Basic HTML Version
3
CLIL in the Lab
Preparing an Isometric Drawing
of a Shape with Curved Features
One way to produce an isometric drawing is to start
with the front corner, then gradually extend this line
out to become the full image. For example, start by
drawing a cube.
1
Look at the object you want to draw from a corner.
2
Draw the corner vertical line.
3
Add any horizontal lines extending from the corner
line, at 30° to the horizontal.
4
Add any vertical lines extending from the horizontals
5
Add any horizontal lines extending from these
verticals and so on, repeating step 4 and 5 as
needed.
To draw parts with curved features, such as circles
and arcs, you need to use a technique called
crating
1
.
1
crating
:
using a box to provide guidelines for drawing
1
First you should draw an isometric box, called a
crate. Ideally, the lines for the crate should be very
faint.
2
Then it is marked where the circle will touch the
edges and these points are joined up.
3
After drawing, the lines for the crate should be
erased.
4
To improve the presentation of your isometric
drawing use the rendering techniques, that
means adding colour to give more realistic
view of what the object could look like. These
techniques are: ‘thick and thin lines’ and
‘shading’.
Now you are ready to produce an isometric
drawing of a shape with linear and curved features.
TASK 1
Produce an isometric
drawing of a bell. Use any
type of bell you can find.
TASK 2
Produce a series of quick
sketches of a house. On
different versions of the
sketch, use ‘thick and
thin lines’ and ‘shading’
to see how these make it
look more realistic.
TASK 3
Produce an isometric drawing of a sports car. Render
this image to make it look even more realistic.
Progetto FOR MECHANICALS_unit_1.indd 39
24/01/