drawing lesson 1- instruments

7/30/2019 Drawing Lesson 1- Instruments

1/14

DRAWING

City and Guilds

glmoyo


2/14

200.104 Identifying Drawing Instruments

IDENTIFY INSTRUMENTS AND EQUIPMENTUSED FOR THE PRODUCTION OF GOOD

QUALITY DRAWINGS

glmoyo


3/14

PENCIL

Number ranging from 2B to 2H.

Letters refer to the hardness of the pencillead.

glmoyo


4/14

DRAWING PENCIL TYPES

glmoyo


5/14

PENCIL CHOICE

When sketching (quick drawings and

shading)a soft lead such as 2B is can be used

When drawing precisely a 2H or even a harder

pencil such as a 4H is ideal

The harder type of pencil keeps its sharp edge

for longer and produces very fine lines.

glmoyo


6/14

REFILLABLE PENCIL

Useful especially for constructing a drawing that needsa constant thickness of line.

The refills are available in a range of thicknesses andeither hard or soft leads.

Disadvantages are that the refillable pencils arerelatively expensive

Also, the leads tend to break more easily

glmoyo


7/14

PROTRACTOR

A protractor is used to measure angles.

A typical protractor is a semi-circular piece ofplastic with 180 degrees printed around its curve.

also used in subjects like Mathematics

glmoyo


8/14

COMPASS

A compass allowing the drawing of circles

The drawing shows a bow compass, this is used fordrawing small circles very accurately

Cheap compasses tend to slip on the paper and breakquite easily.

glmoyo


9/14

T-SQUARE

T-Squares are use to draw horizontal lines

useful when constructing accurate orthographic drawingsor architectural drawings

A T-Square is normally used with a drawing board, setsquares and clips

It must be pushed firmly against the edge of the drawingboard when it is being used

glmoyo


10/14

SET SQUARE

Set Squares are used to draw accurate angles

The most common are 45 and 60/30 degrees

When using set squares they should always used along witha T-Square

The Set-square rest on the straight edge of the T-Square

this ensures that the angle drawn is accurate

glmoyo


11/14

BOARD CLIPS

Board clips are used to hold the drawing paper in

position. They simply clip on to the board holding

the paper firmly against the drawing board

glmoyo


12/14

SET SQUARE T-SQUARE AND CLIPS

glmoyo


13/14

RULER

A ruler used to measure distances with lines beingdrawn with T-Squares and Set Squares

Most people use rulers to draw straight lines

But it must be remembered that the edge of a ruler isnot guaranteed to have a perfectly straight edge unlikea good T-Square or Set Square.

glmoyo


14/14

DIVIDER

Divider is used to transfer a measured gap toanother point on a drawing

glmoyo

drawing lesson 1- instruments

Documents