Lightburn 1.7.08 and OMTech LYF20MN(S) not working

Hello, I just got my first laser engraver, the OMTech LYF20MN(S), which people are saying is compatible with LightBurn on the Amazon reviews. I have some questions:

  1. Is the console available to me? I have the console tab, but it doesn’t look like I can interact with it. I saw somewhere about it not being available to ezcad hardware and I assume that’s what I have and why I can’t interact with it.

  2. I have had trouble with actually getting the laser to cut the first project. The framing laser does appear to show the correct pattern, but when I click the Start button it tells me it’s running and then goes back to the Ready state having done nothing.

  3. I have also had issues with framing on the Rotary Chuck attachment I got, but I’m just unfamiliar as to how to change my settings to allow for the framing to work on the chuck and on the correct axis.

If anyone is knowledgeable in this particular situation I would appreciate the help. Thank you.

Without knowing your machine, if you can interact with it in LightBurn, i.e. you can operate it in some way, then it is also “installed” in LightBurn. Depending on the machine’s controller, there will be activity in the console (not if it is a DSP controlled machine).
What profile do you have installed, / , how did you install the machine in LB?, are you in “beginner mode”…
When you are new to Laser/LB, you should not start experimenting with rotary before you know the machine itself and LightBurn.
You may still have enabled the rotary function without it being physically connected (or vice versa?).

You need to create a device for your machine. During creation it will ask for a configuration file. This file should come with your machine and defines the control board and laser source. It also contains lens correction information.

Mine came on the usb memory stick here

LMA22A1095JZ/Ezcad2.14.16/plug/markcfg7

There is a console on grbl type machines, but not on a fiber machine.

It probably ran fine… It’s more than likely the machine is out of focus. On some of these machines with short lenses, the depth of focus is about 0.75mm.


@bernd.dk is more than correct… get it to work, then worry about the rotary.

Good luck

:smiley_cat:

I used the same file as you listed on the USB I received.

Thank you for the video; I followed along and performed the same test on a piece of metal but got no results.

Doesn’t sound like it’s lasing if you can’t find a focus point.

What type of controller and source is your machine?

Are the device settings → ports and laser settings → source configuration, for the correct type and source?

:smiley_cat:

I assume so, but these would have been settings automatically pulled from the markcfg7 file.

It’s not automatically pulled, you have to tell Lightburn when you create the device where to load the markcfg7 file.

Did you do that?

:smiley_cat:

Post the machine settings screenshot. Like to see if anything was imported.
I went through the whole product manual, maybe missed it but I didn’t see laser source, although suggests JPT MOPA as the Q-pulse and Frequency are 1-500, 1-4000 which is typical for a JPT MOPA. Your frequency on the screenshot is 29-62 so something is messed up. If it was me, FIRST I would 100% confirm focus. Start with the lens near the top of the column, run a repeating pattern, 100% power and slowly lower the laser down looking for the laser to burn and make the most amount of noise. Use aluminum or SS for good results. If you already did this…
I would try IPG-YLPM or JPT in laser type, not IPG-YLP. Need to power cycle after making changes to laser type.


Is the screenshot I posted previously the machine settings you mentioned?

I did run the previous test and got no results. This time I tried changing the settings to what you suggested for between 1 and 4000 KHz frequencies. I tried switching between IPG-YLPM and JPT (with power cycling) and still got no results.

I saw someone suggest somewhere that cables might have come loose during shipping. Is that something I should investigate?

Went back through your whole post. Can you explain above a little better?
What console tab? (Screenshot?)
Why can’t you interact with it?
Did the machine work when you first got it?
Did it have ezcad2?
Was there a flash drive with some files?

this one:

Yes, missed that when I read your post first time. It just sounded like the most likely/ easy to check fix.

Possible. It would likely be inside the machine, you should probably contact vendor first to make sure you are not voiding any warranties. The Laser source has it’s own power supply usually, the control bord same. Not being there, if it was a cable sounds like it’s power to the laser as everything else is working.

The console is for grbl or other controllers that accept commands and controls, generally over the USB connection.


You can enable the console, even if it’s connected, it has no one to talk to with a Ruida or a JCZ controller.

Console when connect to the JCZ or the Ruida control board.

:smiley_cat:

Wow. In 3 years of using LB with the Fiber Laser I never enabled that window until now. What commands or macros could you give the BJJCZ board?
:smiling_face_with_sunglasses:

Those windows are set by default to not show, and they are not relevant for the DSP and Galvo control systems. :slight_smile:

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That’s what I was trying to say…

:smiley_cat:

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