well I'm losing my mind here. I am new to this and I built a rotary plasma table. I'm using sheetcam and mach3 and everything was working fine then my controller broke and I got the same one and replaced it and the torch now shuts off before the cut is complete. but I can see that mach3 is shutting it off by code and the light.
I tried to edit the M05 but still won't make it there.
I also made new parts and it still won't do it like the code from sheetcam is wrong.
If i run the code and trace with a marker it does exactly what it suppose to i don't know I'm at a lose
any help would be appreciated
thanks
torch shutting off early
Re: torch shutting off early
If the code from Sheetcam is shutting the torch down early, maybe you're using the wrong post-processor in Sheetcam? Perhaps if you post the g-code that is causing the problem someone may spot something. It also may help to tell us a little more about your equipment.
Steve
Steve
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bittner700
- Posts: 5
- Joined: Tue Sep 07, 2021 3:47 am
Re: torch shutting off early
Here is my g-code and i'm using a novusun nvcmv2.1 controller
N0010 (Filename: 12 in leg new.tap)
N0020 (Post processor: Mach3 plasma.scpost)
N0030 (Date: 30/10/2021)
N0040 G20 (Units: Inches)
N0050 G53 G90 G91.1 G40
N0060 F1
N0070 S500
N0080 (Part: 12 in leg new)
N0090 (Operation: Outside Offset, Tool 1 -0.000000 deep, T1: Primeweld)
N0100 M06 T1 F90.0 (Primeweld)
N0110 G00 Z0.3937
N0120 X0.7859 Y-0.0000
N0130 Z0.1181
N0140 M03
N0150 G04 P0.5
N0160 G01 Z0.0591 F3.937
N0170 G03 X0.7600 Y0.2691 I-1.4261 J-0.0011 F90.0
N0180 X0.4988 Y0.9271 I-2.0419 J-0.4298
N0190 G01 X0.4985 Y0.9275
N0200 X0.4526 Y1.0058
N0210 X0.4046 Y1.0840
N0220 X0.3550 Y1.1621
N0230 X0.2024 Y1.3976
N0240 X0.2022 Y1.3980
N0250 X0.1528 Y1.4766
N0260 X0.1524 Y1.4772
N0270 X0.1056 Y1.5560
N0280 G02 X0.0253 Y1.7162 I1.2782 J0.7415
N0290 X-0.0278 Y1.9213 I0.6247 J0.2710
N0300 G01 X-0.0279 Y1.9230
N0310 G02 X0.0628 Y2.2920 I0.6809 J0.0282
N0320 X0.1773 Y2.4898 I2.4361 J-1.2769
N0330 G01 X0.3801 Y2.8040
N0340 X0.4288 Y2.8821
N0350 X0.4758 Y2.9605
N0360 G03 X0.6691 Y3.3492 I-2.4359 J1.4538
N0370 X0.7600 Y4.1963 I-1.4214 J0.5808
N0380 X0.4988 Y4.8541 I-2.0424 J-0.4302
N0390 G01 X0.4985 Y4.8545
N0400 X0.4526 Y4.9328
N0410 X0.4046 Y5.0110
N0420 X0.3550 Y5.0891
N0430 X0.2024 Y5.3246
N0440 X0.2022 Y5.3250
N0450 X0.1528 Y5.4036
N0460 X0.1524 Y5.4042
N0470 X0.1056 Y5.4830
N0480 G02 X0.0253 Y5.6432 I1.2782 J0.7415
N0490 X-0.0278 Y5.8484 I0.6215 J0.2702
N0500 G01 X-0.0279 Y5.8500
N0510 G02 X0.0628 Y6.2190 I0.6805 J0.0283
N0520 X0.1773 Y6.4168 I2.4361 J-1.2769
N0530 G01 X0.3801 Y6.7310
N0540 X0.4289 Y6.8093
N0550 G03 X0.6013 Y7.1212 I-3.0402 J1.8841
N0560 X0.7859 Y7.8548 I-1.5464 J0.7790
N0570 M05
N0580 G00 Z0.3937
N0590 X12.5358 Y0.0000
N0600 Z0.1181
N0610 M03
N0620 G04 P0.5
N0630 G01 Z0.0591 F3.937
N0640 Y0.0393 F90.0
N0650 Y2.8274
N0660 Y7.8540
N0670 M05
N0680 G00 Z0.3937
N0690 M05 M30
N0010 (Filename: 12 in leg new.tap)
N0020 (Post processor: Mach3 plasma.scpost)
N0030 (Date: 30/10/2021)
N0040 G20 (Units: Inches)
N0050 G53 G90 G91.1 G40
N0060 F1
N0070 S500
N0080 (Part: 12 in leg new)
N0090 (Operation: Outside Offset, Tool 1 -0.000000 deep, T1: Primeweld)
N0100 M06 T1 F90.0 (Primeweld)
N0110 G00 Z0.3937
N0120 X0.7859 Y-0.0000
N0130 Z0.1181
N0140 M03
N0150 G04 P0.5
N0160 G01 Z0.0591 F3.937
N0170 G03 X0.7600 Y0.2691 I-1.4261 J-0.0011 F90.0
N0180 X0.4988 Y0.9271 I-2.0419 J-0.4298
N0190 G01 X0.4985 Y0.9275
N0200 X0.4526 Y1.0058
N0210 X0.4046 Y1.0840
N0220 X0.3550 Y1.1621
N0230 X0.2024 Y1.3976
N0240 X0.2022 Y1.3980
N0250 X0.1528 Y1.4766
N0260 X0.1524 Y1.4772
N0270 X0.1056 Y1.5560
N0280 G02 X0.0253 Y1.7162 I1.2782 J0.7415
N0290 X-0.0278 Y1.9213 I0.6247 J0.2710
N0300 G01 X-0.0279 Y1.9230
N0310 G02 X0.0628 Y2.2920 I0.6809 J0.0282
N0320 X0.1773 Y2.4898 I2.4361 J-1.2769
N0330 G01 X0.3801 Y2.8040
N0340 X0.4288 Y2.8821
N0350 X0.4758 Y2.9605
N0360 G03 X0.6691 Y3.3492 I-2.4359 J1.4538
N0370 X0.7600 Y4.1963 I-1.4214 J0.5808
N0380 X0.4988 Y4.8541 I-2.0424 J-0.4302
N0390 G01 X0.4985 Y4.8545
N0400 X0.4526 Y4.9328
N0410 X0.4046 Y5.0110
N0420 X0.3550 Y5.0891
N0430 X0.2024 Y5.3246
N0440 X0.2022 Y5.3250
N0450 X0.1528 Y5.4036
N0460 X0.1524 Y5.4042
N0470 X0.1056 Y5.4830
N0480 G02 X0.0253 Y5.6432 I1.2782 J0.7415
N0490 X-0.0278 Y5.8484 I0.6215 J0.2702
N0500 G01 X-0.0279 Y5.8500
N0510 G02 X0.0628 Y6.2190 I0.6805 J0.0283
N0520 X0.1773 Y6.4168 I2.4361 J-1.2769
N0530 G01 X0.3801 Y6.7310
N0540 X0.4289 Y6.8093
N0550 G03 X0.6013 Y7.1212 I-3.0402 J1.8841
N0560 X0.7859 Y7.8548 I-1.5464 J0.7790
N0570 M05
N0580 G00 Z0.3937
N0590 X12.5358 Y0.0000
N0600 Z0.1181
N0610 M03
N0620 G04 P0.5
N0630 G01 Z0.0591 F3.937
N0640 Y0.0393 F90.0
N0650 Y2.8274
N0660 Y7.8540
N0670 M05
N0680 G00 Z0.3937
N0690 M05 M30
Re: torch shutting off early
I looked at your code and nothing jumped out at me. You said that a marker traces the cut OK, so it kinda seems like you are losing your Arc OK signal for some reason. Does it quit cutting in the same spot each time, or is it kinda radom?
Re: torch shutting off early
Try lowering the torch a bit. and check your ground clamp has a good connection. Sounds like you are loosing arc ok. Maybe this machine is a bit different.
Possible causes: too high, too fast, electrical noise, too low current through the internal relay resulting in oxidised contacts and intemittent operation.
Possible causes: too high, too fast, electrical noise, too low current through the internal relay resulting in oxidised contacts and intemittent operation.
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robertspark
- Posts: 257
- Joined: Thu Feb 26, 2015 12:11 am
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bittner700
- Posts: 5
- Joined: Tue Sep 07, 2021 3:47 am
Re: torch shutting off early
sorry for the late post,
I have been trying everything under the sun to get this thing to work.
I'm not sure where to get the firmware version but i can tell you that I'm on my second controller.
The first one work great until i tripped over the usb cord to the controller and bent the usb port on the controller but it still worked for a couple of weeks but i ordered a second one just to have when it decided to quit.
well it finally did, it would say it couldn't locate bin file,
so i installed the second controller and now the torch relay stops an inch short of the cut every time. Its not the torch causing the problem, this is a simple x,y homemade rotary table it only cuts tubing. there are no arc ok controls or thc.
my thought there is a problem with the controller so the place i bought it from sent me a new controller. It will be here Tuesday.
the first controller was a novusun nvcm6v2.1 and the second was nvcmv2.1. they told me they were the same but the one without the 6 was a newer version.
I tried to uninstall everything and reinstall but still the same thing. you can see on mach3 that it is shutting the spindle on/off light off and can here the relay shut off at an inch early. I am doing a dry runs no torch so im not wasting tube. Could a firmware problem cause this
https://www.nvcnc.net/nvcm.html
this is my controller.
if anyone knows a decent usb controller for mach3 let me know
thanks
I have been trying everything under the sun to get this thing to work.
I'm not sure where to get the firmware version but i can tell you that I'm on my second controller.
The first one work great until i tripped over the usb cord to the controller and bent the usb port on the controller but it still worked for a couple of weeks but i ordered a second one just to have when it decided to quit.
well it finally did, it would say it couldn't locate bin file,
so i installed the second controller and now the torch relay stops an inch short of the cut every time. Its not the torch causing the problem, this is a simple x,y homemade rotary table it only cuts tubing. there are no arc ok controls or thc.
my thought there is a problem with the controller so the place i bought it from sent me a new controller. It will be here Tuesday.
the first controller was a novusun nvcm6v2.1 and the second was nvcmv2.1. they told me they were the same but the one without the 6 was a newer version.
I tried to uninstall everything and reinstall but still the same thing. you can see on mach3 that it is shutting the spindle on/off light off and can here the relay shut off at an inch early. I am doing a dry runs no torch so im not wasting tube. Could a firmware problem cause this
https://www.nvcnc.net/nvcm.html
this is my controller.
if anyone knows a decent usb controller for mach3 let me know
thanks
Re: torch shutting off early
Sorry to say this but:
USB is a poor choice for a motion control interface at the best of times but even more so with plasma due to the very dirty noise ridden electrical environment. It takes very little noise to affect a 5 volt signal in the USB cable itself which also actes a a very effective antenna to collect said noise.
Consider replacing the controller with an ethernet connected controller. I cant advise you there as I use Linuxcnc and and Mesa ethernet boards.
USB is a poor choice for a motion control interface at the best of times but even more so with plasma due to the very dirty noise ridden electrical environment. It takes very little noise to affect a 5 volt signal in the USB cable itself which also actes a a very effective antenna to collect said noise.
Consider replacing the controller with an ethernet connected controller. I cant advise you there as I use Linuxcnc and and Mesa ethernet boards.
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bittner700
- Posts: 5
- Joined: Tue Sep 07, 2021 3:47 am
Re: torch shutting off early
thanks for the info, I have considered buying a ethernet controller.
I'm green to this and didn't think there would be much difference between usb and ethernet. I may order an ethernet controller.
thanks
I'm green to this and didn't think there would be much difference between usb and ethernet. I may order an ethernet controller.
thanks
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bittner700
- Posts: 5
- Joined: Tue Sep 07, 2021 3:47 am
Re: torch shutting off early
Update, finally got this thing working flawlessly.
I got a hold of my busy friend who is a programmer but doesn't use mach3 to old for him, he runs 9 axis machines but not plasma.
Anyway he looked at the code and ran it single block and found the code was running to fast. By that i mean it was on line 24 and then jump to line 73 then back to line 25 even with look ahead at 0.
So he added pause before the M5 and then the torch stayed on the whole cut.
next problem was it was moving so fast with no THC the M3 would come on and tube wasn't in place yet, added another pause before M3 and left the pierce delay problem solve.
Edited the post processor everything works great.
It now runs great. I hope this might help someone some day
I got a hold of my busy friend who is a programmer but doesn't use mach3 to old for him, he runs 9 axis machines but not plasma.
Anyway he looked at the code and ran it single block and found the code was running to fast. By that i mean it was on line 24 and then jump to line 73 then back to line 25 even with look ahead at 0.
So he added pause before the M5 and then the torch stayed on the whole cut.
next problem was it was moving so fast with no THC the M3 would come on and tube wasn't in place yet, added another pause before M3 and left the pierce delay problem solve.
Edited the post processor everything works great.
It now runs great. I hope this might help someone some day
Re: torch shutting off early
Hi,i had the same priblem with chineese novusun nvem2 controller board.I couldnt solve the problem and also read more bad stuff about these controllers online.So i send it back to seller.got my money back and bought AXBB-E ethernet controller from official website.They made in hungary and you get good support from them on cncdrive forrum.The problem with plasma relay cut off before finish cut was solved.Very happy with new purchace.