Mechanical drawing; a treatise on the drawing of mechanical and machine details (1920)
Jones, Franklin Day, 1879-1967 · New York, The Industrial press; [etc., etc.] · leaf 334
ketchy and still be a good representation of the partdrawn, provided the proportion is somewhere nearfy correct.This is illustrated by the fact that when a mechanical draw-ing which has been made by the use of instruments is tracedfree-hand on transparent paper, the lines may be rough anduneven,… … Fig. 8. Drawing a Circle by turning Pad beneath Pencil which ispivoted between Knee and Little Finger mechanism or designs which are rather complex. As everymachine designer knows, sketches are often very deceptive.Sometimes a certain design or arrangement seems to be en-tirely practicable, when…
Mechanical drawing
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