Mechanical drawing : a manual for teachers and students (1902)
Cross, Anson Kent · Boston : Ginn & Co. · leaf 115
f drawing boards and T-squares will cause the drawingsto be less exact than those whose arrangement is due to the use ofthe planes placed in front of the object. The views due to the use of the first angle are not so easy to readas those due to the use of the third, for the third angle places… … Left Side Vie fr- rh ^ Right Side View. tical working drawings ; and therefore, this arrangement is adoptedthroughout this book. 192. In the study of projection with advanced classes the choiceof angle is of little importance. The objects may be placed ineither of the angles, and there will be…
Mechanical drawing
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