Mirror Image On / Off: G15.1 / G50.1
Function and Purpose:-
Mirror image mode can be turned on and off for each axis using G-codes. Higher priority is given to the mirror image setting with the G-codes over setting by any other methods.
Programming Format
G51.1 X__ Y__ Z__ Mirror image ON
G50.1 X__ Y__ Z__ Mirror image OFF
Detailed:-
Use the address and coordinates in a G51.1 block to specify the mirroring axis and mirroring center (using absolute or incremental data), respectively
If the coordinate word is designated in G50.1, then this denotes the axis for which the mirror image is to be cancelled .Coordinate data, even if specified, is ignored in that case.
After mirror image processing has been performed for only one of the axes forming a plane, the rotational direction and the offset direction become reverse during arc interpolation, tool diameter offsetting, or coordinate rotation.
Since the mirror image processing function is valid only for local coordinate systems, the center of mirror image processing moves according to the particular counter preset data or workpiece coordinate offsetting data.
Sample Programs:-
G00 G90 G40 G49 G80
M98 P100
G51.1 X0.0
M98 P100
G51.1 Y0.0
M98 P100
G50.1 X0.0
M98 P100
G50.1 Y0.0
M30.
(SUB PROGRAM O100)
O0100
G91 G28 X0.0 Y0.0
G90 G00 X20.0 Y20.0
G42 G01 X40. D.01F120
Y40.
X20.
Y20.
G40 X0.0 Y0.0
M99
