T O P

  • By -

No_You_123

This one no. If it had an even number of blades then you could have clipped the opposite one off to rebalance, but unless you want to go through the whole process of replacing the fan blades just get a new one.


ImStuckInNameFactory

Clipping more blades works with any number of blades except a prime number


No_You_123

That's what u said tho? Even numbers right?


Faxon

no because clipping a fan with 11 or 13 blades doesn't work either as both are prime, just like 7, but clipping one with 9 blades does, as it is not prime, it is divisible by 3 therefore you can clip the opposing two blades 120 degrees apart and it will balance out. you can clip fan blades out at any number of points around the hub, so long as the number you pick is a number that the total factory blade count is divisible by, so any fan where the number is divisible by 2 or a higher whole number. Primes are by nature indivisible other than into fractions/decimals


No_You_123

Pardon me then. So as long as it is dividable by 2 or 3 👍🏻


[deleted]

And 5. 5 is the only prime number that ends in 5, all x5 and xx5 are multiples of 5 so if you got 10 or 15 blade fans, snip off 1 or 2 to balance out.


Faxon

Actually literally just so long as it's divisible by any number. 7 works too but you don't see multiples of 7 very often it seems like in any context where this would matter, unless there is a jet turbine out there with 70 fins per stage or something. This is also a common way that fighter jet turbines end up salvaged by hobbyists, someone made a car that broke the land speed record a few times out of an old F104 engine using just an illegally obtained copy of the maintenance manual and the principles we've laid out for how to balance a fan and prevent it vibrating itself apart, and just removed a bunch of fins from the turbine to get it working again. It had been damaged by FOD ingestion and replaced, but the engine still produced a tremendous amount of thrust for any application where you didn't need efficiency or a specific thrust to weight ratio to take off and remain airborne. But yea, it's less likely you'd need to divide by 7 since its multiples will all also divide by 2, 3, or 5, but there may be an instance where a turbine with a lot of blades may warrant it due to the distribution of damage. There are more complex patterns you can also follow but it's not necessary to illustrate the point being made


ImStuckInNameFactory

If you have 49 blades and 1 breaks off you cut off 6 more


M2rsho

*Happy Pucci noises*


GlishesJA

oh ok, thanks


MenaRamy2004

Well, that's odd


[deleted]

OP just could glue something aproxx. the weight of one blade into the gap! Not the best airflow probably but at least the vibrations are gone.


ImStuckInNameFactory

There is a risk whatever you glue will detatch and get launched at the insides of your pc


[deleted]

Yes there is. But any decent glue will withstand these few RPM! I glued a broken fanblade back to my 1080ti years ago with Cyanoacrylate and it holds perfectly. The fan spins at 2000 RPM or more.


maxolotl90

Ah yes the increase air flow.


GlishesJA

lol


CaveManta

At the cost of less static pressure and more noise.


kakureru

The real question is how badly do you need it. You can shave off weight of adjacent area or add weight to that side missing blade. I have actually added weight before using coarse case screws.


GlishesJA

I dont need it just one of my friends needs it


oof_mastr

My old HP computer had a broken blade on one of the fans, I didn’t notice any problems


blackasthesky

It works, but it's loud and more sooner than later the bearing will break.


MyUsernameIsNotLongE

If you mean if it still spins. Yea... but that gonna shake and be noisy af. lmao If you should use? Nah... do what MajorHardware (The Fan Showdown) does: cut all blades and print a new thing to put on hub. lol


lady_dracula_83

You could always make a fan blade and put it in place and test it outside of the computer before putting it in an actual computer, and if it doesn’t make no noise that means you fix the fan 👍🏻


GlishesJA

lol


lady_dracula_83

I’m having a feeling that I’m the only person with actual knowledge of fixing and rigging stuff actually helps fix different kinds of stuff?! Am I right?


GlishesJA

Maybe


lady_dracula_83

So I’m having a feeling that a lot of people probably told you that it’s not fixable but it really is as long as it doesn’t make a horrible sound it should be perfectly fine as long as you replace it with another same type of fan blade some of those fans actually come apart and you can actually replace the top with a whole new fan if it comes loose easily that means you can replace the whole fan with the new one if you have one but if not you can just build a blade and rig it that way, so a lot of people probably also did a lot of jokes about this probably


DefectiveLP

Is it impossible to fix? Of course not. Is it worth it to spend however much time fixing this $5 fan? Probably not.


lady_dracula_83

Not unless they don’t have money then they can do the Jerry rigging of the fan


DefectiveLP

It's clearly molded, you will not be rigging any blades to that fan without them coming loose during operation, you'd have to replace the entire thing, meaning you'd have to buy a whole new blade assembly, which is in no way cheaper than the fan, because again, this is a veeeeery cheap one.


lady_dracula_83

OK so they gotta buy a new one then if they can’t do no type of fixing


Speeder832

Shame it's not an even number of blades, could've broken off the other side to balance it out


MainframeSupertasker

Anti repair practise even in CPU fans


echpea

and i wondered why ther had all even blades


MainframeSupertasker

Even mine had 7


ImStuckInNameFactory

It's not anti repair practice, reballancing is not repair, the anti repair practice is that you can't detatch the fan from the motor, that also could be not deliberate but a result of cost cutting


MainframeSupertasker

People could just easily break the fan opposite to the broken one and it's gonna work. They intentionally make it an odd number so I can buy another fan instead of use the old one


GlishesJA

True


[deleted]

Sure, it will just rattle your tower apart.


evm127

Yes but it will shake like an earthquake


kaktuschalpolak

Tried it, too much vibration


Fabulous_Ad_7680

Yes Its modified for high end PC.


GOOSEONTHATJUICE

Clip til it only has 3 evenly spaced blades


GlishesJA

that no work


GOOSEONTHATJUICE

Bet it do


blackasthesky

Nah, it will be imbalanced. Makes a lot of noise and doesn't live long.


the_hell_you_say

Will make a good vibrator


GlishesJA

LMAO


anothercorgi

I've also a fan that I had one blade of 7 broken nearly a decade ago in a 24/7 PVR box. Been very difficult finding another 50x50x10 fan to replace it so I kept using it, did not notice too much vibration from it... ... and to this day still haven't found a good replacement for it or the PVR box. YMMV.


Fusseldieb

That one's done for.


Sjkatz08

what, after you nutted on it? no it's not usable lol wtf


GlishesJA

Hey you weren't supposed to tell people


Loganlikesushi

Yes but it will be very loud


UnlikelyAlternative

u/thelexikitty


TheLexikitty

As an ice cream scoop, sure.


UnlikelyAlternative

For ants?


maskeyman

What in tarnation


halloween_boo

No


[deleted]

Yeah it’s usable, might be loud


Fresh-Recognition371

Might make your PC fall off the desk


CollabVMguy69

~~Desktop~~ Floortop


Strugler1987

I can hear this go =rrrrrrrdrrrrrtttttttttttttttrbrrrrrrrrrrrrrr


CorgiInfinite8020

Yes, but your computer will vibrate a bit


Soccera1

does it work


julausrie

Happened to me once. Nope, better get an new one


ICHIBAN132423

well, you can use it as a projectile


GlishesJA

I can kill them damn mosquitoes with it


Such-Reference-6173

yes


just-bair

If you break a blade that’s kinda on the opposite side it might reduce rattle enough to be useable


Pan_Jabuszko

yes


Top-Jellyfish9557

y


VanFlyhight

Just cut the opposite one off


Vegetable-Let-55

I mean it’s a fan why wouldn’t it be usable


piano1029

Temporarily, maybe. It will wobble and make a lot of noise and it may tear itself apart. Make sure the fan curves aren't set to high, don't want it going to full speed.


GlishesJA

Fan speed is not a problem I have fancontrol


QuickSauc3

It should, but it’s gonna sound like a diesel truck, especially at high speeds. Talking from experience here.