Setting a section to *not* fill

[Rick (Technical Evangelist)]

Please post your LightBurn file and I can take a look. Fills are defined by shape boundaries. Here is a post to help with the understanding of how these bounds work as a fill toggle.

How do I invert (negate) a vector engraving?

If you want to invert a vector engraving (Fill layer) you need to add an outline to it. Think about what happens when you scan a circle, compared to the letter ‘O’. The inner ring of the O toggles the fill. If you add another shape (like a square) outside it, it negates the whole thing: [image] And a slightly different example, this time done by changing the outer line around the design to a ‘Line’, instead of leaving it as part of the Fill layer: [image] In the case above, the design alr…

Here I create the same shapes, small one on the lower-left pulled apart for illustration.