IN defining the forms and dimensions of solids by means of scale drawings, a very useful method in certain cases is that of metric projection whereby three systems of parallel edges of the solid are ...

Mechanical drawings are an excellent way to convey design information, and while sophisticated 3D modeling is slowly taking over, with some companies accepting files over drawings, the mechanical ...

Freehand sketching is the quickest way to capture initial design ideas on paper before they are forgotten, often done without rulers or templates. Annotation can be added to sketches to show key parts ...