SEM I Dept of Mechanical Engineering Isometric Projections 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 ID: 1019780
Download Presentation The PPT/PDF document "Engineering Graphics F.Y. B.Tech." is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
1. Engineering Graphics F.Y. B.Tech. SEM - IDept. of Mechanical EngineeringIsometric Projections
2. 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 (120o).abc
3. 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.
4. 4503000123401234TRUE LENGTHSISOM. LENGTHSIsometric scale ( Line AC ) required for Isometric ProjectionABCD
5. ACDGH30o30oBase LineMNBFE120o120o120o
6. F.V.T.V.L.H.S.V.XF.V.T.V.L.H.S.V.
7. F.VT.VR.H.S.VXR.H.S.VT.VF.V
8. SHAPEIsometric view if the Shape is F.V. or T.V.TRIANGLEABRECTANGLEDCHLDABCDABDCLHLDL123AB312AB312ABHLDL1234PENTAGONABCDE1234ABCDE1234ABCDE ISOMETRIC OFPLANE FIGURES
9. Ellipses can be in any of three planes9
10.
11. L= 60 mmH= 25 mmD= 34 mmX346025
12. 12Example 2Draw isometric drawing from given orthographic viewOO
13. 13Solution 2
14.
15.
16.
17.
18. OFVTVXYO4010252530 R1010010301020 D
19. 401050801030 D45FVTVOO
20. OO20201530603020204010050HEX PART
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31. L= 60 mmH= 25 mmD= 34 mmX346025