So i recently got the lithophane kit and the 0.2 nozzle. When i started my first print everything seemed fine untill it started purging filament. at first it just seemed a little much and the purge spagetti climed up to the nozzle but on some purges it just didnt want to stop. It just kept extruding and extruding even when there was a solid plastic blob under it it just went on. If i wouldnt have poked it out of the way it would have covered the whole nozzle. I have done exactly as the bambu lithophane instructions have said.