Circlir Holes
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Thread: Circlir Holes

  1. #1
    Join Date
    Apr 2002
    Location
    San Diego, CA
    Posts
    480

    Circlir Holes

    I haven't bought a dremel yet but i still am wondering how you would make a circular hole to fit a fan...
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  2. #2
    Join Date
    Dec 1998
    Location
    Grand Haven, Michigan, USA
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    11,332
    Get a fan grill and trace around it and mark the holes for the screw to mount is. I personnally use a drill to make the starter hole and 4 screw holes, then I cut out the fan hole with a fine toothed jig-saw. It works pretty fast. Sand or file the edges and install the fan. I've done about 10 this way and they all worked pretty good. I've also cut out for window kits and done some hacking on old AT cased with that same jig saw. Best $25 I ever spent.
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  3. #3
    Join Date
    Nov 2000
    Location
    Escanaba, MI.
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    3,057
    I use a hole saw. much easier on the ears.
    *This space for rent*

  4. #4
    Join Date
    Apr 2002
    Location
    San Diego, CA
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    what is a hole saw...
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  5. #5
    Join Date
    Jun 2001
    Location
    Oklahoma
    Posts
    259
    Dude!!! Buy yourself a $10 nibblier. It's a hand tool that cuts by "nibbling" little by little. Takes alot of time but cuts BEAUTIFULLY!!! 90 degree and circular cuts are no problem for the Nibblier. Only down side is that you have to drill a start hole but that's no problem w/ a drill.
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  6. #6
    Join Date
    May 2000
    Location
    us
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    1,411
    that nibbler is a tool for the patient. it take a long time and can be quite stressful on your hands. but the results are good.

  7. #7
    Join Date
    Dec 1998
    Location
    Grand Haven, Michigan, USA
    Posts
    11,332
    The hole saw is for cutting large round holes for things like door handles in wooden doors. They are kind of expensive and require a hefty drill. I use the jig-saw because I have one and I use it for many things. I also have the drill, but it is a small one and has trouble just cutting 2" circle, let alone 3 1/2" circles.

    Here is a picture of one:



    The largest they had where I found this picture was 2-3/8" and it cost $10 + shipping. Most kits I've seen only go to about 2 1/2".

    I did find this place with hole saws up to 6". The 3.5" hole saw was only $9.11, but the arbor that attaches the blade to the saw was another $10.99.

    Fine toothed metal cutting jig-saw blades are only $1-2. If you were building lots of cases and needed to cute many holes, then the hole saw would be the best idea. It makes very nice holes.
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  8. #8
    Join Date
    Aug 2000
    Location
    Chesapeake, VA, USA
    Posts
    3,463
    I used my dremel and a CAD template to make perfect octagonal holes- cut out on the lines, score, and fold back. Edges are clean and not sharp like you get from a drill or nibbler, and it looks very professional

    ...Or if you're like me, you take all this effork to make the holes look nice and perty, only to discover you can't fit the fans inside the case and have to mount them outside, completely defeating the porpose. DOH!
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