My brother made one for me. He used two pieces of round pipe, one the fit over the other, and put 2 set bolts on to lock them stationary for the base. I can center a stave in it, then spin it around without have to remove the stave when tillering. I added some 10 oz leather to the bottom and the top plate so as not to damage the stave. Also we welded a horizontal rod ( T- handle) to the top of the all thread. It works great.