Lightburn doesn’t connect to my diode laser. Lightburn doesn’t see my laser macchine. The driver is updated.
Maybe something about win version…
But check if you are using a ferrite core cable. This cable helps a lot in communication.
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Do this
Right click windows menu → Device manager
Expand your PORTS section
Power on laser, plug usb into computer
Do you get a usb shime sound?
Take screenshot of Device manager window
Unplug USB cable
Repeat screenshot. Post both here
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If relevant to your connections, USB-C is also a known issue for coms.
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I use a USB A/B cable
I am using a ferrite core cable.
So your com port is definitly COM3
On lightburn, make sure you create your profile using GRBL (top one)
And in laser pannel you select COM3 as your port.
When you do this, what happens in console window?
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Nothing. It sais:" waiting for the connection…"
Take a full screenshot of your lightburn please
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Very strange
Ctrl Alt Del. Make sure you do not have a stray lightburn.exe stuck
OR restart computer
i am assuming you were able to connect before right?
Does it connect with any other software?
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It doesn’t connect to anyother software. And yes, i was able to connect it before. I have already restarted the PC many times.
Thank you for your availability.
Also… open a command prompt
Start meny - type CMD
Then type
mode
press enter
You should get somehting like this out , can you take a picture?
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Feels to me your COm3 is either the wrong device of has the wrong drivers
Right click on the COM3 → unisntall > unisntall softare checkbox
Then restart computer
Do not install new drivers, let windows 11 do its thing, see if it detects it on its own
if it does not send a new image of the updated device manager
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Done! It detected it by its self.
Fixed the problem all toguehter?
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Unfortunatelly, it didn’t fix the problem.
When this happens it is usually a communication problem, and the cause is usually a damaged connection cable. If you can, change the cable for another (with a ferrite core, of course)
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