Hi guys,
I tried your sugestions but the machine goes crazy, i go on fixtures offset on the "config" menu, put G54 X0 Y0 Z0, on the G55 i put X150 Y50 and Z0 (my mach3 is in millimeter), then i put the G54 and them G55 on the second step, and the machine goes to the center of the machine, goes to X3000 Y1200 or something like that, them i go to the "fixtures offsets" screen and the values change to this crazy numbers...i'm not understanding what's happening

Fixtures offsets is the only way to do that?....I have to make this work fast and simple...
This is the code i tried:
"%
N1 G17 G21
N2 G00
N3 T1 M6
G54
N4 G90 G00 X200. Y0. S4851 M3
N5 Z6.
N6 G81 X200. Y0. Z-10.866 F1000. R2.5
N7 G80
G0X-170Y-83Z0 M8
N8 M9
G55
N9 X200. Y0. Z-10.866 F1000. R2.5
N7 G80
G0X-170Y-83Z0 M8"