I'm in the process of designing an Automatic Tool changer for my Charter Oak Automation RF45 mill. I am going to design it with the original R8 spindle as I am finding the NMTB 30 tooling harder to find in my area. plus it doesn't lend itself to automatic tool changers. I am also designing new R8 tooling similar to what David Decaussin did, It is R8 Taper with a CAT V Flange. I am including a model of what I have so far.