I am working myself into the world of laser engraving. I bought myself a Falcon2 from Creality and now I am learning to work with LightBurn (yet with test version).
Exporting GCode from LightBurn to a flash drive and operating the machine as stand-alone device does work well. But I want to go the next step and operate the machine from LightBurn (basically for quicker positioning).
Now I stuck in a problem: The machine seem to not correctly except commands.
Situation 1:
Power-Up the Falcon2
Connect USB
Start Lightburn
… then LightBurn waits forever for connection
Situation 2:
Start LightBurn
Connect USB
Start Falcon2
… then there is some information in the LightBurn Console:
Auf Verbindung warten...
Port failed to open - already in use?
[OK]system start-up CV50-MASTER-Release V3.0.4 20231113-0956
[OK] ILmp_app_init OK
[OK] gas_init OK
usb connect succeed
[OK] ILmp Link connect ok
[MSG:Using cpu_map...esp32-s3]
Grbl 1.1f ['$' for help]
ok
[VER:1.1f.20220810:]
[OPT:VHL,127,65536]
Target buffer size found
[software versions: CV50-MASTER-Release V3.0.4 20231113-0956]
ok
inquire_info->power:40W ,CV50-LASER-40W-Release V3.0.4 20231108-1426
So, it seems that there is generally a connection. After this I can “Home” the Falcon2 controlled from Lightburn. So, connection in both directions do work.
But after homing, no other command is accepted.
I cannot “Home” again, I cannot write “$$” in the console, I cannot do move commands. It seems that something stopped working. It could be an issue with the Falcon2 or with LightBurn - not sure how to find out.
Does anyone has a hint how I can do more investigations of what is going on?
Thanks
Thomas, first thing is I had this issue. If you run GRBL and then open Lightburn it seems that GRBL doesn’t let go of the USB port and do housekeeping like it should. Boot and load LB first and see if that makes a difference. Did you load the USB drivers Lightburn needs? Also, check your Device Manager settings and make sure that the box on the Power Management screen isn’t checked to let the computer power down USB hubs.
Check each HUB in your device Manager list and if it has a Power Management tab uncheck the box that says allow the computer to power down this device to save power. Hope some of this helps.
thank you for your ideas. Actually I am running on a linux system, so I do not have this device manager. But I capture your thoughts and checked power saving settings in the BIOS (unfortunately without success).
I also contacted a friend with more linux experience then me. He recommended “dmesg -wH” to monitor what is happening:
What I see is that the device gets several reconnects.
The log, when engaging the homing function in LightBurn, looks similar:
The serial number “123456” is suspicious, but I guess these reconnects are the issue.
I even tried several USB cables - all with the same behavior.
Looks to me that this is a clear device issue that cannot be solved with LightBurn.
I’ll try to contact the vendor.
Auf Verbindung warten...
Auf Verbindung warten...
Port failed to open - already in use?
usb connect succeed
[OK]system start-up CV50-MASTER-Release V3.0.4 20231113-0956
[OK] ILmp_app_init OK
[OK] gas_init OK
[OK] ILmp Link connect ok
[MSG:Using cpu_map...esp32-s3]
Grbl 1.1f ['$' for help]
ok
[VER:1.1f.20220810:]
[OPT:VHL,127,65536]
Target buffer size found
[software versions: CV50-MASTER-Release V3.0.4 20231113-0956]
ok
inquire_info->power:40W ,CV50-LASER-40W-Release V3.0.4 20231108-1426
$$
GO X10
There is no reaction to any of the commands.
P.S. I don’t have the machine at home and a was traveling last weeks. So I took a while, sorry.
