Isometric Projections Engineering Graphics F Y B Tech

Isometric Projections Engineering Graphics F. Y. B. Tech. SEM - I Dept. of Mechanical Engineering SH 1131 SEM-II Engineering Graphics

Isometric Projections: It is a type of pictorial projection in which all three dimensions of an object are shown in one view. In this, an object is so placed that, its three mutually perpendicular edges are equally inclined with the plane of projection. So all three dimensional axes appear at equal inclinations with each other (120 o). a b SH 1131 SEM-II c Engineering Graphics

Isometric Projections Isometric Planes: The planes representing the faces of the cube are called Isometric Planes. Isometric scale: When one holds the object in such a way that all three dimensions are visible then in the process all dimensions become proportionally inclined to observer’s eye sight and hence appear apparent in lengths. In practice, while drawing isometric projection, it is necessary to convert true lengths into isometric lengths. SH 1131 SEM-II Engineering Graphics

Isometric Projections 4 D 3 S TH 2 NG UE R T 1 0 3 1 ISOM 300 4 LE . 0 C 2 THS NG LE 450 A B Isometric scale ( Line AC ) required for Isometric Projection SH 1131 SEM-II Engineering Graphics

Isometric Projections A B D 120 o E C 120 o F H 30 o M SH 1131 SEM-II G 30 o Engineering Graphics N Base Line

Isometric Projections T. V. F. V. L. H. S. V. L. H . S. V. . F. V X T. V. SH 1131 SEM-II Engineering Graphics

Isometric Projections T. V R. H. S. V F. V X T. V SH 1131 SEM-II Engineering Graphics R. S H. . V

Isometric view if the Shape is F. V. or T. V. SHAPE D H RECTANGLE A D D L A L C D C A B C B B B H ISOMETRIC OF PLANE FIGURES 1 TRIANGLE B 3 1 A 3 2 A B L 3 L A D 1 2 2 4 H PENTAGON E 1 4 D A E 1 D B C 3 D E A D C 2 4 2 B 3 L 1 C A 2 B

Isometric Projections Ellipses can be in any of three planes SH 1131 SEM-II Engineering Graphics 9

Isometric Projections SH 1131 SEM-II Engineering Graphics

Isometric Projections 34 60 25 L= 60 mm H= 25 mm D= 34 mm X SH 1131 SEM-II Engineering Graphics

Isometric Projections Example 2 Draw isometric drawing from given orthographic view O O SH 1131 SEM-II Engineering Graphics 12

Isometric Projections Solution 2 SH 1131 SEM-II Engineering Graphics 13

Isometric Projections SH 1131 SEM-II Engineering Graphics

Isometric Projections 40 FV O X 10 Y 100 10 25 TV 10 30 10 25 O 30 R 20 D SH 1131 SEM-II Engineering Graphics

Isometric Projections FV 40 O 10 45 30 D 10 50 O 80 TV SH 1131 SEM-II Engineering Graphics

Isometric Projections HEX PART 30 20 20 40 O 50 20 15 O 100 SH 1131 SEM-II 20 Engineering Graphics 30 60

Isometric Projections SH 1131 SEM-II Engineering Graphics

Isometric Projections 34 60 25 L= 60 mm H= 25 mm D= 34 mm X SH 1131 SEM-II Engineering Graphics