Post on 21-Dec-2015
National 5 National 5 Graphic CommunicationGraphic CommunicationEXAM KNOWLEDGE
Line Types, Drawing Types, British Standards and Dimensioning
Orthographic – 2DOrthographic – 2DIn Britain we view it in
3rd Angle Projection 3 viewsElevationEnd ElevationPlan
Extra viewsSectional True ShapeSurface Development
Pictorial - 3DPictorial - 3D
There are 4 main pictorial drawings:
o 1pt & 2pt Perspective o Isometrico Obliqueo Planometric
E D
C
B
A
IsometricIsometric
Technical DrawingDrawn at 30ºTrue
representationShows an object
Sectioned to see internal
PlanometricPlanometric
Technical drawingBase is a true
plan, rotated.Drawn at 45º/45ºOrDrawn at 30º/60ºUsed for internal
view of a room/area.
Exam KnowledgeExam Knowledge
Expected to know...
The different pictorials.The angles of each pictorial.What each pictorial would be used for.
British StandardsBritish StandardsBritish 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.
DimensioningDimensioning
You must know the types of Dimesnioning:
ParallelChainYou must know how to add dimensions
to:LinesCirclesAnglesCurves
Dimensioning a CurveDimensioning a CurveOnly use the R symbol to donate
an arc or curve.
Must point arrow to the centre.
R15R15