The UM2 worked perfectly for several weeks, and then I had a nozzle clog. It seems to be cleared (atomic and then, ultimately, a hot-end disassembly). The prints are having some gaps, some sticking issues (seem to be solved after going to 70C for bed), and these weird little diagonal staircases coming out of the sides of the prints.
Prints seem to be pretty good (not as good as original) when there are no lifts in the print - big, continuous objects.
Has anyone seen this before?
Thanks in advance!