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The 3D graphic on the right shows a unit for holding and charging a cordless phone - Leaving Cert DCG - Question B-2 - 2013
Question B-2
The 3D graphic on the right shows a unit for holding and charging a cordless phone. Fig. B-2 shows an incomplete isometric projection of the unit. The end view and p... show full transcript
Worked Solution & Example Answer:The 3D graphic on the right shows a unit for holding and charging a cordless phone - Leaving Cert DCG - Question B-2 - 2013
Step 1
Draw the given equilateral triangle abe
Answer
To draw the equilateral triangle abe, start by determining the side length from the provided dimensions. Place point a at the origin (0, 0) and mark point b at 50 units along the X-axis. Using a protractor, create an angle of 60° at point a and plot point e. Verify that each side measures equally to confirm it is an equilateral triangle.
Step 2
Draw the axonometric axes X, Y, and Z
Answer
Position the axonometric axes by first drawing axis X horizontally. From the origin, draw axis Y at an angle of 30° to the horizontal, and axis Z at 60° above the horizontal. Ensure that the lengths correspond to the projected measurements provided in the figure. Label the axes accordingly.
Step 3
Draw the end view and plan
Answer
Begin with the end elevation by projecting the semicircles from the base of the 3D graphic. Ensure to place the semicircles in the respective quadrants following the dimensions provided. For the plan, project the outlines of the semicircles and connect them, maintaining proper alignment of all views as per standard projection techniques.
Step 4
Draw the complete axonometric projection
Answer
Finally, incorporate all projections drawn in previous steps into a single axonometric projection. Ensure that the angles of view remain consistent and that all features of the unit are accurately represented in three dimensions. Double-check the angles and lengths to ensure accuracy.