How to fill a surface with engraver & penholder?

[Rick (Technical Evangelist)]

These are all OK, and working as expected.

Having an understanding of how LightBurn uses path boundaries to determine the shapes to be filled, is a requirement.

With and without the border.

Reading this post should help.

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…