Missing middle section when slicing part on its side?

[lyrana 0]

Has anyone has this happen before where the mesh looks fine, the CAD model looks fine, but then when slicing an entire section is missing!? What's odd is that when I slice him standing up the middle section is there--but still not part of the neck. Not sure what's going on!

 

 

samuraiBoyRemeshed.stl

[GregValiant 891]

When the model orientation on the build plate affects the slicing the problem is often in the model.  The Cura warning states that the model isn't watertight and in X-ray view there are issues with the hat and neck as well as other places.

 

Here is an STL file repaired with MS 3D Builder.  If you print this you might have to do something with the hat.  The interior is hollow and so there is no infill to support the upper cone.

 

I might be inclined to print the lower portion without the hat (use a support blocker configured as a cutting mesh) and then print the hat separately and glue it on.  The hat requires a lot of support and it's tough to get the support over the shoulders.  The 3mf file isn't tweaked but it shows what I'm talking about.

 

samuraiBoyRemeshed_fixed.stl samuraiBoyRemeshed.3mf

Edited September 9, 2021 by GregValiant

[lyrana 0]

Wow wow THANK YOU so much @GregValiant!!!