I've got some STL models created from microCT scans that have an undesirable twist in them. I was wondering how I could use Blender to remove the twists using something like proportional editing. The STL models are very large (>150MB) and contain upwards of 6 million triangles.
I can import them into Blender but when I try proportional editing the mesh gets all distorted. Would it possible to create a mesh plane of similar x-y dimensions, sub-divide it, and somehow link it to the STL model so that the proportional changes in the mesh are reflected in the STL?