Hello Pat!
I learned that platter base technique many years ago from the amazing Frank Penta (incredibly creative woodturner, educator, and wonderfully energetic and generous person!) at one of his platter courses at John C Campbell. (I hope posting this much detail is not inappropriate for this thread. Now that I've written it, I'm wondering if it might have been better in a separate thread in a different sub-forum.)
It’s a multi-axis turning - basically drill four holes in what will be the top of the platter. Each is sized to fit what is often called a “woodworm” screw. One hole is in the exact center to turn the outside diameter, most of the bottom, and the chuck recess for eventually turning the top. The other three are in a circle a short distance (1/2" for this platter) from the center, spaced 120 degrees apart. These three holes will let you turn the multi-axis base.
John,
I appreciate such a detailed answer!
I’ll have to give this a try. And, look up Frank Penta. Such great inspiration in this forum 🙂
Thanks,
Pat