Orthographic Projection – Outline – Introduction To Engineering Graphics – Orthographic Projection Introduction – The Six Principle Views – The Glass Box Method – The Standard Views – The Front View – Line Types Used In An Orthographic Projection – Rules For Line Creation And Use – Hidden Lines – Center Lines – Phantom Lines – Break Lines – Line Type Precedence – Creating An Orthographic Projection – Projection Symbol – Auxiliary Views – Orthographic Projection Crossword Puzzle – Orthographic Projection Problems .