Hello Glowforge team,
I’ve run into a pair of the problems seen elsewhere on this board:
Every time I start the Glowforge when the head is parked in the top left corner, it crashes into the left wall. I can hear the stepper motors fight for a half-second, but the app reports “obstruction” quite quickly and does not try again. Each time before powering on I have to manually (and gently) reposition the head to the center of the bed so the camera can detect the Glowforge logo. Once that happens, the head speedily moves to the left wall and stops where it should, then speedily moves to the back of the machine and parks where it should, and everything’s good from there. That said, the Glowforge doesn’t seem to remember or detect where the head is: after power cycling it will bump the left wall if I don’t recenter the head, and that seems to be the case across several restarts.
The right LED strip on the lid seems to be out entirely. This makes the camera images quite dark, though the bed image does properly update in the app.
I’ve done a cursory check of the ribbon cable (intact as far as I can see) and five expected connectors (all flat, clamped, and looking good). The LED strip power connectors at the outside corners of the lid also appear to be connected and intact.
Could this be a bad ribbon cable? Are there any other diagnostics or tricks I can try, like using a multimeter to see if the LED strip is getting any voltage?