400 likes | 948 Views
Given This! . Draw this! . Types of Axonometric Projection. Isometric
                
                E N D
1. Chapter 14 Axonometric Projection (Pictorial Drawing) 
2. Given This!   
3. Draw this!  
4. Types of Axonometric Projection Isometric  has equal foreshortening along each of the three axis directions
Dimetric  has equal foreshortening along two axis directions and a different amount on the third axis
Trimetric  has different foreshortening along all three axis directions 
5. Types of Axonometric Projection 
6. Isometric Projection The projections of the edges of a cube in isometric projection make angles of 120 degrees with each other
 
7. Isometric Projection Lines of an isometric drawing that are not parallel to the isometric axes are called nonisometric lines
These lines are not equally foreshortened
 
8. Isometric Projection Isometric scales can be used to draw correct isometric projections
All distances are approximately 80% of true size
 
9. Isometric Drawings  Isometric drawings, unlike isometric projections, are drawn using the full length measurements of the actual drawing and lacks foreshortening
The isometric drawing is about 25% larger than the isometric projection 
10. Iso Paper 
11. Making an Isometric Drawing 
12. Sketch an Isometric Drawing 
13. Iso Paper 
14. SOLUTION 
15. Sketch an Isometric Drawing 
16. Iso Paper 
17. SOLUTION 
18. Hidden Lines and Centerlines Hidden lines are omitted unless they are needed to make the drawing clear
Center lines are shown if they are needed to indicate symmetry or if they are needed for dimensioning 
19. Angles in Isometric Angles project true size only when the plane containing the angle is parallel to the plane of projection
An angle may project to appear larger or smaller than the true angle depending on its position 
20. Circles in Isometric If a circle lies in a plane that is not parallel to the plane of projection, the circle projects as an ellipse
Ellipses can be constructed using offset measurements 
21. Ellipses in Isometric Approximate ellipses can be constructed from arcs
 
22. Drawing Ellipses 
23. Drawing Isometric Cylinders 
24. Irregular Objects 
25. Irregular Objects 
26. Curves in Isometric 
27. Screw Threads in Isometric Parallel partial ellipses equally spaced at the symbolic thread pitch can be used to represent screw threads
 
28. Arcs in Isometric 
29. Intersections 
30. Spheres in Isometric 
31. Isometric Sectioning Isometric sectioning is useful in drawing open or irregularly shaped objects
 
32. Isometric Dimensioning Isometric dimensions are similar to dimensions on multiview drawings but should match the pictorial style
 
33. Exploded Assemblies 
34. Piping Diagrams 
35. Sketch an Isometric Drawing 
36. Iso Paper 
37. Solution 
38. Sketch an Isometric Drawing 
39. Iso Paper 
40. Solution