How do I cut the outline of a gcode input file image

I make model rockets. I want to use a Sculpfun S9 to cut the rocket fin outlines created in Tinkercad. When I input the gcode file it is a black shape. I just want to cut the outline. How do I do this?

could you share a screen shot of your lightburn, or better yet your LBRN file?

If I understand correctly, just change the layer definition from “Fill” to “Line” in the “Cuts/Layers” window.

Thanks everybody. I got it figured out.

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