Figure 29.—Framing hewed timbers.
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Figure 30.—Mechanical aids in cutting timbers. Method: Cut both miter boxes at angle X for ⅓ pitch. Fasten them securely to the floor or to a log, used as a sawhorse, and space exactly the required distance apart to insure that all rafters are cut alike. Then place each rafter in the boxes, back down if any curvature exists, dog rigidly in place and saw to the pattern.
Line A represents the exterior wall face and, if sawed off on line B, parallel with the wall face, overhang of eave will be 1 foot, 6 inches. Any desired overhang may be had and sawing eliminated by fixing the distance C. The irregularly hewed rafter end is preferable to the uniform elliptical saw-cut ends. Finally, hew the upper surface of the rafters to a smooth even bearing to receive the roof sheathing boards.