1. Nizwa College of Technology
الكلية التقنية بنزوى
Nizwa College of Technology
Mechanical Engineering Department
Marking out
Done by:
Issa AL-Tobi
Issa al-tobi

2. Marking Out
It means scribing of lines on a metal surface to indicate the profile or outline of the finished component.
Issa al-tobi

3. The need for marking out
It is usually advisable to mark out a component before commencing to work on it.
So that the finished component will have correct size.
It is useful to give allowances for casting & forming components
Issa al-tobi

4. Tools Location tools (surface plate) Scribing equipment (scriber)
General purpose tools (straight edge)
Issa al-tobi

5. Protractor
Issa al-tobi

6. Scribing block & combination square
Issa al-tobi

7. Vernier height gauge
Issa al-tobi

8. Engineers Square
Issa al-tobi

9. Marking(scribing) Tools
Issa al-tobi

10. Use of the scriber
Issa al-tobi

11. How to draw right angle line?
Issa al-tobi

12. Continued
Issa al-tobi

13. Continued
Issa al-tobi

14. How to set divider
Issa al-tobi

15. Continued
Issa al-tobi

16. Continued
Issa al-tobi

17. How to mark on cylindrical components?
Issa al-tobi

18. Theoretical exercise
Issa al-tobi

19. Continued
Issa al-tobi

20. Continued
Issa al-tobi

21. Practical exercise (side 1)
Issa al-tobi

22. Continued (side 2)
Issa al-tobi

23. THE END