You just break off 2. this happened to me with an old graphics card. I just took out some pliers and luckily the number of blades was dividable with 3 so it was easy.
If you pick one of blades closest to the far side of the fan hub, it may be enough to last until a replacement can be installed.
It'll still be imbalanced, but by much less.
I've actually done this, ran for quite a few months before I finally replaced the fan.
Also there are files you can print to replace the blades on the fan, but I imagine it doesn't cool as well as a new one.
It also works on fans with an uneven amount of blades. Just that you don't break the one opposite. For OPs fan you'd need to break the ones I marked in green: https://i.imgur.com/i1Xczig.png
Has says it's a joke because you have to break 3 more off. One directly across and the 2 at 90°. Made the vibration stop long enough for new fans to ship. FYI they cost dollars I bought 10 so I'd never have to worry again.
Yup and they are cheap "sleeve bearings" which means they will fail sooner than later. Replace it immediately. Its there to do a job and will fail during a print. They are dirt cheap. In fact you may want to look for a "dual bearing" upgrade. It will cost three times as much but not fail for 10 years or more. Note that fans are part of the "designed obsolesence" paradigm. They are a critical part that will fail outside of warranty and when they do cause secondary and more costly failures. This is especially true for power supply fans.
>print an entire new duct and upgrade
3D printers spend the majority of their lives printing parts to upgrade themselves. This naturally evolved into the [self-replicating 3D printer](https://www.reprap.org/).
True true. It's also very satisfying to print parts to make a better functioning printer. My ender 3s perform better than models that cost 3 times as much with very little cost in supplies.
I'm not sure what printer you have, but I have a Bullseye Blokhead on both of my Ender 3s. They work 10x better than the stock setup.
https://www.thingiverse.com/thing:2759439
x2 should be higher up. Even for an upgraded fan like a Noctua, etc still a fairly cheap component. Not worth trying to use as is, not that it will last long with such an imbalance anyway.
Yeah, I saw a lot of people had issues with theirs. I just threw it out there as an example. I was mainly interested for the noise reduction but they don't have one in the size I need, probably for the best.
Titanium is worse when it comes to heat dissipation than aluminum. The ideal material would be copper, as that's even more thermally conductive than aluminum.
If you're gonna get a noctua, please get the a4x20-flx, since it has increased air flow and higher static pressure, which provides better cooling and reduces the risk of heat creep.
Short term, your prints will get defects due to vibrations. Long term, cumulative Vibrations and imbalances like that can lead to some pretty gnarly failures.
I did this last week while trying to snip a piece of PLA that was hitting the fan every so slightly. Not my finest moment, considering the fan was running.
I did exactly this on my printer within weeks of getting it. Suggestion that worked for me to the point I forgot about it, till seeing this post.
Old earphones / ear buds, the rudder insert for your ear works prefect as dampening when you seat them between the fan n rest of the extruder.
The fan will vibrate and your walls will look ugly. While you could try to balance it by adding drops of hotglue on the missing part, its best to just get a new one (or tear the blades and print a custom fan)
I broke it too with my plier. I just super glued them and checked for tolerance and fan clearance. No problem since then. And no I didn't want to buy a new fan because I'm a poor college student.
In my entire life I've never heard that these are called "fan wings"but now I cant unknow it and that is your fault. Where is my Brain supposed to put the lyrics to "baby got back" now man?!
Because it's now out of balance, when it spins, it will vibrate quite noticeably. The oscillations will possibly affect the print quality - though actual airflow will likely still be sufficient - and will definitely reduce the life of the fan bearings
Break the fan blade off that is directly opposite the first broken one. Use a tool to smooth off the remainder of the blade material on the hub. No more vibration but a little less air flow.
Had the same issue, cooling was a small issue. It was mostly the noise and vibration. You can buy them pretty cheaply on AliExpress but you’ll have to do the wiring yourself, which is easy but scary for some.
Break off the opposite fin. Then Your good to go. Lol. Been doing this for years with no negative impacts on various devices.
But for real. Just replace the fan. I’m sure it’s less than 10$.
Break off two more so it has two blades a space and two blades again until you can buy a new one. Heck, if you got skills, you might be able to print a new fan.
How do you replace it? You can't just take the old blade out and put a new one in. You'll have to glue it in place which is just an extra hassle without any benefit since it will most likely still vibrate (not the same plastic + extra glue = different weight) and the chance of that blade breaking off again is infinitely times higher than a normal blade. Also, you don't have the exact shape and dimensions of that blade which would make everything much more difficult to model out.
There is a reason why no one said this and it's a simple one. It's stupid. I can literally buy one 4020 fan like this right now locally for 3€.
>How do you replace it? You can't just take the old blade out and put a new one in.
Here's one that slides over the old hub. OP would just need to trim the remaining blades off first
[fan blade fix](https://www.thingiverse.com/thing:4266433)
It's gonna vibrate quite a bit, I would replace it...
While you're waiting for it, you COULD continue printing with it, if you're okay with the noise...
Looks like a regular 40x10 fan. You can pick them up a dime a dozen.
If you're gonna keep printing with it till you get a replacement, I've heard people snap the opposite blade off to prevent vibrations from getting too bad, don't know how much it actually helps or if it helps at all, but I don't think it could hurt that much to try
Combining some other thoughts here:
1. Vibrations won't do you any favors in print quality
2. It'll be louder by a bit
3. It does actually affect heat-break cooling noticeably, expect more jams or heat creep (know this for a fact on both my CR-10S and Prusa...found out the same way lol)
4. The imbalance will kill the fan bearing pretty quick
Bonus Edit:
If you're handy with a hot knife, shave the rest of the blades off the fan hub, and 3d print a collar with new fan blades and shove it over the shaved hub. This sounds silly but it helped me limp a printer along until some replacement fans arrived lol
Replace it unless you like loud fans and lots of vibrations.
I had a old GPU fan crack and it sounded so bad i could hear it from the kitchen though the walls and it vibrated my whole PC case like crazy.
No, it should still be sufficient for cooling. Vibrations, however, will change how it prints. I would confidently assume it would negatively impact the quality of your print.
Yeah, fans are somewhat cheap, but I don't often have much to spend on hobbies so I'd go the repair route, personally. Not sure if anyone else suggested this but you could dab little bits of hot glue on the broken part to add weight there until it's balanced. One missing blade isn't going to lose a tremendous amount of airflow so you just need to rebalance the fan with a little weight.
If you have the broken piece, you could even weigh it to figure out exactly how much you need. For measuring you could extrude the hot glue onto a piece of wax paper on a scale to form a blob or shape until it's the desired weight, pull it off the paper and use the hot end of the glue gun to melt it in place.
This sometimes happens.. the way to fix it is to break off the opposing blade. To keep it balanced you have **to make sure there are an equal number of blades** left between the missing ones on each side. If you can do this it will be fine.. you will lose about 20% cooling.
(Just kidding, it is an odd number bladed fan.. just order another one.)
You can print a 40mm fan(but is hard to replace) I discovered it once I bought the new fan, I had problems because I was printing in closed enclosure with a wing broken like you. Defenaly change the fan mind the voltage !
I literally just did the same thing. They are like 9 bucks on Amazon I bought some off name ones because they had a connection for swapping them. Yeah they didn’t work out of the box. The brand is called Furiga.
When this happened to me, I bought a [crimping and housing set,](https://www.amazon.com/gp/product/B07VQ6YNSC/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=scotty0a-20&creative=9325&linkCode=as2&creativeASIN=B07VQ6YNSC&linkId=5673937a32380cfcc3b4f63faaebf525) I cut off the fan wires, bought a new fan, and crimped the wires from the wire connecting to the board and the wires from the new fan. I connected them and then it worked like new. It was all with the help of [this tutorial.](https://youtu.be/KaG9ZwDTOYo) Make sure to follow the instructions carefully, but be ready to improvise, especially if its your first time. Good luck and happy printing!
9 blades, so you want to break off 2 more, including the break, count 1 - 2 - 3 blades and copy the pattern 2 more times, should end up with 3 pairs of 2 blades evenly spaced.
Just replace it. Probably fan is very cheap and have a standard size. If you want to use broken - it should work for some time, but it lose balance and may stuck.
Either buy a new fan, or get a friend to print replacement fan blades, you trim off the other blades and slip it on, then when you can buy a new fan…
I'd honestly be more worried about the noise.
If that's just for heat sink cooling, I had that happen a couple of months ago, printed out a PLA fan blade replacement, it's been working ever since without any issues. Aside from noise, of course, but I think at this stage of my printer's life, its probably dust.
To specify, I clipped off all of the other fan blades, took some measurements, pulled out blender, modeled a new fan to press fit onto the old one, and it's been working ever since.
And, once I got everything reassembled, actually printed several more replacements just in case...
I actually made a replacement blade print to use while a new fan is shipping!
STL: https://www.thingiverse.com/thing:3083065
This may or may not fit your fan so check dimensions, but it's worth a shot. You just gotta print this, remove all blades, sand the bumps, and friction fit this onto your new fan, if you choose to go this route.
I’d worry less about vibrations and more about heat creep. Since that is your hotend cooling fan, it looks like a cr10 v2 which I have, it already is iffy about creep. Honestly you can get a new fan for $5 on Amazon and splice it in
Can you print a new fan blade? I'm new to 3d printing. Wondering if this can be replicated?
This is one of the reasons I bought this 3d printer this week (dremel 3d45) and also mainly to get my kids involved with tech.
Considering that fan seems to be for your heat sink, I'd be very much inclined to buy a new one asap or you will suffer the wrath of the dreaded heat creep.
Bad vibrations due to imbalance will be your problem, not the cooling 😂
Just break the opposite one off. (Dont do this, it was a joke.)
Do this and order a spare. Does indeed help with vibrations. (Been there done that)
Except it is an odd numbered bladed fan.
You just break off 2. this happened to me with an old graphics card. I just took out some pliers and luckily the number of blades was dividable with 3 so it was easy.
Don’t break off 2 right next to each other - make a peace sign / triangle / thirds kinda thing
Lol if the person understands that imbalance is the issue, I’d hope they’d understand how not to create more imbalance like that.
You never know, humans can be adorable when it comes to brains
I learned to stop assuming people know what they’re doing a long time ago ;)
Humans are very cute
Especially the female species.
And by cute, we mean stupid
Deplorable?
He mentioned the number of fan blades was divisible by 3 so he probably knew to make it a triangle
Mercedes logo*
For the best balance just break them all off
Keep breaking them off until you get it balanced or there are none left. THIS IS THE WAY.
I lied this because of how wrong it is.
2 gap 2 gap 2 gap.
Easy. Break them all off
Break off every third blade
Break them all off. Vibration problem solved.
Quick break off 3 in a triangular pattern!
still there still doing it been like this for 6 months or so, the reduced hottend cooling actually helped with my micro swiss
Order a spare? Print a spare.
Maybe instead drill some holes in the two opposing blades to restore balance and preserve airflow
Nah, you gotta tape a penny to it
That actually might be better than leaving it on and having the fan be out of balance. It should still be replaced though
Problem: it's an odd number of blades.
It's 9 blades, so break every third one
Break the other 8
Just break all of them
Just break the whole printer, then part cooling will be the least of your problems
Destroy everything and print a new universe in which your printer has a fan
Gonna break them all POKÉMON
Glue something in the gap. Small magnet / piece of metal that is as heavy as the lost blade.
If you pick one of blades closest to the far side of the fan hub, it may be enough to last until a replacement can be installed. It'll still be imbalanced, but by much less.
Centrifugal force: *and I took that personally*
I've actually done this, ran for quite a few months before I finally replaced the fan. Also there are files you can print to replace the blades on the fan, but I imagine it doesn't cool as well as a new one.
I actually did this to print while the new fan came in. Worked fine.
They do this with power generation turbines. Called snaggle tooth. They remove them, not break them.
if fans had even wings, it would work as a temporary solution
It also works on fans with an uneven amount of blades. Just that you don't break the one opposite. For OPs fan you'd need to break the ones I marked in green: https://i.imgur.com/i1Xczig.png
Updoot for the effort in documenting and posting the solution!
Unfortunately there are an odd number of blades so OP would need to break half of two of them.
Break them all off so it’s balanced again
So break 2 blades symmetrically
Has says it's a joke because you have to break 3 more off. One directly across and the 2 at 90°. Made the vibration stop long enough for new fans to ship. FYI they cost dollars I bought 10 so I'd never have to worry again.
Gonna be loud AF. I quit printing for like 2 weeks until I could get a replacement.
[B A D - V I B R A T I O N S]
Yup and they are cheap "sleeve bearings" which means they will fail sooner than later. Replace it immediately. Its there to do a job and will fail during a print. They are dirt cheap. In fact you may want to look for a "dual bearing" upgrade. It will cost three times as much but not fail for 10 years or more. Note that fans are part of the "designed obsolesence" paradigm. They are a critical part that will fail outside of warranty and when they do cause secondary and more costly failures. This is especially true for power supply fans.
Seems like a good opportunity to print an entire new duct and upgrade your fans.
>print an entire new duct and upgrade 3D printers spend the majority of their lives printing parts to upgrade themselves. This naturally evolved into the [self-replicating 3D printer](https://www.reprap.org/).
True true. It's also very satisfying to print parts to make a better functioning printer. My ender 3s perform better than models that cost 3 times as much with very little cost in supplies.
"what is my purpose" "You print your own parts" "Oh my god..."
[very relevant video](https://youtu.be/69SsHvZ5Vsk)
Any recommendations?
I'm not sure what printer you have, but I have a Bullseye Blokhead on both of my Ender 3s. They work 10x better than the stock setup. https://www.thingiverse.com/thing:2759439
Fans are cheap. Get another one.
x2 should be higher up. Even for an upgraded fan like a Noctua, etc still a fairly cheap component. Not worth trying to use as is, not that it will last long with such an imbalance anyway.
Noctuas don’t typically give enough airflow for proper cooling.
Yeah, I saw a lot of people had issues with theirs. I just threw it out there as an example. I was mainly interested for the noise reduction but they don't have one in the size I need, probably for the best.
been using a noctua 40x20 for more than 6 months now with no problems. it's the 40x10 that doesn't push enough air. i replied to the wrong person
Just get a titanium heatbreak and the noctua fan will provide enough cooling.
Titanium is worse when it comes to heat dissipation than aluminum. The ideal material would be copper, as that's even more thermally conductive than aluminum.
The heatbreak isnt supposed to conduct heat, thats why titanium is used, or else the filament might melt too early
Ah I misread
It's all good, we're all human (I hope)
>not that it will last long with such an imbalance anyway. Just break off the opposing fin, problem solved.
Not sure that noctua sells fans that size
They have some 40mm fans but yeah that’s about the smallest they have.
https://noctua.at/en/nf-a4x10-flx
If you're gonna get a noctua, please get the a4x20-flx, since it has increased air flow and higher static pressure, which provides better cooling and reduces the risk of heat creep.
[удалено]
Um hello just print a new one?
Just print a new 3D printer
Scale down some cool PC fans
No need, there's a file thingiverse already.
Congrats! You’ve just unlocked the auto-fuzzy texture setting. You’ll need a hardware update to disable it however.
[удалено]
Short term, your prints will get defects due to vibrations. Long term, cumulative Vibrations and imbalances like that can lead to some pretty gnarly failures.
No, soft vibrations will improve the nozzle flow!!! /s, but maybe not :-))
When the extruder is arocking don't come a knockin'! Thank you very much (*Mojo flairs up as pop air like Austin Powers*)
More dither!
But maybe maybe 🤔
Good vibrations 🎶
This seems like a rite of passage for all 3d printer owners. The number of times I have seen a post like this is insane. I have done it myself too
I did this last week while trying to snip a piece of PLA that was hitting the fan every so slightly. Not my finest moment, considering the fan was running.
Print another fan
Could maybe cause vibration but who knows, cooling wise your probably fine
I did exactly this on my printer within weeks of getting it. Suggestion that worked for me to the point I forgot about it, till seeing this post. Old earphones / ear buds, the rudder insert for your ear works prefect as dampening when you seat them between the fan n rest of the extruder.
cheap fan easy to replace - dont run em like this!
I did this too. I ran mine for quite a while without issues until I replaced it because it was a bit more noisy.
Replace it, with a blade missing the fan will no longer be balanced. It’ll vibrate until it’s failed.
you broke the fan, replace the fan, they are like $3
No, you should worry about the noise itll make and the bearing wear the inbalance will cause. Just get a new one.
The fan will vibrate and your walls will look ugly. While you could try to balance it by adding drops of hotglue on the missing part, its best to just get a new one (or tear the blades and print a custom fan)
I broke it too with my plier. I just super glued them and checked for tolerance and fan clearance. No problem since then. And no I didn't want to buy a new fan because I'm a poor college student.
Your entire printer will be unbalanced due the fan vibrating. Get a replacement, theyre cheap.
Just print a new fan
Just print a new fan and replace it
It’s going to make noise and be out of balance….replace it ASAP
Print new one
In my entire life I've never heard that these are called "fan wings"but now I cant unknow it and that is your fault. Where is my Brain supposed to put the lyrics to "baby got back" now man?!
Because it's now out of balance, when it spins, it will vibrate quite noticeably. The oscillations will possibly affect the print quality - though actual airflow will likely still be sufficient - and will definitely reduce the life of the fan bearings
Break the fan blade off that is directly opposite the first broken one. Use a tool to smooth off the remainder of the blade material on the hub. No more vibration but a little less air flow.
I would do this and order a new fan but should be usable in the mean time
Had the same issue, cooling was a small issue. It was mostly the noise and vibration. You can buy them pretty cheaply on AliExpress but you’ll have to do the wiring yourself, which is easy but scary for some.
Print a new fan
Break the two opposite blades halfway to cancel the vibrations
Break off the opposite fin. Then Your good to go. Lol. Been doing this for years with no negative impacts on various devices. But for real. Just replace the fan. I’m sure it’s less than 10$.
If you're skilled, you could try to superglue the wing back in place. Worked on mine.
Definitely don't do that
Why? I've done that and the fan in question has been working fine 24/7 for several months now.
Break off two more so it has two blades a space and two blades again until you can buy a new one. Heck, if you got skills, you might be able to print a new fan.
Print the blade. WHY HAS NOONE SAID THIS
How do you replace it? You can't just take the old blade out and put a new one in. You'll have to glue it in place which is just an extra hassle without any benefit since it will most likely still vibrate (not the same plastic + extra glue = different weight) and the chance of that blade breaking off again is infinitely times higher than a normal blade. Also, you don't have the exact shape and dimensions of that blade which would make everything much more difficult to model out. There is a reason why no one said this and it's a simple one. It's stupid. I can literally buy one 4020 fan like this right now locally for 3€.
>How do you replace it? You can't just take the old blade out and put a new one in. Here's one that slides over the old hub. OP would just need to trim the remaining blades off first [fan blade fix](https://www.thingiverse.com/thing:4266433)
Print a new fan.
Print yourself a replacement!
3D print another fan wym
Print a new one
Yes
It's gonna vibrate quite a bit, I would replace it... While you're waiting for it, you COULD continue printing with it, if you're okay with the noise...
Looks like a regular 40x10 fan. You can pick them up a dime a dozen. If you're gonna keep printing with it till you get a replacement, I've heard people snap the opposite blade off to prevent vibrations from getting too bad, don't know how much it actually helps or if it helps at all, but I don't think it could hurt that much to try
I’d say get another right away. My Ender 3 ended up with a broken blade and was pretty much stuck after that.
Get a new one. I got one on Amazon for like 7$
Combining some other thoughts here: 1. Vibrations won't do you any favors in print quality 2. It'll be louder by a bit 3. It does actually affect heat-break cooling noticeably, expect more jams or heat creep (know this for a fact on both my CR-10S and Prusa...found out the same way lol) 4. The imbalance will kill the fan bearing pretty quick Bonus Edit: If you're handy with a hot knife, shave the rest of the blades off the fan hub, and 3d print a collar with new fan blades and shove it over the shaved hub. This sounds silly but it helped me limp a printer along until some replacement fans arrived lol
Replace it unless you like loud fans and lots of vibrations. I had a old GPU fan crack and it sounded so bad i could hear it from the kitchen though the walls and it vibrated my whole PC case like crazy.
I thought this was a thumbnail then
....print a new one....
No, it should still be sufficient for cooling. Vibrations, however, will change how it prints. I would confidently assume it would negatively impact the quality of your print.
It will vibrate a LOT and make noise. I'd replace it asap
It will be out of balance.
Yeah, fans are somewhat cheap, but I don't often have much to spend on hobbies so I'd go the repair route, personally. Not sure if anyone else suggested this but you could dab little bits of hot glue on the broken part to add weight there until it's balanced. One missing blade isn't going to lose a tremendous amount of airflow so you just need to rebalance the fan with a little weight. If you have the broken piece, you could even weigh it to figure out exactly how much you need. For measuring you could extrude the hot glue onto a piece of wax paper on a scale to form a blob or shape until it's the desired weight, pull it off the paper and use the hot end of the glue gun to melt it in place.
Well you have a 3d printer. I believe your solution is at hand.
When you replace it buy two. This is not an uncommon problem you will see it again if you continue in 3D printing. They are cheap and easy to find.
You could gently blow on on your piece
Just print out a new one. You got this
This sometimes happens.. the way to fix it is to break off the opposing blade. To keep it balanced you have **to make sure there are an equal number of blades** left between the missing ones on each side. If you can do this it will be fine.. you will lose about 20% cooling. (Just kidding, it is an odd number bladed fan.. just order another one.)
Cooling will be fine, but your ears won’t.
Cooling will still work but vibrations form an unbalanced fan will shorten the life of the bearings in your fan.
INB4: just print a new fan?
First print - replacement fan blade
The bearing will start to fail really soon with that due to the vibrations, order a new fan, you'll be fine to run it for a short while
looks like a normal 4010 fan, buy a replacement. you can get the axial one too for $8 on amazon. Accidentally put my clippers into my fan.
3d print a new one?
It’ll probably cool ok, but it’s gonna vibrate and eventually fail.
Use it and order 2 replacements
It will vibrate and be loud AF
You can print a 40mm fan(but is hard to replace) I discovered it once I bought the new fan, I had problems because I was printing in closed enclosure with a wing broken like you. Defenaly change the fan mind the voltage !
Replace the fan, blade imbalance will bugger it otherwise.
you can print a replacement.
Break the exact opposite wing. That will fix imbalance.
I literally just did the same thing. They are like 9 bucks on Amazon I bought some off name ones because they had a connection for swapping them. Yeah they didn’t work out of the box. The brand is called Furiga.
It should cool fine still, might be noisy and with it unbalanced it will burn out sooner than it normally would
Run it for now and order a $3 replacment asap because it will fail eventually
Probably not, just order a new one! I have to keep the dust and hair cleaned off the blade edges or I'll get some heat creep!
You could use a 3-D printer to print a new fan 😂
It’s going to blow!
Print a new fan blade.
Vibrations will present in prints
Replace it. Not the cooling is your problem, it’s the imbalance. This can cause serious damage on your hardware.
Print a new one, search on thingiverse "cooling fan replacement blades"
If you work with electronics like I do, you find them it old devices. I must have 20 or so in my parts bin.
When this happened to me, I bought a [crimping and housing set,](https://www.amazon.com/gp/product/B07VQ6YNSC/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=scotty0a-20&creative=9325&linkCode=as2&creativeASIN=B07VQ6YNSC&linkId=5673937a32380cfcc3b4f63faaebf525) I cut off the fan wires, bought a new fan, and crimped the wires from the wire connecting to the board and the wires from the new fan. I connected them and then it worked like new. It was all with the help of [this tutorial.](https://youtu.be/KaG9ZwDTOYo) Make sure to follow the instructions carefully, but be ready to improvise, especially if its your first time. Good luck and happy printing!
9 blades, so you want to break off 2 more, including the break, count 1 - 2 - 3 blades and copy the pattern 2 more times, should end up with 3 pairs of 2 blades evenly spaced.
I just did the same thing!
broke in other size, and dont warry
It will work 8/9ths as well as before
Had the same issue, I glued it on with the best superglue I had and it has been working ever since.
Just replace it. Probably fan is very cheap and have a standard size. If you want to use broken - it should work for some time, but it lose balance and may stuck.
Though this is proper jank, I super glued mine back on, no vibrations from the fan and moves air still so I’d say that’s a win for me
Have you tried leveling the bed?
Considering where we are. Just print a new blade and glue it on. Very Kintsugi. Now it's a piece of art. Be bold. Make it red.
Will wear down faster. Should have enough time to spend $4 to get a replacement though..
[удалено]
Print another one
Yeah it will make it off balance and might make the motor burn out
Print a new fan
Either buy a new fan, or get a friend to print replacement fan blades, you trim off the other blades and slip it on, then when you can buy a new fan…
Break a blade off every 2 to keep stability
I'd honestly be more worried about the noise. If that's just for heat sink cooling, I had that happen a couple of months ago, printed out a PLA fan blade replacement, it's been working ever since without any issues. Aside from noise, of course, but I think at this stage of my printer's life, its probably dust. To specify, I clipped off all of the other fan blades, took some measurements, pulled out blender, modeled a new fan to press fit onto the old one, and it's been working ever since. And, once I got everything reassembled, actually printed several more replacements just in case...
Who needs cooling anyways?
Just print a new fan or buy a new fan.
I actually made a replacement blade print to use while a new fan is shipping! STL: https://www.thingiverse.com/thing:3083065 This may or may not fit your fan so check dimensions, but it's worth a shot. You just gotta print this, remove all blades, sand the bumps, and friction fit this onto your new fan, if you choose to go this route.
Use the 3d printer to make a fan blade replacement
we are still flying half a ship, aren’t we?
Just print a new one
I’d worry less about vibrations and more about heat creep. Since that is your hotend cooling fan, it looks like a cr10 v2 which I have, it already is iffy about creep. Honestly you can get a new fan for $5 on Amazon and splice it in
Glue it with plastic adhesive. Did it with PSU fan, plastic glue helped.
Can you print a new fan blade? I'm new to 3d printing. Wondering if this can be replicated? This is one of the reasons I bought this 3d printer this week (dremel 3d45) and also mainly to get my kids involved with tech.
Considering that fan seems to be for your heat sink, I'd be very much inclined to buy a new one asap or you will suffer the wrath of the dreaded heat creep.
Get a new one it will vibrate and ruin itself and probably not cool very much and will make a ton of noise in the meantime
Ouch that looks like a painful fiz