Engineering Drawing and Geometry

angle auxiliary plane auxiliary view axis axonometric projection base beam bolt Cavalier projection center line chart circle cone construction contour contour lines coordinate corners curve cutting plane cylinder detail diagonal diameter distance draftsman drawing drawn Drill edge edgewise view elements ellipse engineer's scale engineering equal equation face Figure front view gage given graphical H-plane hole horizontal line illustrated in Fig inches integral curve isometric layout letters located machine metal method necessary noted object oblique projection obtained orthographic parallel pencil perpendicular perspective picture plane piercing points pipe plane of projection plotted position problem projecting lines radius reference line rivet scale screw screw thread Shaft sheet shown in Fig side sketch slope space specified square standard steel straight line surface symbols T-square tangent thickness thread tion tolerance top view triangle trimetric projection true length VALVE vanishing points vector vertical line welding