Graphical Communication Flashcards
What is graphical communication?
Sharing information and ideas using graphics. You use it to develop your ideas and explain to others how to make the product.
There are a standard set of rules (conventions) that designers use so that their drawings can be understood by everyone.
Name three conventions in line drawing
Outlines - thick and dark - show the visible part of the product
Construction lines - thin, feint, continuous lines - show the lines required to construct other lines
Hidden detail lines - dashed lines - show the hidden parts of the product.
What are the three main dimensions in a 3D drawing?
Width, depth and height
Dimensioning adds …
measurement to a drawing.
Dimension lines are
continuous, feint lines showing the distance between two points. There are arrowheads on either end and measurements are added in mm.
What are the two main dimensions in a 2D drawing?
length and width
What is a scale drawing?
a drawing used to accurately represent an object that is too big or too small to be drawn to accurate size. A scale drawing has the same proportions as the original object but they are either sized up, if the object is small, or sized down, if the object is big.
The scale of a drawing is always represented by a ….
ratio
What are the characteristics of a scale drawing?
the real dimensions are shown on the drawing.
the measurements are in mm
scale (ratio) is on the drawing.
Name three graphic techniques
Free-hand sketching
Working drawings
3D oblique drawings
What are the advantages of free-hand sketching?
Idea can be quickly and easily sketched
Changes can be made easily and quickly
You can get your thoughts in order before formalising the drawings
Compare ideas and communicate with others.
What are working drawings?
2D drawings that show only one side of an object. All drawing conventions (lines, dimensions and scale) are included on the drawing.
A working drawing should have a cutting list which is a list of all the materials used and the required finish.
What are oblique drawings?
3D drawings where the front view is facing directly towards the observer, yet shows the true shape of the object.
How do you create the 3D effect for a rectangle?
Parallel lines are drawn from the front face at 45deg and joined.
What is a single vanishing point perspective drawing?
A method of drawing objects realistically, in which the objects become smaller along lines called vanishing lines.
These lines converge at a single point, called the Vanishing Point (VP), in the distance.
