Bosses are perfect, bores are undersized
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  1. #1
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    Default Bosses are perfect, bores are undersized

    I'm trying to troubleshoot an issue with my new TM-1P with NGC. I'm programming with Inventor 2019 HSM. Tool offsets are set with the probe.

    Using the same tool and material I can make a circular boss feature and the diameter comes out spot on, within 0.0005". However, when I bore out a hole the diameter is coming out too small by around 0.005". I've seen this behavior repeatedly with multiple end mills in both steel and Ti. Some of the holes were made with carbide end mills 0.5" in diameter, so it doesn't seen like tool deflection is the answer, and for shallow hole in steel so I don't think the part is deflecting either.

    Any ideas? Could there be some kind of cutter compensation turned on I don't know about that would act differently for bores and bosses?

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    What is your feed rate? Are you accounting for the feed at the tip of the tool when programming centerline feed in an internal radius move?

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    Feed rate is fairly slow - 15 in/min in Ti at 2200 RPM with a 4 flute 0.5" carbide end mill - the TM-1P isn't all that powerful.

    I was relying on HSM's g-code generation as I figured they'd be better at it than me. I did try changing the compensation from "in computer" to "in control" but I got the same result. I guess I'll dig into the g-code tonight and try to see if something is wrong there.

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    What is the bore size?

    Your endmill will cut much more effectively on the boss than in the bore. Your 15 IPM @ 2,200 with 4 flutes comes out to .0017" chipload, which if the bore is like 3/4", is (IMO) way too fast if the bore size is less than 200% of the endmill size. The endmill can have a very high engagement % in a bore, which makes it deflect, especially in Ti.

    Have you tried helixing down into the bore?

    Regards.

    Mike

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    Are you repeating your finish pass (spark-out, so to speak)? You should if you want to absolutely nail sizes on these kinds of features.

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    Quote Originally Posted by bmazin View Post
    Feed rate is fairly slow - 15 in/min in Ti at 2200 RPM with a 4 flute 0.5" carbide end mill - the TM-1P isn't all that powerful.

    I was relying on HSM's g-code generation as I figured they'd be better at it than me. I did try changing the compensation from "in computer" to "in control" but I got the same result. I guess I'll dig into the g-code tonight and try to see if something is wrong there.
    a word on advise expecially on a hass mill the i.d bores will be about 50% less in feed rates to make a good one when running boss's. I have no clue why. it even happens on alum...and you need to also make a dry pass. My hass has dont this from day 1 and I cant figure out why. its a vf2ss

    besides you should be using the g13 cycle for bores, then you have 100% control if you have it

    G13 I0.25 k0.375 Q0.015 D1 F5.0
    I= bore start Rad. K= bore finish Rad. Q= width of cut D= tool dia offset

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    Tried another part with a finishing pass and with feed optimization off (before it was set for inner corners only). Still small by .003"!

    One thing - this hole is elliptical, so I'm measuring off the minor axis, but I've seen the same thing with circular bores.

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    Quote Originally Posted by bmazin View Post
    Tried another part with a finishing pass and with feed optimization off (before it was set for inner corners only). Still small by .003"!

    One thing - this hole is elliptical, so I'm measuring off the minor axis, but I've seen the same thing with circular bores.
    Dude
    post a picture of that section (boss and the bore or elliptical bore as you call it now. also post your program for it...

    and just for hell of it post what you dia offsets are on your tool cutting it.
    cause something isnt right and I am sure its your programming not coming out correctly and thinking the machine probe is going to make up for that. which it will if and ONLY if you use cutter comp.


    if your measuring the tool on the probe than I assume your using cutter comp, if your not using cutter comp then there is no point in measuring your tool as it would make no difference.

    I believe you are writing the program for the dia of the endmill, which is fine. I do that also in cad for mosts stuff because you dont always need cutter comp.

    and one more thing, how are you measuring it? please dont say calipers.

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    feed is the centerline of the tool ... your feeding WAY to fast ... a 1" bore using a 1/2" endmill well travel 1.570" but cut 3.1416 worth of surface... meaning if you program 10 IPM feed your actual feed is 31.16" not the 15.70" feed your programmed.

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    Quote Originally Posted by D.D.Machine View Post
    feed is the centerline of the tool ... your feeding WAY to fast ... a 1" bore using a 1/2" endmill well travel 1.570" but cut 3.1416 worth of surface... meaning if you program 10 IPM feed your actual feed is 31.16" not the 15.70" feed your programmed.
    I like how you said/explained that, makes alot of sense.

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    Quote Originally Posted by D.D.Machine View Post
    feed is the centerline of the tool ... your feeding WAY to fast ... a 1" bore using a 1/2" endmill well travel 1.570" but cut 3.1416 worth of surface... meaning if you program 10 IPM feed your actual feed is 31.16" not the 15.70" feed your programmed.
    Wish we could like a post twice. That just clicked in my head. Thank you.

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    That elliptical example is probably too complex to diagnose. Here is a simpler feature (see toolpath in jpg) that showed the same problem. BTW, I am not a trained professional machinist - basically an advanced hobbyist, so I apologize ahead of time for missing dumb stuff.

    In this part I wanted to bore a hole 0.501" to fit a 0.500" OD ball bearing in 1018 steel.

    pocket.jpg

    I used a 1/8" 4 flute carbide endmill at 10000 RPM (327 ft/min). Measurement of endmill diameter came out right at .125". Cutting feedrate was 24 in/min, but lead in and plunge feedrate was 6 in/min. When I simulated a simple bore operation it left a nub in the middle, so I used the HSM pocket feature to clear out the whole pocket. I'm not in a huge rush so I did fairly conservative multiple depths. I did measure with a caliper (sorry, I don't have a gauge pin set!) and it came out around 0.493", and I can't get the .500" ball bearing in there. A little funny this is my issue when all the complex 4th axis stuff came out great... Anyway, the g-code for the pocket is below:

    (Pocket1)
    Code:
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    N9435 X0.1292 Y0.1363
    N9440 X0.1264 Y0.1388
    N9445 X0.1163 Y0.1471
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    N9465 G3 X0.0747 I0.0153 J0. F24.
    N9470 X-0.0747 I-0.0747 J0.
    N9475 X0.0747 I0.0747 J0.
    N9480 G2 X0.1119 Y0.0689 I0.0823 J0.
    N9485 G3 X0.1163 Y0.1471 I-0.0266 J0.0407
    N9490 G1 X0.1123 Y0.1504
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    N9500 X0.0907 Y0.1645
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    N9570 X-0.0692 Y0.1747
    N9575 X-0.0888 Y0.1655
    N9580 X-0.0925 Y0.1634
    N9585 X-0.11 Y0.1522
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    N9605 X-0.1434 Y0.1211
    N9610 X-0.1457 Y0.1185
    N9615 X-0.1585 Y0.1008
    N9620 X-0.1619 Y0.0947
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    N9630 X-0.1709 Y0.0777
    N9635 X-0.1786 Y0.0582
    N9640 X-0.1842 Y0.0365
    N9645 X-0.1849 Y0.0327
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    N9655 X-0.1875 Y0.0109
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    N9945 X0.1573 Y0.1024
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    N9965 X0.1264 Y0.1388
    N9970 X0.1163 Y0.1471
    N9975 X0.1146 Y0.1483 Z-0.1798 F6.1
    N9980 X0.1127 Y0.1492 Z-0.1792
    N9985 X0.1108 Y0.1497 Z-0.1783
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    N10010 X0.1048 Y0.1494 Z-0.1697
    N10015 X0.1046 Z-0.1675
    N10020 G0 Z0.6
    N10025 M5
    N10030 G53 G0 Z0.

  16. #13
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    Quote Originally Posted by bmazin View Post
    I was relying on HSM's g-code generation as I figured they'd be better at it than me. I did try changing the compensation from "in computer" to "in control" but I got the same result. I guess I'll dig into the g-code tonight and try to see if something is wrong there.
    "in computer" means that the code itself is compensated, without a G41 or G42 command to walk up to your dimension

    "in control" means you need to comp both the diameter and wear in the control

    "wear" means you only need to comp the wear

    looking at your code above doesn't seem to have a G41 or a G42 command. That's probably why your parts are undersized

  17. #14
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    Quote Originally Posted by bmazin View Post
    That elliptical example is probably too complex to diagnose. Here is a simpler feature (see toolpath in jpg) that showed the same problem. BTW, I am not a trained professional machinist - basically an advanced hobbyist, so I apologize ahead of time for missing dumb stuff.

    In this part I wanted to bore a hole 0.501" to fit a 0.500" OD ball bearing in 1018 steel.

    pocket.jpg

    I used a 1/8" 4 flute carbide endmill at 10000 RPM (327 ft/min). Measurement of endmill diameter came out right at .125". Cutting feedrate was 24 in/min, but lead in and plunge feedrate was 6 in/min. When I simulated a simple bore operation it left a nub in the middle, so I used the HSM pocket feature to clear out the whole pocket. I'm not in a huge rush so I did fairly conservative multiple depths. I did measure with a caliper (sorry, I don't have a gauge pin set!) and it came out around 0.493", and I can't get the .500" ball bearing in there. A little funny this is my issue when all the complex 4th axis stuff came out great... Anyway, the g-code for the pocket is below:

    (Pocket1)
    Code:
    N5355 M9
    N5360 M1
    N5365 T2 M6
    N5370 S10000 M3
    N5375 G54
    N5380 M8
    N5385 G0 X-0.1798 Y-0.0425
    N5390 G43 Z0.6 H2
    N5395 T7
    N5400 G0 Z0.0594
    N5405 G1 Z-0.0075 F6.1
    N5410 X-0.1799 Y-0.0422 Z-0.0103
    N5415 X-0.1801 Y-0.0413 Z-0.0129
    N5420 X-0.1804 Y-0.0398 Z-0.0153
    N5425 X-0.1808 Y-0.0379 Z-0.0173
    N5430 X-0.1813 Y-0.0356 Z-0.0188
    N5435 X-0.1818 Y-0.033 Z-0.0197
    N5440 X-0.1824 Y-0.0302 Z-0.02
    N5445 G2 X-0.1643 Y0.0903 I0.1724 J0.0357
    N5450 G1 X-0.1584 Y0.1009 F24.
    N5455 X-0.1447 Y0.1199
    N5460 X-0.1286 Y0.1369
    N5465 X-0.1104 Y0.152
    N5470 X-0.0902 Y0.1648
    N5475 X-0.0692 Y0.1747
    N5480 X-0.047 Y0.1819
    N5485 X-0.0235 Y0.1864
    N5490 X0. Y0.1879
    N5495 X0.0235 Y0.1864
    N5500 X0.047 Y0.1819
    N5505 X0.0689 Y0.1748
    N5510 X0.0692 Y0.1746
    N5515 X0.0902 Y0.1648
    N5520 X0.11 Y0.1523
    N5525 X0.1106 Y0.1519
    N5530 X0.1286 Y0.1369
    N5535 X0.1447 Y0.1199
    N5540 X0.1585 Y0.1009
    N5545 X0.1698 Y0.0803
    N5550 X0.1787 Y0.0581
    N5555 X0.1845 Y0.0352
    N5560 X0.1875 Y0.012
    N5565 Y0.0117
    N5570 Y-0.0118
    N5575 X0.1845 Y-0.0352
    N5580 X0.1786 Y-0.0582
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    N5715 X-0.1845 Y0.0352
    N5720 X-0.1786 Y0.0582
    N5725 X-0.1701 Y0.0797
    N5730 X-0.1643 Y0.0903
    N5735 G2 X-0.0273 Y0.1331 I0.0908 J-0.0499
    N5740 X0.0695 Y0.0271 I-0.089 J-0.1785
    N5745 X-0.0696 Y-0.0272 I-0.0695 J-0.0271
    N5750 X0.0695 Y0.0271 I0.0695 J0.0271
    N5755 X0.048 Y0.0024 I-0.0173 J-0.0067
    N5760 G3 X0.0178 Y-0.0105 I-0.0064 J-0.0269
    N5765 G2 X-0.0178 Y0.0105 I-0.0178 J0.0105
    N5770 X0.0178 Y-0.0105 I0.0178 J-0.0105
    N5775 X0.0104 Y0.0598 Z-0.0362 I-0.0511 J0.0302 F6.1
    N5780 G1 X0.0284 Y0.0402 Z-0.0376
    N5785 G2 X0.0441 Y0. Z-0.04 I-0.0437 J-0.0402
    N5790 G3 X0.0747 I0.0153 J0. F24.
    N5795 X-0.0747 I-0.0747 J0.
    N5800 X0.0747 I0.0747 J0.
    N5805 G2 X0.1119 Y0.0689 I0.0823 J0.
    N5810 G3 X0.1163 Y0.1471 I-0.0266 J0.0407
    N5815 G1 X0.1123 Y0.1504
    N5820 X0.1088 Y0.153
    N5825 X0.0907 Y0.1645
    N5830 X0.0902 Y0.1648
    N5835 X0.0709 Y0.1739
    N5840 X0.0673 Y0.1753
    N5845 X0.0466 Y0.182
    N5850 X0.0463 Y0.1821
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    N5885 X-0.0448 Y0.1823
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    N5900 X-0.0888 Y0.1655
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    N5935 X-0.1457 Y0.1185
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    N6050 X-0.1275 Y-0.1378
    N6055 X-0.1108 Y-0.1517
    N6060 X-0.1074 Y-0.1539
    N6065 X-0.0915 Y-0.1639
    N6070 X-0.0888 Y-0.1654
    N6075 X-0.0692 Y-0.1746
    N6080 X-0.0689 Y-0.1748
    N6085 X-0.0485 Y-0.1814
    N6090 X-0.0439 Y-0.1825
    N6095 X-0.0233 Y-0.1864
    N6100 X-0.0231
    N6105 X-0.0006 Y-0.1878
    N6110 X0.0029 Y-0.1877
    N6115 X0.0224 Y-0.1864
    N6120 X0.0249 Y-0.1861
    N6125 X0.0464 Y-0.182
    N6130 X0.0478 Y-0.1816
    N6135 X0.0673 Y-0.1753
    N6140 X0.0709 Y-0.1739
    N6145 X0.0903 Y-0.1647
    N6150 X0.0939 Y-0.1625
    N6155 X0.1094 Y-0.1526
    N6160 X0.1122 Y-0.1505
    N6165 X0.1279 Y-0.1375
    N6170 X0.1291 Y-0.1364
    N6175 X0.144 Y-0.1205
    N6180 X0.1464 Y-0.1175
    N6185 X0.1577 Y-0.1018
    N6190 X0.1596 Y-0.0989
    N6195 X0.1701 Y-0.0797
    N6200 X0.1781 Y-0.0594
    N6205 X0.1794 Y-0.0552
    N6210 X0.1845 Y-0.0353
    N6215 X0.1846 Y-0.035
    N6220 X0.1874 Y-0.0129
    N6225 X0.1875 Y-0.0083
    N6230 Y0.0103
    N6235 X0.1874 Y0.0127
    N6240 X0.1846 Y0.0347
    N6245 X0.1838 Y0.0379
    N6250 X0.1792 Y0.0561
    N6255 X0.1779 Y0.0601
    N6260 X0.1698 Y0.0803
    N6265 X0.1591 Y0.0997
    N6270 X0.1573 Y0.1024
    N6275 X0.1454 Y0.1188
    N6280 X0.1442 Y0.1204
    N6285 X0.1292 Y0.1363
    N6290 X0.1264 Y0.1388
    N6295 X0.1163 Y0.1471
    N6300 G3 X0.0216 Y0.0845 Z-0.0527 I-0.0378 J-0.0457 F6.1
    N6305 G1 X0.0416 Y0.0169 Z-0.0586
    N6310 G2 X0.0441 Y0. Z-0.06 I-0.0569 J-0.0169
    N6315 G3 X0.0747 I0.0153 J0. F24.
    N6320 X-0.0747 I-0.0747 J0.
    N6325 X0.0747 I0.0747 J0.
    N6330 G2 X0.1119 Y0.0689 I0.0823 J0.
    N6335 G3 X0.1163 Y0.1471 I-0.0266 J0.0407
    N6340 G1 X0.1123 Y0.1504
    N6345 X0.1088 Y0.153
    N6350 X0.0907 Y0.1645
    N6355 X0.0902 Y0.1648
    N6360 X0.0709 Y0.1739
    N6365 X0.0673 Y0.1753
    N6370 X0.0466 Y0.182
    N6375 X0.0463 Y0.1821
    N6380 X0.0249 Y0.1861
    N6385 X0.0214 Y0.1865
    N6390 X0.0011 Y0.1878
    N6395 X-0.0014
    N6400 X-0.0229 Y0.1864
    N6405 X-0.0253 Y0.1861
    N6410 X-0.0448 Y0.1823
    N6415 X-0.0484 Y0.1814
    N6420 X-0.0692 Y0.1747
    N6425 X-0.0888 Y0.1655
    N6430 X-0.0925 Y0.1634
    N6435 X-0.11 Y0.1522
    N6440 X-0.1106 Y0.1518
    N6445 X-0.1275 Y0.1379
    N6450 X-0.1304 Y0.1351
    N6455 X-0.1434 Y0.1211
    N6460 X-0.1457 Y0.1185
    N6465 X-0.1585 Y0.1008
    N6470 X-0.1619 Y0.0947
    N6475 X-0.1691 Y0.0816
    N6480 X-0.1709 Y0.0777
    N6485 X-0.1786 Y0.0582
    N6490 X-0.1842 Y0.0365
    N6495 X-0.1849 Y0.0327
    N6500 X-0.1874 Y0.0123
    N6505 X-0.1875 Y0.0109
    N6510 Y-0.0107
    N6515 X-0.1872 Y-0.0142
    N6520 X-0.1847 Y-0.0337
    N6525 X-0.1843 Y-0.036
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    N6535 X-0.1786 Y-0.0581
    N6540 X-0.1705 Y-0.0786
    N6545 X-0.1688 Y-0.0821
    N6550 X-0.1586 Y-0.1007
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    N6655 X0.0478 Y-0.1816
    N6660 X0.0673 Y-0.1753
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    N6685 X0.1122 Y-0.1505
    N6690 X0.1279 Y-0.1375
    N6695 X0.1291 Y-0.1364
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    N6705 X0.1464 Y-0.1175
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    N9055 X-0.0925 Y0.1634
    N9060 X-0.11 Y0.1522
    N9065 X-0.1106 Y0.1518
    N9070 X-0.1275 Y0.1379
    N9075 X-0.1304 Y0.1351
    N9080 X-0.1434 Y0.1211
    N9085 X-0.1457 Y0.1185
    N9090 X-0.1585 Y0.1008
    N9095 X-0.1619 Y0.0947
    N9100 X-0.1691 Y0.0816
    N9105 X-0.1709 Y0.0777
    N9110 X-0.1786 Y0.0582
    N9115 X-0.1842 Y0.0365
    N9120 X-0.1849 Y0.0327
    N9125 X-0.1874 Y0.0123
    N9130 X-0.1875 Y0.0109
    N9135 Y-0.0107
    N9140 X-0.1872 Y-0.0142
    N9145 X-0.1847 Y-0.0337
    N9150 X-0.1843 Y-0.036
    N9155 X-0.1839 Y-0.0379
    N9160 X-0.1786 Y-0.0581
    N9165 X-0.1705 Y-0.0786
    N9170 X-0.1688 Y-0.0821
    N9175 X-0.1586 Y-0.1007
    N9180 X-0.1584 Y-0.101
    N9185 X-0.1458 Y-0.1184
    N9190 X-0.1426 Y-0.122
    N9195 X-0.1296 Y-0.1358
    N9200 X-0.1275 Y-0.1378
    N9205 X-0.1108 Y-0.1517
    N9210 X-0.1074 Y-0.1539
    N9215 X-0.0915 Y-0.1639
    N9220 X-0.0888 Y-0.1654
    N9225 X-0.0692 Y-0.1746
    N9230 X-0.0689 Y-0.1748
    N9235 X-0.0485 Y-0.1814
    N9240 X-0.0439 Y-0.1825
    N9245 X-0.0233 Y-0.1864
    N9250 X-0.0231
    N9255 X-0.0006 Y-0.1878
    N9260 X0.0029 Y-0.1877
    N9265 X0.0224 Y-0.1864
    N9270 X0.0249 Y-0.1861
    N9275 X0.0464 Y-0.182
    N9280 X0.0478 Y-0.1816
    N9285 X0.0673 Y-0.1753
    N9290 X0.0709 Y-0.1739
    N9295 X0.0903 Y-0.1647
    N9300 X0.0939 Y-0.1625
    N9305 X0.1094 Y-0.1526
    N9310 X0.1122 Y-0.1505
    N9315 X0.1279 Y-0.1375
    N9320 X0.1291 Y-0.1364
    N9325 X0.144 Y-0.1205
    N9330 X0.1464 Y-0.1175
    N9335 X0.1577 Y-0.1018
    N9340 X0.1596 Y-0.0989
    N9345 X0.1701 Y-0.0797
    N9350 X0.1781 Y-0.0594
    N9355 X0.1794 Y-0.0552
    N9360 X0.1845 Y-0.0353
    N9365 X0.1846 Y-0.035
    N9370 X0.1874 Y-0.0129
    N9375 X0.1875 Y-0.0083
    N9380 Y0.0103
    N9385 X0.1874 Y0.0127
    N9390 X0.1846 Y0.0347
    N9395 X0.1838 Y0.0379
    N9400 X0.1792 Y0.0561
    N9405 X0.1779 Y0.0601
    N9410 X0.1698 Y0.0803
    N9415 X0.1591 Y0.0997
    N9420 X0.1573 Y0.1024
    N9425 X0.1454 Y0.1188
    N9430 X0.1442 Y0.1204
    N9435 X0.1292 Y0.1363
    N9440 X0.1264 Y0.1388
    N9445 X0.1163 Y0.1471
    N9450 G3 X0.0216 Y0.0845 Z-0.1727 I-0.0378 J-0.0457 F6.1
    N9455 G1 X0.0416 Y0.0169 Z-0.1786
    N9460 G2 X0.0441 Y0. Z-0.18 I-0.0569 J-0.0169
    N9465 G3 X0.0747 I0.0153 J0. F24.
    N9470 X-0.0747 I-0.0747 J0.
    N9475 X0.0747 I0.0747 J0.
    N9480 G2 X0.1119 Y0.0689 I0.0823 J0.
    N9485 G3 X0.1163 Y0.1471 I-0.0266 J0.0407
    N9490 G1 X0.1123 Y0.1504
    N9495 X0.1088 Y0.153
    N9500 X0.0907 Y0.1645
    N9505 X0.0902 Y0.1648
    N9510 X0.0709 Y0.1739
    N9515 X0.0673 Y0.1753
    N9520 X0.0466 Y0.182
    N9525 X0.0463 Y0.1821
    N9530 X0.0249 Y0.1861
    N9535 X0.0214 Y0.1865
    N9540 X0.0011 Y0.1878
    N9545 X-0.0014
    N9550 X-0.0229 Y0.1864
    N9555 X-0.0253 Y0.1861
    N9560 X-0.0448 Y0.1823
    N9565 X-0.0484 Y0.1814
    N9570 X-0.0692 Y0.1747
    N9575 X-0.0888 Y0.1655
    N9580 X-0.0925 Y0.1634
    N9585 X-0.11 Y0.1522
    N9590 X-0.1106 Y0.1518
    N9595 X-0.1275 Y0.1379
    N9600 X-0.1304 Y0.1351
    N9605 X-0.1434 Y0.1211
    N9610 X-0.1457 Y0.1185
    N9615 X-0.1585 Y0.1008
    N9620 X-0.1619 Y0.0947
    N9625 X-0.1691 Y0.0816
    N9630 X-0.1709 Y0.0777
    N9635 X-0.1786 Y0.0582
    N9640 X-0.1842 Y0.0365
    N9645 X-0.1849 Y0.0327
    N9650 X-0.1874 Y0.0123
    N9655 X-0.1875 Y0.0109
    N9660 Y-0.0107
    N9665 X-0.1872 Y-0.0142
    N9670 X-0.1847 Y-0.0337
    N9675 X-0.1843 Y-0.036
    N9680 X-0.1839 Y-0.0379
    N9685 X-0.1786 Y-0.0581
    N9690 X-0.1705 Y-0.0786
    N9695 X-0.1688 Y-0.0821
    N9700 X-0.1586 Y-0.1007
    N9705 X-0.1584 Y-0.101
    N9710 X-0.1458 Y-0.1184
    N9715 X-0.1426 Y-0.122
    N9720 X-0.1296 Y-0.1358
    N9725 X-0.1275 Y-0.1378
    N9730 X-0.1108 Y-0.1517
    N9735 X-0.1074 Y-0.1539
    N9740 X-0.0915 Y-0.1639
    N9745 X-0.0888 Y-0.1654
    N9750 X-0.0692 Y-0.1746
    N9755 X-0.0689 Y-0.1748
    N9760 X-0.0485 Y-0.1814
    N9765 X-0.0439 Y-0.1825
    N9770 X-0.0233 Y-0.1864
    N9775 X-0.0231
    N9780 X-0.0006 Y-0.1878
    N9785 X0.0029 Y-0.1877
    N9790 X0.0224 Y-0.1864
    N9795 X0.0249 Y-0.1861
    N9800 X0.0464 Y-0.182
    N9805 X0.0478 Y-0.1816
    N9810 X0.0673 Y-0.1753
    N9815 X0.0709 Y-0.1739
    N9820 X0.0903 Y-0.1647
    N9825 X0.0939 Y-0.1625
    N9830 X0.1094 Y-0.1526
    N9835 X0.1122 Y-0.1505
    N9840 X0.1279 Y-0.1375
    N9845 X0.1291 Y-0.1364
    N9850 X0.144 Y-0.1205
    N9855 X0.1464 Y-0.1175
    N9860 X0.1577 Y-0.1018
    N9865 X0.1596 Y-0.0989
    N9870 X0.1701 Y-0.0797
    N9875 X0.1781 Y-0.0594
    N9880 X0.1794 Y-0.0552
    N9885 X0.1845 Y-0.0353
    N9890 X0.1846 Y-0.035
    N9895 X0.1874 Y-0.0129
    N9900 X0.1875 Y-0.0083
    N9905 Y0.0103
    N9910 X0.1874 Y0.0127
    N9915 X0.1846 Y0.0347
    N9920 X0.1838 Y0.0379
    N9925 X0.1792 Y0.0561
    N9930 X0.1779 Y0.0601
    N9935 X0.1698 Y0.0803
    N9940 X0.1591 Y0.0997
    N9945 X0.1573 Y0.1024
    N9950 X0.1454 Y0.1188
    N9955 X0.1442 Y0.1204
    N9960 X0.1292 Y0.1363
    N9965 X0.1264 Y0.1388
    N9970 X0.1163 Y0.1471
    N9975 X0.1146 Y0.1483 Z-0.1798 F6.1
    N9980 X0.1127 Y0.1492 Z-0.1792
    N9985 X0.1108 Y0.1497 Z-0.1783
    N9990 X0.109 Y0.15 Z-0.1771
    N9995 X0.1074 Y0.1499 Z-0.1755
    N10000 X0.1062 Y0.1498 Z-0.1737
    N10005 X0.1053 Y0.1496 Z-0.1718
    N10010 X0.1048 Y0.1494 Z-0.1697
    N10015 X0.1046 Z-0.1675
    N10020 G0 Z0.6
    N10025 M5
    N10030 G53 G0 Z0.
    That code sucks because of the programming. its doing the hole in segments, I believe you can turn arc on or something like that and it will do rads.

    however here is a better one

    adjust it as need'd for depth and hole position... go to the tool number you are using to do the hole. put in the dia offset as the endmill you want to use. .125 for example


    I would predrill a hold almost to depth. Lets say you drill to .250 dia.

    G00 X0.0 Y0.0 ( change to your centerline of hole position)
    G01 Z-0.03 F6.0 (Feed down to depth you want first cut)
    G13 z-0.030 I0.1 k0.250 Q0.015 D1 F5.0 (this will start the circle at .200 DIA, take it to .500 DIA with .015 per side stock removal)

    I= bore start Rad. K= bore finish Rad. Q= width of cut D= tool dia offset

    to do many passes

    G00 X0.0 Y0.0
    G01 Z-0.03 F6.0
    G13 Z-0.030 I0.1 k0.250 Q0.015 D1 F5.0
    G00 Z0.1

    G01 Z-0.06 F6.0
    G13 Z-0.060 I0.1 k0.250 Q0.015 D1 F5.0
    G00 Z0.1
    etc etc

    G01 Z-0.06 F6.0
    G13 Z-0.060 I0.250 D1 F5.0 (Taking out the K and Q will just make a circle usually use this for finanl pass's)
    G00 Z0.1

    this starts in the middle uses cutter comp an spirals to size then spirals out. so it doesnt leeave a tool marks
    heres some pictures. try to find this Manual its one of the only thing HASS did right. its a pdf file and your Dealer should have access to it. they used it for there training seminars years ago ( My wife went to them and this is her old one). I looked last night for it on there sight to no avail. If I find a pdf file of it on my PC I will upload it.
    Hass should send this out with ever Machine, maybe they do now I dont know. its a life save for new programmers that are just starting out.
    img_2227a.jpg

    img_2226a.jpg

    img_2225a.jpg

    img_2224a.jpg

    img_2223a.jpg

  18. #15
    Join Date
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    I have the latest version of the Haas PDF GCODE/Machine Operation manual referenced above. It is a great resource for understanding GCODE and the machine interface. Send me a PM if you want the workbook PDF (also has a separate "Answers" PDF).


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