G04

G04- Dwell Time:

        It is used for stopping the tool movement for a specified time.

Commonly G04 is used to

       Hold the axis movements until the chuck rotates in the given r.p.m.
       Hold the axis movements until the coolant gets the required pressure.
       Getting a good surface finishing by allowing the tool to wait for a while before it goes to the next destination.
      

Ex:-

For 2 Seconds delay -

G04 X2.0;

or

G04 U2.0; 

or

G04 P2000; 

G02 and G03

G02:  Clock Wise Movement of the tool.

It is used for making a radius in the component using clockwise motion of the tool.

Format: G02X---Z----R----F-----

G03:  Counter Clock Wise Movement of the tool.

It is used for making a radius in the component using Counter clockwise motion of the tool.

Format: G03X---Z----R----F-----

Lesson-7-G-Codes-G00,G01

List of G codes:

G codes are Preparatory commends :

G00 - Rapid traverse:

It is used for fast movements of the tool when it is not engaged with the job.
In the below picture tool moves from point 1 to 2 rapidly .we can use G00 here why because
tool is not doing any operation in the work piece.

Format : G00X---Z----

G01:- Linear Interpolation:

It is used for tool movements with feed rate when tool is doing some operations
on the work piece.

Format : G01X---Z----F----