Robust Zeta Positioner

The overall height of the assembly ranges between 117mm  minimum and 159mm maximum using the included model files. Obviously the threaded portions could be significantly lengthened or shortened. I printed the dark blue component in PETG and the light blue one in PLA-CF. The fit-up between the two at assembly was proven to be suitable. I asked my wife to think of a use case for it and she suggested it might make I fine Lazy-Susan :-)