During a class this week some poor cutting results where observed. I took a further look today and it may be related to some Z-axis wobble I observed, particularly with the right bottom Z-track wheel. The machine could also use some tune-up and cleaning work.
I don’t have time to work on this right now but perhaps another member or two would like to give it a go?
Used a can of compressed air to blow it out. Probably needs q-tips to clean the stubborn stuff. Tightened the bottom Z wheels. Just need someone to try it.