I reached out to Glowforge on their support forum about the seams that are introduced when engraving the tiled version of the image. I performed a couple more tests and while I still think the interpolation issues are introducing the seams, I found a way to make the Glowforge behave a little differently. The seams don’t entirely go away, but do seem to be less noticeable when a new Wrap Tiles In SVG checkbox is checked in my tiling app.
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