Swarf repositions with small rapid steps

[Mattxer]

Not sure if its a setting I missed but I feel like this reposition move would be a smooth TCPC move instead of tiny rapids.

[seth.madore]

Does your machine have a Look ahead option, and is it turned on during that period?

[Mattxer]

Yeah, Its a NGC VF4SS with DWO, TCPC, and look ahead should be active. I feel like with TCPC it should just be one smooth move. It looks like TCPC stays active the whole time. Unfortunately I can't share the file.

Here is the posted code:

(Using G0 which travels along dogleg path.)
(T6 D=0.1873 CR=0. - flat end mill)
N10 G90 G94 G17
N15 G20
N20 G53 G0 Z0.

(Swarf1)
N25 T6 M6
N30 S7360 M3
N35 G54
N40 M11
N45 M13
N50 G0 A7. C0.
N55 M8
N60 G254
N65 G0 X5.333 Y-1.3139
N70 G255
N75 G234 Y-1.0371 Z2.335 H6
N80 G0 A7. C0.
N85 Z1.9199
N90 G1 Y-1.0431 Z1.8711 F25.612
N95 Y-1.0491 Z1.8222
N100 Y-1.0551 Z1.7734
N105 Y-1.0611 Z1.7245
N110 Y-1.0671 Z1.6756
N115 Y-1.0731 Z1.6268
N120 Y-1.0791 Z1.5779
N125 Y-1.0851 Z1.529
N130 Y-1.0911 Z1.4802
N135 Y-1.0971 Z1.4313
N140 Y-1.1031 Z1.3825
N145 Y-1.1091 Z1.3336
N150 Y-1.1151 Z1.2847
N155 Y-1.1211 Z1.2359
N160 Y-1.1271 Z1.187
N165 Y-1.1331 Z1.1381
N170 Y-1.1391 Z1.0893
N175 X5.283 F8.
N180 X5.233
N185 X5.183
N190 X5.133
N195 X5.083
N200 X5.033
N205 X4.9873 A7.003 C1.634
N210 X4.9416 A7.011 C3.266
N215 X4.8959 A7.025 C4.892
N220 X4.8502 A7.045 C6.511
N225 X4.8045 A7.07 C8.12
N230 X4.7588 A7.101 C9.716
N235 X4.7131 A7.137 C11.297
N240 X4.6674 A7.178 C12.861
N245 X4.65 Y-1.1406 A7.451 C13.114
N250 X4.6461 Y-1.1413 A7.591 C13.119
N255 X4.6402 Y-1.1428 A7.812 C13.204
N260 X4.6345 Y-1.1448 A8.106 C13.288
N265 X4.6343 Y-1.145 A8.233 C15.528
N270 X4.634 Y-1.1452 A8.361 C17.768
N275 X4.6338 Y-1.1454 A8.513 C19.865
N280 X4.6336 Y-1.1456 A8.665 C21.961
N285 X4.6333 Y-1.1459 A8.808 C23.828
N290 X4.633 Y-1.1461 A8.952 C25.696
N295 X4.6327 Y-1.1463 A9.06 C27.566
N300 X4.6324 Y-1.1465 A9.168 C29.437
N305 X4.6317 Y-1.1471 A9.335 C33.052
N310 X4.631 Y-1.1476 A9.456 C36.657
N315 X4.6297 Y-1.1488 A9.592 C43.831
N320 X4.6285 Y-1.15 A9.557 C51.054
N325 X4.628 Y-1.1507 A9.488 C54.699
N330 X4.6275 Y-1.1513 A9.353 C58.345
N335 X4.627 Y-1.1518 A9.15 C62.094
N340 X4.6266 Y-1.1523 A8.952 C64.892
N345 X4.6262 Y-1.1528 A8.754 C67.689
N350 X4.6258 Y-1.1531 A8.55 C70.758
N355 X4.6254 Y-1.1535 A8.345 C73.826
N360 X4.6251 Y-1.1539 A8.213 C76.032
N365 X4.6248 Y-1.1543 A8.082 C78.238
N370 X4.6234 Y-1.1581 A7.856 C78.532
N375 X4.6224 Y-1.1622 A7.692 C78.737
N380 X4.6211 Y-1.1706 A7.442 C79.118
N385 X4.6201 Y-1.179 A7.302 C79.635
N390 X4.6193 Y-1.1958 A7.151 C80.792
N395 Y-1.2149 A7.116 C82.304
N400 X4.6192 Y-1.2339 A7.081 C83.816
N405 Y-1.2529 A7.056 C85.353
N410 X4.6191 Y-1.2719 A7.031 C86.89
N415 X4.619 Y-1.291 A7.016 C88.445
N420 Y-1.31 A7.001 C90.
N425 Y-1.36
N430 Y-1.41
N435 Y-1.46
N440 Y-1.51
N445 Y-1.56
N450 Y-1.61
N455 G0 X4.517 Z1.9199
N460 Z1.935
N465 X4.5578 Y-1.5814 A6.662 C86.974
N470 X4.5986 Y-1.5527 A6.343 C83.636
N475 X4.6394 Y-1.5241 A6.048 C79.96
N480 X4.6802 Y-1.4954 A5.78 C75.926
N485 X4.721 Y-1.4668 A5.543 C71.525
N490 X4.7618 Y-1.4381 A5.341 C66.764
N495 X4.8026 Y-1.4095 A5.179 C61.668
N500 X4.8434 Y-1.3808 A5.06 C56.288
N505 X4.8842 Y-1.3522 A4.987 C50.701
N510 X4.925 Y-1.3235 A4.962 C45.005
N515 X4.9658 Y-1.2949 A4.987 C39.308
N520 X5.0066 Y-1.2662 A5.06 C33.721
N525 X5.0474 Y-1.2376 A5.179 C28.34
N530 X5.0882 Y-1.2089 A5.341 C23.243
N535 X5.129 Y-1.1803 A5.542 C18.481
N540 X5.1698 Y-1.1517 A5.779 C14.079
N545 X5.2106 Y-1.123 A6.047 C10.044
N550 X5.2514 Y-1.0944 A6.342 C6.366
N555 X5.2922 Y-1.0657 A6.661 C3.027
N560 X5.333 Y-1.0371 A7. C0.
N565 Z1.9199
N570 G1 Y-1.0431 Z1.8711 F25.612
N575 Y-1.0491 Z1.8222
N580 Y-1.0551 Z1.7734
N585 Y-1.0611 Z1.7245
N590 Y-1.0671 Z1.6756
N595 Y-1.0731 Z1.6268
N600 Y-1.0791 Z1.5779
N605 Y-1.0851 Z1.529
N610 Y-1.0911 Z1.4802
N615 Y-1.0971 Z1.4313
N620 Y-1.1031 Z1.3825
N625 Y-1.1091 Z1.3336
N630 Y-1.1151 Z1.2847
N635 Y-1.1211 Z1.2359
N640 Y-1.1271 Z1.187
N645 Y-1.1331 Z1.1381
N650 Y-1.1391 Z1.0893
N655 X5.283 F8.
N660 X5.233
N665 X5.183
N670 X5.133
N675 X5.083
N680 X5.033
N685 X4.9873 A7.003 C1.634
N690 X4.9416 A7.011 C3.266
N695 X4.8959 A7.025 C4.892
N700 X4.8502 A7.045 C6.511
N705 X4.8045 A7.07 C8.12
N710 X4.7588 A7.101 C9.716
N715 X4.7131 A7.137 C11.297
N720 X4.6674 A7.178 C12.861
N725 X4.65 Y-1.1406 A7.451 C13.114
N730 X4.6461 Y-1.1413 A7.591 C13.119
N735 X4.6402 Y-1.1428 A7.812 C13.204
N740 X4.6345 Y-1.1448 A8.106 C13.288
N745 X4.6343 Y-1.145 A8.233 C15.528
N750 X4.634 Y-1.1452 A8.361 C17.768
N755 X4.6338 Y-1.1454 A8.513 C19.865
N760 X4.6336 Y-1.1456 A8.665 C21.961
N765 X4.6333 Y-1.1459 A8.808 C23.828
N770 X4.633 Y-1.1461 A8.952 C25.696
N775 X4.6327 Y-1.1463 A9.06 C27.566
N780 X4.6324 Y-1.1465 A9.168 C29.437
N785 X4.6317 Y-1.1471 A9.335 C33.052
N790 X4.631 Y-1.1476 A9.456 C36.657
N795 X4.6297 Y-1.1488 A9.592 C43.831
N800 X4.6285 Y-1.15 A9.557 C51.054
N805 X4.628 Y-1.1507 A9.488 C54.699
N810 X4.6275 Y-1.1513 A9.353 C58.345
N815 X4.627 Y-1.1518 A9.15 C62.094
N820 X4.6266 Y-1.1523 A8.952 C64.892
N825 X4.6262 Y-1.1528 A8.754 C67.689
N830 X4.6258 Y-1.1531 A8.55 C70.758
N835 X4.6254 Y-1.1535 A8.345 C73.826
N840 X4.6251 Y-1.1539 A8.213 C76.032
N845 X4.6248 Y-1.1543 A8.082 C78.238
N850 X4.6234 Y-1.1581 A7.856 C78.532
N855 X4.6224 Y-1.1622 A7.692 C78.737
N860 X4.6211 Y-1.1706 A7.442 C79.118
N865 X4.6201 Y-1.179 A7.302 C79.635
N870 X4.6193 Y-1.1958 A7.151 C80.792
N875 Y-1.2149 A7.116 C82.304
N880 X4.6192 Y-1.2339 A7.081 C83.816
N885 Y-1.2529 A7.056 C85.353
N890 X4.6191 Y-1.2719 A7.031 C86.89
N895 X4.619 Y-1.291 A7.016 C88.445
N900 Y-1.31 A7.001 C90.
N905 Y-1.36
N910 Y-1.41
N915 Y-1.46
N920 Y-1.51
N925 Y-1.56
N930 Y-1.61
N935 G0 X4.517 Z1.9199
N940 Z2.335
N945 G49 (TCPC OFF)

N950 M5
N955 M9
N960 G53 G0 Z0.
N965 X2.5165
N970 G53 G0 Y0.
N975 G28 G91 C0.
N980 G90
N985 G0 A0. C0.
N990 M30

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 T 

[seth.madore]

I'm not a Haas or 5th axis guy (I really need to solve for the latter), but I'd expect to see at least a G103 command🤔

[Mattxer]

Why would you want to block look ahead? G103 on haas blocks look ahead.

[seth.madore]

Sorry, a G103 Pxx. Doesn't that put it into "look-ahead" mode so it buffers the rapid and feedmoves appropriately? I'm just spitballin here, as I have no hands-on experience with the Haas trunnions

[Mattxer]

Ah okay, for Haas 80 block look-ahead is always on. You use G103Px to either limit it to less blocks or turn it off. Otherwise its always active.

[Mattxer · Accepted solution]

Do you think its because I have preserve rapid on? Should I change that to Always Use High Feed? I'll have to give that a try after my current part is done.

[seth.madore]

Sorry, I was out of the office. I see you selected your last post as the solution, that's great! So, the key was to turn off Preserve Rapid?

[mattdlr89]

Hi @Mattxer 

I've noticed with our Haas that when doing G0 moves it will "stop" at each commanded position. For example if you did 

G0 X0.

X50. 

X100.

X150.

This will not be a smooth movement but by using G1 it would be smooth all the way through those commanded points. Looks like you've figured this out already but thought I'd share my experience. 

[Mattxer]

Yeah, I switched from Preserve rapid to Always use high feed for that particular toolpath.