Answer to Question #209266 in 3D CAD Modeling for Sphesihle Zuma

Question

1.identify and draw any rectangular object in third orthographic angle projection.

2.explain in detail the steps followed in question 1.

3.draw a bridge from a two point perspective sharing.

4.explain the steps that needed to be followed when constructing a two point perspective.

Answer 1

1.   The Plan View of the rectangular object is drawn as a 'birds eye' view, a view from above. The Front View is drawn as if stood in front of this shape. The Side View is drawn as if stood at the side.

2.   The correct position of each view is shown below. They have been drawn very accurately, using T-Squares and set squares.

 

3.   The bridge from a two point perspective sharing.

4.   Step one: Define the horizon line and the vanishing points. Step two: Draw the corner of the objects (elements of bridge construction) in between the vanishing points. Step three: Draw lines from each end of the corner to each of the vanishing points. Step four: Draw parallel, vertical lines to indicate where the object ends.