The results with my UM2 have been really good and I am printing 100% solid ABS however my final layers end up globular and melted. This is a problem as these layers often have detail. I don't know which route to take to solve the issue , can anyone help?
My settings are Speed 20mm/s, Layer height 0.1mm, enable retraction, no fans, Min layer time 10 sec.
I hope the following pictures help.