I will probably get in trouble with this perspective.... I don't see the belt driven system as grinding but more of course polishing, very course. It is a slow rpm where grinders, hand held or bench mounted are 1800+ rpms. More heat from the faster wheels. Most tool you purchase today come with beautifully sharpened edges, from power buffing.
I do come very close to finishing some joinery with my ax, gripping the head and pushing right to the line.
I agree with Don, everyone need more axes.
