Printing thin object seems bugged

[d-schmidt]

I don't know yet if this a problem with your build or a general cura problem.
It slices this really bad.
The walls in the object are 0.5mm. Had to enable "print thin walls" to get anything.

Any idea whats going on here? @smartavionics

Line Width 0.4 results in double printing of the socket:

and 0.33mm walls higher up:

Setting line width to .5 causes artifacts and holes:

Model:
quartz2_3mmLED.zip

[smartavionics]

Yes, that's standard behaviour for Cura, it has never been able to handle thin walls well. However, the UM folks are working on a new implementation of wall printing that is intended to fix this issue. See the Arachne discussions at https://github.com/Ultimaker/Cura/discussions for more information.