[blmmdes]

Hi all,

Using NX 4.0.3.3. Our Wirecut machine's RS232 interface stopped working for unknown reasons and i want to print out the G code file so that we can type manually on the controller untill the DNC problem is solved.

I have a ceated a 4-axis wirecut program, the problem is the length of program (too many blocks) and I figured out that the program generated by NX is in point-point format and is not outputting the arcs. however my option under Start/End Events>Arc output is checked ON. It is not the problem of postprocessor either because i am using the default WIRE_EDM post provided by UGS by changing the output units to MM. The same post will output arcs in the case of a 2-axis program. i am attaching a sample file for your perusal. Please have a look and advice me.

For your info the motion format for our machine is X Y I J U V K L (XYIJ being programming plane co-ordinates and UVKL being auxillaryplane co-ordinates)

Thanks in advance

[Mike Stevenson]

Ananth,

I ran your part file through NX6 and this is the G-code I got:


N0010 G00 G90 X-1.0775 Y-.0984 U.3165 V0.0
N0020 G42 G01 X-1.0869 Y-.0801
N0030 X-1.0942 Y-.0608
N0040 X-1.0996 Y-.0409
N0050 X-1.1028 Y-.0206
N0060 X-1.1039 Y0.0
N0070 X-1.1023 Y.0582 U.316 V-.0167
N0080 X-1.0977 Y.1163 U.3147 V-.0333
N0090 X-1.0901 Y.1741 U.3125 V-.0499
N0100 X-1.0794 Y.2313 U.3094 V-.0663
N0110 X-1.0657 Y.2879 U.3055 V-.0825
N0120 X-1.049 Y.3438 U.3007 V-.0986
N0130 X-1.0294 Y.3986 U.2951 V-.1143
N0140 X-1.0069 Y.4524 U.2887 V-.1297
N0150 X-.9817 Y.5049 U.2814 V-.1447
N0160 X-.9537 Y.5559 U.2734 V-.1594
N0170 X-.923 Y.6055 U.2646 V-.1736
N0180 X-.8898 Y.6533 U.2551 V-.1873
N0190 X-.8541 Y.6994 U.2449 V-.2005
N0200 X-.816 Y.7434 U.2339 V-.2131
N0210 X-.7756 Y.7854 U.2224 V-.2252
N0220 X-.7331 Y.8253 U.2102 V-.2366
N0230 X-.6886 Y.8628 U.1974 V-.2474
N0240 X-.6421 Y.8979 U.1841 V-.2574
N0250 X-.5938 Y.9305 U.1702 V-.2668
N0260 X-.5439 Y.9606 U.1559 V-.2754
N0270 X-.4931 Y.9876 U.1414 V-.2831
N0280 X-.4409 Y1.012 U.1264 V-.2901
N0290 X-.3876 Y1.0336 U.1111 V-.2963
N0300 X-.3332 Y1.0524 U.0955 V-.3017
N0310 X-.2779 Y1.0683 U.0797 V-.3063
N0320 X-.2218 Y1.0814 U.0636 V-.31
N0330 X-.1651 Y1.0915 U.0473 V-.3129
N0340 X-.108 Y1.0986 U.031 V-.315
N0350 X-.0506 Y1.1027 U.0145 V-.3161
N0360 X.0069 Y1.1039 U-.002 V-.3165
N0370 X.0645 Y1.102 U-.0185 V-.3159
N0380 X.1218 Y1.0971 U-.0349 V-.3145
N0390 X.1788 Y1.0893 U-.0513 V-.3123
N0400 X.2354 Y1.0785 U-.0675 V-.3092
N0410 X.2913 Y1.0648 U-.0835 V-.3053
N0420 X.3464 Y1.0481 U-.0993 V-.3005
N0430 X.4006 Y1.0286 U-.1148 V-.2949
N0440 X.4536 Y1.0064 U-.1301 V-.2885
N0450 X.5055 Y.9813 U-.1449 V-.2813
N0460 X.5559 Y.9537 U-.1594 V-.2734
N0470 X.6049 Y.9234 U-.1734 V-.2647
N0480 X.6522 Y.8906 U-.187 V-.2553
N0490 X.6977 Y.8554 U-.2 V-.2452
N0500 X.7414 Y.8179 U-.2126 V-.2345
N0510 X.783 Y.7781 U-.2245 V-.2231
N0520 X.8225 Y.7362 U-.2358 V-.2111
N0530 X.8598 Y.6924 U-.2465 V-.1985
N0540 X.8947 Y.6466 U-.2565 V-.1854
N0550 X.9272 Y.5991 U-.2658 V-.1718
N0560 X.9571 Y.5499 U-.2744 V-.1577
N0570 X.9845 Y.4993 U-.2823 V-.1431
N0580 X1.0092 Y.4473 U-.2893 V-.1282
N0590 X1.0311 Y.3941 U-.2956 V-.113
N0600 X1.0503 Y.3398 U-.3011 V-.0974
N0610 X1.0666 Y.2846 U-.3058 V-.0816
N0620 X1.0799 Y.2286 U-.3096 V-.0655
N0630 X1.0904 Y.172 U-.3126 V-.0493
N0640 X1.0979 Y.1149 U-.3148 V-.0329
N0650 X1.1024 Y.0575 U-.316 V-.0165
N0660 X1.1039 Y0.0 U-.3165 V0.0
N0670 X1.1024 Y-.0575 U-.316 V.0165
N0680 X1.0979 Y-.1149 U-.3148 V.0329
N0690 X1.0904 Y-.172 U-.3126 V.0493
N0700 X1.0799 Y-.2286 U-.3096 V.0655
N0710 X1.0666 Y-.2846 U-.3058 V.0816
N0720 X1.0503 Y-.3398 U-.3011 V.0974
N0730 X1.0311 Y-.3941 U-.2956 V.113
N0740 X1.0092 Y-.4473 U-.2893 V.1282
N0750 X.9845 Y-.4993 U-.2823 V.1431
N0760 X.9571 Y-.5499 U-.2744 V.1577
N0770 X.9272 Y-.5991 U-.2658 V.1718
N0780 X.8947 Y-.6466 U-.2565 V.1854
N0790 X.8598 Y-.6924 U-.2465 V.1985
N0800 X.8225 Y-.7362 U-.2358 V.2111
N0810 X.783 Y-.7781 U-.2245 V.2231
N0820 X.7414 Y-.8179 U-.2126 V.2345
N0830 X.6977 Y-.8554 U-.2 V.2452
N0840 X.6522 Y-.8906 U-.187 V.2553
N0850 X.6049 Y-.9234 U-.1734 V.2647
N0860 X.5559 Y-.9537 U-.1594 V.2734
N0870 X.5055 Y-.9813 U-.1449 V.2813
N0880 X.4536 Y-1.0064 U-.1301 V.2885
N0890 X.4006 Y-1.0286 U-.1148 V.2949
N0900 X.3464 Y-1.0481 U-.0993 V.3005
N0910 X.2913 Y-1.0648 U-.0835 V.3053
N0920 X.2354 Y-1.0785 U-.0675 V.3092
N0930 X.1788 Y-1.0893 U-.0513 V.3123
N0940 X.1218 Y-1.0971 U-.0349 V.3145
N0950 X.0645 Y-1.102 U-.0185 V.3159
N0960 X.0069 Y-1.1039 U-.002 V.3165
N0970 X-.0506 Y-1.1027 U.0145 V.3161
N0980 X-.108 Y-1.0986 U.031 V.315
N0990 X-.1651 Y-1.0915 U.0473 V.3129
N1000 X-.2218 Y-1.0814 U.0636 V.31
N1010 X-.2779 Y-1.0683 U.0797 V.3063
N1020 X-.3332 Y-1.0524 U.0955 V.3017
N1030 X-.3876 Y-1.0336 U.1111 V.2963
N1040 X-.4409 Y-1.012 U.1264 V.2901
N1050 X-.4931 Y-.9876 U.1414 V.2831
N1060 X-.5439 Y-.9606 U.1559 V.2754
N1070 X-.5938 Y-.9305 U.1702 V.2668
N1080 X-.6421 Y-.8979 U.1841 V.2574
N1090 X-.6886 Y-.8628 U.1974 V.2474
N1100 X-.7331 Y-.8253 U.2102 V.2366
N1110 X-.7756 Y-.7854 U.2224 V.2252
N1120 X-.816 Y-.7434 U.2339 V.2131
N1130 X-.8541 Y-.6994 U.2449 V.2005
N1140 X-.8898 Y-.6533 U.2551 V.1873
N1150 X-.923 Y-.6055 U.2646 V.1736
N1160 X-.9537 Y-.5559 U.2734 V.1594
N1170 X-.9817 Y-.5049 U.2814 V.1447
N1180 X-1.0069 Y-.4524 U.2887 V.1297
N1190 X-1.0294 Y-.3986 U.2951 V.1143
N1200 X-1.049 Y-.3438 U.3007 V.0986
N1210 X-1.0657 Y-.2879 U.3055 V.0825
N1220 X-1.0794 Y-.2313 U.3094 V.0663
N1230 X-1.0901 Y-.1741 U.3125 V.0499
N1240 X-1.0977 Y-.1163 U.3147 V.0333
N1250 X-1.1023 Y-.0582 U.316 V.0167
N1260 X-1.1039 Y0.0 U.3165 V0.0
N1270 X-1.1028 Y.0206
N1280 X-1.0996 Y.0409
N1290 X-1.0942 Y.0608
N1300 X-1.0869 Y.0801
N1310 X-1.0775 Y.0984
N1320 G00 X0.0 Y0.0 U0.0
N1330 M02

By the way 4 axis simultaneous motion like your cone part needs is always going to be linear (point to point.)

[larrycoyle]

Mike,
Sorry if I fail to agree with you but any simultaneous motion should not be point to point. That is the whole purpose of simultaneous. I currently do five axis simultaneous and believe me if it was point to point, I would be extremely disappointed as this is not what I paid for.

[Mike Stevenson]

Mike,
Sorry if I fail to agree with you but any simultaneous motion should not be point to point. That is the whole purpose of simultaneous. I currently do five axis simultaneous and believe me if it was point to point, I would be extremely disappointed as this is not what I paid for.

Interestingly put, but what on earth are you talking about? He is cutting a cone shape with a 4 axis wire EDM machine using 4 axis simulataneous linear interpolation. How would you code it newbie?

[weirdharold]

Here is g-code I got , but had to change post's & some other setting's. Not real keen on NX5 Wire yet, but I will be !

N0010 ()
N0020 G00 G90 X-1.1039 Y0.0 G00 X-.7874 Y0.0
N0030 G42 G02 X-.5439 Y.9606 I-1.1039 J0.0 G02 X-.388 Y.6852 I-.7874 J0.0
N0040 G02 X1.1039 Y0.0 I-.5439 J.9606 G02 X.7874 Y0.0 I-.388 J.6852
N0050 G02 X-.5439 Y-.9606 I1.1039 J0.0 G02 X-.388 Y-.6852 I.7874 J0.0
N0060 G02 X-1.1039 Y0.0 I-.5439 J-.9606 G02 X-.7874 Y0.0 I-.388 J-.6852
N0070 G01 Y.0049 G01 X-.7878 Y.0036
N0080 G00 X0.0 Y0.0 G00 X0.0 Y0.0
N0090 M02 Harold C.

[Mike Stevenson]

Yeah, you run that code H.C.

[weirdharold]

Don't plan on doing anything with it. If you remember what blmmdes posted, he was trying to get his code to post with arc's instead of linear movement so he could manually input it in wire. Just showing it can be done, didn't say it was correct. HAVE A NICE DAY.





Harold C

[Mike Stevenson]

Actually Ananth said, "For your info the motion format for our machine is X Y I J U V K L (XYIJ being programming plane co-ordinates and UVKL being auxillaryplane co-ordinates)"

Where are your UVKL codes? Posting something and saying it can be done but its not correct is worthless.

[blmmdes]

Hi guys,

First of all thanks for your time spent on my problem.

Mike,
the output from NX6 is also in point to point format. i respect your preference of point to point output in 4axis simultanious moves but here the length of program is too long.

Harold,
Yes you got it right. thats the way i wanted. The first G02 in the block is programming plane co-ordinates and the next G02 in the same block is for auxillary plane co-ordinates. how did you achieved it? please explain. after postprocessing or before? i mean can you see coircular moves in the Listed *.cls file?

Regards

[weirdharold]

First I will say I think it is your post because I used the default 4th Axis post & got the same code Mike got. Having said that, go to your Operation Navigator, Right click on 4th axis & pick Edit\ Internal_Trim box -click Start/ End Events\ Machine Control box appears- check Start Events & open Edit \ User Defined Events box appears\ Highlight Set Modes- Click add\ Set Modes box appears\ under Arc Mode , change to circular & make any other changes that apply , & play. I hope this help's . Harold C

[blmmdes]

Hello Harold,

Please clarify...are you using the generic 4-axis post or its a customized one? Because i tried changing set mode>Circular but still my output is in linear moves.
Are you trying to say that i have work on my post processor to achieve this?

Thanks and Regards,

[weirdharold]

This is the data path to post I used; c: program files=UGS=NX5.0=Mach=resource=Postprocessor=wedm_4 axis_iso.pui . That is post I used to get code. Have a great day . Harold c

[blmmdes]

Thank you very much Harold, you made my day. I was unaware of a 4-axis wire post hidden in NX (since it was not appearing on my post dialog).
I will take forward from here. Thanks again.

[blmmdes]

Dear All,

Attached is a NX4 prt file and the nc output. After I modified my 4-axis wireedm post i am getting this output.

Just note the blocks in RED. why it is giving me 4 arc movements instaed of one. I mean after the liear movement

G01 X-35.84 Y40 G01 U-15.84 V20

cant i directly get

G03 X40. Y35.84 I0 J5 G03 U-20 V15.84 K0 L5

Normally programming directly on the machine follow this but whats wrong with NX4 or the post processor?

Please note my post is nothing but a copy of UG ISO wireedm post with upper plane letters changed to U, V, K and L.

Please advice.

[jelmerra]

did you check if the arc mode is quadrant or full circle?

[blmmdes]

It was Full Circle. But chaning to Quadrant doesnot help either. Still thoses extra G03 blocks are apprearing.

[jelmerra]

Most controllers do not accept full circle because there are two solutions in some instances. I suppose the only way around it is to change the postprocessor and combine the arcs.