AutoCAD Mechanical toolset provides several commands that enable you to create section lines, zigzag lines, and break-out lines.
Use AMSECTIONLINE to draw different types of section lines. This command provides the standard section line and two additional section lines with different line types.
The length of the wide lines corresponds to the text height, set for the dimension style GEN-ISO-ORD. If the line is three times shorter than the text height, the program draws the entire line section wider.
The program always determines, from the whole drawing, the next free section line reference letter, and uses that as the default letter. By default, it places section lines on layer AM_10.
Use AMZIGZAGLINE to draw a zigzag line. By default, zigzag lines are placed on layer AM_4.
Use AMBROUTLINE to create a sectional view of a drawing area. This function requires only a few reference points to draw a smooth, curved line.
The section line is a polyline that does not pass through the reference points. The program determines the deformation of the section line by the position of the reference points and value of the SPLINETYPE variable. By default, AMBREAKOUTLINE palces break-out lines on layer AM_4
Use AMSYMLINE to draw lines that are automatically mirrored about a centerline.