1. G Function Description
1.2.53 Tool Function: T Code Command
Command form:
T
Description:
Tool function is also called T function. It is used to choose the tools.
We usually use it to change tool in conjunction with M06, we can auto do
tool exchange according to the number of the tools.
Example:
T03 M06; //for change to tool No.3
1.2.54 Spindle Speed Function: S Code Command
Command form:
S
Description:
S function is spindle speed command, specify spindle rev/min (RPM)
or constant linear velocity, it is specified by G96/G97.
Example:
G96 S150 M03; //constant linear velocity on surface, 150 m/min
G97 S500 M03; //keep 500 rev/min
1.2.55 Cyclic Processing Function
Drilling Operation in the bottom of
G Code
Operation the hole
Intermittent
G73
----
feed
Spindle rotates in positive
G74 Cutting feed
direction after dwelling
Spindle positioning stops
G76 Cutting feed and turns an angular
displacement
Retraction
operation
Applications
High speed peck
Rapid traverse
drilling cycle
Cutting feed Left hand tapping cyle
Rapid traverse Fine boring cycle
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