Regular reminder to 3D printer minders: replace your fans with known good ones! Manufacturers ship trash fans by default, which make a tonne of noise, emit much less air, and waste power too.
Unless you're on a K1, in which case Creality royally fucked you and nobody has fans for you but them.
I haven't tried to replace mine yet. The blower fan on the side for part cooling has some generic ones on AliExpress, but I have not seen them locally. The back enclosure fan is quite generic, but the hotend is a Creality fan. I will use this as a reminder to keep an eye out and buy backups before I need to replace them, especially if I need to ship them.
Just another thing one should look out for when buying a printer.
The blower fan on the side has some generic models and is similar to the Bambu one. However, due to it being mounted to the side panels made of acrylic, you would want a perfect match.
The hotend fan is probably the biggest pain. My first K1 shipped with a dead hotend fan. It is a four-fin 24V fan, which is difficult to get from my local suppliers if I opt for a generic one. It also has a different form factor, similar to some of the previous Creality printers like the CR6 SE, Ender 3, and Ender 5. So, you might need to buy the official Creality one.
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