Parentheses are used to insert comments into a G-code file.

Anything written between an opening parenthesis and a closing parenthesis is treated as a comment and is ignored by the controller during program execution.

Comments are useful for adding notes, explanations, or instructions to improve readability and understanding of a G-code program.

Syntax & Parameters

The opening parenthesis ( ) defines the start of a comment.

The closing parenthesis ) defines the end of a comment.

Example Program 

N10 (My comment)

In this example, the text inside the parentheses is treated as a comment and has no effect on machine operation.