Lining With Pencil And Bevel (-). The bevel is to be set at an angle of 45 degrees, and the lines ag, fg, etc., drawn from the points made by the intersection of the lines already drawn and the working-face, Face A, Fig. 137. Hold the beam of the bevel firmly against the working-face, and use the outside of the blade to guide the pencil. Let the beam of the bevel bear firmly on the working-face.

126. "Gauging" Lines with Pencil and Rule. - These lines, as ik, hl, etc., are to be spaced 1/4" apart, as shown by Face B.

Grasp the rule at a proper distance from its end, in the left hand, and press the forefinger against the working-face. to which the rule is perpendicular, as shown by Fig. 142. With the right hand apply the pencil to the work, and at the same time press it against the end of the rule. In this way, the pencil against the rule, and the fingers of the left hand against the working-face, move along the length of the work, thus producing a line parallel to the working-face. It is not necessary to lay off points, since the distance between the pencil and the edge can always be known by observing the graduations of the rule. In making a line, the pencil will be more easily kept in position if considerable force is used in pressing it against the rule; to prevent this force from displacing the rule, it must be met by a greater force acting in the opposite direction. See arrows c and d.

This is a rapid method of producing lines parallel to the working-face, where exactness is not demanded.

Fig. 142

Operation to be Performed on Face D from A as a Working-Face, Fig. 137.