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Thread: Fretboard radius

  1. #1
    Join Date
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    Default Fretboard radius

    I suppose that this is a really dumb question, but how does one determine the measure of slope on a radiused fretboard?

    The radius degree on my Cocobolo Ukulele is perfect, but I don't know what its measurement is.
    I want to be able to tell my next builder which slope I want.

    Thanks.
    "Those who bring sunshine and laughter to the lives of others cannot keep it from themselves".

    Music washes from the soul, the dust of everyday living.

  2. #2
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    May 2018
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    Default

    Stew-Mac has gauges to measure the radius of a fretboard but it is pretty easy to make your own. Drill some small holes in a strip of metal the appropriate distances apart and us that to mark the edges of a 2.5” square of thin metal or wood and sand carefully to shape. With one square you can have edges of 7”, 9”, 12” and 16”.
    Brad
    Bradford Donaldson
    Kekaha, HI and Cannon Beach OR
    bradfordj48@outlook.com

  3. #3
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    Default

    Thanks, Brad, but I'm a real dummy about this stuff, and I have no idea what you mean???
    "Those who bring sunshine and laughter to the lives of others cannot keep it from themselves".

    Music washes from the soul, the dust of everyday living.

  4. #4
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    Default

    Maybe this will help.
    Attached Images Attached Images
    Bradford Donaldson
    Kekaha, HI and Cannon Beach OR
    bradfordj48@outlook.com

  5. #5
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    Brad, yes it does!
    I would imagine every luthier should have one, correct?
    "Those who bring sunshine and laughter to the lives of others cannot keep it from themselves".

    Music washes from the soul, the dust of everyday living.

  6. #6
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    A good shop should have a complete set and will be able to tell you your fretboard radius in seconds.
    Bradford Donaldson
    Kekaha, HI and Cannon Beach OR
    bradfordj48@outlook.com

  7. #7
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    Very good!

    Thanks so much.
    "Those who bring sunshine and laughter to the lives of others cannot keep it from themselves".

    Music washes from the soul, the dust of everyday living.

  8. #8
    Join Date
    Mar 2013
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    JoCo, NC (near Raleigh)
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    I'm almost positive Cocobolo uses a 12" radius
    Ukulele:
    Iriguchi Tenor "Weeble" - A, WoU Clarity
    Blue Star 19" baritone Konablaster - DGBE
    Cocobolo 16" SC#1-gCEA, SC SLMU
    Ono #42 19" baritone, Ab, LW
    Imua iET-Bb, M600
    Covered Bridge CLN pineapple - Eb cuatro, SC XLL
    Rogue bari
    Bonanza super tenor, cFAD SC LHU
    Kala KSLNG, Eb SC XLU
    Flea soprano, C LW
    Hanson 5-string tenor, dGCEA
    Bonanza SLN GCEA
    Bonanzalele concert
    Guitars:
    Jupiter #47, G, TI CF127
    Pelem, A, EJ45LP

    !Flukutronic!

  9. #9
    Join Date
    Dec 2010
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    Default

    Quote Originally Posted by Jim Hanks View Post
    I'm almost positive Cocobolo uses a 12" radius
    Thanks Jim!
    "Those who bring sunshine and laughter to the lives of others cannot keep it from themselves".

    Music washes from the soul, the dust of everyday living.

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