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Notes on mechanical drawing (1922)

Wallis, Rolland S. [from old catalog], Iowa state college of agriculture and mechanic arts, Ames. Dept. of engineering extension. [from old catalog] · Ames, Iowa, Engineering extension department, Iowa state college · leaf 12

An illustration from Notes on mechanical drawing, 1922, leaf 12
15°to 30 … Offset (b)Fig. 10.—Ruling- positions for drawing pencil and pen. Neatness and speed in penciling may best be obtained by doing allblocking out in very lightly penciled lines. These lines are necessarilyindefinite in length. As soon as the necessary intersections are ob-tained, the portions of these…

Mechanical drawing

Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.

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