INTERACTIVE POWERPOINT

TLE-117​ Teaching the Common Competencies in ICT

Tools and Equipment in Technical Drafting

What are the Drafting Tools?

Definition:

Drafting tools are instruments that can be used for measurement and layout of drawings or to improve consistency and the speed for creating standard drawing elements.

DRAFTING TOOLS

This type does not groove easily when pressure is applied to the pencil. Oslo paper is commonly used but bond paper is also recommended.

Drawing Paper

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

​Some text here about the topic of discussion.

Masking Tape

This type does not groove easily when pressure is applied to the pencil. Oslo paper is commonly used but bond paper is also recommended.

Eraser

Pencils should be sharpened whenever they show signs of dullness. Various types and designs are available in the stores.

Pencil Sharpener

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.

Drawing Pencil

DRAWING PENCILS

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.

This is made up of a thin 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

Erasing Shield

A tool generally used whenreproducing a drawing in an enlarged or reduced for to some regular proportion. Its main function is to reproduce the measurements of an object in full size, reduced size, and enlarged size.

Triangular Scale

What are the Drafting Instruments?

Definition:

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 if you want them.

DRAFTING INSTRUMENTS

A drawing instrument used when making horizontal lines. It is also used for guiding triangles when drawing vertical lines. It is made up of wood, plastic or the combination of bot.

T-Square

T-Square

FIXED HEAD – the head is fastened to the blade. It is used for ordinary work.

MOVABLE HEAD / ADJUSTABLE HEAD – it has one fixed and one adjustable head and used only for occasional drawing.

DETACHABLE HEAD / REMOVABLE HEAD – it is designed for comfort when carrying the T – square

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. Commonly used triangles are: a. 30 degrees X 60 degrees

b. 45 degrees

Triangles

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.

Compass

It is 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.

Divider

A semi-circular instrument divided into 180 equal parts, each of which is called degree. It is used to determine gradations of the degrees when measuring arcs, angles and circles.

Protractor

LET'S PRACTICE!

Multiple Choice

It can be used for measurement and layout of drawings or to improve consistency and the speed for creating standard drawing elements.

• Drafting Machine

• Drafting Lab

• Drating Equipment

• Drafting Tools

Multiple Choice

Its main function is to reproduce the measurements of an object in full size, reduced size, and enlarged size.

• Triangle

• T-square

• Triangular Scale

• Ruler

Multiple Choice

They are used for drawing and designing purposes.

• Drafting Equipments

• Drafting Instruments

• Drafting Materials

• Drafting Tools

Multiple Choice

A measuring tool used to layout an angle or an arc.

• Compass

• Divider

• Protractor

• Tape Ruler

Multiple Choice

It is used for drawing vertical and oblique lines.

• Ruler

• Scale

• Triangle

• T-Square

Draw

Draw me a T-Square

Draw

Draw me a Triangle (tool)

Draw

Draw me a Protractor

Draw

Draw me a Compass (tool)

Fill in the Blanks

A

type of T-square has one fixed and one adjustable head and used only for occasional drawing.

Fill in the Blanks

The

is a drawing tool 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.

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A

is used to clean the dirt off the drawing. It is also used to remove unnecessary lines such as construction or sketch lines from the final draft.

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The

type of pencil grade is used where extreme accuracy is required especially working on graphs, diagrams and charts. These are also used for construction lines.

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Triangular Scale is a tool generally used when reproducing a drawing in an

or reduced form to some regular proportion. The architect’s scale is the most commonly used for general drawing. I

Open Ended

What is your understanding of the whole topic?

REFERENCES:

• ​CBLM I Technical Drawing. Module I. 2008. pp. 20-36​

• Shambhu. (2022, April 9). Different drafting materials and tools: Function and their uses. Dream Civil. ​

• Learning Module on MECHANICAL DRAFTING.” Grade 7/8, Department of Education, last modified October 20, 2015, https://lrmds.deped.gov.ph/resources

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