Introduction
Objects to be produced accurately often require more than a pictorial sketch. Multi-view drawings provide an accurate representation of an object which can be used to create a physical object. Typically multi-view drawings are used to show views of the faces of the object as if the viewer is looking directly at that face so that the line of sight is perpendicular to the face. This depicts the surface as the true size and shape.
The idea of orthogonal projections can be demonstrated using a glass box. Place an object in a glass box so that the faces of the object are parallel to the sides of the box. The features of each surface of the object can be projected onto a side of the glass box by drawing lines to indicate the object edges on the glass box surfaces.
In this activity you will design and build a box from a flat sheet of transparency film. You will then use your glass box to help you sketch orthogonal projections of an object and create multi-view drawings.
Objects to be produced accurately often require more than a pictorial sketch. Multi-view drawings provide an accurate representation of an object which can be used to create a physical object. Typically multi-view drawings are used to show views of the faces of the object as if the viewer is looking directly at that face so that the line of sight is perpendicular to the face. This depicts the surface as the true size and shape.
The idea of orthogonal projections can be demonstrated using a glass box. Place an object in a glass box so that the faces of the object are parallel to the sides of the box. The features of each surface of the object can be projected onto a side of the glass box by drawing lines to indicate the object edges on the glass box surfaces.
In this activity you will design and build a box from a flat sheet of transparency film. You will then use your glass box to help you sketch orthogonal projections of an object and create multi-view drawings.
Conclusion
1. How do you determine the orientation of orthogonal projections in a multi-view drawing?
A: The way the front view is set up
2. How would you describe the geometric relationship that exists between the adjacent views of a multi-view drawing?
A: That if you would close it up then you will get the full shape
3. Why is it important to lay out a multi-view sketch with points and construction lines before drawing object lines?
A: To see all sides of the figure or shape
1. How do you determine the orientation of orthogonal projections in a multi-view drawing?
A: The way the front view is set up
2. How would you describe the geometric relationship that exists between the adjacent views of a multi-view drawing?
A: That if you would close it up then you will get the full shape
3. Why is it important to lay out a multi-view sketch with points and construction lines before drawing object lines?
A: To see all sides of the figure or shape