Blueprint reading; a practical manual of instruction in blueprint reading through the analysis of typical plates with reference to mechanical drawing conventions and methods, the laws of projection, etc . 105. MECHANICAL DRAWING PART II In Part I the instructions and the problems worked out havebeen designed to teach the student the elementary operations ofMechanical Drawing, giving him a knowledge of the instruments,an ability to draw a straight and true line, and to make up simplefigures. A fair degree of drawing ability is now assumed and wecan pass on to more complicated problems. Wherever
Blueprint reading; a practical manual of instruction in blueprint reading through the analysis of typical plates with reference to mechanical drawing conventions and methods, the laws of projection, etc . 105. MECHANICAL DRAWING PART II In Part I the instructions and the problems worked out havebeen designed to teach the student the elementary operations ofMechanical Drawing, giving him a knowledge of the instruments,an ability to draw a straight and true line, and to make up simplefigures. A fair degree of drawing ability is now assumed and wecan pass on to more complicated problems. Wherever we turnfor subjects, however, we find a knowledge of geometrical figuresand their properties is absolutely essential to a clear understandingof the problems chosen and we will therefore turn to a discussionof these geometrical figures and the problems which involve them. GEOMETRICAL DEFINITIONS A point is used for marking position; it has neither length,breadth, nor thickness. LINES A line has length only; it is produced by the motion of a point. A straight line or right line is one that has the same directionthroughout. It is the shortest distance between two points. A curved line is one that is cons
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectmechanicaldrawing
