Damn. Except for bmps/photos I never use fill. I use the object’s line color to then tell the laser’s CAM software whether the action to perform is a cut or engrave and the appropriate power/speed. So if I want an engraved box it’s got a stroke defined in AI or Corel and no fill but a color (say red) that I then tell the laser software is to be engraved. It then engraves the box. If I tell the software that red is a cut, it will cut that box.
The caveat for this is that engraves have to be enclosed objects so a box has to be 4 sided. I can “stack” engraves where different objects are embedded in another object and engrave either the embedded object or engrave the outside object up to the edges of the embedded object.
My test file has 10 rectangles each with a different stroke color but all without fill. The laser then applies the power/speed settings to each color but engraves the full rectangle for each, not just an outline.
With the GF now I have to change my designs to have fills for engraved objects?