Crawshaw, Fred D. (Fred Duane), b. 1874, Phillips, J. D. (James David), 1869- joint author · Chicago, New York, Scott, Foresman and company · leaf 151
line is then drawn by placing an edge of a triangle or theT-square so that it passes through the two points. Scale. When an object is too large to be drawn full size onthe sheet, it may be drawn to some fraction of the actual size. 146 MECHANICAL DRAWING Half and quarter sizes are common scales for… … Fig. 152. Lettering Plate 14 DATA FOR DRAWING PLATE 15 Given: The orthographic sketch, Plate 14.Required: To make a pencil mechanical drawing fromPlate 14. Instructions: 1. Draw the border line and calculate the size of the enclosingrectangle as in plate 13. 2. Lay off the dimensions of the object…
Mechanical drawing
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