Introduction of Drawing Instrument
What will you learn from this Chapter?
In this chapter, you will learn
- The various uses for instruments in drawings
Introduction of Drawing
Drawings assist us in transforming our ideas and thoughts
into a finished product. Engineering industries also require and use drawings
because they are required and employed at various phases of the development of
an engineering product. Engineering drawing is distinct from artistic drawing,
which is intended to convey aesthetic, philosophical, and abstract concepts.
Drawing Board
Soft wooden platens make up the drawing board. It is
necessary to ensure that the drawing board's working surface is almost
perfectly planned. The usual drawing board sizes are indicated in the table
below. For engineering students, a D2 size drawing board is usually
recommended.
The usual drawing board sizes are listed below.
Designation |
Sheet Size |
L x W (mm) |
D0 |
A0 |
1500 X 1000 |
D1 |
A1 |
1000 X 700 |
D2 |
A2 |
700 X
500 |
D3 |
A3 |
500 X 500 |
Drawing Sheet
A drawing sheet is a piece of paper on which pencil drawings
are made. Drawing sheets come in a variety of sizes, as illustrated in the
table below. A2 size drawing sheets are preferred for engineering students'
drawing practice. The following table shows the appropriate sizes for various
drawing sheets.
Designation |
Size (mm) |
A0 |
841 x 1189 |
A1 |
594 x 841 |
A2 |
420 x
594 |
A3 |
297 x 420 |
A4 |
210 x 297 |
Mini Drafter
This is a tool that allows you to easily draw parallel or
sloped lines. A clamping mechanism, which is an integral part of the
instrument, is used to secure it to the top left corner of the drawing board.
Set Squares
Set squares are a combination of 45° and 30°-60° set squares
that are used to create parallel, inclined, and perpendicular lines. They're
made of acrylic that's translucent.
Compasses are usually divided into two sizes: a large compass
and a small spring bow compass. To create arcs or circles, use these. A needle
point and a pencil point are found on each compass.
Divider
Dividers come in two sizes, similar to compasses. One divider
is a huge spring bow divider, while the other is a little spring bow divider.
More Topic Related to:
HOW TO CALCULATE 50 KG CEMENT BAG VOLUME
SAARC के देशों को याद करने की ट्रिक
विधान परिषद वाले राज्य याद करने की ट्रिक
à¤ारतीय मानक समय रेखा पर पडने वाले à¤ारतीय राज्य याद करने की ट्रिक
JUNIOR ENGINEER CIVIL SOLVED PAPER
Comments
Post a Comment