Hello, i have ender 3 and I use cura for setting. So I been printing my cutters using satin Pla, and the quality is pretty good especially the outer wall but not so much the inner wall. I tried changing printing speed, and i still dont know how to remove this line, I hope you can help me. I dont know if you can see in the picture but there is a line inside, please can you help me, thank you.