I completely agree with all the above: your problem is that the stone is not flat, and the reason it's not flat is that the Norton "flattening" stone isn't flat.
I bought one not too long ago and it was WAY out of flat. I rubbed it on a sidewalk (they are surprisingly flat) and that helped a lot, but it still wasn't flat enough. I returned it.
I use a simple system for flattening stones: a piece of glass, a sheet of kevlar from Lee Valley, and some 400 grit lapping compound from Lee Valley. Very cheap and works like a charm.
I doubt that there are any hand powered grinding wheels being made, I'm not aware of them any if there are. I like eBay and if you are patient, you can still find what you want for reasonable prices. I tried the antique malls and estate sales, but I spent more money in gas and time than I figured it was worth.
"History is strewn with the wrecks of nations which have gained a little progressiveness at the cost of a great deal of hard manliness, and have thus prepared themselves for destruction as soon as the movements of the world gave a chance for it." -Walter Bagehot
O well. I'll just keep looking for a vintage/used one then.
No thanks--not interested in eBay. Invariably my wife likes going to those antique malls and such, so now I've got something else to look for when she wants to go do that stuff.I like eBay and if you are patient, you can still find what you want for reasonable prices. I tried the antique malls and estate sales, but I spent more money in gas and time than I figured it was worth.
I would start your own separate thread on finding the hand grinders, as this is hard to find. Who knows what's out there waiting for a new owner.