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Thread: geometry

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  1. #1
    Join Date
    Apr 2009
    Posts
    5

    Smile geometry

    i need help on how to figure out the formula to get dimensions on 1.5 3 bolt circle on equally spaced...thank you in advanced.

  2. #2
    Join Date
    Jun 2005
    Posts
    232
    (BOLT HOLE CENTRES - PCD = 1.5)
    (NO. OF HOLES = 3)
    (ANGLE TO 1ST = 90)
    (CENTRES X = 0 Y = 0)
    X0. Y0.75
    X-0.65 Y-0.375
    X0.65 Y-0.375
    Tim

  3. #3
    Join Date
    Jul 2003
    Posts
    1220
    360deg / 3 =120

    1st hole @ 0 deg
    X = Cos(0) x 0.75
    Y = Sin(0) x 0.75

    2nd hole @ 120 deg
    X = Cos(120) x 0.75
    Y = Sin(120) x 0.75

    3rd hole @ 240 deg
    X = Cos(240) x 0.75
    Y = Sin(240) x 0.75

  4. #4
    Join Date
    Apr 2009
    Posts
    5
    Thank you guys for your help.

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