2. Components of Technical Drawing
There are several components that are part of technical drawings. Among the most important components are the title block, the isometric view, the orthographic view, the coordinates, the section view, and the detail view. These aspects of the technical drawing provide details to the manufacturer and allow you to communicate all of the requirements for your part to the manufacturer. Take a look at the following:
Title Block
The title block contains all of the basic information about the part that is going to be produced. It is located in the bottom right corner of the document and includes the name of the part, the company name, the part number, any requirements for materials and finishing, and other important details.
The title block also contains technical information about the part to be made, including surface finish requirements, the angle of projection, system measurements, material, and scale. The engineer or designer who rates the title block can customize the structure and format as much as needed.
Isometric View
Another component of technical drawings is the isometric view. This is the picture view that renders the 3D representations of the part that is being made. 3D representations enable the reader to gain a greater understanding of the part because it is a pictorial representation that shows depth.
An isometric view isn’t necessary for all parts, but providing it helps the manufacturer to understand the geometry of the part better. Moreover, it can provide additional data about the part, such as the direction of installation or the build orientation.
Orthographic View
The orthographic views offer data about the geometry of the part that needs to be produced. It is the 2D view that is known as the primary view. It represents the sides of the object, including the front, left side, right side, top, bottom, and rear.
This view of the 3D object focuses on the features, tolerances, and dimensions. For many parts, two to three orthographic views are enough to show all of the geometry of the part. An orthographic view is a 2D representation of the 3D part from these different points of view.
Coordinates
The coordinates are an important part of technical drawings, as they are the reference points. They are used with larger parts or parts with complex features, and they are located along the borders of the drawing to make it easier to visualize the part that is being produced. They also function as points of reference in communications about the drawing.
Section View
The section view is made by showing a 2D representation of the part after it has been cut through. In other words, it is a slice through the part. This allows a view of the internal features, which are not seen in either isometric or orthographic views.
It will show a cross-section that is along the cut plane that is specified. Section views are frequently positioned in line with the orthographic view; you can place curing lines on the orthographic view to show where the part will be sliced for the section view.
Detail View
The detail view shows the specific details of the orthographic view. This is important when you have orthographic views that have areas that are difficult to dimension. You can place a detail view anywhere in your drawing, and you indicate it with a single letter that shows which area of the orthographic view is being referenced.
