I’ve seen this issue a few times now, with different drawings. When engraving a detailed vector in an SVG, sometimes the Glowforge will decide to add extra lines that aren’t in the original drawing, or will “cut the corner” of an existing curve and turn one of the curved segments into a straight line.
The on-screen preview of the engrave looks fine in these cases (both before and after running the job), but the actual engrave has errors.
Here’s an example from last night (engraved at 450 LPI):
A closer look:
My complaint isn’t the slight misalignment between preview and cut; my unit is actually pretty close. It’s those extra horizontal lines that started appearing half-way through an otherwise excellent engrave.
I double-checked the source SVG, and I couldn’t find anything wrong with it. It is fairly detailed, since I converted the strokes to paths in order to capture the varying line widths. It has about 5700 nodes, but I’ve engrave much more complex vectors without issue on my Glowforge before.
Here’s the SVG: UH-60 profile.zip (52.1 KB)
As a workaround, my thought was to convert it to an embedded 450 dpi bitmap, then engrave that instead. But in general, I shouldn’t have to do that, right?
Thanks in advance for any suggestions!