Page:Sheet Metal Drafting.djvu/234

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220
SHEET METAL DRAFTING

of line DC of Fig. 310 has been placed, the pattern is developed in the usual manner by following the order of development, by sections, which has already been determined. The flat surfaces should be marked to aid the workman in forming the metal. The whole pattern may be produced by copying the pattern which has been developed on the other side of line DC.