Bug First layer incorrect when sliced (solved)

[judge2005 0]

The attached STL file does not slice correctly. The first layer is just one line. The second layer shows the correct cross-section. Lowering the model in to the bed doesn't help. The first layer is still one line after slicing. I checked the model in Prusa slicer too, which slices it correctly, but I want to use Cura, not Prusa slicer (for various reasons).

 

Cura version is 5.2.2 on MacOS ventura. STL file was exported from FreeCAD.

top.stl

Edited January 31, 2023 by judge2005

[judge2005 0]

A much simpler STL. Just a simple cube. Shows the same symptoms.

cube.stl

[judge2005 0]

OK. It is something to do with this profile. Is there some way to diff two profiles?

Slow Klipper CR6SE.curaprofile

[judge2005 0]

...and that something was I had Initial Layer Horizontal Expansion set to -0.75mm. BTW I used the Profil Analyser (sic) plugin.

Edited January 31, 2023 by judge2005