I would like to add G90 in front of G54.

[j.hong3MP6V]

Hello.

In my post, only g54 is output, so it moves to strange coordinates.

I want to add g90 like in the picture. Help me.

I am sorry that I am not good at English.

[seth.madore]

What post processor are you using, and what is your machine/control?

In your original code, 5 lines up, you have a G90. I'm not seeing anything in between those lines that would put it back into incremental (G91) mode.

Have you manually inserted the G90 and confirm that behavior is now proper?

[j.hong3MP6V]

OKK VM5

FANUC180is-mb

POST FANUC 

[seth.madore]

And you've in fact confirmed that the G90 is required in two places?
Since you're using a Fanuc based machine, do you also has a macro for the tool change (it's typically O9001)? I'm wondering if it's leaving the machine stuck in G91

[j.hong3MP6V]

The tool change macro is being used like this.

O9020;

;

(M6-SUB)

G91 G28 Z0;

M6;

T#20;

M99;

%

[seth.madore · Accepted solution]

So, we "could" edit the post to force out a G90, or you could (more properly) append a G90 into your macro, right after the T#20;

So:

M6;

T#20;

G90;

M99;

[j.hong3MP6V]

Thank you! Thanks to you, I was able to solve it.