Transcript National 5 Graphic Communication

National 5
Graphic Communication
EXAM KNOWLEDGE
Line Types, Drawing Types, British Standards and
Dimensioning
Line Types
Line Types
Construction
Outline
Hidden
Centre
Folding
Cutting Plane
Drawing Types
2 main types of drawings:
o
Pictorial
o
Orthograhic
Orthographic – 2D
Orthographic – 2D
In Britain we view it in 3rd
Angle Projection
3 views
Elevation
End Elevation
Plan
Extra views
Sectional
True Shape
Surface Development
Pictorial - 3D
There are 4 main pictorial drawings:
A
o
1pt & 2pt Perspective
o
Isometric
B
o
Oblique
o
Planometric
C
E
D
Perspective
1pt & 2pt Perspective
Sketches
Horizon Line
Vanishing Points
Isometric
Isometric
Technical Drawing
Drawn at 30º
True representation
Shows an object
Sectioned to see
internal
Planometric
Planometric
Technical drawing
Base is a true plan,
rotated.
Drawn at 45º/45º
Or
Drawn at 30º/60º
Used for internal
view of a
room/area.
Oblique
Exam Knowledge
Expected to know...
The different pictorials.
The angles of each pictorial.
What each pictorial would be used for.
British Standards
British Standards are the accepted way we apply standards
to work in the industrial and commercial world.
British Standards reduce any faults or confusion that could
be made when developing design based work and ensure
that people can communicate clearly with each other.
It is a technical language that professional people become
accustomed to using.
Sometimes the work is stamped with the Kitemark.
Dimensioning
You must know the types of Dimesnioning:
Parallel
Chain
You must know how to add dimensions to:
Lines
Circles
Angles
Curves
Parallel Dimensioning
Datum Line
Chain Dimensioning
Dimensioning a Circle

Always use the Ǿ symbol when it is a
full circle.
Dimensioning an Angle
63˚
Dimensioning a Curve

Only use the R symbol to donate an arc
or curve.

Must point arrow to the centre.
Spot 8 Faults
There up to 10 faults in this
drawing. Identify 8 of them
and write what is wrong.