Wire EDM Machine Operation Chapter 10
Copyright November, 98 Page 10-11 Sodick Inc.
All of these features can be programmed or set manually in the SET screen. However, if
you set any of these features in the SET screen, they may be canceled at the completion
of the program (by M02.) This means that after you do a dry run, you will have to
activate them again.
For this reason, it is wise to include the proper G codes in the program. Then you will not
have to worry about remembering to turn them back on after a dry run.
There are several “G” codes involved with these features:
G05 - Turn on X axis mirror image (offset & taper direction changes)
G06 - Turn on Y axis mirror image (offset & taper direction changes)
G08 - X Y axis exchange
G09 - Cancel mirror codes G05, G06, G08
When you turn on a mirror image, the direction of offset (G41 and G42) will be reversed
automatically in order to machine the shape to size, although the offset register in the run
screen doesn’t show that.
When taper cutting, the taper direction also needs to change. Keep in mind that the
machine is traveling in the reverse direction because of the mirror code. It might seem as
though the taper is also mirrored automatically, but it is not. If you set your job upside-
down on the worktable, but it was programmed face up, you must switch the taper code
G51 to G52 in the program and table to program in the SET screen.
Figure 10-4 on the next page is a chart that shows all of the various possibilities for
mirror image and axis exchange.
When you are finished using mirror image or axis exchange in a program, you MUST
remember to cancel them (with G09.) We recommend placing the cancellation command
just prior to the M02 (end of program.) If you forget to cancel these features prior to the
end of a program, you will receive no alarm, but the machine will still be under the
influence of the feature/s programmed, meaning your next job may be incorrectly run.
The axis under the influence turns red on the CRT.
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