Lightburn 0.9.16 - ubuntu 18 Ortur LM 2

[caviar44 (Prou)]

I have got a problem with LightBurn 0.9.16 under ubuntu 18.

LightBurn is working well but I was not able to communicate with My Ortur Laser Master 2

I added manualy a new printer.
I saw that the Port is recognized and named
but I was not able to communicate with laser printer,

On the console displays :
"Waiting connexion "
"Waiting connexion "
"Waiting connexion "

lsusb :
<Bus 003 Device 004: ID 0483:5740 STMicroelectronics STM32F407>

demsg :
[ 2653.154680] usb 3-2: USB disconnect, device number 3
[ 2663.260130] usb 3-2: new full-speed USB device number 4 using xhci_hcd
[ 2663.409237] usb 3-2: New USB device found, idVendor=0483, idProduct=5740
[ 2663.409241] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2663.409243] usb 3-2: Product: STM32F103C8T6
[ 2663.409244] usb 3-2: Manufacturer: tomeko net
[ 2663.409246] usb 3-2: SerialNumber: 5D7A154D36

What should I do ?
Is there special driver to install for orthur Laser Master 2 ?

[adammhaile (Adam Haile)]

Shouldn’t need any special drivers that I know of, but it might be a permissions issue.
Have you been able to connect to the machine through any other software or is this your first attempt?

Can you run the following commands and send the results back?

groups
This should output a list of groups your user is in, dialout needs to be one of them

ls -al /dev/tty*
Checking the permissions on serial devices. Please make sure the laser is connected when you run this.

[caviar44 (Prou)]

You right, it was a permission issue
I finally solve the problem by adding a new file rule for my LM2 usb device to /etc/udev/rules.d

I get the USB vendorId and productID with sudo dmesg
I did sudo nano 99-usb-serial.rules

with following data :
SUBSYSTEM==“tty”, ATTRS{idVendor}==“0483”, ATTRS{idProduct}==“5740”, GROUP=“users”, MODE="0666"

then reload rules :
 sudo udevadm trigger

then I relaunched lightburn.
I was able to burn a design and get good result.
thanks for your help

[nkunchavaram (Naveen Kunchavaram)]

HI,
I tried exactly the same steps but I still dont get it to work.

**SUBSYSTEM==“tty”, ATTRS{idVendor}==“0483”, ATTRS{idProduct}==“5740”, GROUP=“*users*”, MODE="0666"**

Vendor ID and Product ID are same for me too, May be I should have a different value for group?
I tried my username specifically from **groups** output. But still no luck.

Rather I found this if it provides any further info.
cdc_acm 1-10:1.0: failed to set dtr/rts

I updated the 99-usb-serial.rules to add
**ACTION=="add", KERNEL=="ttyACM[0-9]*", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="5740", MODE="0666"**

Now it shows that Laser is ready, Port is opened but waiting for response.
Port opened, waiting for response.

After a while, Lightburn is getting unresponsive…

Any help will be much appreciated.

[LightBurn (Oz)]

Someone else has posted instructions online that might help:

Connecting USB lasers to linux | Details | Hackaday.io