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The 3D graphic on the right shows a music stand and conductor - Leaving Cert DCG - Question B-1 - 2013
Question B-1
The 3D graphic on the right shows a music stand and conductor. Fig. B-1 shows an isometric view of a model of the stand. (a) Draw an elevation of the stand looking... show full transcript
Worked Solution & Example Answer:The 3D graphic on the right shows a music stand and conductor - Leaving Cert DCG - Question B-1 - 2013
Step 1
Draw an elevation of the stand looking in the direction of the arrow.
Answer
To draw the elevation:
- Start with the rectangular outline of the stand. Ensure the dimensions match those given in the isometric view, which are height, width, and depth.
- Identify the outline from the plan and draw vertical lines to establish the height.
- Complete the elevation by connecting the appropriate points to represent the true dimensions of the model, ensuring the angle is maintained as per the given direction.
Step 2
Draw a plan projected from the elevation.
Answer
For the plan projection:
- Begin by outlining the base rectangular shape from the elevation view.
- Include reference lines to indicate the width and depth of the stand.
- Add any features that change when viewed from above, such as indentations or extensions, based on the original isometric view.
Step 3
Draw an end view of the stand.
Answer
In the end view:
- Project the heights established in the elevation.
- Draw the outline focusing on the width seen from the end of the stand.
- Ensure the drawing reflects the true form and proportions by accurately transferring the measurements from the side view.
Step 4
Draw an auxiliary elevation of the stand, projected from the plan.
Answer
For the auxiliary elevation:
- Begin with line X1Y1, which is parallel to the plan of surface A. This line will help establish the correct perspective.
- Use projections derived from the plan to determine height and width accurately.
- Transfer heights from the elevation to ensure accuracy in dimensions.
- Draw surface A carefully, verifying shapes and angles as per the projections.
- Finally, complete the auxiliary elevation by connecting lines and cleaning up the presentation for clarity.