Sunlu nozzle clogging
Hello, I havr mostly Sunlu PETG filament, on MK4S I don't have problem, but on Core One, my nozzle got clogged during the last few prints or somehow skip the layer?... I have High Flow ObXidian nozzle 0,4 mm and textured print sheet.
For last print, I had nozzle 245 and bed 85 (first layer 250, 90), using profile 0,2 mm structural and gyroid infill...
What temperature you have set for Sunlu?
(Now I'm trying to dry the filament, I can't think of what the problem could be...)
RE: Sunlu nozzle clogging
My experience with the HF Obxidian nozzle (on 4S and now converted to Core One) is that it wants lower nozzle temps. I don’t know how good the Sunlu presets are overall, since I’ve only seen them in the last couple days, but the 230/220 nozzle temps for Sunlu PLA have produced garbage prints. 210/200 look flawless. I don’t print much PETG from Sunlu, other than their PETG-CF, but Prusament, Jessie, and Polymaker PETG have wanted similar temp reductions. Layer adhesion doesn’t appear to be suffering at all, probably due to the increased print speed getting the next layer down sooner.
Print a temp tower and try printing with the coolest temp that looks good.
RE: Sunlu nozzle clogging
I agree that hardened nozzles require lower temperatures to what are set in the profile due to better thermal conductivity than brass. Best way to determine this is to either print a temp tower or try a nozzle temp that's about 10 degrees lower than the profile temp. I've found this particularly true of the Diamondback nozzles.