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netikras
2y

Let's talk fans. I've skimmed through beQuiet and noctua, but couldn't find the type I need. Are there quiet laptop fans out there?

Here's my case. I have an LED projector. As projectors are, it's somewhat loud. Not painfully annoying, but still. I wonder how could I make it quieter.

I had it disassembled to see what fan it has. It looks like an oversized laptop fan. Like 12cm or so.. I was thinking I could buy a silent fan, tear it apart, take its axis with blades and pop it in the original projector fan case. Problem is, I can't find any quiet laptop fans, be it normal size or oversized. Aren't there any? If so - why? Are there other means to quiet a fan like this down? I mean apart from cleaning and oiling - that's already done.

question

fans

quiet

noctua
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  • 1
    2y
    Another pic
  • 1
    2y
    It's impossible to have a small and quiet fan. Physics.
  • 2
    2y
    @iiii it's definitely not small 😁
  • 3
    2y
    These also are the typical blower fans.

    You can't replace these with a normal one (or maybe you can by altering the backplate a little i think)

    But it may be used to cooldown the lamp too.

    Good luck finding one like that who is quiet enough for you.
  • 0
    2y
    @AvatarOfKaine haven't seen a desktop fan with perpendicular blades
  • 2
    2y
    if you want it quiet and cool, water cool it, and put a huge ass radiator somewhere.

    It's basically moving the heat dissipation somewhere else.

    Or modify the case of the projector to put a huge fan on there, let it spin on moderate speed, to not make a lot of noise
  • 2
    2y
    Maybe cut those "teeth" into the blades? Idk :p
  • 4
    2y
    I'm a laptop fan, but I don't talk about it because I'm quiet.
  • 1
    2y
    Don't you have PWM ? In many cases you don't have to let them go at full speed
  • 0
    2y
    @netikras
    Yes there is quiet fans.
    There's also small fans.
    And then there is fans with throughput (thinking of heat dissipation).

    All three together?
    Talk about special engineering and price.
    That's how things work. Somewhat in general.
  • 0
    2y
    @netikras, ask yourself for @thebiochemic's approaches.
    Water-cooling allows for a DIY flexibility.
    Whereas heat-sinks ergo copper do need less volume.

    Good luck and keep us posted.
    Cheers
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