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The 3D graphic on the right shows a delicatessen counter with a sandwich display unit on top - Leaving Cert DCG - Question B-3 - 2015
Question B-3
The 3D graphic on the right shows a delicatessen counter with a sandwich display unit on top. Fig. B-3 below shows an isometric view of the structure. (a) Draw an... show full transcript
Worked Solution & Example Answer:The 3D graphic on the right shows a delicatessen counter with a sandwich display unit on top - Leaving Cert DCG - Question B-3 - 2015
Step 1
Draw an elevation of the structure in the direction of the arrow.
Answer
Begin by sketching the front elevation of the delicatessen counter. Use the dimensions provided in the isometric view. The overall height of the main counter is 30 units, with the sandwich display unit retracted above it. Ensure that the sandwich display unit is correctly illustrated, with appropriate depth and height. To indicate the top surface, position it slightly above the outline of the main structure, maintaining vertical alignment.
Step 2
Project a plan from the elevation.
Answer
To create the plan view, project horizontal lines from the significant points of the elevation drawing. Mark the lengths of the sides accurately according to the dimensions given. The outline should enclose the entire structure, showing both the main counter and the sandwich display unit on top clearly, including any overhangs.
Step 3
Draw an auxiliary elevation of the structure, projected from the plan, which will include the true shape of surface A.
Answer
Begin by establishing the auxiliary view parallel to the surface A at the specified location. Use the projection lines from the plan to accurately project the heights and widths of surface A into this auxiliary view. Outline the dimensions of surface A clearly, showing its true shape without distortion. Ensure to label features properly, and refine the auxiliary elevation to achieve precise accuracy.