SOLVED Cura won't acknowledge face-down boolean differences

[disc0 1]

When the boolean-difference section of the sample is face up, it can be seen within the slicer-preview.  However, if you flip the model 180 degrees so the cutout is facedown, the cutout can't be seen at all.

The attached sample was used instead of my actual model because it's extremely basic, and watertight.  It also rules out possible causes such as 
- walls are too thin
- boolean difference too small to slice

 

Even with this most-basic model, I can't seem to get Cura to acknowledge boolean-differences, when face down.

 

 

 

large-test.stl

[disc0 1]

[gr5 2,170]

Sliced perfectly for me.  Instead of posting the STL file post the entire project which will include the STL and your rotations and your machine settings and profile and overrides.

 

However my first guess is that you should check the "mesh" settings and make sure they are all unchecked.  Particularly "remove all holes".

[gr5 2,170]

Oh - to save project file do "file" "save..." and post that here.

[disc0 1]

Project file attached.

 

As it turns out, "Union Overlapping Volumes," and "Remove Empty First Layers" were checked in the mesh fixes section.  However, I still can't see the boolean in the preview after unchecking, and re-slicing.

 

Thanks for the review!

CCR10S_large-test.3mf

[tinkergnome 927]

57 minutes ago, disc0 said:

However, I still can't see the boolean in the preview after unchecking, and re-slicing.

 

"Experimental" -> "Make Overhang Printable"

 

Well... this setting does exactly what you ask for. It changes the geometry and...  "makes all overhangs printable"  🙂

 

[disc0 1]

I can see the recesses in preview now, that appears to have been the issue.  Thanks!