bugbear
Established Member
Corneel":38uldy8h said:Thanks James. That's much according to all the textbooks. These grindstones were in use for eons.
My little theory, the grindstone would have been used only once a week or so, not on a daily basis. And most workmen would try to keep the bevel straight but ended up with a bit of convexity anyway.
Yes - that's the consistent story across nearly every period reference I've seen, across multiple decades and authors.
Try to keep the the bevel flat and low, fail, (hollow) grind out the failure, repeat indefinitely.
BugBear