Page:Sheet Metal Drafting.djvu/140

126 profile of the barrel at point a, line 2 at point b, and line 3 at point c. Extension lines are carried up into Fig. 171 from points a, b, and c of Fig. 172. At the points where these lines intersect

corresponding lines in Fig. 171, will be the location of the new points a, b, and c of Fig. 171. A curved line traced through these points will give the developed miter line.