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 326
is preferable whensketching by the method to be explained to use a pad havinga cardboard back to make it rigid. The size of the pad is notimportant, although an 8- by 10-inch size will be found con-venient for most sketching. A good exercise with which tobegin is that of drawing straight parallel… … Fig. 1. Drawing Straight Parallel Lines by guiding Pencil fromEdges of Sketching Pad or the ring finger next to it is used to guide the pencil, depend-ing on the distance from the edge of the pad to the line to bedrawn. Unless the line is very close to the edge —■ say lessthan one inch — the little…
Mechanical drawing
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