Commarker B6, 60W MOPA initial set up

Community Laser Talk
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1

Hello,

I’m attempting to set up a Commarker 60W MOPA with Light Burn 2.0.05 on Windows 11, 64 bit. The laser does not appear to be firing at 100%, the intensity does adjust, 20% engraves cardstock and 100% burns a hole in it. lol

I have loaded the COR file provided from Commarker, enabled Q-Pulse Width Setting, enabled Galvo 2 is X axis, and adjusted Max Freq (KHz) 4,000, Min Freq (KHz) 1, per the Commarker instructions.

I’ve been through various settings in the Cut / Layers

provided on the Commarker Material Settings [web page] (https://blog.commarker.com/archives/49730) but have been unable to see results with a single pass on stainless. Increasing the pass count to 10 or 20, there is a lightly visible engraving.

Am I missing something, should this machine be able to engrave carbon, stainless steel in a single pass?

Material Test settings
Material Test settings1924×1021 332 KB

Settings Galvo and Basic
Settings Galvo and Basic1923×1029 377 KB

Settings Ports and Laser
Settings Ports and Laser1920×1029 332 KB

2

You need to show the values set in the materials test. These are pulse lasers, so frequency and q-pulse width are important.

Bring up the edit material settings in the material test gui and give us a screen shot.

:grinning_cat:

3

Hi Jack,

Thank you for the reply.

I have tried various settings,

Power 85%
Speed 200 mm/s
Freq 30 KHz
Q Pulse 200ns
Pass 1

Power 100%
Speed 500 mm/s
Freq 30 KHz
Q pulse 10 ns
Pass 1

All with similar results

I have not adjusted any setting in the Material Test, only on Cut / Layers window.

20260429_132730
20260429_1327301920×2560 448 KB

Cut Settings Editor
Cut Settings Editor1920×1080 365 KB

4

You changed 3 options at a time. Change only one and test then the others, one by one.

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5

Hello, thank you for the response.
I’ll work through them one by one and see what happens.
I received the initial settings from the Commarker blog. It just seems like I’m missing something else.

ComMarker Blog Settings
ComMarker Blog Settings1920×1080 182 KB

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6

The Auto focus was set a little low from the factory, approximately 182mm.

182
1821920×2560 683 KB

Troubleshooting and reading through the manual I discovered the focal length of my machine is supposed to be set to 233mm.
Commarker Manual
Commarker Manual1920×2560 597 KB

After updating the Auto focus on the laser to 233mm the machine seems to be working as advertised.
Display 233
Display 2331920×2560 824 KB

Progress
Progress1920×2560 896 KB

Thank you for the help

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