Drawing

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Drawing
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Drawing

• why is drawing important?
• communication!

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Drawing
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Drawing
How big is it?
?

• ?

?

• Can you think what might help?

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Ways to Labelling your design

• A materials list and key is always important.
• Dimensions are also important.
• 3. Direct labels are good, but only with
  non-complex structures.
• 4. With complicated designs, scale is better.
  Drawings done to scale are smaller than the
  real thing, but have the correct proportions.
  Therefore you can measure straight off the
  drawing and know a dimension.

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Drawing
iron sheet

• Labels
• Key
• Scale

wire mesh
110
SCALE
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Different Views of the drawing

• You must be able to draw different views of your
  structure.
• Allow people to understand what the shape looks
  like, and also read measurements of surfaces
  easily.
• It is also useful for calculating the amount of
  materials required.

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Drawing

• what is useful about drawing different views?
• calculate area work out how much material
  required

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Drawing Scale

• It is a good idea to decide scale before you
  start.
• As an example, let us say the largest dimension
  on the design is 10m. You want the drawing to
  fill the page, so select an easy number that will
  fit on the page, for example 20cm.
• You can now say that 20cm on the drawing
  represents 10m in real life, or 20cm represents
  1000cm in real life. You always try and write
  scale in its simplest, smallest form, so this
  scale would be 150, or 1cm on the drawing
  represents 50cm in real life.

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Drawing Scale
For example chicken hut
SCALE
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How to visualise dimensions
7 - 3 4
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How to visualise Subtraction
200 bricks
700 bricks
700 - 500 200
500 bricks
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How to visualise Subtraction
100 bricks
700 bricks
600 bricks
30 bricks
570 bricks
700 - 570 130
30 100 130
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How to visualise Subtraction
200 bricks
500 bricks
10 bricks
300 bricks
1 brick
290 bricks
289 bricks
1 10 200 211
500 - 289 211
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Drawing
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Drawing
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Drawing
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Drawing
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Drawing
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Drawing
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Activity

• produce a 3D model of your design

ADD IMAGE