Cooling Fan: Toroidal vs Normal

The fan I used: amzn.to/3KdOP3r
Printed with this printer: snapmaker.sjv.io/9g70NE
My favorite printer: shorturl.at/hxCQG
My fan design: www.printables.com/pl/@Nikode...
Toroidal propeller on a $25 cooling fan? I am testing the differences to see if this is a feasible idea!
Check out my CNC machine: indystry.cc/about-indymill/
Indystry: indystry.cc
Patreon: / nikodembartnik
Instagram: nikodembartnik

[@nikodembartnik]

Check out my other toroidal experiments in this video: kzbin.info/www/bejne/d5C5ZKeHbd-NatU

[@throng5092]

Make odd number of fan blades bro

[@ryelor123]

Get a card scraper. It'll make post processing 23 times faster.

[@w2lf]

I like the toroidal noise more

[@mafioo_]

Ale się wystraszyłem, gdy zacząłeś mówić po polsku XD

[@RicardoRamosRetrocomputacao]

Dude, I'm sorry to disappoint you, but I studied this type of thing for a few months to build a homemade wind turbine, and this is much more complicated than just printing the propeller. I don't want to write a long text, but I recommend you research the blades of wind power plants to understand what I'm talking about (angles, degrees, stiffness, thickness) it's incredible how even a little dirt on a blade can ruin all harmony and balancing, and generate noise. A tip: remove the protective cage during the tests, as it creates turbulence, and also try to get data on the noise that the engine generates to be able to have accurate information only about the propellers.

[@andrewsemenenko8826]

Hope he sees this ↑

[@HolahkuTaigiTWFormosanDiplomat]

Is it better to have no fan?

[@than7831]

​@@HolahkuTaigiTWFormosanDiplomatif it had no fan it definitely going to be a lot quieter

[@yokun1885]

Write the long text. I want to learn.

[@alex.g7317]

@@than7831I’m thinking about this when I get my pc

[@RobertSmith-wj7zf]

The noise from the toroidal fan was a very soothing white noise. Now you have me thinking about replacing my go-to-sleep fan.

[@gismoscherer]

Same thought... Seems more pleasant

[@rRekko]

Rather than soothing, i bet it is way easier to mask because of the low pitch.

[@roelskiunplugged1134]

Get a ceiling fan instead. Sooooo much more comfortable and silent!

[@SnowFaceChamcham]

More expensive, requires professional installation or knowledge to install, and it's not really equivalent in function to a fan meant to help for sleep. A ceiling fan could not compare to a box fan on a table right next to my bed

[@RobertSmith-wj7zf]

@@SnowFaceChamcham Box Fan was my go to sleep KZbin video for a long time. 😃

[@user-vc1ox4uv7e]

Your rotor is not balanced

[@paradoxcorporated2906]

Yeah, absolutely OP

[@Neptunade]

Where there is a problem there be MORE THAN ONE question!

[@user-vc1ox4uv7e]

@@Neptunade hmmm! But the only things I can think of is the unbalanced rotor. Which may be due to poor mass distribution on impeller (3d printing imperfections). Also, if the design has critical speeds at the rpm he is operating! Anything else you can think about mate?

[@brianmgs2006]

@@user-vc1ox4uv7e the infill could not be centered, since I dont know how to center the infill properly, the easiest way to probably balance it is by drilling a hole adding some weight.

[@Speeddekhmeri]

Doesn't made by professionals

[@qazxswedcxzaqws]

If you remove the safety cage you will get a very noticable sound reduction, as it generates a lot of annoying tones from turbulence. Obviously though, don't do this with kids or pets around.

[@EthanSeville]

Also is such a dense mesh it mess with airflow

[@czarcoma]

Will be ok where I am where I don't have kids nor pets that can hit blades. 😊

[@smashed_penguin]

I actually do this with most of this type of fans for this exact reason. Since the motor doesn't have much torque and the plastic doesn't weigh much to carry lots of inertia it doesn't hurt much if you accidentally touch it.

[@howardlam6181]

that's why you can't beat dyson

[@tinayoga8844]

An additional consideration about your father's perception of the noise level. He is older (but younger than I am) and probably has more hearing loss compared to someone younger. Hearing loss typically is in the high frequencies. It seemed to me that your spectrum plots showed a greater reduction in the high frequencies for the toroidal fan measurements. The difference between the two fans would seem to be less for someone with higher frequency hearing loss because the relative perceived level of the high frequency content would be lower than the mid and low frequencies heard.

[@TheRainHarvester]

Are his dad's ears covered from sound too?

[@kennethbeal]

My grandmother, before she passed, unintentionally demonstrated this for me: she had a dryer whose belt was slipping and squeaking. We were standing next to it, and I asked "do you hear that?" and she could not. That friction could result in a fire. We replaced it, and learned that as one ages, the reduction in sensory inputs can lead to dangerous conditions.

[@vaakdemandante8772]

yep, the conclusion being: test on mum, or sister ;)

[@michroz]

The problem with dad's perception is the _time_ required to change the prop! It is difficult to compare such a similar sounds with the time gap between the sessions. Compare this to video: two patterns immediately one after another several times - very easy to hear the difference! (BTW, to me: the toroidal prop seems to have a more pleasant noise spectre)

[@wildbikerbill6530]

@@michroz I'm an older gent and I agree - the toroidal fans sound was definitely shifted to lower frequencies, which is less annoying.

[@kristianmorris9738]

The noise from the toroidal blade was deeper and quite soothing I thought. Happy to have it on at night while sleeping. Nice video.

[@Saji_0]

The video is 10 months ago but I'm seeing so many new comments, algorithm is blessing this guy

[@hskdjh421]

It's hot right now in many countries and so many videos about ventilation and the likes pop here and there.

[@SoItGoesCAL34]

Even though the results were the same, I feel that the standard fan had more of an annoying hiss and preferred the toroidal fan. I really enjoyed this video and your professional scientific method. The only thing missing is a cat :) I'm impressed with your command of English (but maybe it is your first language).Thanks for this video!

[@percurious]

Nice, thanks! I've watched two dozen videos from different sources since the MIT paper came out. For me, yours most clearly and impressively showed (made audible) the difference between the two fan types. Same windpower, same power intake, same loudness level, but very much nicer frequencies. Thanks again!

[@vitordelima]

The testing is very good but the fan shape is hard to get right.

[@awlhunt]

If that’s the only conclusion you want to draw from that paper then sure, why not…

[@RobertdeVries-trimaran-sailing]

I have same fan, smoothed prop blade leading and trailing edges, took rear and front mesh guards off and huge improvement. About a 30 min job. (Watch your fingers, keep kids away)

[@user-ui3uk3md2e]

An interesting thought: how much of the noise is air moving through the mesh in front of and behind the blade?

[@RobertdeVries-trimaran-sailing]

You could measure prop noise with and without screen, but for sure it will reduce ome noise. Air flow: Basically the same amount, exept from some air drawn in from aside, so removing front&rear screens hugely reduces the drag=noise and increases fan efficiency. Simple mod. No cost. Not finger fool proof. I never stuck finger in fan. But it may happen.

[@CraigHollabaugh]

Toroidal's HF is desirable for me. Thanks from Colorado, nice project, video, test procedure, blind AB testing, script, audio and editing.

[@nikodembartnik]

Thank you!

[@user-nd7rd8jo6h]

But the brown noise is so calming 😭

[@kurjibhalsod3547]

Dude, your toroidal fan is made with so soft material, make it from little sturdy material, I bet the looseness of material is making sound not the shape. Try different material or thick wall to avoid flexibility, even when you touched it with hand it feels like a jellybean.

[@VladekR]

Repeating those tests on 'bare' blades, no front (and even no back) cover may eliminate noise from air hitting mesh. Sharpness of mesh (and poor finish) could contribute to the noise level. Great job anyhow 👍👍👍👍👍👍👍👍👍👍

[@peteralflat281]

My thoughts too, the mesh affects airflow massively.

[@alphasigmasezon8597]

Old Fans do not have mesh cover

[@patrickcardon1643]

It's still more professional than some "professionals", nice going

[@BloodyMobile]

The toroidal definitely sounded less "aggressive". I also just remembered that Zipline made some weird asymetric fans to drastically reduce the noise of their drones. Now I wonder if a similar although likely less drastic effect could be achieved, if you go with a 4 "blade" toroidal design but make slight changed between the 2 "blade" pairs. Like giving one pair more pitch and the other a little less or making on pair's "rim" go more outwards and the other's more inwards, so the blade rings aren't completely circular, but slightly oval, with one pair being oval outwards and the other "sideways".

[@VeerDaVlog]

hmm

[@vitordelima]

Its shape wasn't tweaked using any optimization process while regular fans are well known and were optimized for decades.

[@animal11011]

I like your work. Now I want a Toroidal fan for myself. I preferred the frequency of the noise form the toroidal fan vs the standard. the toroidal fan frequency was more calming than the higher frequency from the normal fan

[@brianjoelbasualdo7436]

Basically, the toroidal and original produced the same sound frequency pattern. Judging by the graphs you showed, and considering their evolution over time, the pattern of frequencies and their volumes remains relatively constant around a certain range in vertical axis. If you inspect the range for each frequency and take the average of the values in that range in Y, for every point in X by separate, you make a Average_volume-Frequency graph, which seems to be the function over which the graph "fluctuates". By comparing both graphs from the two fans, and assuming the scaling in X and Y is the same for both, then we can conclude basically both have: * The same averageVolume-Frequency graph * They both have the same volume * The dispersion made by the toroidal has a standard deviation smaller than the original one. So yes, for every single frequency, the toroidal fan makes less sound as it's standard devation of volume over time is smaller than the standard deviation of the original one. This has the result of having a more "smooth" sound (as it doesnt vary too much from the mean) and slightly "quieter" (as it has ≈ mean but smaller deviation; this is, for a certain frequency, the maximum dB or volume archieve by the toroidal is always smaller than the maximum volume archieved by the original). So yes, it's good and I think your model is better. However, it would be wise first to test wether the toroidal is secure, stable and cheaper to produce.

[@yitzharos]

You sir are answering questions that I have asked and never done the work. Thank you So Much!!

[@johanness6545]

Nice project, this has a potential to go viral, especially with the great looking thumbnail :)

[@des2knee962]

To think and try it out! You are truly a great engineer, kro up the great work

[@DocLow]

I appreciate that you're using professional equipment. Thank you for doing the science. I prefer the low hum of toroidal, gonna try to print my own.

[@kitsinu1]

I appreciate the honesty and diligence. Well done.

[@Thor_b]

“ it’s professional I promise “ 😊 love your personality 🤙🏽

[@jazzybiscayne]

The video production is superior! I love your content happy new year!

[@byronanderton8810]

That high frequency roll off made the toroid blade sound more soothing and less annoying.

[@DoodleDan]

Straight to the point, good video

[@codefik]

Did you consider testing without the protection metal frame? I have a feeling that most of noise is produced by the air hitting this structure.

[@GromPilot]

So funny, love the humor. The expression about it not be perfect is new to me. I laughed. Your dad in the chair I laughed. I also learned about the point you made. Thank you for posting.

[@zereimu]

"If there is a problem can we fix it with a toroidal fan?" This is the solution to all relationship problems.

[@volt8399]

Thank you for sharing I enjoyed the deeper frequency of the toroidal fan alot

[@sailaab]

This was a very well executed, detailed project👍🏻👌🏼

[@Peter_S_]

Great video, very interesting results.

[@Tigrisshark]

I always wondered if you could apply the designs from 'The Fan Showdown' to a cooling fan. I'd be interested if the measurements would remain proportional or if it would change when applied to such a large and 'slow' moving fan.

[@Baliklar_da_yuzebilir]

Be carreful! You can't get performance due to the imbalance from production. simply get the balance after production. Differention will be came with balance!

[@vitordelima]

Another video about thoroidal propellers did this.

[@MiguelDeMarchena]

Personal experience (after years using different brands of desk fans) : old KDK fan blades have lower noise because they are flatter with wider blades, angle and curvature of the blades are important for lower noise and air speed and you need to find the balance between both factors, last thing ball bearings make a more power efficient fan than sleeve bearings, use graphite lubricant for better results.

[@jut7030]

Your video production and presentation are getting better and better, it's good to see more of your personality and a more jovial approach. This one was too short though, we need more ! 🙂

[@nikodembartnik]

Thank you!!!

[@1islam1]

@@nikodembartnik 🔴 What Is Islam? 🔴 Islam is not just another religion. 🔵 It is the same message preached by Moses, Jesus and Abraham. 🔴 Islam literally means ‘submission to God’ and it teaches us to have a direct relationship with God. 🔵 It reminds us that since God created us, no one should be worshipped except God alone. 🔴 It also teaches that God is nothing like a human being or like anything that we can imagine. 🌍 The concept of God is summarized in the Quran as: 📖 { “Say, He is God, the One. God, the Absolute. He does not give birth, nor was He born, and there is nothing like Him.”} (Quran 112:1-4) 📚 🔴 Becoming a Muslim is not turning your back to Jesus. 🔵 Rather it’s going back to the original teachings of Jesus and obeying him. More ....

[@schautamatic]

I know you didn't intend for this to be an analog harshnoise demo but, at around 2:20, you nailed it! 😄😄👍🏼

[@LokiDaFerret]

Kudos to anyone who can read that disclaimer in the middle without pausing!!

[@teardowndan5364]

Toroidal fans mostly help with reducing high-pitched noise from vortexes at the blades' outer edges. The remainder of high-pitched noise is likely caused by the fan guard turbulence as others have already mentioned.

[@johnrobertfrench]

At the tip of the toroidal blade, what would happen if holes were drilled to let the air escape the cupping of the air? Would this allow the blade to speed up with less resistance?

[@merion297]

🤘🏼 Cool experiment! By the way, ceiling fans are not noisy (because the horizontal operation balances the blades) and they also circulate air much more efficiently.

[@SANTOSHKUMAR-zo4ef]

That was a great experiment buddy !

[@PONTOCRITICO]

This propeller was created for greater efficiency in both noise and thrust. The problem is that it doesn't work in 3D printing, which means it's not that applicable to the general public and depends a lot on the manufacturing process. This is the umpteenth video I've seen of this experiment going wrong using plastic printers, which shows that this type of technology doesn't apply to them. The result is very different from what specialized companies achieve and it's clear that the result depends on the quality of the material and its smoothness, as well as the proper balance in the weight of the propeller, which I think is one of the great secrets of it all.

[@brianmgs2006]

He did a pretty good job and presented some valuable data! I bet it can work as 3d printed, its just that we have to do a bunch of math to generate an optimized geometry for each application and rpm range. My gut tells me the angle of that propeller isnt great for this application but I dont want to do the work to prove it and suggest a solution.

[@PONTOCRITICO]

@@brianmgs2006 It may not seem like it, but weight, smoothness and mass distribution have a huge influence on the performance of a propeller. In all the experiments I've seen on the Internet, these toroidal models never work. It's not just this case here, I've also seen people try to put these things on drones and the performance of the aircraft gets much worse. This technology has remained in the hands of those who created it and that hasn't changed yet...

[@SevenDeMagnus]

Cool this has to be in all fans, including in the Macs. God bless.

[@vizard01]

Interesting test. Since I found out that they exist, I was interested in trying them. More since I read about its "benefits", but in practice, after seeing several reviews, I don't see those benefits, at least in air applications. Although according to other publications that I saw, the best test scenario is water, in aquatic vehicles it improves engine performance and reduces turbulence. Excellent work, I congratulate you. Greetings from Argentina.

[@mrsmith5114]

I give you credit for doing this. I still like the sound of the original, but I also wear headphones and like the white noise to block others out :) Maybe I am just more used to that sound.

[@nonidtuhnow4924]

About the noise have you tried make blades of more volume (in shape of a water drop) with wider round intake side and sharp thin outtake?

[@AminRahimi-1]

I recently found you. That was awsome. thanks

[@janlev-qj2ud]

the toroidal fan is quieter also is somewhat less dangerous than extended sharp regular blades.

[@maxhugen]

Good job... respect your efforts to test these. 😎🇦🇺

[@clintthompson4100]

The sound of the Toroidal blades sounded better to me. Definitely could use the noise (hum) from those blades to relax and fall asleep.

[@YouTube_can_ESAD]

This is the first video that I’ve seen of yours and you are doing an outstanding job! Love it! Subscribed 🔥🔥🔥

[@blindfaith8777]

THANK YOU for doing the power comparison. It's sort of a lurking variable and I wasn't expecting it to be addressed.

[@youngster30uk]

I think a lot of the difference is about the pitch of the sound it makes. As people get older, the audible pitch level of what they cam hear changes (decreases I think), so you should use different test subjects with different age ranges and see what the results are

[@serdarcam99]

we don't need toroidal but adding diffuser on the wings works perfectly fine and drops sound quite a bit almost all metal bladed fans have that feature thus makes it more quieter while being more efficent

[@christophergrove4876]

🇨🇦/🇺🇸... In all seriousness I ALWAYS just remove the front screen off of any fans I have. With plastic blades your fingers are still pretty safe and the rear screen still protects from the rear and the sides. Yes, you still may not wish to do that with babies and toddlers but other than that it is so save you can stop the fan with your tongue with no danger. Seriously. Buy a fan with the good ol'-fashioned teardrop shaped blades and stay away from the more "aggressive" shapes. They aren't usually as efficient and are noisier.

[@Trixter9000]

Great job. Very interesting topic, but as a fellow tinkering enthusiast I have a couple of questions and suggestions. Firstly, why not ABS? It would be much easier to post process with an aceton fume treatment. Furthermore it would be much more rigid because your propeller looks way to wobbly. It means it could deform under lead in an undesirable way a ruin your rssults. Going further, a but more mass to the propeller could help too. Firstly, to balance it by removing some material, seconldly by negating vibrations from the motor and the swing mechanism if the fan. Additionally look different ways aviation industry combats stream dekamination. It nay help too. If I remember correctly, sometimes they use dents or grooves on rotary blades or wings to help with it. Lastly, Keep on with it! Great project. Hope to see pt 2 😊

[@vishaldhokia7138]

consider adding more concentric blades to toroidal blade? will it do any good?

[@kenzeeato]

okay i just watch 1 youtube short about fan exploding, and youtube be like here another fan video, now I'm in fan universe

[@obviouslytom]

How much of the sound is from the air going through the metal surround?

[@filiagees]

amazing study! thanks for sharing

[@Hukkinen]

What would be the optimal toroidal propeller and how would that perform?🤔

[@bmwn1954]

Hello, it seems like an interesting idea. I like it a lot. But how much does it really affect the air volume transfer? And it certainly consumes more energy, isn't it?

[@crimsoninsight97]

I'm kind of curious about the difference in weight between the two fans, it was very noticeably shaking when using the toroidal fan

[@Azilythe]

There is a quieter design you could try, but it would be harder to pull off because it needs good balancing. They're the "zipline" silent propellers that use an offset blade design that is counter balanced to produce a lower frequency sound.

[@trig]

Good attempt, but is that a real Toroidal or a TlO (Toroidal looking object):) I am guessing that small differances in blade pitch etc could make considerable improvements. Your thoughts are welcomed.

[@MarinusMakesStuff]

This is not a toroidal fan, it is a toroidal object. With a toroidal fan the blades act like wings and the rounded over edges prevent turbulence. It's nothing like the design in the video. I mentioned this in the last video as well.

[@vitordelima]

@@MarinusMakesStuff Interesting.

[@neferiusnexus]

The toroidal does indeed produce less high-frequency sounds, which carry the most energy and thus have the most potential for aggravating hearing-loss when exposed to them for long periods of time.

[@LUKAS3675]

I read somewhere that the point of toroidal fans is for high rpm the chart at 1:45 seems to point in that direction, the regular fan shows diminishing return with increase of power, but the toroidal scales better, any chance of "overclocking" the fan? ;) (just subscribed BTW)

[@evgeniyevstratov1198]

nice idea and tests :) I'm also sensitive to noise and was trying to come up with some quiet cooling for summer time awhile ago. I ended up creating and placing a table fan just in front of me - I used noctua S12A model - it's small but can do some pleasant cooling from such distance, and it can be dead quiet (it's one of the best performance/loudness fans you can buy) I typically use it at around 60% power (60% pwm duty to say exactly)

[@BlOoDyRhUm26]

Hey look a this modified noctua fan :) "Reverse ENGINEERING Noctua's mythical DESK FAN (Noctua NH-AAS) by major hardware" kzbin.info/www/bejne/iXrGm6WDor2fecU

[@danielvelasco1813]

Thanks for this video, great work, it's not perfect but it's more than you think, thanks again and keep going! Cheers from South america!

[@akg421]

KEEP DOING THIS TYP OF WORK

[@Kram1032]

I think in this setup the regular fan wins. The (smoothed) toroidal fan may be slightly quieter overall (according to your very professional high precision test) but the regular fan's noise profile is closer to "pure white noise" whereas the toroidal fan, to me, has a clear low-pitch hum to it on top of that white noise, which might be more annoying over time.

[@victorbarreda5982]

did you compare the mass of both blades before the tests. This may have affected the efficiency of the second blade. Though minimal in its effects it may have played a role.

[@brkatimachor]

Awesome video! Wish i could afford to shovel money at you. Big up your dad too for his honest assessment. Do you think te results had anything to do with the relatively flat profile of the propeller? Other toroidal propellers I've seen online appear to be a bit "deeper".

[@madi112233]

There were two many uncontrollable variables in this experiment. The fact you've got it not worse then what was offered by a manufacturer is already amazing

[@IvoPavlik]

Cool experiment. One note though on the presentation: Do not move the microphone around while speaking. It changes the sound volume over time and can be distracting. Just clip it on your t-shirt and you are good to go.

[@laserbean00001]

Have you tried Zipline silent propellers?

[@Gbbb239]

Amazing work.

[@PAPO1990]

I preferred the toroidal noise, but as the speed increased the improvement reduced, I suspect this is due to the inherent imperfections of a 3D printed part, a properly balanced injection moulded part would likely be a clear win for noise

[@zer0nix]

I wonder if adding tubercles and a serrated trailing edge can make these even quieter! The sound generated by the toroid shape is definitely more pleasant imo

[@shleaumeau7740]

An owl's feathers are rough, making its wing flaps almost silent. If you "feather" the fan-blades, will it reduce the noise?

[@paiwanhan]

The toroidal dampens the higher pitched noises, and if you ever walked into a server room, it's those darn high pitched noises that's driving people mad.

[@MisterRz]

kiddin' me? fan noise is white noise for me. pretty relaxing!

[@akr01364]

I somewhat wonder if the less annoying, lower frequency sound the toroidal puts out is possibly due to the blade itself being a unitary construct and having more rigidity?

[@user-tu7uu8jx1k]

The tips of the original fan blades created very high-frequency noise as they cut through the air. The Toroidal fan blades effectively solved this problem. Additionally, the Toroidal fan blades have similar energy conversion efficiency as the original fan blades. Therefore, Toroidal fan blades are more advantageous.

[@j.f.fisher5318]

Part of the performance difference may be that it looks like the printed fan was basically flat blades in cross section, while a real fan blade is more of an airfoil in cross section.

[@bobhoof1362]

Did you measure current draw as well? I didn’t see anything about that.

[@skrattzerat5831]

I like the lower pitch of the toroidal sound

[@Ryan.Dias619]

You covered your Dad's ears and asking him which one sounds more noisy. But its nice fun experiment. I like experiments that have fun aspect to it. Subscribed👍

[@tiborchren]

Nice work, I like more the sound of the toroidal propeller. Try playing with the size of the toroidal propeller, for example make the diameter smaller or make the toroidal propeller more or less dense.

[@vitordelima]

And the initial pitch near the hub, the pitch around the 'knots', the pitch when a blade is joined with another one, the blade thickness, the blade side profile, shape changes to improve the drag of its corners, ...

[@roxcedd]

How did you solve vibration issue?

[@glbernini0]

Can't imagine the frustration being hours into the printing and have it mess up over & over again!

[@stressless8405]

I like the sound of the regular fan! Whitout it i cant sleep 😢😢😢

[@jansirkia3809]

So now we know. Thanks for your hard work! 😀

[@growupjohnny9374]

Pretty cool man

[@mori19960116]

If the weight is the same, it will be more difficult to make, but it may yield better results. Additionally, technologies like the 'Ultra-open acoustic metamaterial silencer based on Fano-like interference,' which reduce noise while maintaining breathability, may also be useful for lower HF noise.

[@jeffwygum3032]

Toroidal fan has a more pleasing sound. Probably due to what seems like a lower pitch. At any rate, a great project very well executed and documented. You should definitely consider a career in engineering if you find it interesting.

[@DD-uf2uo]

Nikodem, Try this, using the Original fan blade make a flat Band to go around the circumference of the blades. Looks Sort of like a person using a headband when jogging. Maybe make it out of a 3 (76mm) or 4 (102mm) inch piece of plastic. Check for NOISE and a possible AIR VOLUME increase . I think it will make an improvement. Shouldn't be to difficult. You already have the measurements for the Original fan blade. Good Luck. From the Southeast USA. .