Cura not printing parts of model?

[IDKrandomYT 0]

How can I get Cura to print the grayed area? Print thin walls is on and horizontal expansion will mess with the piece as I need to fit other pieces into this print. (I'm on version 4.8.0) 

[GregValiant 1,112]

I think it would depend on the inner geometry of the model.

With the model loaded in Cura and the settings the way you like, use the "File | Save Project" command and post the 3mf file here.  Without a project file it is near impossible to troubleshoot.

[IDKrandomYT 0]

Here is the file.TopWithBrim.3mf

[GregValiant 1,112]

I downloaded it but there is something wrong with the file and I can't open it in Cura or MS 3D Builder.

[IDKrandomYT 0]

Huh, weird sorry. Try downloading this? https://drive.google.com/file/d/1TCdfmhIsUosXutFgSfrwjG6YshhJDWDr/view?usp=sharing

[GregValiant 1,112]

They are knife edges.  There isn't any way to slice those features out to the tip because their thickness approaches zero.  That's one of the limitations of FDM manufacturing.

This is a slice with a .15 nozzle at 0.1 line width and .10 layer height.  You can see that it still can't get out to the tips.

[IDKrandomYT 0]

Ah ok, I don't know why I didn't realize that, thank you!