Hello,
I am trying to achieve what you see in the picture (engrave everything but the letters), but if I check the fill option on the outer outline of the logo all I get is an inner engraving of the whole shape and, of course, you can’t see the inner letters. I have read several similar topics, but I can’t reproduce the instructions I read in them, can you give me a hand?
test.lbrn (545.0 KB)
Think of your object like it is made of cookie dough. You need to cut a hole through the dough so the letters will be left unburned.
Select the background “flag”. Set it to later 00 black.
Pres ESC to free up the select too. The select the text. Put those on layer 00 black
Select both the flag and the text, together. Press CTRL+B to open the Boolean tools. Select the options until you get the results desired.
I did this but it is not playing nice in Preview…
Please show us what this means.
Here is a good post explaining how fills are toggled using the shape boundaries.
Ah, I see. There is something broken in your source file. Maybe it’s because it’s lbrn instead of lbrn2 file format? I don’t know.
I took your file, exported the shapes as svg (using LB), opened a new blank workspace, imported the svg again, and it works as it should.
In the original file, it’s really weird. I ungrouped your shapes, replaced the background shape and the text still doesn’t work. But newly added shapes do. I searched for open shapes, used the optimize shapes function, but none of them worked.
That was it! Of all the things I have tried and not come up with this!
Thanks misken 
If I zoom in on the outline of the letters in red in this photo, apparently the letters are not closed.
I did suspect this as well in the beginning, but the letters are closed. LightBurn does not detect any open shapes and if you move a letter out of the outer shape, it fills fine and without issues. It’s strange. But I didn’t check the actual file contents, if the paths are ok.
maybe a boolean subtraction could help, I had this case not long ago and it came from the font (script), I tore my hair out, then when I zoomed in to the maximum many letters were open in an almost invisible way, while lb told me no open shapes. It may be an avenue to explore, after all I’m a beginner! I also think maybe there is a factor for detecting defective thresholds, but I don’t have that knowledge.
what we see as a perfect curve, with a strong zoom appears like a staircase, it only takes one or two unwelded pixels to sow the pan
That (duplicate shapes) will cause problems, for sure!
My LightBurn didn’t find any duplicates. I also ungrouped everything and moved the letters around, there were no duplicates.
But I might have checked with 1.7 instead of 2.0. Could have been a glitch.
Edit: just checked. My 1.7 and 2.0 do not detect any duplicates. But it looks like you are using the Linux version? I have to test with that one as well.
Ungroup then Break Apart.
( I´m on Win10 and Win11 )
