It seems I’m having some hardware issues with my chinese 80w.
Started out with no problems, then scanning offset went to .25, and now it’s up to .6.
But there’s still some line issues.
I’ve tried belt tension, calibration in RD works, all sorts of things.
I’ve included some pics of the issue.
I think the first two speak for themselves.
The last one is a 200x10mm rectangle