There are several files of this model in the archive. Monolithic model in obj, fbx, stl formats. And a split model in three stl files for easy printing. 1 stl - all parts of the model in one file. (1 776 KB) 2 stl - the left side of the model. (879 KB) 3 stl - the right side of the model + three pins for connecting parts of the model. (897 KB) The parts of the split model are triangulated. The monolithic version is not.