These are 3D print ready files of the ribcage and spine. No non-manifolds. The models are created with blender and the level of detail has been created with the intention of 3D printing in mind.
The models are solid, and the scale can be easily modified to suit your printing needs.
If the scaling is too small in your slicer when you open the file, just go to the scaling and change the 100% to 1000%, so it scales it up 10 fold. For some reason some slicers don't understand the scale correctly that has been created with blender.
The scale of the unified ribcage/spine model is: X75mm Y52.7mm Z150mm
You can print the model as a solid piece, or in parts. The ribs have concave slots that conform to the spine at the corresponding level.
The dimension are now set that one can print the unified model in upright position with an Anycubic photon S printer, which is the one I use most.
Included files are: