Why cant i all of a sudden connect my laser to lightburn. Worked well up until now. All it says is waiting for a connection. It works with a different program but not with lightburn which it did up untill now

LightBurn Software Questions
1

Why cant i all of a sudden connect my laser to lightburn. Worked well up until now. All it says is waiting for a connection. It works with a different program but not with lightburn which it did up untill now

2

Is the other program still running? Anything else change?

3

no the other program is shut down. and i restarted my computer a couple times and nothing works. nothing has changed as far as i know. but i havent used it in a couple weeks but that has never been an issue before

4

Did you choose a COM port?

5

it just says waiting for connection, and once right before i closed the program it said connected for 29 milliseconds

6

yes it gives me three to choose from and i tried all three none work

7

would it work to reinstall lightburn?

8

You can try it. That rarely solves anything, but if a file was corrupted that could help.

9

so what do u suggest i try then?

10

I’m at a loss. You said nothing changed, so there’s no reason the board would simply stop working in LightBurn but keep working elsewhere. Try re-installing. We also have a new version coming that includes a fix for some Arduino communication issues, and that might help too.

11

i just uninstalled and reinstalled and it still does the exact thing. when is the next version coming out? i really need to get this working!

12

Is there no way to run a debug or something that you could see what the problem is?

13

It still doesn’t work even after the new install you sent me… all I am getting is a short laser beam when the program starts or when I select it and then it says waiting for connection

14

Do this:

  • Run LightBurn
  • Go to Help > Enable debug logging (at the bottom of the help menu)
  • Choose a COM port
  • Count to 5
  • do that for each of the 3 ports
  • quit

You’ll find a file called LightBurnLog.txt in your Documents folder. Attach that here so I can have a look.

15

LightBurnLog.txt (9.9 KB)

16

COM3 worked, connected, and got a response:

15:16:25.398  D: Name: "COM3"
15:16:25.398  D: Port open succeeded
15:16:25.461  D: EV: 1001 took 18 uS
15:16:25.461  D: "starting"  busy:  false  state:  0
15:16:25.461  D: EV: 1001 took 4 uS
15:16:25.461  D: EV: 1018 took 6 uS
15:16:25.461  D: EV: 1015 took 505 uS
15:16:26.692  D: "Attempting to connect"  busy:  false  state:  1
15:16:26.692  D: "Connecting..."  busy:  false  state:  1
15:16:26.708  D: O: "G0\n"
15:16:26.833  D:   I: "\r\nGrbl 1.1f ['$' for help]\r\n"
15:16:26.974  D: "Connecting..."  busy:  false  state:  1
15:16:27.005  D: O: "G0\n"
15:16:27.005  D:   I: "ok\r\n"
15:16:27.240  D: "Connecting..."  busy:  false  state:  1
15:16:27.240  D: issuing buffer check
15:16:27.240  D: "Waiting for response..."  busy:  true  state:  5
15:16:27.271  D: O: "$I\n"
15:16:27.271  D:   I: "[VER:1.1f.20170131:]\r\n[OPT:V,15,"
15:16:27.286  D:   I: "128]\r\nok\r\n"

If you use COM3, it doesn’t work?

17

Tried it now and it works. Thank you i appreciate that. after the update i actually didn’t check if i can move the laser, it didn’t pop up under devices so i assumed it didn’t connect properly again. Sorry for that! Works perfect now. Thanks for the quick response and support!

18

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