Thanks for the recension. I'll try to print Polymaker PC too, and I've try with your same setting, but the extrudion temp is 270 and bed 88, the retraction is 30/0.8
I like this filament, but the surface over the support is too rought. Now I want try the trasparent PC, hope doing well.
How you resolve the warping problem??? :( I have a big part to print, but every time I try, it's start warping. The bed is calibrated very well and I have a box enclosure.
I was using CoPA as well after some failures with PC-max. I found the bed temp had to be high even with the lid on it so the ambient temp inside the printer was high, then I had no cracking issues. It had an amazing gloss look to it when I did get it right though. CoPA printed awesome with standard z-abs settings, after printing with maybe 6 rolls of it I couldn’t get it to print so it wasn’t stringy. I know it doesn’t like humidity, we have plenty of it in Florida.