The technic of mechanical drafting a practical guide to neat, correct, and legible drawing (1904)
Reinhardt, Chas. William (Charles William), b. 1858 · New York, The Engineering News Pub. Co. · leaf 13
ordercannot always be recog-nized as such (see Fig.T). Dimension linesshould consist of ob-long dots orrery shortdashes, about 16 or 20to the inch. A suit- Fi£- 6 able blank space in the center should be left for the dimensionproper. As a certain amount of practice with the ordinary rulingpen is… … Fig. 7. tion dashes. I n regard to construc-tion lines, and es-pecially dimensionlines, the ordinary practice differs from the rules laid down here,very thin black ink, pencil or red ink lines being employed todenote those lines. At the same time the tendency in using suchSymbols is to give…
Mechanical drawing
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