bow-weight-chart by hedongchenchen

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									Note: To get in the ball park. From the chart bellow, enter your total stack and glass option in cells B26 and C26. Grind the three lams in cells E26 : G26. If taper lams go over .125 consider a four stack or m



                                                                                       Mild D/R Longbow - 18" Riser (1 1/2" wide @ fades, .002 taper)

                        total stack                     wood stack               68" bow                       66" bow                       64" bow                       62" bow
   2 x .04 glass         .04 + .05 glass 2 x .05 glass Butt Thickness .04 glass .04 & .05 .05 glass .04 glass .04 & .05 .05 glass .04 glass .04 & .05 .05 glass .04 glass .04 & .05 .05 glass
        0.48                   0.49            0.5           0.4         60        65        70        70        75        80        80        85        90        90        95        100
        0.46                   0.47           0.48          0.38         55        60        65        65        70        75        75        80        85        85        90        95
        0.44                   0.45           0.46          0.36         50        55        60        60        65        70        70        75        80        80        85        90
        0.42                   0.43           0.44          0.34         45        50        55        55        60        65        65        70        75        75        80        85
         0.4                   0.41           0.42          0.32         40        45        50        50        55        60        60        65        70        70        75        80
        0.38                   0.39            0.4           0.3         35        40        45        45        50        55        55        60        65        65        70        75
        0.36                   0.37           0.38          0.28         30        35        40        40        45        50        50        55        60        60        65        70
        0.34                   0.35           0.36          0.26         25        30        35        35        40        45        45        50        55        55        60        65
        0.32                   0.33           0.34          0.24         20        25        30        30        35        40        40        45        50        50        55        60
         0.3                   0.31           0.32          0.22         15        20        25        25        30        35        35        40        45        45        50        55
        0.28                   0.29            0.3           0.2         10        15        20        20        25        30        30        35        40        40        45        50
        0.26                   0.27           0.28          0.18

                                                                               three lams to grind
                          total stack    glass option           0.34        taper     taper     paralel            I usually do a three wood lam stack. Five total counting glass. Stack order most
                             0.42            0.08              0.2775      0.13875 0.13875 0.0625                  of the time (back to belly) : Glass, taper, taper, riser, parallel, glass. The .0625
                        % glass of stack   19.05%             0.13875                                              parallel is good for making good glue lines at the belly fades and up the riser.

                                               0.08             0.09          0.1
                          total stack          0.420           0.430         0.440
                        % glass of stack      19.05%          20.93%        22.73%

     Acceptions
      Piking - 2"             7#           1" off each end adds 7# usually
  riser length - 1"          3.5#          19" riser adds 3 pounds or so the the listed weight                                              45
width at fades - 1/8"         5#           1 3/8" at fades will be 5# lighter than listed above.                                             7      for 70"
      .002 taper              2#           less taper adds, more taper subtracts                                                           -4.5   29.5" Draw
 string follow - 1/2"         2#           subtract 2# for 1/2" follow                                                                     47.5
                                                                                                                                           12.5    limb 1.18"
                                                                                                                                            60
      1/64              0.015625             33/64        0.515625
      1/32              0.03125              17/32        0.53125
      3/64              0.046875             35/64        0.546875
      1/16              0.0625                9/16        0.5625
5/64    0.078125   37/64   0.578125
3/32    0.09375    19/32   0.59375
7/64    0.109375   39/64   0.609375
 1/8    0.125       5/8    0.625
9/64    0.140625   41/64   0.640625
5/32    0.15625    21/32   0.65625
11/64   0.171875   43/64   0.67185
3/16    0.1875     11/16   0.6875
13/64   0.203125   45/64   0.703125
7/32    0.21875    23/32   0.71875
15/64   0.234375   47/64   0.734375
 1/4    0.25        3/4    0.75
17/64   0.265625   49/64   0.765625
9/32    0.28125    25/32   0.78125
19/64   0.296875   51/64   0.796875
5/16    0.3125     13/16   0.8125
21/64   0.328125   53/64   0.828125
11/32   0.34375    27/32   0.84375
23/64   0.359375   55/64   0.859375
 3/8    0.375       7/8    0.875
25/64   0.390625   57/64   0.890625
13/32   0.40625    29/32   0.90625
27/64   0.421875   59/64   0.921875
7/16    0.4375     15/16   0.9375
29/64   0.453125   61/64   0.953125
15/32   0.46875    31/32   0.96875
31/64   0.484375   63/64   0.984375
 1/2    0.5          1     1
r .125 consider a four stack or more.




                           60" bow
                .04 glass .04 & .05 .05 glass
                   100       105       110
                   95        100       105
                   90        95        100
                   85        90        95
                   80        85        90
                   75        80        85
                   70        75        80
                   65        70        75
                   60        65        70
                   55        60        65
                   50        55        60
                   45        50        55

								
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