������ Nizwa College of Technology Mechanical Engineering Department Marking out Done by: Issa AL-Tobi
Marking Out • It means scribing of lines on a metal surface to indicate the profile or outline of the finished component. Issa al-tobi
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
Tools • Location tools (surface plate) • Scribing equipment (scriber) • General purpose tools (straight edge) Issa al-tobi
Protractor Issa al-tobi
Scribing block & combination square Issa al-tobi
Vernier height gauge Issa al-tobi
Engineers Square Issa al-tobi
Marking(scribing) Tools Issa al-tobi
Use of the scriber Issa al-tobi
How to draw right angle line? Issa al-tobi
Continued Issa al-tobi
Continued Issa al-tobi
How to set divider Issa al-tobi
Continued Issa al-tobi
Continued Issa al-tobi
How to mark on cylindrical components? Issa al-tobi