A brief explanation of orthographic projections:

Orthographic projections are a two dimensional representation of an object. These drawings are the most common engineering drawing. Orthographic drawings clearly show the faces of an object. These drawings can be easily dimensioned so parts and other items can be made or built. The typical orthographic drawing shows three views of the object to be described. The faces drawn reflect the faces that fully describe the part. The drawing is not limited to three views. There can be up to six views with auxiliary views to show all faces clearly.

 

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