I'm a machinist.I'll be out of work for the next couple of months recovering from shoulder surgery.
20+ years in the industry,i've spent the majority of my life running a small shop that specializes in building "skunk works" type projects with machine tool companies.Did some work for HAAS a few years back.
I'm bored stiff and would jump at the opportunity to offer my experience as a technical advisor,free of charge of course,to get your project done.
I can still click a mouse

Replicable tolerance,or repeatability as it is commonly known in the industry is determined by many factors.Frame rigidity is a major one.
Pm or e mail me if interested.