would boost performance and reduce noise, yet it didn't achieve the noctua in either metric.
I wonder how much improvement you would gain by attempting to polish the gear ratio until smoothness perfection.
I know you can't be polishing each of the blades, but I recommend that at the end of the season you give the winner that treatment, to give it the best chance of beating the noctua.
Sounds like you're new here
He's done that before and the results were similar(I think he even used resin)
I don't remember the season when he did that sadly.
@@rhaven090 not new, I have just been out for a couple of seasons so that's probably when I missed that.
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Idea for S6 - cut a hole in the side of A12x25 frame, print two 12x12 platates with cutouts in the middle and test BLOWER fans :D
Blower fans? You are talking about radial fans, right? Basically a good idea, but I think it is better to use case and motor of a commercial radial fan because the casing needs to be spiral shaped, not just a circle with a gap...
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Fan designers need to give that kid a job. Holy moly!
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I think you should model and print the A12x25 stock fan and compare how much performance is lost due to the quality of 3d printing and other limitations (thickness, weight, etc). I strongly suspect that several of these designs are actually better designs than the stock, but lose some in the printing.
I'm laughing so hard from argentina, resting with the world cup in our country, hahaha love uruguayans though they are our brothers even if they don't like when we win haha.
It would be neat if you did a video of 1 fan design, but with various blade counts to show if/where the point of redundancy is reached.
At the start of the video, the Gear Ratio also looks like a simple design, but one that's tested and adjusted to get optimized.
Thank you, that’s what I did!
Episode 3? I have 2 other episodes to watch😁 and need to put the bell on again
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Wasn't expecting the simple 13 to get beat that fast
what if one was to print gear ratio for a delta fan hub?
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Antonio on your “gear ratio” stretch your blade tip length so that when you look at the fan straight on you don’t see through as much and slightly thin the material on your aero foil in the blades to keep weight down and rpm up and I think you have a winner 👍
What do you mean with strech your tip length?
I think the thickness of the blade is important for the areofoil to work.I’m not worried by the weight of the fan because it only influences acceleration, not max speed.
Thank you anyways and sorry for my English
@@antoniobruno2947 so if you look at the Noctua fan the length of the leading edge is fairly long due to the amount of curve starting at the hub and moving towards the edge. I would try and adjust your dimensions on that so the you can make that stretch further and have a more screw design, and make it so when you look through the fan from front to back reduce that by giving the blades more surface area but not to much more so that they still have enough space to pull air through but have more surface to increase the static pressure and potentially more open flow. Just a thought, hope that cleared up my suggestion.
Something I'd be curious about with the fans that are *so* close to the Noctua in performance - what would happen if the fan were printed in a less dense plastic? PLA is significantly more dense than ABS or ASA. Would a lighter fan in ABS or ASA spin faster and push more air? If so, would it be enough to topple Noctua?
The mass of the fan doesn’t affect the max speed, but only the acceleration.
I hope this series never ends
I designed a static pressure fan all the way back in season 1, I hope it makes it into this season!
That Thomas clip was gold!
A Noctua fan blade replica should be printed out and tested as well. The ridges from the 3d prints could be the difference the gear ratio fan needs to come out on top
He already did it, no big difference
Hey, please try the procharger with the bladeless! 😂 Would love to see it
You should use incense for the smoke test sometimes. You can put the smoke in specific spots like if the fan has a part in the middle and you want to see what that specific part does.
Kinda like the wind tunnels do with the smoke on a stick they move around
me still somehow a little mad that my biplane fan stayed unnoticed, but yes he can't check all
(it had literall biplanes on it (yes they are printable at the required scale (biplanes are to be printed separately and then to be put onto the fan hub mount), i managed to print out severall at the size of a regular pre-threadripper cpu heatspreader)
i even tried to submit it twice per email+reddit. yet i heard nothing in responce.
That series keeps on giving.
I am seriously considering a 3d printer in the coming 48 months. (Moving in Feb after starting a new bus, possibly another move to another continent before 2024).
My 2 year old is super into planes, trains, buses, trucks and cars, a prime target for wooden / 3d printed toys.
Pimping the aging computer tower with custom made fans would be sick.
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Have you tried printing the a12x25 blade to test against? It's like comparing apples to oranges if you don't recreate the original with a 3d printed version. Scan the original and reproduce it.
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Can you retest some retail fans vs, all of the season 5 ones? Maybe see what be quiet is up to?
Hey, the gear ratio looks excellent, I wonder how it would perform if the centre was made to fit inside the frame. Is the A12 still top due to the material used? Did you do a reprint of the A12 at one point or is my memory failing me there. If not that would be a great second baseline test to include.
The trailing edge is pressure optimised, it is almost centrifugally sloped around the back. I think there won't be a similar performance contender unless it uses higher blade count, or some clever high trailing angle.
Question. What don’t you mount the fan behind the plexiglass like if it was in case.
That shot with all four fans simultaneously in the smoke test was epic!
im curious if you print stock fan design vs original stock fan what would be the difference
Do you ever go back to old submissions? I submitted one back in season 2 called knifes edge.
Antonio, respect!
thx
@@antoniobruno2947 stl download link? Pls
In all honesty you need to Resin print some of these designs. The flow characteristics could be unintentionally deminished due to how rough the current print resolution is.
Great video, wich microphone are you using for the fan noise?
You could really tell the gear ratio would do great! Just look at the smoke being sucked in. It sucks the smoke from much further away than the other fans.
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How does the fan text T30 stack up against the a12 x25 in this test I would really like to know
I would love to see a fan design like an air conditioner condenser fan, since they have a nice blade pitch and few blade numbers (usually 3 blades).
Unfortunately I can't design it because I have zero skills to do so, but I would like to see someone doing it!
Maybe Noctua should outsource your services as a their crowdsource fan research department. Amazing stuff.
Every time one of these episodes gets posted I hold my breath hoping my design gets picked. Still holding my breath lol
Don't give up hope! Mine was picked like a year after submitting it. :)
Oh dang I heard a rumor he had thousands of backlog
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Once you see a fan make a long whirlwind on the other side of the plexi screen you know it came to play hard.