Originally Posted by
Steve56
Here’s another idea, just smooth it out and make that hollow as uniform as possible. Then use it for microbevels and wedges.
Alex Gilmore (Japan Stone) once made a hollowed hone that looked a lot like yours. He made a fixture to grind the stone uniformly. The idea was to be able to hone wedges without tape. I had the stone for a while and measured the radius of the hollow to be a little over 1 meter, about 42” IIRC. The math showed that the hollow would increase the bevel angle by about 1 degree, or one layer of tape.
The nice thing about this strategy is that you don’t lose much stone, you just need to find a use for it as-is.
Cheers, Steve