Galvo Lens Calibration & Monport MOPA 60W

Hi everyone!

I have a Monport MOPA 60W (YXF60), I’m having trouble configuring Lightburn to remove distortions.

To show you, I made a 100*100mm square with BslAppSimple and another one on Lightburn.

As you can see from my images, the square is perfect with BslAppSimple and distorted with Lightburn.

BslAppSimple is set up by Monport.
Lightburn is configured as described in the Monport user manual.

So I want to use the “Galvo Lens Calibration” tool to correct this, but the result is very strange.

When I trace the contour with the red light, the contour is completely offset from the real engraving. What’s more, the engraving is about 103mm square (instead 150mm).

What’s wrong?

With JCZ boards, the manufacturer figures lens correction out before shipment, along with source type and appropriate delay times.

They put this into a markcfg7 file they ship with the machine. If yours is a BSL, I don’t know how this is transported around, but it must be there somewhere.


I got mine with a single lens.. I now have 4 lenses in total. I have to set my device up with the supplied markcfg7, then create a cor file to correct for my lens. The timings and source information is in the markcfg7 file…

I never used EZCad2, just loaded Lightburn setup the device with the supplied markcfg7 file and it’s great… So somewhere this information appears to be lost or?


Maybe one of the wizards like @gilaraujo can clarify the situation between the two boards and the correct procedure for each when configuring Lightburn.

:smiley_cat:

Hi Jack,

My laser has a parameter card. I used it to set up my Lightburn, but as you can see, it requires finer tuning.


Have you already seen the LightBurn Galvo Lens Correction Guide at https://www.youtube.com/watch?v=x08cRPkyToc

It should guide you through calibration

Yes, I looked at all the guides, and finally managed to get a decent setting after 2 hours of work yesterday morning.
But I think I should be able to get the same (or better) result with the “Galvo Lens Calibration” tool in just 15mn.
I’d like to know what’s going on, if it’s my machine that’s not compatible or if it’s a software bug.

Or maybe I’m doing something wrong (often the problem lies between the chair and the keyboard :laughing: ).

Hello everyone

Doesn’t anyone see what can happen with my Galvo Lens Calibration tool?

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