Runner4404spd

01-27-2009, 09:06 AM

i made most of the fixture this morning and everything worked just fine. i was able to rough at various levels and came back to do a finish pass and the part came out great but a little small on the diameter. so i decided to create a finishing cycle with my cam program (onecnc btw) and here is the code it spit out. as far as i can tell the code is fine. for some reason it will do the first rough at .250 deep, which is correct. then it decides to plow into the material at the bottom of the hole to .800 deep. well this just ruined the first hole in the fixture. when i back the tool up and out and retouch it off, the tool is .300 lower than expected. ok, no problem maybe the touch off was off, then i went and ran the first hole again. it again wanted to plow to .800 deep. pulled it out and retouched off the tool again...again .300 low. rehomed the machine and retouched off the tool. now its .600 high and retouched off to the exact first number i ahd before to within .0002.

any idea whats going on here? i find it strange that it ran everything else just fine and the first set of programs i ran on it. now one thing i didn't mention yet is that the initial roughing steps were .1 this last time the steps were .250 deep. also to if it was a feed back or noise issue then i would assume it would show up everywhere no just on the second move.

N90 G49

N100 G17 G40

N110 G49

N120 G17 G40

N130 G20

N140 G80

N150 G90

N160 G98

N170 (0.37INCH END MILL)

N180 T1 M06

N190 S950

N200 M08

N210 G43 H1 D1

N220 G00 X0.67 Y0.4875 Z0.5

N230 Z0.1

N240 G01 Z-0.25 F2.0 S950

N250 X0.867 Y0.4528 F4.0

N260 G03 X1.0987 Y0.615 R0.2

N270 X1.105 Y0.6875 R0.4175

N280 X0.27 Y0.6875 R0.4175

N290 X1.0987 Y0.615 R0.4175

N300 X1.1017 Y0.6497 R0.2

N310 X0.9364 Y0.8467 R0.2

N320 G01 X0.7395 Y0.8814

N330 Z0.1

N340 G00 Z0.5

N350 X0.67 Y0.4875

N360 Z-0.15

N370 G01 Z-0.5 F2.0

N380 X0.867 Y0.4528 F4.0

N390 G03 X1.0987 Y0.615 R0.2

N400 X1.105 Y0.6875 R0.4175

N410 X0.27 Y0.6875 R0.4175

N420 X1.0987 Y0.615 R0.4175

N430 X1.1017 Y0.6497 R0.2

N440 X0.9364 Y0.8467 R0.2

N450 G01 X0.7395 Y0.8814

N460 Z-0.15

N470 G00 Z0.5

N480 X0.67 Y0.4875

N490 Z-0.175

N500 G01 Z-0.525 F2.0

N510 X0.867 Y0.4528 F4.0

N520 G03 X1.0987 Y0.615 R0.2

N530 X1.105 Y0.6875 R0.4175

N540 X0.27 Y0.6875 R0.4175

N550 X1.0987 Y0.615 R0.4175

N560 X1.1017 Y0.6497 R0.2

N570 X0.9364 Y0.8467 R0.2

N580 G01 X0.7395 Y0.8814

N590 Z-0.175

N600 G00 Z0.5

N610 X0.6749 Y0.4866

N620 Z-0.175

N630 G01 Z-0.525 F2.0

N640 X0.8719 Y0.4519 F4.0

N650 G03 X1.1036 Y0.6141 R0.2

N660 X1.11 Y0.6875 R0.4225

N670 X0.265 Y0.6875 R0.4225

N680 X1.1036 Y0.6141 R0.4225

N690 X1.11 Y0.6875 R0.4225

N700 X0.4415 Y1.031 R0.4225

N710 X0.3579 Y0.8684 R0.2

N720 X0.3953 Y0.7519 R0.2

N730 G01 X0.5118 Y0.5893

N740 Z-0.175

N750 G00 Z0.5

N760 (END TOOL)

N770 M5

N780 M09

N790 M25

N800 M30

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any idea whats going on here? i find it strange that it ran everything else just fine and the first set of programs i ran on it. now one thing i didn't mention yet is that the initial roughing steps were .1 this last time the steps were .250 deep. also to if it was a feed back or noise issue then i would assume it would show up everywhere no just on the second move.

N90 G49

N100 G17 G40

N110 G49

N120 G17 G40

N130 G20

N140 G80

N150 G90

N160 G98

N170 (0.37INCH END MILL)

N180 T1 M06

N190 S950

N200 M08

N210 G43 H1 D1

N220 G00 X0.67 Y0.4875 Z0.5

N230 Z0.1

N240 G01 Z-0.25 F2.0 S950

N250 X0.867 Y0.4528 F4.0

N260 G03 X1.0987 Y0.615 R0.2

N270 X1.105 Y0.6875 R0.4175

N280 X0.27 Y0.6875 R0.4175

N290 X1.0987 Y0.615 R0.4175

N300 X1.1017 Y0.6497 R0.2

N310 X0.9364 Y0.8467 R0.2

N320 G01 X0.7395 Y0.8814

N330 Z0.1

N340 G00 Z0.5

N350 X0.67 Y0.4875

N360 Z-0.15

N370 G01 Z-0.5 F2.0

N380 X0.867 Y0.4528 F4.0

N390 G03 X1.0987 Y0.615 R0.2

N400 X1.105 Y0.6875 R0.4175

N410 X0.27 Y0.6875 R0.4175

N420 X1.0987 Y0.615 R0.4175

N430 X1.1017 Y0.6497 R0.2

N440 X0.9364 Y0.8467 R0.2

N450 G01 X0.7395 Y0.8814

N460 Z-0.15

N470 G00 Z0.5

N480 X0.67 Y0.4875

N490 Z-0.175

N500 G01 Z-0.525 F2.0

N510 X0.867 Y0.4528 F4.0

N520 G03 X1.0987 Y0.615 R0.2

N530 X1.105 Y0.6875 R0.4175

N540 X0.27 Y0.6875 R0.4175

N550 X1.0987 Y0.615 R0.4175

N560 X1.1017 Y0.6497 R0.2

N570 X0.9364 Y0.8467 R0.2

N580 G01 X0.7395 Y0.8814

N590 Z-0.175

N600 G00 Z0.5

N610 X0.6749 Y0.4866

N620 Z-0.175

N630 G01 Z-0.525 F2.0

N640 X0.8719 Y0.4519 F4.0

N650 G03 X1.1036 Y0.6141 R0.2

N660 X1.11 Y0.6875 R0.4225

N670 X0.265 Y0.6875 R0.4225

N680 X1.1036 Y0.6141 R0.4225

N690 X1.11 Y0.6875 R0.4225

N700 X0.4415 Y1.031 R0.4225

N710 X0.3579 Y0.8684 R0.2

N720 X0.3953 Y0.7519 R0.2

N730 G01 X0.5118 Y0.5893

N740 Z-0.175

N750 G00 Z0.5

N760 (END TOOL)

N770 M5

N780 M09

N790 M25

N800 M30

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