4.15.7 Example of Mirroring and Coordinate Syetem Rotation: G51/G68
- G51 mirroring example: SAMPL51A.CNC
;Mirror effect on each plane
G92 X0 Y0 Z0
G91
;
G17 G0 X-35. ;XY plan
G92 X0 Y0 Z0
M97 P1234 ;origin route
G51 X Y Z I-1000 J1000 K1000
M97 P1234 ;Mirror image on the X axis
G50
G51 X Y Z I1000 J-1000 K1000
M97 P1234 ;Mirror image on the Y axis
G50
G51 X Y Z I-1000 J-1000 K1000
M97 P1234 ;Mirror image of diagonal third quadrant
G50
;
G18 G0 X35. ;ZX plan
G92 X0 Y0 Z0
M97 P1234 ;origin route
G51 X Y Z I-1000 J1000 K1000
M97 P1234 ;Mirror image on the X axis
G50
G51 X Y Z I1000 J1000 K-1000
M97 P1234 ;Mirror image on the Z axis
G50
G51 X Y Z I-1000 J1000 K-1000
M97 P1234 ;Mirror image of diagonal third quadrant
G50
;
G19 G0 X30. ;YZ plan
G92 X0 Y0 Z0
M97 P1234 ;origin route
G51 X Y Z I1000 J1000 K-1000
M97 P1234 ;Mirror image on the Z axis
G50
G51 X Y Z I1000 J-1000 K1000
M97 P1234 ;Mirror image on the Y axis
G50
G51 X Y Z I1000 J-1000 K-1000
M97 P1234 ;Mirror image of diagonal third quadrant
G50
G0 X-30.
G17 G92 X0 Y0 Z0
M30
;
O1234
G0 X5. Y5. Z5.
G1 X10. F500.
Y10.
X-10.
Y-10.
X10. Y10.
X-10. Y-10. Z12.
Z-12.
G0 X-5. Y-5. Z-5.
M99
Example of G51 Mirroring: SAMPL51A.CNC
- G68 Rotation and G51 Mirroring Example：TS68-51A.CNC
;Mirroring and rotation on the XY plane
G17 G91
G92 X0 Y0 Z0
M97 P0123 ;Original first quadrant path
G51 X Y Z I-1000 J1000 K1000
M97 P0123 ;Mirror image on the X axis
G50
G51 X Y Z I1000 J-1000 K1000
M97 P0123 ;Mirror image on the Y axis
G50
G51 X Y Z I-1000 J-1000 K1000
M97 P0123 ;Diagonal third quadrant mirror
G50
M30
;
;First level subprogram(Rotate Copy)
O0123
M97 P1234 ;original route
G68 X0 Y0 R90.
M97 P1234 ;Rotate 90° Copy
G69
M99
;
;Second level subprogram(original path map)
O1234
G0 X10. Y5.
G1 X10. Y10. F1500.
X10.
X10. Y-10.
X-10.
X-5. Y5.
X-5. Y-5.
X-10.
G0 X-10. Y-5.
M99
G68 Sample Graphics (A)
When we modify the contents of subprogram O0123,we get another path:
;Level 1 subprogram (rotate copy)
O0123 ;（case 1）
G68 X0 Y0 R45.
M97 P1234 ;spin 45°
G69 ;Copy path
G68 X0 Y0 R-45.
M97 P1234 ;spin -45°
G69 ;Copy path
M99
G68 Sample Graphics (B)
;First level subroutine (original path map)
O0123 ;（case 2）
M97 P1234 ;original route
G68 X0 Y0 R45.
M97 P1234 ;Rotate 45°
G69 ;copy path
G68 X0 Y0 R90.
M97 P1234 ;Rotate 90°
G69 ;copy path
G68 X0 Y0 R135.
M97 P1234 ;Rotate 135°
G69 ;copy path
M99
G68 Sample Graphics (C)