
14.TOOL COMPENSATION FUNCTION NC FUNCTIONS B-63782EN/01
- 174 -
- Increase and decrease
As shown in following table, the travel distance of the tool is increased or
decreased by the specified tool offset value.
In the absolute mode, the travel distance is increased or decreased as the
tool is moved from the end position of the previous block to the position
specified by the block containing G45 to G48.
Increase and decrease of the tool travel distance
G code When a positive tool offset
value is specified
When a negative tool offset
value is specified
G45
G46
G47
G48
If a move command with a travel distance of zero is specified in the
incremental command (G91) mode, the tool is moved by the distance
corresponding to the specified tool offset value.
If a move command with a travel distance of zero is specified in the
absolute command (G90) mode, the tool is not moved.
- Tool offset value
Once selected by D code, the tool offset value remains unchanged until
another tool offset value is selected.
The offset value of D0 is always 0.
Start position
End position
End position
Start position
End position
Start position
Start position
End position
Start position Start position
End position End position
Start position
End position
Start position
End position
Programmed movement
Tool offset value
ctual movement position