Sternwarte Höfingen - Gehäuse Rektaszensionsachse - Sideres 85

The Höfingen Observatory is a small observatory near Stuttgart. This housing for the Sideres 85 polar axis replaces the old aged housing.
Due to the size of the case and the small print size of my 3d printer, the case had to be divided into four parts. Since the polar axis is very massive, two parts would have had to be created anyway.
If someone has a better idea how to mechanically connect the two halves of the case ... I am open to any solution. Feel free to remix.