Red, that is truly impressive and that type of thing is the reason I come to this website. It is just amazing to see what different minds devise and how guys modify the works and tricks of others to make them even better.
That thing is fascinating. I'm sure you thought of this already, but I'll bet you could also apply a sander to the same task. Off the top of my head, I could imagine a sander of the type where a long thing belt is suspended between two driving rollers. That would allow the blank to move the belt somewhat so as to not remove too much material too fast.
Great work.