Hello. I have been putting the new SM2.0 to the test lately, and I have been printing in the black PLA they sent, and have also tried some black PETG (Polymaker Polymax).
I’m having strange results, however. It seems that the surface of the print that is in contact with the bed has a white-grey color that is extremely unpleasant; an unsightly blemish on an otherwise good print. What is happening here? I’ve made sure my bed is completely clean. I’ve printed with the bed at temps from 50 - 90 degrees… it doesn’t seem to matter. If the bottom of the print is the side that is in contact with the bed, then no big deal, but often times this is not the case, and it puts me in a terrible pickle, as many of my models will be unusable. This never happened to me on the SM1…
Any ideas on what is going on here? What I can do to alleviate it? You can see in the following images what I mean. The top side is beautiful, the bottom side is very much UN-beautiful: