So I have now roughed out 15 bowls and coated the end grain with Paste Wax, and will be patient for a year or so. A guy at a class the other night says he turns them green to final thickness, then powersands them, which creates enough heat to all but finish his drying. He did say to "move quickly". I do know I need to find some sort of rotary sanding system. Grinders too fast? Should I look at a right angle drill with a sanding disk attachment? "The Rotary Sander"? The bowl was out of a chunk of walnut, fairly green, approx 10 in. dia. I did notice a small crack near the rim running around. I will wait a few weeks and maybe try to turn that part away and see what can be salvaged.
Thanks