I found the Collada File from** _gAUI_** at 3D Warehouse: https://3dwarehouse.sketchup.com/model/f1f19a3ef5878efe631e05605822d3dc/Festung-Hohensalzburg
Thanks to **_gAUI_** for the great content!
I was looking for a model of this castle for some time now and wanted to make it a printable .stl file.
Since i couldnt create a printable file out of the collada .dae file, i tried to use blender and 3D builder to make it a solid and printable stl.
It took some time, but at the end i managed to print it quite nicely so i wanted to share it here.
Download and try it out!