To Set The Bevel At Any Given Angle. If an attempt is made to set the bevel directly from lines on paper, it will be found difficult to determine when the tool agrees with the drawing. It is better to transfer such an angle to a board, from the working-edge of which the bevel may be set. Thus, if it is required to set the bevel at the angle abc, Fig. 41, a board, as A, should be lined as follows: from the working-edge gauge the line a'b'; with the dividers, at any convenient radius, describe from b' the arc e'd'; with the same radius describe from b the arc ed; set the dividers so that with one point on e the other will fall on f, and lay off this distance on e'd' locating f' connect b' and f'; the angle a'b'c' will be equal to abc. As a'b' is by construction parallel to the working-edge of the board, the angle between the working-edge and b'c' is equal to the angle abc. If, then, with the beam of the bevel on the working-edge, the blade is made to coincide with b'c', the bevel will be set at the angle abc.

Fig. 40

Fig. 41