Hi there,
i got my first printer a few days ago.
Had to fiddle around some time to get it working, but now it starts to print.

My problem however is, that from about 3mm above the bed on, the print is no longer solid. There are no solid walls or ceilings. It just is some sort of wireframe.
Here i have linked a picture of 2 printed objects.

http://ablage.gromotka.eu/IMAG0124.jpg

The Object itself was downloaded from Thingiverse.

I am using Cura 12.12 and 1.76mm PLA.
The printer has a 0.4mm Nozzle.

My settings are (in the order of display in cure):
Layer-thickness:0.1mm
Outer shell width: 1.2mm
Retract: yes

Filling top/bottom: 1.2mm
Filling: 40%

Speed: 50 mm/s
Print-temp: 190C
Bed-Temp: 70C

Support: none
Platform adhesion: none

Diameter of material: 1.76
Feeding (?): 100%

I will start trying to find the cause on my own, but maybe someone here could give me a hint on what causes my problem.

Greetings!