Types of orthographic drawing Orthographic drawing (also known as orthographic projection) consists of two types: first angle projection, and third angle projection.
Q. What are the three types of orthographic drawing?
Typically, an orthographic projection drawing consists of three different views: a front view, a top view, and a side view. Occasionally, more views are used for clarity. The side view is usually the right side, but if the left side is used, it is noted in the drawing.
Table of Contents
Q. What are the different types of orthographic projection?
Types Of Orthographic Projection
- First angle projection.
- Second angle projection.
- Third angle projection.
- Fourth angle projection.
Q. Who uses orthographic projection?
An orthographic drawing is a clear, detailed way to represent the image of an object. It may be used by engineers, designers, architects, and technical artists to help a manufacturer understand the specifics of a product that needs to be created.
Q. How do you do orthographic projections?
Steps used to create an orthographic projection
- Choose a front view.
- Decide how many views are needed to completely describe the object.
- Draw the visible features of the front view.
- Draw projectors off of the front view horizontally and vertically in order to create the boundaries for the top and right side views.
Q. Why 2nd and 4th angle is not used?
Overlapping projection views create confusion in the drawing. Therefore the 2nd angle projection system is not used to draw engineering drawings. Similarly when the object is placed in the 4th quadrant both the top and front view will overlap. Therefore fourth angle projection is also not used.
Q. When the axis of solid is perpendicular to HP?
Explanation: When the axis of solid is perpendicular to H.P it is indirectly saying that the base is parallel to the horizontal plane so the projection on to it gives true shape of the base and then we can project and find the other dimensions. 4.
