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Old 07-19-2004, 11:44 AM   #1
rack04
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80mm blowhole?

When using a holesaw to cut a blowhole is there a certain side to start the cut? I have never used a holesaw before and don't know if either side will burr. Thanks.
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Old 07-19-2004, 11:47 AM   #2
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You should start from the side that is on the inside of the case so if the holesaw jiggles a little bit you won't be able to see the mark. But you should also cover the area with a masking tape.
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Old 07-19-2004, 12:05 PM   #3
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What size are the screws that typically come with 80mm fans? I am assuming 1/4" but I would like another opinion on which drill bit to use?
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Old 07-19-2004, 01:05 PM   #4
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Looks like it. Measure them to doublecheck.
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Old 07-19-2004, 01:23 PM   #5
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Use this for a guide.
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Old 07-19-2004, 02:45 PM   #6
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i did mine from the inside

just put painters tape on both sides it will help you from scratching the paint

or use that light brown tape (cant rember the real name)
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Old 07-19-2004, 02:52 PM   #7
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Masking
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Old 07-19-2004, 02:57 PM   #8
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I have read somewhere that it is wise to use some sort of cutting oil when making this cut, is this really necessary?
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Old 07-19-2004, 03:02 PM   #9
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IS this steal or aluminum? And it wouldn't hurt. When I cut/drill I just used cooking oil. Worked for me.
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Old 07-19-2004, 03:05 PM   #10
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The case is aluminum.
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Old 07-19-2004, 03:08 PM   #11
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YOu should have no problems then; nice and soft. If you feel to the need to use oil, dont worry you dont need it really.
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Old 07-19-2004, 03:15 PM   #12
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what size is that holesaw for 80mm? Is it 3 1\4
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Old 07-19-2004, 03:20 PM   #13
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Quote:
Originally Posted by (183)Beast
what size is that holesaw for 80mm? Is it 3 1\4
It is a 3" holesaw.
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Old 07-19-2004, 03:40 PM   #14
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3" is 76mm init? anyway i spose if u dont wanna see the very edge of fans etc. will look neater.
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Old 07-19-2004, 03:44 PM   #15
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Quote:
Originally Posted by Chris1712
3" is 76mm init? anyway i spose if u dont wanna see the very edge of fans etc. will look neater.
You are correct, but it is real hard to find a 3.1496063" hole saw
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Old 07-19-2004, 03:50 PM   #16
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Lol, you could drill the hole and touch it up with a drum sander on a dremel.
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Old 07-19-2004, 04:21 PM   #17
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what size is it for 120mm then??
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Old 07-19-2004, 04:22 PM   #18
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4.5" i think. I used a cd as a template. You can use mini-cds for 80mm fans.
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Old 07-19-2004, 04:38 PM   #19
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Quote:
Originally Posted by rack04
I have read somewhere that it is wise to use some sort of cutting oil when making this cut, is this really necessary?

no never ive cut my aluminum and steel cases without oil

you use oil if the bit is going to get hot and a case is very thin no matter what material you should never need oil for cutting your case
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Old 07-19-2004, 04:52 PM   #20
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Quote:
Originally Posted by rockdude14
no never ive cut my aluminum and steel cases without oil

you use oil if the bit is going to get hot and a case is very thin no matter what material you should never need oil for cutting your case

tell that to my old steel case.. i swear that thing was like 4 mm thick..





well not really but that thing took a **** long time to cut
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