I’m running the Galvo Lens Correction tool in v1.7.03 with a ComMarker Omni 1 UV and the 150mm lens. No matter what I enter into the working size, the output grid to measure stays the same size and is larger than the capabilities of the laser’s lens to output. My grid corners are cut off and I have no way to measure them to continue the test.
Working area is determined by lens length. Ensure it’s focused before attempting the lens correction.
It was focused exactly.
I don’t have a UV, but I do have a fiber and you can’t really set the work area, as it’s figured out by the software.
I think we’ll have to call for the bigger guns here. At this point, I don’t know what else to suggest…
Maybe @Rick can assist or someone else from Lightburn that has experience with these.
Good luck
Was there any resolution to this? I am having the same issue with an OMTech 60W MOPA (JCZ). The calibration bounds are always at max of the galvo range regardless of workspace settings.
Try this:
Set the scale to 50 or 60 percent, this works for me.
Also, IIRC, seems like the preview didn’t scale like the output did last time I ran this, went ahead and ran it anyway worked fine.
Changing either of those settings does not change the framing on my galvo. I shrunk both down to 50mm/10mm just to test and my galvo is still scanning at max size possible (about 330mm with clipped corners when calibrating a 300mm lens). I had to revert back to manual calibration using the device settings menu. Hopefully this will get fixed in the future.
Strange. You say it doesn’t change the “Framing” but I assume you also mean when you actually try to burn the square.
I haven’t tried it with the 1.7.03 but it worked with all my lenses when it first came out in 1.6. Something I would be curious about, if you reverted to one of the 1.6 versions if it would work. I will try with the 7.3 ver next time I am down there.
Yes, it is both the Frame (preview) and the actual laser firing. I almost burned a line in my worktable because the extents are larger than my laser bed!
Here are some photos to show what I see, with what should be a very small 70mm square for testing, you can see the frame is at the max of the galvo range:
You said 150mm lens but you show 80 in your setup. Try 150 if that is your lens (150 x 150 )and then 75 or less for box output? It’s OK if your box is way bigger, after calibrating it should be close, then back on the settings screen you can fine tune scale.
It is a 300mm lens, but either way, nothing changes the framing, it is always max. I tried variations of the workspace size and calibration square all the way from 290mm down to what I show in the photo…. Nothing changes it from maxing out the galvo range. BTW, calibration the old fashioned way worked fine, it is just tedious.
150 or 300?
If you are indeed using a 300 lens, you put 300 in the top box, and 150 or less in the bottom box?
Before you did calibration, first did you do the focus exercise on something of known thickness?
What was your procedure for that?
Then, I assume, you lowered the laser that thickness to achieve focus at the table level where your photo above was taken?
What are you using to burn the test pattern on?
You’re addressing two people, appears same issue, but different lenses … The threads author is @Samcraft, so I’d stick with what he advised for this thread.
@jack_king welcome to the forum… We can only solve them one at a time … so hang in there, the solution of @Samcraft problem might also be your solution.
Thanks, Jack
Should have caught that when I quoted them both in the same response!
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