Thx for the replies everyone...I had to download a post-processor. I wasn't able to see anything like G107 or G112 until now. I am still having trouble getting it to work with my drawing and machine set as a VTL so for now I just drew it up as a regular lathe. All the same right?? Other than a few simple edits at the control, the code does look right. I will dry run it in the morning and go from there. Cycle Start and run, right? Cheers and thanks again! bmolinar

Thanks for the replies. It is a HNK VTC-16. Not as big as in the link provided, but its still a beast. The control is Fanuc 31i model A. Threadmilling will be on the face of the part. I know it is capable of this type of threadmilling because the installers gave us a few "Demo" programs and one of them was drilling and threading a hole. This is the sample program that was given to us. % O1300(VTC CAXIS TEST) (HNK VTC CAXIS POST) (ROTORY MODE DRILLING) (POLAR MODE MILLING) (TOOLING LIST) (T1-5 CENTER DRILL) (T2-2 1-8IN SPADE DRILL) (T3-1.0 HELI MILL) (T5-3.0 TUNGALOY HAWG MILL) (ROTORY MODE) N10(5 CENTER DRILL) G40 M6T01 M1 (ROTORY MODE) N12(2 1-8IN SPADE DRILL ) G40 M6T02 M1 M35 S134M33 T0202 G00G54X28.6356C155.2249Z3.0M8 G98 G83X28.6356Z-3.7231R0.1F1.34M10 X28.6356C204.7751 X28.6356C335.2249 X28.6356C24.7751 G80 G00X0.0C0.0 G83X0.0Z-5.1731R0.1F4.0S180 G80 M11 M35 M9 G28U0.0W0.0M5 M1 (POLAR MODE) G20 N14(1.0 HELI MILL) G40 /M6T03 M1 M35 S2101M33 /T0303 G00G54X13.25C0.0Z3.0M8 G12.1 G01X0.0C-7.625F50. X0.0C-6.625Z0.0F29.4118 X17.0C-6.625Z-0.013 G03X21.25C-4.5I0.0J2.125 G01X21.25C4.5Z-0.0319 G03X17.0C6.625I-2.125J0.0 G01X-17.0C6.625Z-0.063 G03X-21.25C4.5I0.0J-2.125 G01X-21.25C-4.5Z-0.0819 G03X-17.0C-6.625I2.125J0.0 G01X0.0C-6.625Z-0.1 X17.0C-6.625Z-0.113 G03X21.25C-4.5I0.0J2.125 G01X21.25C4.5Z-0.1319 G03X17.0C6.625I-2.125J0.0 G01X-17.0C6.625Z-0.163 G03X-21.25C4.5I0.0J-2.125 G01X-21.25C-4.5Z-0.1819 G03X-17.0C-6.625I2.125J0.0 G01X0.0C-6.625Z-0.2 X17.0C-6.625Z-0.213 G03X21.25C-4.5I0.0J2.125 G01X21.25C4.5Z-0.2319 G03X17.0C6.625I-2.125J0.0 G01X-17.0C6.625Z-0.263 G03X-21.25C4.5I0.0J-2.125 G01X-21.25C-4.5Z-0.2819 G03X-17.0C-6.625I2.125J0.0 G01X0.0C-6.625Z-0.3 X17.0C-6.625Z-0.313 G03X21.25C-4.5I0.0J2.125 G01X21.25C4.5Z-0.3319 G03X17.0C6.625I-2.125J0.0 G01X-17.0C6.625Z-0.363 G03X-21.25C4.5I0.0J-2.125 G01X-21.25C-4.5Z-0.3819 G03X-17.0C-6.625I2.125J0.0 G01X0.0C-6.625Z-0.4 X17.0C-6.625Z-0.413 G03X21.25C-4.5I0.0J2.125 G01X21.25C4.5Z-0.4319 G03X17.0C6.625I-2.125J0.0 G01X-17.0C6.625Z-0.463 G03X-21.25C4.5Z-0.4681I0.0J-2.125 G01X-21.25C-4.5Z-0.4819 G03X-17.0C-6.625I2.125J0.0 G01X0.0C-6.625Z-0.5 X17.0C-6.625 G03X21.25C-4.5I0.0J2.125 G01X21.25C4.5 G03X17.0C6.625I-2.125J0.0 G01X-17.0C6.625 G03X-21.25C4.5I0.0J-2.125 G01X-21.25C-4.5 G03X-17.0C-6.625I2.125J0.0 G01X0.0C-6.625 G01X0.0C-7.625 G13.1 G00X13.25Z3.0 M35 M9 G28U0.0W0.0M5 M0 (POLAR MODE) G20 N18(3.0 TUNGALOY HAWG MILL) G40 /M6T05 M1 M35 S1146M33 /T0505 G00G54X21.6876C0.0Z3.0M8 M11 X21.6876Z0.1 G12.1 G01X0.0C10.8438Z0.0F45.8366 X30.6876C9.8438Z-0.0147 G02X33.6876C8.3438I0.0J-1.5 G01X33.6876C-8.3438Z-0.033 G02X30.6876C-9.8438I-1.5J0.0 G01X-30.6876C-9.8438Z-0.0647 G02X-33.6876C-8.3438I0.0J1.5 G01X-33.6876C8.3438Z-0.083 G02X-30.6876C9.8438I1.5J0.0 G01X0.0C9.8438Z-0.1 X30.6876C9.8438Z-0.1147 G02X33.6876C8.3438I0.0J-1.5 G01X33.6876C-8.3438Z-0.133 G02X30.6876C-9.8438I-1.5J0.0 G01X-30.6876C-9.8438Z-0.1647 G02X-33.6876C-8.3438I0.0J1.5 G01X-33.6876C8.3438Z-0.183 G02X-30.6876C9.8438I1.5J0.0 G01X0.0C9.8438Z-0.2 X30.6876C9.8438Z-0.2147 G02X33.6876C8.3438I0.0J-1.5 G01X33.6876C-8.3438Z-0.233 G02X30.6876C-9.8438I-1.5J0.0 G01X-30.6876C-9.8438Z-0.2647 G02X-33.6876C-8.3438I0.0J1.5 G01X-33.6876C8.3438Z-0.283 G02X-30.6876C9.8438I1.5J0.0 G01X0.0C9.8438Z-0.3 X30.6876C9.8438Z-0.3147 G02X33.6876C8.3438I0.0J-1.5 G01X33.6876C-8.3438Z-0.333 G02X30.6876C-9.8438I-1.5J0.0 G01X-30.6876C-9.8438Z-0.3647 G02X-33.6876C-8.3438I0.0J1.5 G01X-33.6876C8.3438Z-0.383 G02X-30.6876C9.8438I1.5J0.0 G01X0.0C9.8438Z-0.4 X30.6876C9.8438Z-0.4147 G02X33.6876C8.3438I0.0J-1.5 G01X33.6876C-8.3438Z-0.433 G02X30.6876C-9.8438I-1.5J0.0 G01X-30.6876C-9.8438Z-0.4647 G02X-33.6876C-8.3438I0.0J1.5 G01X-33.6876C8.3438Z-0.483 G02X-30.6876C9.8438I1.5J0.0 G01X0.0C9.8438Z-0.5 X30.6876C9.8438Z-0.5147 G02X33.6876C8.3438I0.0J-1.5 G01X33.6876C-8.3438Z-0.533 G02X30.6876C-9.8438I-1.5J0.0 G01X-30.6876C-9.8438Z-0.5647 G02X-33.6876C-8.3438I0.0J1.5 G01X-33.6876C8.3438Z-0.583 G02X-30.6876C9.8438I1.5J0.0 G01X0.0C9.8438Z-0.6 X30.6876C9.8438Z-0.6147 G02X33.6876C8.3438I0.0J-1.5 G01X33.6876C-8.3438Z-0.633 G02X30.6876C-9.8438I-1.5J0.0 G01X-30.6876C-9.8438Z-0.6647 G02X-33.6876C-8.3438I0.0J1.5 G01X-33.6876C8.3438Z-0.683 G02X-30.6876C9.8438I1.5J0.0 G01X0.0C9.8438Z-0.7 X30.6876C9.8438Z-0.7147 G02X33.6876C8.3438I0.0J-1.5 G01X33.6876C-8.3438Z-0.733 G02X30.6876C-9.8438I-1.5J0.0 G01X-30.6876C-9.8438Z-0.7647 G02X-33.6876C-8.3438I0.0J1.5 G01X-33.6876C8.3438Z-0.783 G02X-30.6876C9.8438I1.5J0.0 G01X0.0C9.8438Z-0.8 X30.6876C9.8438Z-0.8147 G02X33.6876C8.3438I0.0J-1.5 G01X33.6876C-8.3438Z-0.833 G02X30.6876C-9.8438I-1.5J0.0 G01X-30.6876C-9.8438Z-0.8647 G02X-33.6876C-8.3438I0.0J1.5 G01X-33.6876C8.3438Z-0.883 G02X-30.6876C9.8438I1.5J0.0 G01X0.0C9.8438Z-0.9 X30.6876C9.8438Z-0.9147 G02X33.6876C8.3438I0.0J-1.5 G01X33.6876C-8.3438Z-0.933 G02X30.6876C-9.8438I-1.5J0.0 G01X-30.6876C-9.8438Z-0.9647 G02X-33.6876C-8.3438I0.0J1.5 G01X-33.6876C8.3438Z-0.983 G02X-30.6876C9.8438I1.5J0.0 G01X0.0C9.8438Z-1.0 X30.6876C9.8438 G02X33.6876C8.3438I0.0J-1.5 G01X33.6876C-8.3438 G02X30.6876C-9.8438I-1.5J0.0 G01X-30.6876C-9.8438 G02X-33.6876C-8.3438I0.0J1.5 G01X-33.6876C8.3438 G02X-30.6876C9.8438I1.5J0.0 G01X0.0C9.8438 G13.1 G00X21.6876Z3.0 M35 M9 G28U0.0W0.0M5 M0 (POLAR MODE) M30 %

Hello all, Im new to the site. Ive been trolling the forums for answers for a few months now and for the most part have been able to find the answers to my questions. I am stuck on trying to threadmill on our HNK VTL. For the most part, I am a lathe guy and have run a few mills before but I am a total newbee when it comes to programming them. I dont know where to start...Ive done a little research and spoke with the guys that installed our VTL and they tell me that I have to use G12.1 polar coordinates. Whatever that is.. :-) I have figured out how to threadmill for our Toyoda HMC's and that has gotten pretty easy. I just dont have a clue as to why the code for the VTL's is not working.. Anyhow Ive got the bolt pattern drawn out, I just dont know where to go from here. We use Mastercam X6, and thats about all I can do. Any help/advice would be superb! Cheers, bmolinar