[minicncuser]

Ok we are using mastercam x4 on a 2006 Onsurd Router and any time we make a round cut all 4 points 0 90 180 270 have a mark in them too see pic. I thinking that it ight have something with the way it routs. Like if you make letters it almost comes to a stop in corners. (My little home made router just keeps going at feed rate) is this something in the post?

[Superman]

is this something in the post?

Well, put up your NC code........

This will tell us to look at either your machine, or..... the way Mastercam is set up & used ( including the post )

My instincts point to your machine ... either machine parameter setting, backlash, sloppiness in the guides, bad tooling choice / setup, slop in the X & Y axis drive assemblies on the table ( if it was just 1 axis, it would not happen at the 4 quad points )

- the quadrant positions are where the servos come to a stop & then reverse direction.....the main place where a tool's cutting action can actually move the table

[minicncuser]

%1000
(*** TOOL LIST ***)
( TOOL - 07 DIA. - .1875 3/16 ENDMILL )
( TOOL - 08 DIA. - .375 3/8 FLAT ENDMILL )
( TOOL - 07 )
( 6INCH HOLE )
N100 T7 D7
N102 L_brtc
N104 M06
N106 M03 S17000
N108 G00 X2.9911 Y55.9277
N110 Z1.1
N112 G01 Z0. F50.
N114 X2.9912 Y55.9278 F150.
N116 X2.9911 Y55.9279
N118 G03 I0. J-.0002
N120 G01 X2.991 Y55.9278
N122 X2.9911 Y55.9277
N124 Z1.1 F100.
N126 G00 X4.9911 Y55.9277
N128 G01 Z0. F50.
N130 X4.9912 Y55.9278 F150.
N132 X4.9911 Y55.9279
N134 G03 I0. J-.0002
N136 G01 X4.991 Y55.9278
N138 X4.9911 Y55.9277
N140 Z1.1 F100.
N142 G00 X2.9911 Y49.4277
N144 G01 Z0. F50.
N146 X2.9912 Y49.4278 F150.
N148 X2.9911 Y49.4279
N150 G03 I0. J-.0002
N152 G01 X2.991 Y49.4278
N154 X2.9911 Y49.4277
N156 Z1.1 F100.
N158 G00 X4.9911 Y49.4277
N160 G01 Z0. F50.
N162 X4.9912 Y49.4278 F150.
N164 X4.9911 Y49.4279
N166 G03 I0. J-.0002
N168 G01 X4.991 Y49.4278
N170 X4.9911 Y49.4277
N172 Z1.1 F100.
N174 G00 X2.9911 Y42.9277
N176 G01 Z0. F50.
N178 X2.9912 Y42.9278 F150.
N180 X2.9911 Y42.9279
N182 G03 I0. J-.0002
N184 G01 X2.991 Y42.9278
N186 X2.9911 Y42.9277
N188 Z1.1 F100.
N190 G00 X4.9911 Y42.9277
N192 G01 Z0. F50.
N194 X4.9912 Y42.9278 F150.
N196 X4.9911 Y42.9279
N198 G03 I0. J-.0002
N200 G01 X4.991 Y42.9278
N202 X4.9911 Y42.9277
N204 Z1.1 F100.
N206 G00 X2.9911 Y36.4277
N208 G01 Z0. F50.
N210 X2.9912 Y36.4278 F150.
N212 X2.9911 Y36.4279
N214 G03 I0. J-.0002
N216 G01 X2.991 Y36.4278
N218 X2.9911 Y36.4277
N220 Z1.1 F100.
N222 G00 X4.9911 Y36.4277
N224 G01 Z0. F50.
N226 X4.9912 Y36.4278 F150.
N228 X4.9911 Y36.4279
N230 G03 I0. J-.0002
N232 G01 X4.991 Y36.4278
N234 X4.9911 Y36.4277
N236 Z1.1 F100.
N238 G00 X2.9911 Y29.9277
N240 G01 Z0. F50.
N242 X2.9912 Y29.9278 F150.
N244 X2.9911 Y29.9279
N246 G03 I0. J-.0002
N248 G01 X2.991 Y29.9278
N250 X2.9911 Y29.9277
N252 Z1.1 F100.
N254 G00 X4.9911 Y29.9277
N256 G01 Z0. F50.
N258 X4.9912 Y29.9278 F150.
N260 X4.9911 Y29.9279
N262 G03 I0. J-.0002
N264 G01 X4.991 Y29.9278
N266 X4.9911 Y29.9277
N268 Z1.1 F100.
N270 G00 X2.9911 Y23.4277
N272 G01 Z0. F50.
N274 X2.9912 Y23.4278 F150.
N276 X2.9911 Y23.4279
N278 G03 Y23.428 I0. J-.0003
N280 G01 X2.9909 Y23.4278
N282 X2.9911 Y23.4276
N284 Y23.4277 Z1.1 F100.
N286 G00 X4.9911 Y23.4277
N288 G01 Z0. F50.
N290 X4.9912 Y23.4278 F150.
N292 X4.9911 Y23.4279
N294 G03 Y23.428 I0. J-.0003
N296 G01 X4.9909 Y23.4278
N298 X4.9911 Y23.4276
N300 Y23.4277 Z1.1 F100.
N302 G00 X4.9911 Y16.9277
N304 G01 Z0. F50.
N306 X4.9912 Y16.9278 F150.
N308 X4.9911 Y16.9279
N310 G03 Y16.928 I0. J-.0003
N312 G01 X4.9909 Y16.9278
N314 X4.9911 Y16.9276
N316 Y16.9277 Z1.1 F100.
N318 G00 X2.9911 Y16.9277
N320 G01 Z0. F50.
N322 X2.9912 Y16.9278 F150.
N324 X2.9911 Y16.9279
N326 G03 Y16.928 I0. J-.0003
N328 G01 X2.9909 Y16.9278
N330 X2.9911 Y16.9276
N332 Y16.9277 Z1.1 F100.
( 6INCH HOLE )
N334 G00 X2.9911 Y55.9277
N336 G01 Z.35 F50.
N338 G03 X3.0298 Y55.9664 I0. J.0387 F150.
N340 X2.9911 Y56.0052 I-.0387 J0.
N342 I0. J-.0775
N344 X2.9523 Y55.9664 I0. J-.0388
N346 X2.9911 Y55.9277 I.0388 J0.
N348 G01 Z1.1 F100.
N350 G00 X4.9911 Y55.9277
N352 G01 Z.35 F50.
N354 G03 X5.0298 Y55.9664 I0. J.0387 F150.
N356 X4.9911 Y56.0052 I-.0387 J0.
N358 I0. J-.0775
N360 X4.9523 Y55.9664 I0. J-.0388
N362 X4.9911 Y55.9277 I.0388 J0.
N364 G01 Z1.1 F100.
N366 G00 X2.9911 Y49.4277
N368 G01 Z.35 F50.
N370 G03 X3.0298 Y49.4664 I0. J.0387 F150.
N372 X2.9911 Y49.5052 I-.0387 J0.
N374 I0. J-.0775
N376 X2.9523 Y49.4664 I0. J-.0388
N378 X2.9911 Y49.4277 I.0388 J0.
N380 G01 Z1.1 F100.
N382 G00 X4.9911 Y49.4277
N384 G01 Z.35 F50.
N386 G03 X5.0298 Y49.4664 I0. J.0387 F150.
N388 X4.9911 Y49.5052 I-.0387 J0.
N390 I0. J-.0775
N392 X4.9523 Y49.4664 I0. J-.0388
N394 X4.9911 Y49.4277 I.0388 J0.
N396 G01 Z1.1 F100.
N398 G00 X2.9911 Y42.9277
N400 G01 Z.35 F50.
N402 G03 X3.0298 Y42.9664 I0. J.0387 F150.
N404 X2.9911 Y43.0052 I-.0387 J0.
N406 I0. J-.0775
N408 X2.9523 Y42.9664 I0. J-.0388
N410 X2.9911 Y42.9277 I.0388 J0.
N412 G01 Z1.1 F100.
N414 G00 X4.9911 Y42.9277
N416 G01 Z.35 F50.
N418 G03 X5.0298 Y42.9664 I0. J.0387 F150.
N420 X4.9911 Y43.0052 I-.0387 J0.
N422 I0. J-.0775
N424 X4.9523 Y42.9664 I0. J-.0388
N426 X4.9911 Y42.9277 I.0388 J0.
N428 G01 Z1.1 F100.
N430 G00 X2.9911 Y36.4277
N432 G01 Z.35 F50.
N434 G03 X3.0298 Y36.4664 I0. J.0387 F150.
N436 X2.9911 Y36.5052 I-.0387 J0.
N438 I0. J-.0775
N440 X2.9523 Y36.4664 I0. J-.0388
N442 X2.9911 Y36.4277 I.0388 J0.
N444 G01 Z1.1 F100.
N446 G00 X4.9911 Y36.4277
N448 G01 Z.35 F50.
N450 G03 X5.0298 Y36.4664 I0. J.0387 F150.
N452 X4.9911 Y36.5052 I-.0387 J0.
N454 I0. J-.0775
N456 X4.9523 Y36.4664 I0. J-.0388
N458 X4.9911 Y36.4277 I.0388 J0.
N460 G01 Z1.1 F100.
N462 G00 X2.9911 Y29.9277
N464 G01 Z.35 F50.
N466 G03 X3.0298 Y29.9664 I0. J.0387 F150.
N468 X2.9911 Y30.0052 I-.0387 J0.
N470 I0. J-.0775
N472 X2.9523 Y29.9664 I0. J-.0388
N474 X2.9911 Y29.9277 I.0388 J0.
N476 G01 Z1.1 F100.
N478 G00 X4.9911 Y29.9277
N480 G01 Z.35 F50.
N482 G03 X5.0298 Y29.9664 I0. J.0387 F150.
N484 X4.9911 Y30.0052 I-.0387 J0.
N486 I0. J-.0775
N488 X4.9523 Y29.9664 I0. J-.0388
N490 X4.9911 Y29.9277 I.0388 J0.
N492 G01 Z1.1 F100.
N494 G00 X2.9911 Y23.4277
N496 G01 Z.35 F50.
N498 G03 X3.0299 Y23.4665 I0. J.0388 F150.
N500 X2.9911 Y23.5052 I-.0388 J0.
N502 I0. J-.0775
N504 X2.9524 Y23.4665 I0. J-.0387
N506 X2.9911 Y23.4277 I.0387 J0.
N508 G01 Z1.1 F100.
N510 G00 X4.9911 Y23.4277
N512 G01 Z.35 F50.
N514 G03 X5.0299 Y23.4665 I0. J.0388 F150.
N516 X4.9911 Y23.5052 I-.0388 J0.
N518 I0. J-.0775
N520 X4.9524 Y23.4665 I0. J-.0387
N522 X4.9911 Y23.4277 I.0387 J0.
N524 G01 Z1.1 F100.
N526 G00 X4.9911 Y16.9277
N528 G01 Z.35 F50.
N530 G03 X5.0299 Y16.9665 I0. J.0388 F150.
N532 X4.9911 Y17.0052 I-.0388 J0.
N534 I0. J-.0775
N536 X4.9524 Y16.9665 I0. J-.0387
N538 X4.9911 Y16.9277 I.0387 J0.
N540 G01 Z1.1 F100.
N542 G00 X2.9911 Y16.9277
N544 G01 Z.35 F50.
N546 G03 X3.0299 Y16.9665 I0. J.0388 F150.
N548 X2.9911 Y17.0052 I-.0388 J0.
N550 I0. J-.0775
N552 X2.9524 Y16.9665 I0. J-.0387
N554 X2.9911 Y16.9277 I.0387 J0.
N556 G01 Z1.1 F100.
N558 M05
( TOOL - 08 )
( CUT )
N560 T8 D8
N562 L_brtc
N564 M06
N566 M03 S18000
N568 G00 X7.1786 Y24.6777
N570 Z1.625
N572 G01 Z.5 F50.
N574 Y23.4277 Z0.
N576 G02 I-3.1875 J0. F100.
N578 G01 Y22.1777 Z.5
N580 G00 X7.1786 Y22.1777 Z1.
N582 X7.1786 Y22.1777 Z1.625
N584 X7.1786 Y31.1777
N586 G01 Z.5 F50.
N588 Y29.9277 Z0.
N590 G02 I-3.1875 J0. F100.
N592 G01 Y28.6777 Z.5
N594 G00 X7.1786 Y28.6777 Z1.
N596 X7.1786 Y28.6777 Z1.625
N598 X7.1786 Y37.6777
N600 G01 Z.5 F50.
N602 Y36.4277 Z0.
N604 G02 I-3.1875 J0. F100.
N606 G01 Y35.1777 Z.5
N608 G00 X7.1786 Y35.1777 Z1.
N610 X7.1786 Y35.1777 Z1.625
N612 X7.1786 Y44.1777
N614 G01 Z.5 F50.
N616 Y42.9277 Z0.
N618 G02 I-3.1875 J0. F100.
N620 G01 Y41.6777 Z.5
N622 G00 X7.1786 Y41.6777 Z1.
N624 X7.1786 Y41.6777 Z1.625
N626 X7.1786 Y50.6777
N628 G01 Z.5 F50.
N630 Y49.4277 Z0.
N632 G02 I-3.1875 J0. F100.
N634 G01 Y48.1777 Z.5
N636 G00 X7.1786 Y48.1777 Z1.
N638 X7.1786 Y48.1777 Z1.625
N640 X7.1786 Y57.1777
N642 G01 Z.5 F50.
N644 Y55.9277 Z0.
N646 G02 I-3.1875 J0. F100.
N648 G01 Y54.6777 Z.5
N650 G00 X7.1786 Y54.6777 Z1.
N652 X7.1786 Y54.6777 Z1.625
N654 X7.1786 Y18.1777
N656 G01 Z.5 F50.
N658 Y16.9277 Z0.
N660 G02 I-3.1875 J0. F100.
N662 G01 Y15.6777 Z.5
N664 G00 X7.1786 Y15.6777 Z1.
N666 M05
N668 M30

[minicncuser]

It would be the tool 8

[Superman]

%1000
(*** TOOL LIST ***)
(  TOOL - 07    DIA. - .1875    3/16 ENDMILL )
(  TOOL - 08    DIA. - .375     3/8 FLAT ENDMILL )
(  TOOL - 07 )
( 6INCH HOLE )
N100 T7 D7.
...
N558 M05
(  TOOL - 08 )
( CUT )
N560 T8 D8
N562 L_brtc
N564 M06
N566 M03 S18000
N568 G00 X7.1786 Y24.6777
N570 Z1.625
N572 G01 Z.5 F50. (descend to top of part )
N574 Y23.4277 Z0. ( move Y-1.25 & Descend to depth ) <--- 
N576 G02 I-3.1875 J0. F100. ( full circle move )
N578 G01 Y22.1777 Z.5 ( move Y-1.25 & retract to top of part ) <---- 
N580 G00 X7.1786 Y22.1777 Z1. ( Rapid to Z1.0 )
N582 X7.1786 Y22.1777 Z1.625 ( Rapid to Z1.625 )
N584 X7.1786 Y31.1777
N586 G01 Z.5 F50.
N588 Y29.9277 Z0.
....
N668 M30

.. the blue moves seem OK
I'd question the red moves, as they descend as Y is being positioned against the part. The same for when leaving the part...may cause tool flex....but this is at 1 place only
- there is no other stoppage of the code at the other quadrant points for each circle .... so... IMO...the NC code for T8 is not causing the issues.....I'd look towards it being a machine fault

T7 seems to be just doing small circles

[CrossfireX]

Mini,

I cannot comment on your particular situation as i am unfamiliar with your setup, however, at work i have a large horizontal borer and it pretty much does the same job day in, day out 24 hours a day, 7 days a week. about 2-3 years ago we started noticing the same thing. We were interpolating the bores, then finishing them with boring bars for correct finish, final cut around 0.25mm. we started noticing these flat spots at the 12:00, 3:00, 6:00 and 9:00 marks. in extreme cases, we found that the boring bar was unable to cleanup these areas completely. our machine is a Hyundai, and we contacted our support personnel and they assured us it was a programming issue. after many hours (we actually spent 2 full shifts) trying different coding etc. eventually we contacted support again and they flew someone up to take a look. As it turned out, it was wear in the ways and screws and was not repairable without spending big money. We adjusted as best we can, fiddled with the coding, and made a point of leaving extra green prior to boring, and this has kept us in business. not sure if this is a similar problem to what you're having, but maybe check for wear and backlash before you get too frustrated.

hope this helps.

Cheers

Jason

[bobcad guy]

i would immediately suspect the machine. your backlash compensation is probably the problem. backlash comp is what tells the servos how much play is in your ball screws, so every time the screw changes direction, the servo knows how far to move the lead screw before it actually starts to move the table.

[minicncuser]

I posted a small program and bought it home and ran it on my little homemade router and there was none. So i do think it will be a machine fault I bring it up to the big boss thanks for your help guys

[mr_ping]

Looks like backlash caused marks or equivalent ?

[Ruger]

Hey Guys. No one is asking about how much tool load is present. I've seen many job shops cut the material to just over the final diameter and the tool flexes its way around the perimeter because it is completely buried until it gets to the 12,3,6 and 9 positions then it digs in because its not under load trying to climb out. I assume this cut is being done clockwise.. My gut says its the machine screws or servos, but taking a lighter second pass could eliminate this.

[mr_ping]

My machine did the exact same when I had too much backlash compensation on, but sure it can be that the roughing is too near final diameter.