Cura ignores part of model when slicing?

[Slegnor 0]

Never come across this before with Cura but its totally ignoring part of the model when slicing it

The model has an overhanging part and regardless of telling it to use supports, it just totally ignores the overhanging part and prints a basic cylinder.

I've played with pretty much every setting, including experimental ones, The only way i can get it show in the preview is to use surface mode which doesn't print a solid object.

Been thinking about the model, could it be the thickness of the overhang is too thin?

[gr5 2,189]

1) Please show a screenshot of the overhang.   My understanding of what you mean may be completely different than reality.

2) It should show up if it is at least as thick as the layer height.  If the entire overhang is between two slices then it won't show up.  You can tweak the layer height so that one of the layers happens to hit the overhang - for example change layer height to be thinner than the overhang thickness.

3) It could also be related to the "normals" in the STL file. These tell cura which side of every triangle in the STL (that's all an STL contains is unordered triangles in random order) faces solid and which faces air.  If your CAD gets that wrong then cura gets confused. This is particularly a problem in certain CAD programs such as sketchup and blender.

[bratinm 0]

I'm facing similar issue in Cura, Pin Hole and a slit which are optimised for printing without support are completely skipped during the slicing. I'm using the latest version, dont know what I'm missing here. Any help will be highly appreciated. 

I have tried the model in other slicers, they can print w/o any issues.

 

 

[ahoeben 1,955]

It looks like you have the "Make overhang printable" setting enabled.