[Layers is not generated when model i laying flat]

Thanks for the help

[Layers is not generated when model i laying flat]

Thanks for the reply.

The file is here: http://www.thingiverse.com/thing:1201413 it is the closed door

[Layers is not generated when model i laying flat]

Hallo fellow printers

I have a strange problem. I have not been able to solve.

I have a file from thingsgivers.com of a door to a board game. When the .stl file in Cura is standing up, no problem, the model printed nice.

When I lay it flat on the buildplate, to make it easier to print, layer 17-19 disapers. This means that layer 20 is being printer in thin air, and the result is not good. I have tried in Cura 15.04.6 and also in the new Cura 2.3.0 the same result.

I have inspected the .stl file nothing is missing, and also have tried to draw the door from scrach, same result.

Anybody got an idear. Thanks