Issue with Lightburn, but works on LaserGRBL

Hello, I’m a newbie, I have been using Lightburn for a couple of weeks, everything was working just fine. This morning though when I tell it to frame the motor turns on like its moving but its stuck. I have to click stop on the controllers to turn it off. My image is inbounds, I even decreased the size of it and physically moved my laser to the center of the machine, still same results. But, I am able to run LaserGRBL and everything runs fine. I’m stuck not sure what happened. I have only had the laser for a few months. All help is appreciated, Thank You.

This is what is on my console
Waiting for connection…
ok
[VER:1.1f.20170801:]
[OPT:VI,15,128]
Target buffer size found
ok
Homing
error:5
Homing cycle is not enabled in your Grbl settings.
Project loaded in 2 milliseconds
<Idle|MPos:5.088,0.000,0.812|FS:0,0|WCO:0.000,0.000,0.000>
ok
Starting stream
Stream completed in 0:00
ALARM:3
Reset while in motion. Grbl cannot guarantee position. Lost steps are likely. Re-homing is highly recommended.
Grbl 1.1f [’$’ for help]
[MSG:’$H’|’$X’ to unlock]
[MSG:Caution: Unlocked]
ok

You may have inadvertently introduced an offset into your GRBL settings. Did you push the globe icon in LaserGRBL?

Run these commands one at a time in Console and copy/paste the content of the output window here:

$I
$$
$#
?

I am am not sure if I did or not, I did input those values and this is what it gave me in the Console.

Waiting for connection…
ok
[VER:1.1f.20170801:]
[OPT:VI,15,128]
Target buffer size found
ok
Homing
error:5
Homing cycle is not enabled in your Grbl settings.
$I
[VER:1.1f.20170801:]
[OPT:VI,15,128]
Target buffer size found
ok
$$
$0=10
$1=25
$2=0
$3=0
$4=0
$5=0
$6=0
$10=1
$11=0.010
$12=0.000
$13=0
$20=0
$21=0
$22=0
$23=0
$24=25.000
$25=500.000
$26=250
$27=1.000
$30=1000
$31=0
$32=1
$100=80.000
$101=80.000
$102=250.000
$110=6000.000
$111=6000.000
$112=1000.000
$120=1000.000
$121=1000.000
$122=10.000
$130=410.000
$131=400.000
$132=200.000
ok
$#
[G54:0.000,0.000,0.000]
[G55:0.000,0.000,0.000]
[G56:0.000,0.000,0.000]
[G57:0.000,0.000,0.000]
[G58:0.000,0.000,0.000]
[G59:0.000,0.000,0.000]
[G28:0.000,0.000,0.000]
[G30:0.000,0.000,0.000]
[G92:0.000,0.000,0.000]
[TLO:0.000]
[PRB:0.000,0.000,0.000:0]
ok
?
<Idle|MPos:0.000,0.000,0.000|FS:0,0>
ok

I don’t see any offset configured. It seems you have auto-home on startup configured in Device Settings but your laser is not configured to home.

Disable auto-home on startup in Edit->Device Settings.

Can you see if that addresses your issue? It’s unclear what else is wrong. If this doesn’t resolve the issue can you describe in as much detail as possible the circumstances when you experience the issue?

Lightburn video - Apologize for the poor camera angle.

I added a video link, thought it might be easier to show then explain. I did disable the auto-home on startup. I’ve tried using a saved file and even imported a new file. I even reinstalled Lightburn. I have no idea what happened, I don’t recall clicking anything, but I could have, don’t know. Again I appreciate all the help, Thank You. I really enjoy using Lightburn over LaserGRBL.

Thanks for the video. It’s helpful.

I think we need to start from the beginning as your situation is kind of unique and I’m unfamiliar with your particular laser model.

Can you check these items:

  1. Turn off the laser, move the head of the laser to the center of the bed, then turn on.
  2. In LightBurn, hit the “Get Position” button in Move window. What is the reported coordinate?
  3. In Move window, use the jogging controls. Do they operate in the direction you expect? Left is left, right is right, up is up, down is down?
  4. Jog the laser head near the top left corner (don’t crash into the frame). Enter ? into the Console window. Copy the results of that here.
  5. Repeat for top right.
  6. Repeat for bottom right.
  7. Repeat for bottom left

Please also attach a screenshot of your Edit->Device Settings window.

I followed the steps and in the Move Window, the coordinates state X0 Y0 Z0 U0
When I try to use the jogging controls the motor sounds like it turns on, but it will not move like its jammed. It only stops when I click the stop button, same as when I click Frame or Start. So I am not able to do steps 4-7 since it will not move.

Waiting for connection…
error:7
EEPROM read failed. Reset and restored to default values.
$0=10
$1=25
$2=0
$3=0
$4=0
$5=0
$6=0
$10=1
$11=0.010
$12=0.002
$13=0
$20=0
$21=0
$22=0
$23=0
$24=25.000
$25=500.000
$26=250
$27=1.000
$30=1000
$31=0
$32=1
$100=80.000
$101=80.000
$102=250.000
$110=6000.000
$111=6000.000
$112=1000.000
$120=1000.000
$121=1000.000
$122=10.000
$130=410.000
$131=400.000
$132=200.000
Grbl 1.1f [’$’ for help]
ok
[VER:1.1f.20170801:]
[OPT:VI,15,128]
Target buffer size found
ok
<Idle|MPos:0.000,0.000,0.000|FS:0,0|WCO:0.000,0.000,0.000>
ok
<Idle|MPos:0.000,0.000,0.000|FS:0,0|Ov:100,100,100|A:F>
ok
Starting stream
Stream completed in 0:03
ALARM:3
Reset while in motion. Grbl cannot guarantee position. Lost steps are likely. Re-homing is highly recommended.
[MSG:Pgm End]
ok
Grbl 1.1f [’$’ for help]
[MSG:’$H’|’$X’ to unlock]
[MSG:Caution: Unlocked]
ok
?
<Idle|MPos:-1.313,0.000,0.000|FS:0,0|WCO:0.000,0.000,0.000>
ok

That’s very strange. I don’t see anything obvious in your settings or otherwise that would cause this.

It’s asking as if you’ve asked it to home but cannot due to something.

Can you verity that you’ve setup the device as GRBL? Click the Device button in the Laser window. It will list all devices by type and name.

The fact that this works in LaserGRBL is what makes this extra puzzling but interesting.


In the device list it does come us as GRBL,

Your frame speed in LaserGRBL is quite low (1000 mm/min) and the default in LightBurn is higher than that, so you could try reducing that speed in LightBurn to see if that helps. Change the Speed value in the ‘Move’ window to 1000 mm/min (or 17 mm/sec).

2 Likes

That did it! Thank You Very Much! I knew it had to have been something little, still learning all these settings. Again, Thank You! :grinning:

Wow. Didn’t see that coming. Especially if it worked earlier. Glad you got it going.

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.