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					    Cross Vault Dimension and Purlin Angle Calculator
                                             ENTER
     Angle in Plan between Centerlines =         90      degrees
                          Vault Height =     31.41592    inches
              Main Barrel Ellipse Span =     161.8034    inches
          Adjacent Barrel Ellipse Span =        100      inches      Joe Bartok
           Dimension to Framing Point =      70.71068    inches
measured on x-axis from the Center of the     Main       Vault

Rise to Framing Points for ALL Barrels = 15.263998        15 4/16    inches

            Main Barrel Ellipse Data Major Axis on x-axis
                  1/4 Ellipse Arc Length =   92.549699   92 9/16     inches
             on x-axis Foci from Center =    74.552834   74 9/16     inches
                           Purlin Length =   6.2983967    6 5/16     inches
                Center to Framing Point =    70.71068    70 11/16    inches
           Arc Length to Framing Point =     73.472594   73 8/16     inches
                 Slope at Framing Point =    0.6985556    8 6/16     over 12
           Pitch Angle at Framing Point =    34.936441 degrees
               Deck Angle or Plan Angle =    58.282526 degrees
         Purlin Face tangent to the Curve
                      Angle on the Stick =   63.13064 degrees
                        Saw Blade Miter =    26.86936 degrees
                        Saw Blade Bevel =    17.521825 degrees
   Purlin Face perpendicular to the Curve
                      Angle on the Stick =   70.509708 degrees
                        Saw Blade Miter =    19.490292 degrees
                        Saw Blade Bevel =    25.530275 degrees
     Purlin Face intercepts Valley Ellipse
           Angle from tangent to Curve =     81.327034 degrees
    Angle from perpendicular to Curve =      8.6729665 degrees

                   Valley Ellipse Data Major Axis on x-axis
                  1/4 Ellipse Arc Length =   105.77166   105 12/16   inches
                                   Span =    190.2113    190 3/16    inches
             on x-axis Foci from Center =    89.76706     89 12/16   inches
               Center to Framing Point =     83.12539     83 2/16    inches
           Arc Length to Framing Point =     85.504932    85 8/16    inches
                 Slope at Framing Point =    0.5942269     7 2/16    over 12
        Pitch Angle at Framing Point = 30.719921 degrees

     Adjacent Barrel Ellipse Data Major Axis on x-axis
               1/4 Ellipse Arc Length =   64.779581   64 12/16   inches
          on x-axis Foci from Center =    38.897814   38 14/16   inches
                        Purlin Length =   10.19102    10 3/16    inches
             Center to Framing Point =    43.701603   43 11/16   inches
        Arc Length to Framing Point =     47.89366    47 14/16   inches
              Slope at Framing Point =    1.1302867   13 9/16    over 12
        Pitch Angle at Framing Point =    48.499808 degrees
            Deck Angle or Plan Angle =    31.717474 degrees
      Purlin Face tangent to the Curve
                   Angle on the Stick =   43.00594 degrees
                     Saw Blade Miter =    46.99406 degrees
                     Saw Blade Bevel =    39.575756 degrees
Purlin Face perpendicular to the Curve
                   Angle on the Stick =   39.529338 degrees
                     Saw Blade Miter =    50.470662 degrees
                     Saw Blade Bevel =    34.30932 degrees
  Purlin Face intercepts Valley Ellipse
        Angle from tangent to Curve =     55.664507 degrees
 Angle from perpendicular to Curve =      34.335493 degrees
Joe Bartok

				
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posted:6/24/2011
language:English
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