ESAB CROSSBOW - Page 125

ESAB Cutting Systems
CROSSBOW Page 125
G40 – Kerf OFF
This code turns off the kerf compensation after being turned on by G41 or G42. It is not necessary to
program G40 before changing from kerf offset on one side to the other, however, this should not be
done when the torch is on.
G41 – Kerf Left
Turns on kerf compensation to the left of the path.
Figure 102: Kerf Left
G42 – Kerf Right
Turns on kerf compensation to the right of path.
Figure 103: Kerf Right
The programmer usually only considers the kerf direction, allowing the machine operator to enter the
kerf amount, which needs to be determined by measurement of the actual cut width, and will change
with every thickness of material and type of cutting. The controller will automatically offset the cut path
by 1/2 of the entered amount. This puts the edge of the cut along the actual programmed path.
To ensure kerf offset is activated properly, there should be at least a short G00 Rapid Move command
before the G41 or G42. Similarly, to ensure kerf is deactivated properly, there should be at least a short
G00 Rapid Move following a G40.
FORMAT: G41
OR: G42
EXAMPLE: G41 // Activate Kerf Left
OR: G42 // Activate Kerf Right
G40 // Deactivate Kerf Offset
Kerf Width
Tool Path
Kerf Offset
Cut Direction
Programmed Path
Kerf Width
Tool Path
Kerf Offset
Cut Direction
Programmed Path