I suddenly have a print quality issue, only with the top layers

[jaerandles 0]

I am not sure what has happened, but all of a sudden my prints have messed up tops.  I am printing in the same PLA that I always used, and I am using a CR-10 with no mods. [/media]  I am just stuck now on what to do. the first pic is with the 2mm top setting I have always used, and the second is with a 5mm top setting?????

Edited November 10, 2017 by Guest

[gr5 1,933]

I see 4 issues. which issue do you refer to?

The "hole" issue in the top part is likely due to a recent change in Cura 3. There is a ton of discussion in github. The fix for now is to go back to Cura 2.7:

https://github.com/ultimaker/cura/issues/2665

If it's one of the other issues maybe circle which issue is bothering you or describe it - maybe:

infill overextrusion bordering shell

random lines crossing top surface (e.g. 3 of them on lower pic)

when print stops it leaves a bump and thread