Milling with 5 axis

[tsaladyga]

Hey all,
We have an Okuma 80yb Vertical 5 axis mill/turn. I am trying to face mill a part, just a simple centerline cut on a pad. The problem is even though I programmed it for a 6" radius, the machine moves to 12". Is there a G or M code that tells the machine NOT to multiply my values?
Thanks,
My code looks like this:

590(2.5" FACE MILL)
NT41 (RESTART POSITION)
N600 MT=4101
N610 M321
N620 MT=2801
N630 SB=886 BT=0 G52 TL=4141
N640 M110
N650 G20 HP=4
N660 G00 C0
N670 M147
N680 G138
N690 G174 SX=0. SZ=0.
N700 M13
N710 G00 G17 X6.2059 Y-5.5848 Z2. M08
N880 G00 Z-.65
N890 G01 Z-.8015
N900 G01 X8.9186 Y4.115 F14.18
N910 G03 X8.9186 Y-4.115 L6.0678
N920 G01 X6.2059 Y-5.5848
N930 G01 Z-.7015 F10.
N940 G00 Z.5
N950 G00 Y5.5848
N960 G00 Z-.7015
N970 G01 Z-.9015
N980 G01 X8.9186 Y4.115 F14.18
N990 G03 X8.9186 Y-4.115 L6.0678
N1000 G01 X6.2059 Y-5.5848
N1010 G01 Z-.8015 F10.
N1020 G00 Z2.
N1021 M148
N1022 G00 C180
N1023 M147
N870 G00 X6.2059
N880 G00 Z-.65
N890 G01 Z-.8015
N900 G01 X8.9186 Y4.115 F14.18
N910 G03 X8.9186 Y-4.115 L6.0678
N920 G01 X6.2059 Y-5.5848
N930 G01 Z-.7015 F10.
N940 G00 Z.5
N950 G00 Y5.5848
N960 G00 Z-.7015
N970 G01 Z-.9015
N980 G01 X8.9186 Y4.115 F14.18
N990 G03 X8.9186 Y-4.115 L6.0678
N1000 G01 X6.2059 Y-5.5848
N1010 G01 Z-.8015 F10.
N1020 G00 Z2.
N1030 G136
N1040 M09
N1050 M12
N1060 G20 HP=4
N1070 T100
N1080 M109
N1090 M01

[OkumaWiz]

Your G138 command as well as the G137 command will switch from using diameter X1=.5" from center line to X-Y coordinates which X1Y1=X 1" from centerline and Y 1" from centerline.

They do it that way so it programs like a mill when your lathe is milling. (and most prints are drawn that way)

I don't believe there is a way to switch it by parameter, but math can be used in the program (X6.2059/2) and many post processors can be switched between radius and diameter programming.

I can't resist the obvious question though, why don't you just use the correct numbers?


:-) Sorry I couldn't resist!

Best regards,

PS> Or am I not understanding the question?