Spacing With Pencil And Rule (). By use of pencil and rule, lay off points a, 1" apart along the whole 1 Fig. 137 is broken in accordance with the principles given in 6. length of the piece, the line of points being kept straight by preserving a uniform distance between them and the working-face B. This distance may be anything that is convenient, and will be sufficiently accurate if determined by the eye.

Fig. 137 Scale, 2" - l'

Face A.

End Elevation.

Face B.

Face C.