I was printing a file yesterday to make some face shields for a local facility, and the weirdest thing happened: at several points during the printing there was a clunk! that shook the whole glowforge, and after a few prints I noticed that my gantry was misaligned on the left (see picture).
The head passed through very similar coordinates without clunking, and I couldn’t find any mechanical obstruction, so I was wondering if it was possible that my file was tickling some bizarre bug in the motion-generating algorithm. The clunks always happened while the GF was cutting the little oval holes along the edge (but not, afaict, the circular one) . I was cutting the masks two-up, and the clunking happened on both copies. (This svg is a modified version of one derived from a dxf of the same shield slightly modified. I don’t know if there’s anything wonky about that.)
Also, I was holding the mylar down with big magnets, but none of them appeared to have moved after a print. So is it something mechanical I just haven’t found, or is there a chance that there’s some truly odd software thing happening?