Hi all,
since a few days I´ve got problems with the “Start” and “Stop” button. It only works exactly one time. When the job is finished I cannot use it a second time. Then I just can restart my computer (restart lightburn and/or reconnecting usb not working) or use the “Start here” button in Preview-Mode.
Everyone else facing this issue?
Thanks,
Thomas
In Lightburn, with the laser off, create a box any size, like 50mm x 50mm, and select it. Set the power to 5% and the speed to 1000mm/min.
Open the Console window and click the Show all button.
Power up the laser and Home or set the Origin like you normally would.
Click the Run button.
When it finishes, click the Run button again.
You will be able to scroll up nd down to see everything the controller and Lightburn said to each other.
Now copy the everything in the Console window and paste it here.
Thanks for the fast reply.
Suprisingly it was working today with this little test. I tested a few times.
Waiting for connection…
Project loaded in 1 milliseconds
Waiting for connection…
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Waiting for connection…
�-�ok
ok
[VER:1.1h.20230501:]
[OPT:VNZHDLI,254,2048]
Target buffer size found
ok
ok
<Idle|MPos:0.000,0.000,0.000|FS:0,0|WCO:0.000,0.000,0.000>
ok
Starting stream
Layer Labels
[MSG:Pgm End]
Stream completed in 0:14
<Idle|MPos:0.000,0.000,0.000|FS:0,0|WCO:0.000,0.000,0.000>
ok
Starting stream
Layer Labels
[MSG:Pgm End]
Stream completed in 0:14
<Idle|MPos:0.000,0.000,0.000|FS:0,0|WCO:0.000,0.000,0.000>
ok
Starting stream
Layer Labels
[MSG:Pgm End]
Stream completed in 0:14
Will test later again with “normal” laser cutting stuff. I dont undertand why it is working now 
I will take blind dumb luck over skill any day.
This “little test” eliminated a lot of possible causes. Now we see what happens next…
I lasered some more stuff today and it worked now without problems. Really confusing. Will do more the next days and see if it happens again.
Probably won’t. You have a procedure that works for you. You just have to keep doing it the same. Congrats!!!
Hopefully 
Thanks for your help.
Yeah, I do a lot of that hopefully too.
@MikeyH Unfortunately I got this error again today. This time its not working after I did the stuff you mentioned
There is also no log entry wenn pressing “Run”.
Waiting for connection...
Project loaded in 11 milliseconds
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Waiting for connection...
)��ok
ok
[VER:1.1h.20230501:]
[OPT:VNZHDLI,254,2048]
Target buffer size found
ok
ok
Starting stream
Autofocus in progress
Stream completed in 0:23
Try this again… I am guessing you mean it has the same “won’t run on second click” issue.
I did exactly this a few times, but did not work and the post above contains the log from these trys.
Yes, cant click a second time or even stop if I startet from the preview.
Are you trying to Stop and Start in the Laser window with the Preview window open? If you use the Start Here in Preview, the window will keep focus until you close it…
If this is not what you are doing, please describe what you do step-by-step until it hangs.
No thats not what I am doing. That clear, that this is not working
It just stopped working to click Start from beginning. If I start Lightburn (closed before), do the steps you mentioned before, I cant start the job. There is also no Log entry when pressing “Start”.
I´m not doing anything special. Like I said in my first post, its very strange that it works again one time, when I restart my computer (laser on/off, usb in/out, lightburn close/open, etc. does not work).
Also reinstalling Lightburn with drivers not working (saw that in another thread).
The info reported back by your controller is not very helpful. Does the project complete when it does run? Is this limited to one project or all projects?
Have you tried other software, like LaserGRBL? I am wondering if you can do a restart in that package.
It does affect all projects. No matter if I open a existing one or create a new one from scratch.
When it is running the first time, it completes.
Did not try LaserGRBL,but can do later.
To be honest, it sounds like the controller is not sending the completion information to Lightburn. I have read some postings where the controller firmware gets corrupted.
Did not test with LaserGRBL up to now.
Dont think its the controller not sending because today it happened that it also not worked the first time (I did a lot of editing paths etc. at first).
Only two things will cause a Run fail on first try:
I think its the second point, but I really dont know how to figure out whats going wrong here. Maybe I also try to reach out to the product support (laser).
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