3D printer hot-end fan replacement
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- Опубликовано: 24 июл 2024
- My Ender3v2 3D printer's hotend cooling fan started getting ridiculously noisy, so it's time to replace it.
After a simple and relatively quick repair, and I'm back to printing!
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This isn't the only way to do it.
It's probably not the best way to do it.
But it's how I do it. 
Наука
The endoscope thing is freaking brilliant. Nice work.
just had this issue a few days in, ive had this exact noise on PC fans over the years and i always take the sticker off the back of the fan and usually theres an easy to remove rubber plug, under that is the uhh bushings? and you can put a drip of machine oil in there to stop that noise. with this fan on the ender 3v2 its like welded plastic on the back, so i just stabbed that with a knife at the seam to dig it out, put a drip of oil in there and sealed it with aluminum tape.
make sure you remove the wire sleeve, one of the clips holding them fans on can get caught on some wire making it not want to come off all the way.
thanks for the vid!
Was stuck with my ender 3 v2 hot end fans and how they went together. Your video helped me out heaps. BZ friend.
Glad to help
When I replaced my fan on my Ender 3 Pro, I added a JST connector near the hotend and it simplifies the fan replacement process. I can prep a few fans ahead and be ready to swap in a new one when it becomes gunked up (from print debris) or noisy. I agree with the other poster- the endoscope use is brilliant.
That's a really good idea.
I've got some more spare fans on order. When I need to replace it in the future, I'll definately add a connector.
When joining a pair of wires like this, I stagger the cuts so there is no chance of shorting out, even if the heat shrink goes bad.
I've had to replace two fans on my hotend already with the Ender 5 Pro. It's usually only the hotend fan that runs continuously that gives the problem. The part cooling fan, which is the other "squirrel cage" style fan that does not always run, usually doesn't give the same issues.
I just solder the connections, same as you did. The last time I replaced it I spent a little extra on a "silent" fan, which is quieter but not actually silent
@@thaphreak The board cooling fan in the base does not run constantly on the 5 Pro. I am not sure if it is linked to the parts cooling or if it has some other sensor that triggers it, but I can confirm it does not run continuously. The 5 Pro also has the 4.2.2 board The power supply fan is darn noisy though in my unit. They did not use Meanwell PSU's in a lot of them, but went for some budget unit.
Good content as always 🤙🏼🇦🇺
I have seen people pull back the sticker and oil the bearing.
That'll probably work temporarily.
Since I had the part, this was not much more effort.
I've done this in an emergency . It usually lasts about 2 to 4 weeks then the bearing noise comes back and the fan speed drops
I should be replacing my hotend this weekend if the part arrives tomorrow. That tuner behind yer printer looks like one I used to have. Don't worry , I don't want it back.
Thanks For Video
looks like the fan needed a clean too so for other people maybe an odd blow out once in a while might help to stop the fan vibrating
thanks for sharing !! , would I ask for the blower fan that the wires of the fan color are blue and yellow, which is the + ?
Not sure. I would have to measure it to be certain.
I'm curious. Roughly how many hours did you have on the fan before it started making noise? I probably haven't got as many hours on my Ender 3 V2 probably around 40 or so. I'm thinking of getting a set of fans from TH3D they are suppose to be a little quieter but still move air
I've had it for about a year and a half, not sure how much "uptime* it had. But this fan runs full time when the printer is on (even if it's not in use) so it's had several 24hr runs, when I started a print in the afternoon then didn't turn the printer of until I remembered the next afternoon.
@@pileofstuff I figured a solution for that with mine after printing a few things. I added an hour or half hour to how long it was suppose to take to print, and set a time for a smart switch to shut off then. I figured with that cushion, I was safe to turn it off. I've got to setup my Octipi and I'll have even better control.
Very satisfying! I bought my Ender 3 after seeing you work on yours, and after making a few useful doohickeys even the Minister of Finance is a convert! I wonder what the side fan is - same config do you think? 🤔
Thanks Mr Stuff! 👍😀
I've just ordered a couple of part cooling fans from different sources that claim to be the correct one.
We'll see in a few months if either of those are telling the truth.
The side fan, which is the part cooling fan, on the Ender 3V2 seems to be different from the original Ender 3. The Original Ender 3, and the Ender 5 series, use a squirrel cage style fan for the parts cooling. That said, you don't need to replace the part cooler fan as often as it only runs when actually printing and doesn't seem to get as much filament residue caught up in.
The other thing to watch is the original Ender 3 uses 24V. I am not sure if the V2 uses 12V or 24V fans
The V2 is also 24 volts.
I have a minor problem with my hot end I need to replace the thirmistor but the grub screw striped out the socket any ideas on how to remove it?
I haven't had to try that yet.
I would start with various other tools to try and grab the screw. If it was impossible, I would have to accept that I might need to replace the block.
Try using the cutter the other way around when stripping works better for me that way, doing it like that for way too many years now :-(
would you recommend and ender 3d printer ? was thinking of the prusa I3mk3s but at 1500ausd its a bit pricey
If you don't mind a bit of tinkering, the Ender3v2 can be a good printer.
Never tried a Prusa, but I'm told they have a lot less of a "learning curve" at the start.
I have a Prusa 3S, works very well for me, but I have no experience of anything else. I went for the home build kit, very satisfying to know that most of the faults with it are likely your own problem 😉
Neat.
Do I have to resolder the wires or can I just connect them mechanically? 5:54
I’m no electrician so please excuse the dumb question 😂
A soldered connection is going to be more reliable.
These little fans don't last very long. I've had to replace the one on my Anet A8 already a couple of times.
I bet you could tear it down, re-lube it, and possibly have it as a spare. Maybe.
Possibly.
In the meantime, I've ordered another spare to have in stock.
I think you only have to peel the label and put a drop of oil on the shaft, or at worse take the clip off and pull the shaft and oil it directly.