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120mm fan That goes 7200rpm! LOW NOISE TOO!

post #1 of 260
2/14/07 at 11:13pm
Thread Starter 
Okay so ive been asking whats the fastest fan speed, and there is a reason too. cuz if there was a fan that hit these speeds, what would be the point of me making one? DUH. So here is my first major mod!

Here is my 120gb Seagate hard drive that crapped out on me.


Now, to take this guy apart, we need a Freaken Hex Drive.. This screw was hidden away under 2 layers of stickers...


Pop off the top!


Whooooo Shiny!~


Removing the plates


AHhhh.. this is what we are going for! The MOTOR!


Pulled it out by removing 3 screws


BAM! Need a voltimeter to find out which of these need to take the 12v positive and negative.


Now i just need to go to my friends house and borrow his voltimeter!

Anyone want to donate to me a 120mm fan? i broke mine trying to find out how to get the motor off the fan!
If not then i guess i can go buy one... *sigh...

Theoretically, i can get the 120mm fan to spin at 7200 rpm at full voltage to this. on top of that, the bearings are SUPER QUIET! cant even hear it running! amazing... only sound that will come from this fan is the airflow!

--- Edit --- UPDATE!
The video you wanna see...

---- edit --- UPDATE!
mounted the motor/blade assembly into the chassis...
more to come...

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post #2 of 260
2/14/07 at 11:15pm
that'll be loud...all that air moving at that speed...that's all I hear from my fans, not their motors...

but I don't think anyone's ever tried this, so
10000 FPS in Civ 4!!! yaaaay...
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10000 FPS in Civ 4!!! yaaaay...
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post #3 of 260
2/14/07 at 11:22pm
FAIL! And quick. That motor is made to move about 100 grams at 7200rpm with very very little air resistance inside the drive. A 120mm motor is a lot beefier.
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post #4 of 260
2/14/07 at 11:22pm
Wow, that actually does sound like a really good idea...Might have to try it if I could spare a HD... But still, props.
'bout time.
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'bout time.
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post #5 of 260
2/14/07 at 11:28pm
Quote:
Originally Posted by Mootsfox View Post
FAIL! And quick. That motor is made to move about 100 grams at 7200rpm with very very little air resistance inside the drive. A 120mm motor is a lot beefier.
Exactly. And sound will probably come from disruption of the air.

Nice idea, but I have a feeling it won't work out as great as expected.
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post #6 of 260
2/14/07 at 11:29pm
Sounds like a good idea, but at those speeds, it needs to be balanced VERY well.
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post #7 of 260
2/14/07 at 11:32pm
It won't really go at anywhere near 7200 RPM. It's a super tiny motor that's only designed to push a hard disc platter with just about no air resistance. I'd be surprised if you got 1000RPM out of it.
lol hax
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lol hax
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post #8 of 260
2/15/07 at 12:52am
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Never hurts to try... right guys? Keep us posted man, If you get killed, i'll attend your funeral XD...jk But still keep us posted!
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post #9 of 260
2/15/07 at 12:58am
Yea I'm going to have to agree with most of the posts on this one. The difference in torque b/w the fan and the hard disk is HUGE! It still may work fairly well, but you probably won't see 7200 RPM.
My bet is that the work load will fry the little motor that could
Great idea though! I'm interested to see how this goes.
See if you can find the torque or horsepower (probably going to be in watts) of that motor. Then compare it to the specs of the fan that you're looking into buying.
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post #10 of 260
2/15/07 at 12:59am
Very ambitious... but worth a try
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