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Thread: Install Top Exhaust Fan Through Metal?




  1. #1

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    My brother just got a new tower, and wants to install an exhaust fan at the top of the case. How does he cut a circular hole through the metal? Thanks

  2. #2
    Join Date
    Feb 2002
    Posts
    777

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    I used a lathe type bit in a drill press, you could also use a jigsaw or dremal
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  3. #3
    Join Date
    Nov 2001
    Location
    New England Highlands, Australia
    Posts
    21,907

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    I use a jigsaw. Just mask the top of the case with masking tape, markout the cut and holes, drill your mounting holes and a starter hole for the jigsaw then just carve the piece of steel out. Finish off the edges with a file then peel off the masking tape and give it a cleanup. ;)
    <center>:cheers:</center>

  4. #4
    Join Date
    Jul 2002
    Posts
    0

    Default

    Wiggo Do you use a template when marking the holes to drill?

  5. #5
    Join Date
    Feb 2002
    Posts
    777

    Default

    Just go off the fan, mesure the inside of the fan and use something to draw that size circle (compas, lid, etc.) and your away :thumb:
    Athlon XP 1600+ @ 1662Mhz | Volcano 7+ HSF | Soltek SL-75DRV5 | 256MB Corsair XMS-3000 DDR RAM | 44x44x24 Yamaha CDR-W F1 | 16x Liteon DVD | 40Gig 7200rpm Seagate Barracuda | 20Gig 5400rpm Seagate | GeForce2 MX-400 | SB Live! | RTL8139A NIC | RTL8139B NIC | 12 Fans | 1 x ss Blue cc | 2 x Red Neons | 450W Codgen PSU | Logitech Z-340 2.1 Sub and sats | 17" Osborune Monitor | Win XP Pro | M$ explorer rat and keyboard | Everglide Attack Optical

  6. #6
    Join Date
    May 2002
    Posts
    2,489

    Default

    I use the 3" drill bit and use the fan as a template. I then draw two a diagnol lines to make a cross one like this "/" and another one like this "\" on top of it. That will give the actual center of the fan and the starting point for my drill.
    - Damien

  7. #7
    Join Date
    Nov 2001
    Location
    New England Highlands, Australia
    Posts
    21,907

    Default

    I just measure where I want the center of the fan and markout the hole with a compass (3" dia for 80mm, 3.6" for 92mm and 4.7" for 120mm). Then I line up the fan with the marked hole and drill the pilot holes for the screws (these are then drilled to full size (5-6mm) once the fan is taken away. Then I drill a 3/8" hole just a few mm's inside the cut line then with the jigsaw (using at least a 32pt metal cutting blade) cut almost to the marked line (try just to stay just to the inside of the line) till the hole is cut. Smooth and finish the hole off with a curved back file. :smokin:
    <center>:cheers:</center>

  8. #8

    Default

    These may work. Depending on the situation when he's ready to start cutting we will be able to do it. Thank god for my wind tunnel plus :lips:

  9. #9
    Join Date
    Aug 2002
    Location
    Quebec, Canada
    Posts
    1,369

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    I'm lucky, we have a machine shop at work :D
    I can have as much "fun" as possible, during off-hours that is...

  10. #10

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