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Thread: Cutting Square Holes

  1. #11

    Join Date
    Feb 2014
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    Quote Originally Posted by Airmutt View Post
    I’m talking about 1/4 inch plywood (marine grade).
    For that job I would use a router. With a router all your holes will be exact copies of your master template, insuring a perfect fit.

  2. #12
    planecrazzzy's Avatar
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    Apr 2014
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    Brrrmidji , Minne-SNOW-ta
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    Never did find out how big this square hole was...

    It would make a difference about how it was approached ...

    This was drilled at the corners so I could FIND the hole after the Mahogany skin was epoxied in place

    The router with a bearing pilot for a guide , made EASY work of cleaning the edges

    Later I cleaned the corners with a file.

    Gotta Fly...
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  3. #13
    Airmutt's Avatar
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    Jan 2018
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    NW. Atlanta GA
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    Try 3/4”x 4 1/4” for starters. All corners are square.
    Dave Shaw
    EAA 67180 Lifetime
    Learn to Build, Build to Fly, Fly for Fun

  4. #14

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    Aug 2011
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    Marietta, GA
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    Quote Originally Posted by Airmutt View Post
    Try 3/4”x 4 1/4” for starters. All corners are square.
    Dave, what are you cutting? Ribs for the Fly Baby, or???

    You're always welcome to use any tools I have.

  5. #15
    rwanttaja's Avatar
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    Jul 2011
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    Seattle
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    Quote Originally Posted by Kyle Boatright View Post
    Dave, what are you cutting? Ribs for the Fly Baby, or???
    Don't have to cut square holes for stock Fly Baby ribs. They're formed of three separate pieces, joined by a cap strip.


    Ron Wanttaja

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