Here are the left and right pillars as spare parts for "Schleich World of Nature Animal Nursery" No 42003. The parts have the Numbers 42003.25 (R) + and 42003.26 (L).
We were missing those parts from the beginning and the Schleich Support wasn't able to deliver those parts anymore. So they became one of my first projects in Tinkercad...
Wooden 3D Printer PLA Filament 1KG 1.75mm toauto PLA
(or similar) - Wooden
I've laid the model down in Cura and needed a little more support for the cross to get reliable results. Used Support Overhang Angle = 45 and some Support Blockers (see one of the photos)
Added the structure to the bottom side (where model is lying on the bed) e.g. with hot screw driver
The model has been constructed in Tinkercad without having the originals. Just had the manual and photos found on the web. So the pillars may differ in some ways from the originals...