Design and Technology – Graphics | e-Consult

The scale of a drawing determines the relationship between the size of the object and the size of the drawing on the paper. A smaller scale (e.g., 1:10) means that a smaller dimension of the object is represented by a larger dimension on the drawing. Conversely, a larger scale (e.g., 1:20) means a smaller dimension is represented by a smaller dimension on the drawing.

Larger scales (e.g., 1:10) are appropriate when detail is important and accuracy is paramount. They are used for drawings where precise measurements and dimensions are critical, such as detailed parts drawings or drawings of small components. A larger scale allows for the accurate representation of fine details and makes it easier to read dimensions.

Smaller scales (e.g., 1:20) are suitable for drawings where the overall layout and relationship between parts are more important than precise dimensions. They are often used for plans or drawings of larger assemblies. A smaller scale allows for a more compact representation of the object, making it easier to fit all the components on a single sheet of paper. It's also useful for showing the overall proportions and spatial relationships.

For an investor presentation, a scale of 1:20 might be appropriate for a general overview of the appliance, showing its overall form and how the different components relate to each other. Detailed drawings of specific components, however, would require a larger scale like 1:10 to show the necessary detail.