Orthographic Projection for 1st yr engineering students

Orthographic projection for first year

1. Orthographic Projection

2. Orthographic Projectionis a
way of drawing an 3D object
from different directions
Usually a front, sideand
planvieware drawn

5. First angle projection
First angle projecting

6. First angle unfolding

7. First angle projection

9. Third angle projection
Third angle projecting

10. Third angle projection

12. Steps
Draw line perpendicular to each other.

13. Contd…
Draw projection lines of the edges.

14. Contd….
Draw front, top and side views.

15. Contd…
Dimension