Help Why did Cura split my STL at this layer?

[BRICKS357 1]

Hello makers,

 

I am fairly new to 3d printing, I only got my Ender 3 V2 a few weeks ago, but I have the basics down. I tried printing this rag-doll of a guy I know I stitched together in Blender, but I found some terrible layer-shifts were programmed into the g-code. It even removed a few layers of hair. Not sure if the head is causing this or what. I do need this for a white elephant party soon so any input is appreciated. I scaled it to be 152.5mm tall if you try to slice it.

 

Thank you.

LLRAGDOLL.stl

[BRICKS357 1]

It was because the head was put together so poorly in Blender. After fiddling with Mesh Mixer i was able to get rid of the slices.

[ahoeben 1,848]

I always find the figures here a good explanation about why "bad" models confuse Cura:

https://github.com/Ghostkeeper/SettingsGuide/blob/master/resources/articles/troubleshooting/missing_parts.md#non-manifold-meshes