Why Use AutoCAD
Alphabet of Lines
Establishing a drawing correctly is very important, and can become complex if the rules are not followed. There is an “Alphabet of Lines” in accordance with ANSI Y14 that allows the mechanic, fabricator or builder to have a visual image of what the product looks like based on the way the line is drawn.
AutoCAD Shortcuts Guide
Orthographic projection showing internal features of an object, as if the picture plane has cut through it at a certain angle. Also called sectional view.