I need help I have an ender 3 v3 se that this year I have got a sonic pad for and am having a lot of trouble with layer lines and because of this many of my prints have not worked at all and I have just stopped midway through because it was so bad. I have tried tightening screws, and I think my belts are fine but do not know how to check. Also use cura for my slicer and have looked and found the turning combing off might help but it does not seem to.