Mike, Your comment is much appreciated!
The Trunion Table picture enclosed in my last post was one of several
included in my post #238, page 20 of this Thread.
We have now decided to prototype the concept and have received the casting
for the rotary table. ( see enclosure)
Have observed quite a few Amateur Builders experimenting with 4tn & 5th axis
these days and this seems like an easy way to get there!
W. Smith, Mission Viejo CA.