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80mm/120mm hole saw sizes? - Page 2

post #11 of 37
Thread Starter 
Quote:
Originally Posted by metalkobra
you could measure it
Yes, I could.

But with a resource like Overclock.net at my disposal...why not just ask?
 
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post #12 of 37
Or you could get one of these, a Dremel with circle cutter and a carbide bit.
LL
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post #13 of 37
Well lets just say that a 120MM fan is the same size as a regular cd!
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post #14 of 37
Cut your holes like this: 3 inches for an 80 mm, 4.5 inches for a 120 thats just enough to cover the walls of the fan like this pic.
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post #15 of 37
CD's are just a tad too big for a 120. if you use it , and you can, stay well inside the line.
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post #16 of 37
I have one of those dremel things but i have no idea what attatchment to use to cut hole in metal..
    
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post #17 of 37
Quote:
Originally Posted by Krunk_Kracker
What hole saw would be the best fit for cutting holes for a 80mm and a 120mm??
I use a holesaw for this and as suggested use tape on the surface you wish to cut.

For a 80mm fan use a 76mm 3" holesaw
For a 120mm fan use a 114mm 4½" holesaw

These make the correct size cutout for the blade clearance.

cheers
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post #18 of 37
Thread Starter 
You guys are awesome! Reps around the table. Much appreciated



fstfrddy, is that your case? That has got to be the cleanest fan install I've ever seen!

EDIT:
Chosen! Is your avatar from Fallot 2???? I LOVE that game!
 
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post #19 of 37
Quote:
Originally Posted by Krunk_Kracker
What hole saw would be the best fit for cutting holes for a 80mm and a 120mm??
Hi Krunk Kracker,

I used a 3" hole saw for the 80mm and a 4 1/2" hole saw for the 120mm on my cases. As you stated go slow, measure twice and cut. You'll end up with a nice "round" holes. I found the hole saws I needed at Home Depot. I'm sure Lowe's or a local hardware store will have the right sizes. Oh and one last thought. I used a 1/2" drill motor on a stand. The RPM's are lower, but gear reduction gives you more torque which is what you'll need.

I hope this helped, :-)
post #20 of 37
Quote:
Originally Posted by xie67
I use a holesaw for this and as suggested use tape on the surface you wish to cut.

For a 80mm fan use a 76mm 3" holesaw
For a 120mm fan use a 114mm 4½" holesaw

These make the correct size cutout for the blade clearance.

cheers
See Krunk...I told you those were the same sizes

But, no, u don't listen to me
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