Thanks John. After turning the blank leaving a tenon on each end. I used a parting tool to cut down to the lip, then cut it apart with a small saw. I also use a Nova Chuck, then it's a matter of drilling out the lower section and shaping the lip. once that is completed, I chucked up the cap, drilled a small center followed by fine tuning the fit to the lip of the lower. Once the fit is correct put the two half's together and finish on the lathe, then cut the tenons off the ends then sand and finish. I have also used tape to protect the finish to place the turning in the Nova Chuck.