Dr. M. Shazly
Preparatory Year
Engineering Drawing
Drawing Instruments
Dr. Mostafa Shazly
Dr. M. Shazly
Drafting Media
Pencils
Dr. M. Shazly
Drafting Media
Pens and Ink
Dr. M. Shazly
Drafting Media
Papers and Films
Sizes
Detail Paper
When drawings are not be reproduced by the diazo or blue-line process, you may use an opaque paper, called
detailed paper, as the drawing surface. The higher the rag content (cotton additives) of the paper, the better is
its quality and durability.
Tracing Paper
Tracing Cloth
Polyester Film
Drafting Equipments
T- Square and Board
T-Square standard sizes are:
80 cm, 100 cm, and 120 cm
Standard Board sizes are:
12”x14”, 15”x20”, and 21”x26”
Drafting Machine
Dr. M. Shazly
Drafting Equipments
Triangles
Size ranges in 2” intervals of from 4 to 21 inches
Dr. M. Shazly
Drafting Equipments
Triangles
Protractor
(for non standard angles)
Dr. M. Shazly
Drafting Equipments
The Instrument Set
Dr. M. Shazly
Drafting Equipments
Compass
Dr. M. Shazly
Drafting Equipments
Divider
Dr. M. Shazly
Drafting Equipments
Yellow Rags
(Washcloth)
Dr. M. Shazly
Lines
Line Types
Dr. M. Shazly
Lines
Drawing Horizontal Lines
Dr. M. Shazly
Lines
Drawing Vertical Lines
Dr. M. Shazly
Lines
Drawing Parallel Lines
Dr. M. Shazly
Drawing Perpendicular Lines
Dr. M. Shazly
Lines
Angular Lines
Irregular Curves
Lines
Erasing Lines
Dr. M. Shazly
Measurements Systems
Dr. M. Shazly
Scale
Preferred Scales:
1:1
1:2
2:1
1:4
4:1
1:5
5:1
1:10
10:1
Lettering
Dr. M. Shazly
Dr. M. Shazly
References
• “Engineering Graphics” Giesecke, Mitchell,
Spencer, Hill, Loving, Dygdon, and Novak,
8th Edition, Pearson, 2004
• “Engineering Design Graphics” James H.
Earle, 8th Edition, Addison-Wesley, 1994