![]() Section views are used to show the internal features of a part that are not visible in both the isometric and orthographic views. The section view is a 2D depiction of the part when it’s cut through. In addition to providing more details about a part, the isometric view may also provide information such as installation direction and build orientation. While it’s not always necessary, it is a good practice to include the isometric view in a technical drawing as it makes it easier for the machinist to understand the part geometry. ![]() The isometric view is a 3D pictorial representation of the part. In most cases, two to three orthographic views are enough to correctly describe the entire geometry of a part. Hidden lines may be included in orthographic views to depict essential features that are not visible. They are 2D representations of a 3D object, obtained from various points of view, typically the front, plan, and end. These views carry the majority of the dimensions and tolerances. The orthographic views convey the most important information about a part’s geometry. ![]() They serve as reference points when discussing the contents of the drawing. CoordinatesĬoordinates are usually used in big or complex technical drawings and are placed along the borders of the drawing. The title block’s template (size and content) may be a standard or may be custom. It also contains technical information such as the system of measurement, angle of projection, surface finish requirements, scale, and material. It contains basic information about the part, including the part name, names of the people that worked on the part (design, checking, and approval), the name of the company, etc. The title block is located at the bottom right corner of the document. Technical drawings typically comprise the following, coordinates, a title block, orthographic views of the part, section views, detail views, and notes to the manufacturer. Technical drawings are compulsory when your part features threads, tolerances, or different surfaces finish on different areas.
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