CIVIL DRAWING EFAT .pdf

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Original filename: CIVIL DRAWING - EFAT.pdf
Title: Engineering Drawing
Author: Rajib

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Engineering Drawing
Md. Raquibul Hasan Rajib
Lecturer (ME)
Dept. of Civil Engineering
Pabna University of Science & Technology

Md. Raquibul Hasan Rajib

1

Engineering drawing:
An engineering drawing, a type of technical drawing, is created within the
technical drawing discipline, and used to fully and clearly define requirements for
engineering items.

Common features of engineering drawings:
Drawings convey the following critical information:


Geometry – the shape of the object; represented as views; how the object will
look when it is viewed from various angles, such as front, top, side, etc.



Dimensions – the size of the object is captured in accepted units.



Tolerances – the allowable variations for each dimension.



Material – represents what the item is made of.



Finish – specifies the surface quality of the item, functional or cosmetic. For
example, a mass-marketed product usually requires a much higher surface quality
than, say, a component that goes inside industrial machinery.

Md. Raquibul Hasan Rajib

2

List of instruments and materials:
 Drawing board ( with clips).
 Drawing Paper.
 T-scale.
 45° and 30°-60° triangles (Set Square).
 A compass.
 12-inch scale.
 One 6H and one 3H pencil.
 Pencil eraser and cleaning rubber.
 Piece of soft cloth to keep drawing clean.

Md. Raquibul Hasan Rajib

3

Preparation for Drawing
• Draw a boarder having 1 inch thickness.
• At bottom right corner draw a box having 5 inch width & 3 inch height ,
known as ‘Title Box’ .( The purpose of the box is to write-down your ID)

1 in

5 in
3 in

Md. Raquibul Hasan Rajib

4

Technique to draw a ‘Title Box’
 Little box thickness is 1/16 & Larger box thickness is 8/16. (There
are normally 16 lines in 1 inch, according to engineering scale)
NAME:

ROLL NO:

DEPT:

COURSE NO:

DATE:

Md. Raquibul Hasan Rajib

5

Scale Drawing

Md. Raquibul Hasan Rajib

6

Freehand Lettering

3/16

• Vertical capital letters are preferred for most technical work. They are
formed within a 6 by 6 grid.
• The distance between the two lines are 3/16.
Md. Raquibul Hasan Rajib

7

Lettering Technique

.

Md. Raquibul Hasan Rajib

8

Clear View

Md. Raquibul Hasan Rajib

9


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