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The 3D graphic of gym equipment below, shows a hemisphere (A) and a truncated cone (B) in mutual contact - Leaving Cert DCG - Question A-3 - 2016
Question A-3
The 3D graphic of gym equipment below, shows a hemisphere (A) and a truncated cone (B) in mutual contact. A sphere (C) is also shown in contact with the hemisphere. ... show full transcript
Worked Solution & Example Answer:The 3D graphic of gym equipment below, shows a hemisphere (A) and a truncated cone (B) in mutual contact - Leaving Cert DCG - Question A-3 - 2016
Step 1
Draw the plan of the truncated cone B.
Answer
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Projection from Centre in Elevation: Begin by projecting lines from the apex of the cone down to the base in the elevation view.
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Locate Centre in Plan: Next, establish the center of the truncated cone in the plan view by measuring the base diameter and dividing it appropriately to find the midpoint.
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Outline of Cone B: Draw the outer outline which includes the base and the top edge of the truncated cone. Ensure the diameter at both ends is accurate as per the given elevation dimensions.
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Complete Plan: Finally, fill in the complete plan of cone B by ensuring that it is correctly proportioned and reflects the truncated shape accurately.
Step 2
Draw the plan of sphere C.
Answer
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Constructions in Elevation: Start by sketching the elevation of the sphere, maintaining its circular shape.
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Projections to Plan: Project lines from the elevation downward to the plan view to assist in determining the diameter.
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Locate Centre in Plan: Mark the center of sphere C directly below the projection in the plan view.
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Draw Sphere C in Plan: Finally, using the diameter established in the elevation, draw a complete circle representing sphere C in the plan view. Make sure to keep the proportions consistent.
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Presentation: Ensure that the drawing is neat, with proper labeling and adherence to drawing conventions.