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tomato-icn 3D printing enthusiast Level: 12 Points: 56
Posts: 26

Posted by
T
tomato-icn

Posted Jun 24, 2013 - 7:29 AM  

Dear community, Cura 13.06.3

All the time I print, I take a look at the TERM tab,

and there are many lines like this:

Error:Line Number is not Last Line Number+1, Last Line: 65110

Error:checksum mismatch, Last Line: 66064

Error:Line Number is not Last Line Number+1, Last Line: 66064

Error:Line Number is not Last Line Number+1, Last Line: 66065

Error:checksum mismatch, Last Line: 66917

Error:Line Number is not Last Line Number+1, Last Line: 66917

Error:No Line Number with checksum, Last Line: 66917

Error:checksum mismatch, Last Line: 67742

Error:Line Number is not Last Line Number+1, Last Line: 67742

Error:Line Number is not Last Line Number+1, Last Line: 67743

Error:Line Number is not Last Line Number+1, Last Line: 67744

Error:No Line Number with checksum, Last Line: 67744

Error:checksum mismatch, Last Line: 68570

Error:Line Number is not Last Line Number+1, Last Line: 68570

Error:checksum mismatch, Last Line: 69358

Error:Line Number is not Last Line Number+1, Last Line: 69358

Error:No Line Number with checksum, Last Line: 69358

Error:checksum mismatch, Last Line: 70182

Error:Line Number is not Last Line Number+1, Last Line: 70182

Error:Line Number is not Last Line Number+1, Last Line: 70183

Error:checksum mismatch, Last Line: 70977

Error:Line Number is not Last Line Number+1, Last Line: 70977

Error:No Line Number with checksum, Last Line: 70977

Error:checksum mismatch, Last Line: 71761

Error:Line Number is not Last Line Number+1, Last Line: 71761

Error:No Line Number with checksum, Last Line: 71761

Error:checksum mismatch, Last Line: 72581

Error:Line Number is not Last Line Number+1, Last Line: 72581

Error:Line Number is not Last Line Number+1, Last Line: 72582

Error:checksum mismatch, Last Line: 73410

Error:No Line Number with checksum, Last Line: 73410

Error:checksum mismatch, Last Line: 74277

Error:No Line Number with checksum, Last Line: 74277

Error:checksum mismatch, Last Line: 74823

Error:No Line Number with checksum, Last Line: 74823

Error:checksum mismatch, Last Line: 75695

Error:Line Number is not Last Line Number+1, Last Line: 75695

Error:Line Number is not Last Line Number+1, Last Line: 75695

Error:Line Number is not Last Line Number+1, Last Line: 75696

Error:Line Number is not Last Line Number+1, Last Line: 75696

Error:Line Number is not Last Line Number+1, Last Line: 75697

Error:checksum mismatch, Last Line: 76558

Error:Line Number is not Last Line Number+1, Last Line: 76558

Error:Line Number is not Last Line Number+1, Last Line: 76559

Error:checksum mismatch, Last Line: 77484

Error:Line Number is not Last Line Number+1, Last Line: 77484

Error:No Line Number with checksum, Last Line: 77484

Error:checksum mismatch, Last Line: 78397

Error:Line Number is not Last Line Number+1, Last Line: 78397

Error:checksum mismatch, Last Line: 79239

Error:Line Number is not Last Line Number+1, Last Line: 79239

Error:Line Number is not Last Line Number+1, Last Line: 79240

Usually the print finishes alright, no problems.

but sometime IT'S STUCK somewhere in the middle stating the ERROR about LINES.

Any ideas please?

17 replies
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I
irongland 3D printing enthusiast Level: 13 Points: 96
Posts: 65
Posted by
I
irongland

Posted Jun 25, 2013 - 8:41 PM

I have run across this type of error code a couple of times in the last month, and similarly to you my print sometimes finishes and sometimes it doesn't.

I thought it was a computer issue, possibly while slicing or when it's feeding the printer the g-code.

As such I thought I had better success at eliminating this issue by cleaning off the computer and removing background processes with spybot and msconfig and such. It seemed to help, but the computer I'm using for printing is from 2001 or so. Still I haven't fixed the problem yet so this might not be of any help

What type of setup are you using? do you have an ulticontroller, if so that would narrow it down. What is your operating system and is the computer outdated or obviously powerful enough?

Either way I'm interested in your response

T
tomato-icn 3D printing enthusiast Level: 12 Points: 56
Posts: 26
Posted by
T
tomato-icn

Posted Jun 26, 2013 - 11:28 AM

HP 625 notebook here, WIN7, not very powerful, but works pretty good,

I don't have an Ulticontroller unfortunately.

I
irongland 3D printing enthusiast Level: 13 Points: 96
Posts: 65
Posted by
I
irongland

Posted Jun 26, 2013 - 7:50 PM

That sounds like it should be plenty powerful, though I have heard some posts mention that laptops can cause trouble due to their power saving options and settings. You could try to chase this avenue by searching for laptop related issues in these forums or the ultimaker google group.

Do you have another computer that you could print a test print with? If not Ill clear some space off my desktop's table and see if I can't run a print and see if these errors pop up on it (probably in a day or two).

T
tomato-icn 3D printing enthusiast Level: 12 Points: 56
Posts: 26
Posted by
T
tomato-icn

Posted Jun 28, 2013 - 11:59 AM

thanks a lot for good advice my friend.

I
irongland 3D printing enthusiast Level: 13 Points: 96
Posts: 65
Posted by
I
irongland

Posted Jun 30, 2013 - 11:06 PM

Hey I tried out the new cura, sadly it didn't help with the weird errors. This might imply that it's not cura or it's slicer, but maybe is more computer issues or (god forbid) hardware? I'd put my money on computer related issues.

Also I made sure the firmware was up to date, so that's not it either.

Ill still try it with another computer.

S
sicyon 3D printing enthusiast Level: 11 Points: 33
Posts: 3
Posted by
S
sicyon

Posted Jul 15, 2013 - 2:57 AM

I've been running 13.04 for about a month now without any kind of issues. I have a dedicated laptop (running windows xp) connected to my ultimaker solely for the purpose of printing. There is literally nothing else going on in the background. It is a fairly powerful machine, I have no doubt it is up to the task.

I upgraded to 13.06.4 today and tried my first print on it, only to have it fail about 2 hours in. It simply stops mid-print, the hot-end remains heated and continues to happily melt the stuff it is contact with.

I switched to the term tab and noticed a ton of these same strange checksum errors that you are seeing. So I loaded my model back into 13.04, sliced it, and it printed flawlessly. I checked the term tab to see what was going on, and there was only 1 instance of the checksum error right at the beginning of the print.

I've started another print to see how it ends up, and it is already throwing hundreds of these checksum errors (but so far continues to print).

I don't think it is a computer related thing, because it only became an issue when I upgraded Cura.

S
sicyon 3D printing enthusiast Level: 11 Points: 33
Posts: 3
Posted by
S
sicyon

Posted Jul 15, 2013 - 3:07 AM

- UPDATE -

The print has just failed after about 43 minutes. The term tab has hundreds of instances of line number errors.

So, both the prints I have tried with 13.06.4 have failed. I'm quite certain it is not a hardware issue, otherwise I would have come across it some time ago.

I'll see if I can run it again tomorrow, and possibly post the contents of the term tab.

I
irongland 3D printing enthusiast Level: 13 Points: 96
Posts: 65
Posted by
I
irongland

Posted Jul 15, 2013 - 6:49 PM

I have moved my printer to another computer and I still get similar errors.

I have been doing some digging though, are your motors hot? Mine were and I read that sometimes the motors will stop if they over heat. I tuned down the amps that go to them (not something I would do without some guidance) and so far I haven't had it stop in mid print. So I not sure that's the issue but Ill make sure to update you if after another 5 prints or so if I run into the same problem.

It's still making those line errors though.

T
tomato-icn 3D printing enthusiast Level: 12 Points: 56
Posts: 26
Posted by
T
tomato-icn

Posted Jul 15, 2013 - 7:06 PM

+1. Confirm this too.

I still get the same ERRORS about LINES.

echo:Unknown command: "

Error:Line Number is not Last Line Number+1, Last Line: 3

echo:Active Extruder: 0

Error:Line Number is not Last Line Number+1, Last Line: 3

Error:Line Number is not Last Line Number+1, Last Line: 5

Error:checksum mismatch, Last Line: 27

Error:No Line Number with checksum, Last Line: 27

Error:checksum mismatch, Last Line: 260

Error:Line Number is not Last Line Number+1, Last Line: 260

Error:No Checksum with line number, Last Line: 470

Error:Line Number is not Last Line Number+1, Last Line: 470

Error:No Line Number with checksum, Last Line: 470

Error:checksum mismatch, Last Line: 855

Error:No Line Number with checksum, Last Line: 855

Error:checksum mismatch, Last Line: 931

Error:Line Number is not Last Line Number+1, Last Line: 931

Error:checksum mismatch, Last Line: 1067

Error:checksum mismatch, Last Line: 1171

Error:Line Number is not Last Line Number+1, Last Line: 1171

Error:checksum mismatch, Last Line: 1233

Error:Line Number is not Last Line Number+1, Last Line: 1233

Error:checksum mismatch, Last Line: 1361

Error:checksum mismatch, Last Line: 1577

Error:Line Number is not Last Line Number+1, Last Line: 1577

Error:checksum mismatch, Last Line: 2409

Error:Line Number is not Last Line Number+1, Last Line: 2409

Error:No Line Number with checksum, Last Line: 2409

Error:checksum mismatch, Last Line: 2636

Error:Line Number is not Last Line Number+1, Last Line: 2636

Error:checksum mismatch, Last Line: 2824

Error:Line Number is not Last Line Number+1, Last Line: 2824

Error:checksum mismatch, Last Line: 3128

Error:Line Number is not Last Line Number+1, Last Line: 3128

Error:checksum mismatch, Last Line: 3653

Error:No Line Number with checksum, Last Line: 3653

Error:checksum mismatch, Last Line: 4601

Error:Line Number is not Last Line Number+1, Last Line: 4601

Error:checksum mismatch, Last Line: 4946

Error:No Line Number with checksum, Last Line: 4946

Error:checksum mismatch, Last Line: 5641

Error:Line Number is not Last Line Number+1, Last Line: 5641

Error:checksum mismatch, Last Line: 6549

Error:Line Number is not Last Line Number+1, Last Line: 6549

Error:checksum mismatch, Last Line: 6927

Error:No Line Number with checksum, Last Line: 6927

Error:checksum mismatch, Last Line: 7618

Error:No Line Number with checksum, Last Line: 7618

Error:checksum mismatch, Last Line: 8577

Error:checksum mismatch, Last Line: 9026

Error:Line Number is not Last Line Number+1, Last Line: 9026

Error:checksum mismatch, Last Line: 10189

Error:No Line Number with checksum, Last Line: 10189

Error:checksum mismatch, Last Line: 10682

Error:Line Number is not Last Line Number+1, Last Line: 1

All the time, sometimes my print finishes well, and sometimes IT STOPS in the middle with HOTEND melting my print, too sad, so sad. RESUME <--> PAUSE helps a little and hotends starts to move a little bit, but hardly finishes another layer and stops again, so the print is ruined again.

Anyone? Thanks a lot.

S
sicyon 3D printing enthusiast Level: 11 Points: 33
Posts: 3
Posted by
S
sicyon

Posted Jul 28, 2013 - 1:39 PM

So I've found a fairly easy workaround. Use Cura to slice, save the gcode, and then download pronterface and use that to actually do the printing. I successfully printed a 4 hour object without having it fail. I'm currently attempting an 8 hour object.

As an added benefit, I've found that pronterface tends to "stutter" less. When I printed direct from Cura I found that it would quite frequently - and randomly - pause during printing for about a second, leaving small little blobs in the print.

I find that the new Cura prints significantly less support material, which is kind of nice. And of course the slice speed is a LOT faster

J
jumpmobile 3D printing enthusiast Level: 15 Points: 233
Posts: 113
Posted by
J
jumpmobile

Posted Oct 27, 2013 - 4:24 PM

I have the same problem. Haven't found anything on the interwebs so i am pretty much stuck.

Sicyons workaround sounds okay, but this isn't how i wanted to use the Printer. If it stops prints like out ouf the blue then it is not a good host for printing.

On the other hand: I am sharing my printer regularly with newbies who will get confused pretty quickly if I start using one Software for printing and the other one for slicing and an SD-card for printing via Ulticontroller and so on.

Also I like Cura very much and would be really glad if this could get fixed soon.

B
brianfarish Getting started Level: 10 Points: 106
Posts: 6
Posted by
B
brianfarish

Posted Jan 25, 2014 - 1:29 PM

I'm running into the same problem except that none of the prints will complete successfully.

Has anyone found the root cause for the checksum problem?

I'm dead in the water and nothing will print correctly. I was able to print three successful objects before this started.

gr5 Moderator Points: 17679
Posts: 10336
Location: Boston, United States Printers: Ultimaker 2, Ultimaker Original, Ultimaker 2 Extended, Ultimaker 2 Go, Ultimaker 3
Posted by
gr5

Posted Jan 25, 2014 - 4:32 PM

Are you printing over USB?

illuminarti You can trust this guy Level: 63 Points: 3546
Posts: 2795
Location: Memphis, United States Printers: Ultimaker 2, Ultimaker Original, Ultimaker Original+, Ultimaker 2 Extended, Ultimaker 2 Go, Ultimaker 2+, Ultimaker 2 Extended+, Ultimaker 3, Ultimaker 3 Extended
Posted by
illuminarti

Posted Jan 25, 2014 - 6:39 PM

The checksum problem isn't the problem - that's just serial comms error correction doin it's thing.

B
brianfarish Getting started Level: 10 Points: 106
Posts: 6
Posted by
B
brianfarish

Posted Jan 25, 2014 - 8:00 PM

gr5: I printed the three successful prints via USB cable... When I started having the problem, one of the things that I tried was generating the g-code to SD card and printing directly from SD card. No joy.

The first four or five solid layers seem to lay down smoothly and then the stuttering begins... If, as illuminarti suggests, the checksum messages are just a product of serial comms error correction then I'm back to thinking that the real issue may be a feed issue... I'll check my filament to see if it is getting scuffed up.

B
brianfarish Getting started Level: 10 Points: 106
Posts: 6
Posted by
B
brianfarish

Posted Jan 26, 2014 - 2:15 AM

Resolution:

For my particular problem, after illuminarti ruled out the comms as being the issue I went back in and checked my filament and sure enough it was still gettting scuffed up, which told me it wasn't feeding cleanly.

I swapped out the temporary tube I had used with the Bowden tube I received a couple of days ago and the prints are coming out just fine now.

Thanks for the help illuminarti.

T
tonycstech 3D printing enthusiast Level: 18 Points: 299
Posts: 178
Posted by
T
tonycstech

Posted Jan 27, 2014 - 5:02 AM

i get same thing both on laptop and desktop.Doesn't bother me, prints are fine

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