/diy/ - Do It Yourself

Is the nozzle supposed to touch the print or not? Mine does and loudly rattles when traveling above the supports like RRRAAAACCKK when the tip of the nozzle is scraping on top of the infil or support.
This seem to be independent from the bed level.

Also all my Marvins get the same defects to a different degree
>the lower layers of his ears kinda flow down and slightly distort
>Marvin's ass alway gets curled
When I looked at it it seems like the ass layers are loose and get moved buy the nozzle until there's more layers on top of them, that results in a less tthan perfect ass surface.
>always curled blobs on the upper-left edge of his face

I encounter these defect on my every print, how do I refine them?

My software is Cura, the printer is Ender 2 with a printed fan duct, printing at 190C 40mm/s