Engineering Drawing Engineering Drawing is an Universal Language of Engineers to transfer Ideas. Here there are lots of Different type of Sketch (projection) you can differentiate. Prospective Projection :approximate representation view as you see by eye Auxiliary View : use full in dislocation of portion (X-RAY) Orthographic projection : visual ray line , parallel to each other obliq and axonometric view s : 3 view drawing 3 Principle plane Frontal Horizontal Profile Sphere has only ONE VIEW Europe usually use : First angle view Protector : 0.5 Degree Smallest Angle Drafting Scale: Triangle is not available Light Weight pencil : H Drawing sheet Ration : 1: root2 Elevation = Top view Elevation on Vertical Plane SHEET A5 : 148 X 210 A4 : 210 X 297 A3 : 297 X 420 A2 : 420 X 594 A1 :594 X 841 A0 : 841 X 1189 Letter in Dwg : 7:4 3H,4H Pencil for : Center line PENCIL IN ORDER : 18 Light Dark 9H,8H,7H,6H,5H,4H,...
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