Quieter Fans

The place to discuss your hardware and software/firmware modifications...
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kartcrg
Posts: 93
Joined: Tue Jul 14, 2015 10:30 pm

Re: Quieter Fans

Post by kartcrg » Wed Dec 09, 2015 4:10 am

Pekish - it says the A4X10 FLX is 5 volts? http://www.amazon.com/noctua-NF-A4X10-F ... +A4x10+FLX

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Pekish79
Posts: 195
Joined: Fri Oct 09, 2015 4:04 pm

Re: Quieter Fans

Post by Pekish79 » Wed Dec 09, 2015 4:36 am

no there are 2

one is the 5v and is wrong
the otehr one is the FLX 12v
http://noctua.at/en/products/fan.html
Image

http://www.amazon.com/40x10mm-Bearing-P ... octua+40mm <<<< THIS ONE

the 5V say 5V on amazon (WRONG ONE)
http://www.amazon.com/noctua-NF-A4X10-F ... octua+40mm

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Pekish79
Posts: 195
Joined: Fri Oct 09, 2015 4:04 pm

Re: Quieter Fans

Post by Pekish79 » Wed Dec 09, 2015 4:41 am

Mach wrote:I recently changed out the extruder and electronics fan for the 40mm Noctua. I bought the Noctua 60 as well but thought cracking the internal case on the power supply more than I wanted to tear into.
I did replace the the 50mm bed fan with a 15x50 24V blower instead of the 50mm fan. So far I'm happy with the noise level and performance. I did so based on this Reddit thread https://www.reddit.com/r/3Dprinting/com ... ud_fan_vs/. I'm still testing and need to make a duct for it but so far so good.
the blower i see there in that thread is 12V make sure urs is 24V
A 50mm Blower fan.
I bought this one: http://uk.farnell.com/sunon/gb1205phv1- ... dp/1568490
50mm x 50mm x 15mm
12V
the other one they link is

http://www.amazon.com/gp/product/B00MJU ... ge_o02_s00
as well 12V

Mach
Posts: 50
Joined: Sun Nov 29, 2015 1:05 am

Re: Quieter Fans

Post by Mach » Wed Dec 09, 2015 4:48 am

Thanks for the heads up. This is the one that I got:

http://www.amazon.com/gp/product/B00W8W ... ge_o09_s00

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Pekish79
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Re: Quieter Fans

Post by Pekish79 » Wed Dec 09, 2015 4:57 am

^_^ that is perfect

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kartcrg
Posts: 93
Joined: Tue Jul 14, 2015 10:30 pm

Re: Quieter Fans

Post by kartcrg » Wed Dec 09, 2015 5:23 am

Thanks dude. Sucks they're ugly and not black haha.
Last edited by kartcrg on Wed Dec 09, 2015 7:08 pm, edited 1 time in total.

jsc
Posts: 1864
Joined: Thu Apr 10, 2014 4:00 am

Re: Quieter Fans

Post by jsc » Wed Dec 09, 2015 8:57 am

In a previous fan thread, someone pointed out to me that blower fans actually throw out air centrifugally, in the same plane as the rotation of the blades. So you will need to work out some mount for it, it is not a simple replacement part. They are also best for high static pressure/low CFM, so would work better with some sort of fan duct.

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helifrek
Posts: 161
Joined: Sat Nov 08, 2014 6:09 pm

Re: Quieter Fans

Post by helifrek » Fri Feb 05, 2016 11:05 am

http://www.frozencpu.com/products/9349/ ... tml?tl=g33

Found this, only 11 dB but also only 2.9cfm airflow.

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willnewton
Posts: 473
Joined: Wed Apr 09, 2014 8:32 pm

Re: Quieter Fans

Post by willnewton » Sat Feb 06, 2016 4:38 am

For all the trouble finding the the correct voltage quiet bed fan, couldn't a voltage divider be used? I just wired one for my leveling probe and it works fine for dropping 12v to 5v.

If you start with a 24v input and add two 10k resistors and you halve the output to 12v.

https://en.m.wikipedia.org/wiki/Voltage_divider

I am not an electro-guru so may be missing something in this simple solution.
I'm finally back to where I started two days ago!

A thread with some stuff in it I update every once in a while. viewtopic.php?f=8&t=9
See some of my stuff http://www.thingiverse.com/willnewton/about

jsc
Posts: 1864
Joined: Thu Apr 10, 2014 4:00 am

Re: Quieter Fans

Post by jsc » Sat Feb 06, 2016 5:41 am

That only works if there is no other load in the circuit, like a fan.

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