As you can see in the image below my letters aren't completely filled.
Can anyone help me how to solve this?
I already tried a lot of things:
infill 100%
shell tickness 0.8 -> 1.2
layer height 0.1 -> 0.06
nozzle size 0.4 -> 0.42 and 0.4 -> 0.38 (+ adjust the shell thickness)
but nothing seems to solve this.