Glowforge Automatically Adding Stroke?

[tim1724]

Here’s a “fixed” version of the file made in Affinity Designer:

And here’s how it looks in the GFUI:

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I fixed it by reversing a bunch of the paths so that the non-zero rule produces the right results. Here’s what I did:

1. Select the path:
   

   

2. Geometry->Divide
   

   

3. Deselect the curve representing the background shape:
   

   

4. Choose the Node tool and then click on Reverse Curves:
   

5. Add the background curve back to the selection:
   

   

6. Geometry->Subtract
   

   

7. Set fill mode to non-zero just to check that it looks ok using that rule (because Glowforge uses it no matter what):
   

   

8. Looks good!