I am having a problems when I try to start a burn. When I press start the laser runs for 2 seconds and shuts off. If I use LaserGRBL I don’t have this problem. This all started after i updated to 1.1.00 ???

Can you upload your LightBurn file in a reply to this thread? I’d like to try to see if it’s a settings issue or a command issue.

I have a FoxAlien Reizer 20 watt Mega 800x400. Attached is the Lightburn file I am using and the laser stops after about 2-4 sec. Das Hooah Back.lbrn (1.4 MB)

My suspicion is that your preferences file took a knock when you were updating. 5000mm/min could be a little bit fast. 100% power could shorten the life of the diode. Can you tell me what power / speeds you’re running at in laserGRBL? Is there an error message in the Console window when the job …

on LaserGRBL I use the same setting. I am burning on paint coated aluminum business cards so the speed works out great. No message code, it just stops

[image] joesunderwater: No message code, it just stops interesting… On the Console window there’s a ‘Show all’ switch on the right hand side. Click that so it’s green and try again. I want to see if the send data is garbled or if something else is going on. Is LaserGRBL shut down while yo…

I attached screen shots of my problem. still shuts off after 2 to 4 seconds. The last screen shows my $$. [image] [image] [image] [image]

I’m going to go out on a limb and guess that your device is setup as iLaser rather than GRBL. Please check by clicking the Devices button in the Laser window. If it shows as iLaser select the laser, click edit, switch the device type to GRBL and then next until the dialogue is complete. Retest.

[image] berainlb: I’m going to go out on a limb and guess that your device is setup as iLaser rather than GRBL. I think PY is right. The M101 command in line zero isn’t supported by GRBL 1.1h. [unsupported command on or near line zero] [M101 on line zero - unsupported command on or near li…

I am getting this message upon welcome. G0 G0 G0 G0 G0 G0 G0 Grbl 1.1f [’$’ for help] ok $I [VER:1.1f.V2.1:] [OPT:VMHL,15,512] Target buffer size found ok Homing $H ok

This is what is showing up at the end of another errored stop. [image]

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