Cura does not slice correctly

[mrlazzy 0]

hi , i have stl file that i want to print but after slicing in cura the model have some issues there is unnecessary gaps in the model. Worth to mention i have previously succeed to slice and print this model so maybe i need to tweak some settings ?

Shelf X Bracket.stl

[Slashee_the_Cow 457]

Your model is bad - it's missing interior faces inside the curved sections, and has a lot of extraneous faces elsewhere:

(gotta zoom in and pan a bit to find it)

 

On Windows, Microsoft's 3D Builder app is actually really great at fixing things like this. You might also be able to do it something like MeshLab. Other platforms, not so sure.

 

But here's one I fixed in 3D Builder.

Shelf X Bracket fixed.stl