Here is the CAD'd plan for the rotating base and the rest of the table to the linear rails: Thoughts: -Not really my original idea at all. That idea would have required some LARGE castings and just am not set up for that yet. These are all smaller modular pieces that can be cast and machined in my VMC. -What is not shown is that the bed itself will be cast into 2 or 4 pieces and bolted together. -The three single-fastener legs should allow for shimming if necessary. -There is a taper roller bearing and a thrust washer that will allow for preload to be set for no play. -Just realized the one table mount is not constrained correctly. -The legs do clear the table mounts (pretty hard to see) -Provisions to securely attach the ballscrew nut need to be added. However, looking at the side profile there is ample room for a rotating bull nut assembly which kind has been the end goal so that might happen! Feel free to openly criticize this design with only 1 caveat; you have to have a better idea to share!