Fig. B-3 shows the plan and elevation of a display box, similar to the one shown in the image on the right - Leaving Cert DCG - Question B-3 - 2017
Question B-3
Fig. B-3 shows the plan and elevation of a display box, similar to the one shown in the image on the right. The design is based on regular hexagonal prism which is t... show full transcript
Worked Solution & Example Answer:Fig. B-3 shows the plan and elevation of a display box, similar to the one shown in the image on the right - Leaving Cert DCG - Question B-3 - 2017
Step 1
Draw hexagon as given
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Answer
Begin by drawing a regular hexagon to represent the base of the display box. Ensure each side is equal in length to maintain the shape.
Step 2
Plan of required Picture Plane, Spectator Point and Vanishing Points
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Answer
Draw the plan view such that the spectator point (S) is positioned 1m from surface B. Mark the picture plane (PP) to contain surface A and establish the horizontal line at 1.2m above the ground.
Step 3
Establish VP1 and VP2 in Perspective Drawing
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Answer
Identify and mark vp1 and vp2 for proper perspective alignment based on the height and angle of the surfaces.
Step 4
Draw rectangular ‘Front Face’ in Perspective Drawing
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Answer
Draw the front face of the box as a rectangle using the established VP1 and VP2 for the required perspective.
Step 5
Complete Perspective of other two front faces
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Answer
Using the established vanishing points and the front face, project and draw the other two front faces of the box.
Step 6
Project and use height to establish perspective of point on back surface
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Answer
Project the vertical height from the ground line to establish the perspective point on surface B.
Step 7
Draw perspective of top edges of back surfaces
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Answer
From the established points, draw the perspective lines for the top edges of surfaces A, B, and C accordingly.
Step 8
Complete Perspective Drawing of truncated prism
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Answer
Finish drawing the perspective of the truncated hexagonal prism using all previous points and lines.
Step 9
Draw development of surfaces A, B and C
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Answer
On a separate diagram, unfold surfaces A, B, and C accurately showing their respective sizes and angles.
Step 10
Lines on surfaces A, B and C in Development
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Answer
Indicate the lines on surfaces A, B, and C, ensuring to maintain the colinearity of the 15° lines drawn previously.
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