Orthographic Drawing PROBLEMS PROBLEMS PART-A, FREEHAND SKETCHING For Problems .1 to 3.5 three orthographic views are to be sketched and the space for each part may be kept roughly equal to 5 x 5-in. Draw a horizontal construction line at some reasonable distance from the bottom (about 3/8′). Leave a smaller gap on the side […]
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SYMBOLS USED IN ORTHOGRAPHIC DRAWING For drawings made on very reduced scales like survey maps or for some types of working drawings, we use different symbols to save time and to clearly communicate the feature. These symbols are shown in Fig. 3.21.
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ORTHOGRAPHIC DRAWING FACES OF THE OBJECT There are six main faces of the object namely front, back or rear, left side, right side, top and bottom. That side of the object which contains the larger horizontal dimension is generally fixed as the front side in case of machine drawing, whereas, in building drawing, front side
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Orthographic Writing TOPICS Views selection Alignment of views Orthographic writing steps Basic dimensioning Tagency and intersections View Selection VIEW SELECTION STEPS Orient the object to the best position relative to a glass box. Select the front view. Select adjacent views. The object should be placed in its natural position. The object should presents its features in actual size and shape in orthographic
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