ENGINEERING FABRICATION, CONSTRUCTION, AND ARCHITECTURAL DRAWINGS

Figure 1 Example of a Fabrication Drawing

Engineering Symbology Prints and Drawings Volume 2 of 2
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DOE-HDBK-1016/2-93 Engineering Fabrication, ENGINEERING FABRICATION, CONSTRUCTION, Construction, and Architectural Drawings AND ARCHITECTURAL DRAWINGS Rev. 0 Page 1 PR-06 ENGINEERING FABRICATION, CONSTRUCTION, AND ARCHITECTURAL DRAWINGS This chapter describes the basic symbology used in the dimensions and tolerances of engineering fabrication, construction, and architectural drawings. Knowledge of this information will make these types of prints easier to read and understand. EO 1.1 STATE the purpose of engineering fabrication, construction, and architectural drawings. EO 1.2 Given an engineering fabrication, construction, or architectural drawing, DETERMINE the specified dimensions of an object. EO 1.3 Given an engineering fabrication, construction, or architectural drawing, DETERMINE the maximum and minimum dimensions or location of an object or feature from the stated drawing tolerance. Introduction This chapter will describe engineering fabrication, construction, and architectural drawings. These three types of drawings represent the category of drawings commonly referred to as blueprints. Fabrication, construction, and architectural drawings differ from P&IDs, electrical prints, and logic diagrams in that they are drawn to scale and provide the component's physical dimensions so that the part, component, or structure can be manufactured or assembled. Although fabrication and construction drawings are presented as separate categories, both supply information about the manufacture or assembly of a component or structure. The only real difference between the two is the subject matter. A fabrication drawing provides information on how a single part is machined or fabricated in a machine shop, whereas a construction drawing provides the construction or assembly of large multi-component structures or systems. Fabrication drawings, also called machine drawings, are principally found in and around machine and fabrication shops where the actual machine work is performed. The drawing usually depicts the part or component as an orthographic projection (see module 1 for definition) with each view containing the necessary dimensions. Figure 1 is an example of a fabrication drawing. In this case, the drawing is a centering rest that is used to support material as it is being machined.

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