Aligning two scans to make a solid how do I align two scans to make a solid, please ? I have a scan of the top and a scan of the bottom of an object. Now I want to align them using reference points, to make a solid stl file that I can print. thanks in advance.
I have had to do this before with a boxy shaped object but it was a couple of years ago. I think what I did was join both of those meshes as a single object and then use the remesh modifier on that.

I'm just for the life of me trying to remember how I fixed the messy geometry between the scans XD