Explain the benefits and limitation of using pictorial techniques to represent a given engineering component?

Answer 1

The main advantage is that it is quick and easy to put your design or idea on paper. Another advantage of drawing free hand is that you can see what you are doing and how it's coming along. A mechanical orthographic drawing doesn't have that advantage. It can be very accurately but it can be quite hard to understand if you don't have a basic mechanical understanding or if you're dealing with engineers or technical people such as engineers. This can be because of the various orthographic views it can be difficult to get a clear picture of how the different views fit together to form the final part of a product. Also the orthographic drawings can get cluttered more easily than free hand drawings. The pictorial techniques can also be colored and shaded to give it a better look which helps it to be more visually understandable. With free hand you can also draw it to scale.

Answer 2

Teaching while using the pictorial technique is bound to achieve high levels of understanding among visual students. This technique is effective in drawing the attention students. However, it would ineffective while teaching technical topics with many calculations.

Answer 3

Isometric drawings

Advantages:

0 Know what the object should look like when completed

0 Easy to draw

0 Quick to draw

0 it will show 3 side of the drawing clearly. But 1 or 2 point perspective drawing will give more detail.

0 assists you in drawing the primary axis lines

0 Isometric drawings are drawn to the same scale along all three axes (x,y,z) so are useful for giving a sense of relative dimensions, and three dimensional scale. Measurements

0 can also be taken from the drawings for items that lie along or parallel to an axis.

0 they can provide an overall view of a given part/assembly/design

Disadvantages:

0 With the various orthographic views it can be difficult to get a clear picture of how the different views fit together to form the final part.

0 Not all views shown i.e the base

0 Dimensions not always shown

0 Time consuming when drawing circles

0 Hidden detail not always shown

Oblique drawings

Advantages:

0 When the item is being made the person making it knows all information needed and knows what needs to be done

0 easy enough to do with simple shapes

0 Its a simple way of projecting the third dimension from a flat 2 dimensional drawing

0 Hidden detail is shown

Disadvantages:

0 The other faces on the drawing are at distorted angles

0 but not very convincing where other shapes are concerned. It varies from true perspective in that the lines don't converge at vanishing points

0 Can take longer to produce the drawing

by

C.E.O of O'Rourke Industrials

Answer 4

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