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8.
G40/G41/G42 Kerf Compensation
These functions are used for kerf compensation. Because flame incision and plasma
incision both finally have the existence of kerf when incise route expressed by code is only actual
size of workpiece, the actual incision workpiece without regard to the effect of kerf isn’t needed
size. After set the kerf compensation, the system will automatically work out the effect of kerf
and incise workpiece with actual size.
G41/G42 must match with G40 to be used. If G41/G42 is ignored, the default kerf
compensation is zero; if G40 is ignored, kerf compensation is available.
Format:
G41 //Enable Left Kerf Compensation
…… // incision code
G40 //Disable Left Kerf Compensation
G42 // Enable Right Kerf Compensation
…… // incision code
G40 // Disable Right Kerf Compensation
Example:
( Convex Roof Trapezoid w/Hole )
G21
/* metric unit */
G91
/* relative coordinate */
G99 X1 Y0 I0 J0 /*proportion factor is 1, rotate angle is 0, no mirror image*/
G00 X44.45 Y41.275
/* Rapidly moving to (44.45, 41.275)*/
G41
/* Left Kerf Compensation */
M07
/* Incision beginning*/
G03 X0 Y0 I19.05 J0
/*Counterclockwise Circular Interpolation */
M08
/* Incision ending */
G40
/* Disable Left Kerf Compensation */
G00 X-44.45 Y-41.275
/* Rapidly moving to (-44.45, -41.275) */
G41
/* Right Kerf Compensation */
M07
/* Incision beginning */
G01 X25.779438 Y58.031634 /*Linear Interpolation */
G02 X75.441125 Y0 I37.720562 J-16.756634
/* Clockwise Circular Incision*/
G01 X25.779438 Y-58.031634
/* Linear Interpolation */
G01 X-127 Y0
/* Linear Interpolation */
M08
/* Incision ending */
