I am trying to cut a 1" hole .500 deep in a 2" x 2" x 1" alum block using a 3/16 flat endmill. I drew the part in rhino and imported it into feature cam to generate the g code. I load the g-code in mach3 and when i run the code the z goes up about 2" and moves to the center of the hole and starts going down and stops about 1" from the block and starts to cut out the hole. I have all the offsets set to 0 and im starting off at 0. I am using a post processor i downloaded off the net and im sure i need to work on it a bit. I am running a Taig with geco drives 201's and featurecam 12. If anyone has a post for featurecam it would be most appreciated.

Here is the first bit of g-code.

% (=============================================)

(Project: Untitled2 )

(Compiled: 7-26-2007)

(----------------------------------------------)

(FeatureMILL POST for MACH3 MILL rev1.0 - 03/05/2006)

(MACH3-MILL - rev1.0.CNC)

(NovaLab / CK)

(=============================================)

(====== Tool No 1 = 3/16 2 flu endmill)

(====== Tool No 1 diam. = 0.1875)

(..... Segment = SRF_MILL1)

(..... Operation = ROUGH1 Z LEVEL)

(=============================================)

N75 M91000 (Lead-in Macro for Smithy Setup)

N80 G40 G49 G17 G80 G61 G70 G90 (Inch mode & Exact Stop)

N85 G00

N90 T1 M6

N95 F4.69

N100 G1 X1.0535 Y-1.0336 S2500 M03

N105 M08

N110 G43 H1 Z1.999

N115 Z1.099

N120 G01 X0.9208 Y-0.9012 Z1.0842 F4.69

N125 X1.0535 Y-1.0336 Z1.0694

N130 X0.9208 Y-0.9012 Z1.0546

N135 X1.0535 Y-1.0336 Z1.0398

N140 X0.9208 Y-0.9012 Z1.0249

N145 X1.0535 Y-1.0336 Z1.0101

N150 X0.9208 Y-0.9012 Z0.9953

N155 X1.0535 Y-1.0336 Z0.9805

N160 X0.9208 Y-0.9012 Z0.9657

N165 X1.0535 Y-1.0336 Z0.9509

N170 X0.9208 Y-0.9012 Z0.9361

N175 X1.0535 Y-1.0336 Z0.9213

N180 X0.9208 Y-0.9012 Z0.9065

N185 X1.0535 Y-1.0336 Z0.8917

N190 X0.9208 Y-0.9012 Z0.8768

N195 X1.0535 Y-1.0336 Z0.862

N200 X0.9208 Y-0.9012 Z0.8472

N205 X0.9379 Y-1.0046 F9.37

N210 Y-0.9913

N215 X0.9399 Y-0.9805

N220 X0.9449 Y-0.9686

N225 X0.9468 Y-0.9658

N230 X0.9516 Y-0.9585

N235 X0.9547 Y-0.9554

N240 X0.9579 Y-0.9523

N245 X0.9611 Y-0.9492

N250 X0.9699 Y-0.9434

N255 X0.9778 Y-0.94

N260 X0.9826 Y-0.9381

N265 X0.9924 Y-0.9361

N270 X1.0014

N275 X1.0074

N280 X1.0173 Y-0.938

N285 X1.0235 Y-0.9406

N290 X1.0303 Y-0.9434

N295 X1.0312 Y-0.944

N300 X1.0391 Y-0.9493

N305 X1.0417 Y-0.9518

N310 X1.0438 Y-0.9538

N315 X1.0483 Y-0.9584

N320 X1.0491 Y-0.9597

N325 X1.0547 Y-0.968

N330 X1.0555 Y-0.9698

N335 X1.06 Y-0.9805

N340 X1.0622 Y-0.9918

N345 Y-1.005

N350 X1.0601 Y-1.0159

N355 X1.0573 Y-1.0224

N360 X1.0554 Y-1.027

N365 X1.0548 Y-1.0284

N370 X1.0534 Y-1.0305

N375 X1.0496 Y-1.0362

N380 X1.0484 Y-1.0381

N385 X1.0444 Y-1.0421

N390 X1.0418 Y-1.0446

N395 X1.0392 Y-1.0472

N400 X1.0332 Y-1.0512

N405 X1.0294 Y-1.0536

N410 X1.0241 Y-1.0558

N415 X1.0225 Y-1.0565

N420 X1.0179 Y-1.0583

N425 X1.0092 Y-1.06

N430 X0.993 Y-1.0604

N435 X0.9822 Y-1.0583

N440 X0.9705 Y-1.0535

N445 X0.9686 Y-1.0523

thanks!