That AI approach wins hands down if the file produced is practical and useable

Incomplete scans were always a problem bottleneck in the 3D process

It does the fiddly bits, squaring everything up in 3 dimensions, getting the teeth on the cog right, probably does the pitch diameter/MOD stuff from the raw data
squares up the different holes properly

Amazing

(btw you're all sacked. The robot has been given your job)

On a more serious note if you take the original 100% STL and open it in Meshlab
Then export the mesh to PLY
Then open it in this instant meshes

https://github.com/wjakob/instant-meshes

Save as an OBJ and upload in MOI via the subD

You get a very nice smooth 3DM file to play with, only 20MB

Certainly the best I've managed to do so far, no more monster files!