Drafting is the universal language of industry and technology that uses lines and symbols to communicate technical designs. It involves creating drawings that represent 3D objects in 2D and show how something can be constructed from different angles. The basic tools for drafting include T-squares, triangles, compasses, protractors, pencils, erasers and other instruments. Drafting has evolved over time from animal hides and cave walls to various papers and now digital drafting using CAD software on computers.
This presentation was made to supplement learning in teaching drafting tools and materials. It is not the sole intention of the author to harm any organization, institution and individual. The author just wanted to inform.
This presentation was made to supplement learning in teaching drafting tools and materials. It is not the sole intention of the author to harm any organization, institution and individual. The author just wanted to inform.
It is a powerpoint presentation that discusses about the topic or lesson of the different Drafting Tools used in Technical Drafting. It also includes some characteristics on each tools.
It is a powerpoint presentation that discusses about the topic or lesson: Types and Examples of Lettering. It also includes the definition, characteristics, types and examples of Lettering..
It is a powerpoint presentation that discusses about the topic or lesson of the different Drafting Tools used in Technical Drafting. It also includes some characteristics on each tools.
It is a powerpoint presentation that discusses about the topic or lesson: Types and Examples of Lettering. It also includes the definition, characteristics, types and examples of Lettering..
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• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
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11. DRAFTING- is the universal language of industry
and modern technology through the application of
special lines and symbols.
MECHANICAL DRAFTING -Mechanical
drafting is the process of creating drawings
which communicate of how something can be
constructed. It is a way of showcasing a 3D
object on a 2D piece of paper and it shows how
the model or part would look-like from each
direction.
12. DRAFTING MATERIALS AND TOOLS, ITS USES/FUNCTIONS
There is a great variety of drafting materials and tools used in mechanical drawing.
The drafting materials and tools discussed in this home task include most of the basic ones
but sufficient enough for your initial understanding about mechanical drawing.
DRAWING INSTRUMENTS
This tool is made up of metal with irregular holes. It is a useful tool to protect the
rest of the drawing when clearing up smudges, unnecessary pencil lines and other
erasures. Drawing instruments are used for drawing and designing purposes. Their quality
is very essential if you want to have good result. Cheaper drawing tools and instruments
do not only provide poor quality results but also do not last long. You have to observe
proper handling and care of drawing instrument if you want them to function accurately.
13. Drawing paper- Various
types of drawing papers are
available for use but hard and
soft surface drawing papers
are highly recommended.
This type does not groove
easily when pressure is
applied to the pencil. Oslo
paper is commonly used but
bond paper is also
recommended.
14. Masking tape-This is used
for fastening the drawing
paper on the drawing table
or drawing board because
it does not damage the
board and it will not
damage the paper if it is
removed by pulling it off.
15. Pencil sharpener- Pencils
should be sharpened
whenever they show sign
of dullness. Various types
and designs are available
in the store for use.
16. Eraser- This is used to
clean the dirt off the
drawing. A soft eraser is
advantageous in removing
smudges and pencil
marks, whereas, a harder
eraser is useful for making
changes and correcting
errors in the drawing.
17. Drawing pencil- This is
one of the most important
tools in drawing. It comes
in various grades. The grade
of pencil to be used depends
on the quality of paper to be
used. You have to take into
consideration also the type
of line work required.
18. Hard pencils - are used where
extreme accuracy is required
especially working on graphs,
diagrams and charts.
Medium pencils - are used
for general purpose work in
drawing.
Soft pencils - are too soft to
be used in mechanical
drafting. They are very useful
for art work of various kinds.
19. Triangular Scales- This is
a tool generally used when
reproducing a drawing in
an enlarged or reduced
form to some regular
proportion. The architect’s
scale is the most commonly
used for general drawing.
Its main function is to
reproduce the
measurements of an object
in full size, reduced size,
and enlarged size.
20. Erasing Shield- This
tool is made up of
metal with irregular
holes. It is a useful
tool to protect the rest
of the drawing when
clearing up smudges,
unnecessary pencil
lines and other
erasures.
21. T-Square- It is a
drawing instrument
used when making
horizontal lines. It is
also used for guiding
triangles when
drawing vertical
lines. It is made of
wood, plastic or the
combination of both.
22. There are three (3) types of T-
square,namely:
1. Fixed Head. The head is
fastened to the blade. It is used
for ordinary work.
2. Movable Head or Adjustable
Head. It has one fixed and one
adjustable head and used only for
occasional drawing.
3. Detachable Head or
Removable Head. It is designed
for comfort when carrying the T-
square.
23. Triangle- It is a three-sided
ruler, which typically has two
equal sides meeting at a 90
degree angle and to a third side
at 45, 30, including 60 degree
angles. It is usually made of
plastic and comes in different
sizes. If in use, the base of the
triangle must rest on the blade
of the T-square. Drawing a line
always starts from the point
near the base going upward.
25. Compass- This
drawing instrument is
used when drawing arcs
and circles. It is used in
a similar way to a
divider. It is composed
of one with the pen leg
and the needle point leg
being held together
with a handle. This
drawing instrument can
be used for both pencil
and inking.
26. Divider- This is a drawing
instrument used when
transferring measurements,
dividing lines and arcs into the
desired number of equal parts. It
can easily transfer accurate
measurements by adjusting the
divider points. Constant correct
practice is necessary before
doing an actual work for a quick
and easy control when use.
27. Protractor- It is a semi-
circular instrument divided
into 180 equal parts, each of
which is called a degree. It is
used to determine gradations
of the degrees when.
Protractor measuring arcs,
angles and circles. High
quality protractor is usually
made of plastic.
28. Drawing Table- A drafting
equipment where the drawing
paper is being attached on its
flat surface to do drafting
works. The board of a drawing
table is positioned at an angle
of considerable degree which
will make the draftsman
comfortable in doing his
drafting jobs. Some of the
drawing boards are adjustable
which it can be placed parallel
to the ground to cover its
compartment. The desks
surface should be kept clean
to get rid of pencil graphite
29. Computers are considered necessities now a
day. The types of computers we use either at
home or at work comes in different names
such as workstations, microcomputers,
personal computer, desktops and laptops. In
technical drafting, computers are very essential
equipment to create, modify, analyse, or
optimize drawings through Computer-aided
design (CAD), also known as computer-aided
drafting (CAD) or computer-aided design and
drafting (CADD). CAD is a powerful software
for technical drafting. This is used to
accumulate the draftsman’s productivity,
improve the quality of design, produce a
database for manufacturing and improve
communications through documentation. A
draftsman should know how to manipulate the
CAD software installed in the computer to
make his designed object more presentable
and modify traditional drafting.
