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The graphic on the right shows a measuring tape and a storage box for the tape - Leaving Cert DCG - Question C-3 - 2019
Question C-3
The graphic on the right shows a measuring tape and a storage box for the tape. The projections of the storage box are shown in Fig. C-3 below. (a) Draw the given ... show full transcript
Worked Solution & Example Answer:The graphic on the right shows a measuring tape and a storage box for the tape - Leaving Cert DCG - Question C-3 - 2019
Step 1
Draw the given views of the storage box, showing clearly how you located the centre of the 40mm arc.
Answer
To draw the elevation and plan views of the storage box:
- Start with a rectangle for the base dimensions which are 65mm by 25mm.
- Draw two vertical lines for the height of 60mm at the back of the rectangle.
- Mark the rounded corner with a radius of 40mm, centered on the back left side. Ensure to indicate the center point of the arc clearly.
- For the front view, ensure to accurately represent the 40mm arc connecting to the rounded edge.
- Clearly delineate the edges and features as per the projection standards.
Step 2
Project an end view of the storage box.
Answer
For the end view:
- Draw a rectangle representing the width from the end view perspective, which is also 25mm.
- Indicate the height of the box (60mm), maintaining the proportions seen in the elevation.
- Include the 40mm curve at the relevant edge to represent the rounded corner, ensuring the alignment matches the elevation view.
Step 3
Draw a one-piece surface development of the storage box.
Answer
To create the one-piece surface development:
- Start with a flat surface representation of the plan view dimensions (65mm x 25mm).
- Include tabs or flaps for the vertical surfaces that will form the side and back of the box, each maintaining a height of 60mm.
- Represent the curved section, ensuring the correct radius and length to facilitate accurate folding.
- Clearly label each surface to depict how it folds from the flat layout to form the final 3D shape.