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The 3D graphic on the right shows some make-up items - Leaving Cert DCG - Question B-3 - 2011
Question B-3
The 3D graphic on the right shows some make-up items. The balloon diagram shows an enlarged view of the top of the Lipstick, which is in the form of a right cylinder... show full transcript
Worked Solution & Example Answer:The 3D graphic on the right shows some make-up items - Leaving Cert DCG - Question B-3 - 2011
Step 1
Draw the given elevation and plan and project an end view in the direction of arrow A.
Answer
- Outline Plan: Start by sketching the outline of the lipstick's top view, marking the diameters and key points. Use a compass for curves to ensure precision.
- Elevation: Next, draw the elevation view, accurately reflecting the height and shape based on the outline plan.
- Complete Plan: Combine the outline plan and elevation with proper dimension annotations.
- Project End View: Project an end view in the direction of arrow A, showing the essential details from both the plan and elevation views.
Step 2
Draw the true shape of cut surface S.
Answer
- Establish Dimensions: Calculate and establish the correct lengths and widths for the elliptical cut surface, based on the dimensions provided in the graphics.
- Draw True Shape: Using the established dimensions, draw the true shape of the elliptical cut surface S, ensuring to maintain its proportions accurately.
Step 3
Draw the elevation of the focal sphere and establish focal point and directrix.
Answer
- Elevation of Focal Sphere: Draw the elevation view of the focal sphere according to the specifications highlighted in the 3D graphic, ensuring it is proportional to the lipstick design.
- Focus and Directrix Indication: Mark the focal point clearly on your drawing and draw the directrix line related to the elliptical cut surface S, referencing its position accurately with appropriate labeling.