Ran into this by chance, pretty interesting: I was a little surprised both by the circles and the 1:1 ratio between omote/ura. Also interesting is how he uses a diamond pasted strop seemingly not to refine the edge but more just to deburr it.
Honing tutorial by a kamisori maker
https://www.youtube.com/watch?v=NUN7NLf03rQ
4 Comments
gcgallant@sub.wetshaving.social · 2 pts · 2y
I was surprised by the work on the ura too, however, the Nakayama Shouhonyama + Mikawa nagura combination is very fine so I guess there's no worry about flattening on that side. I use the same Shapton diamond lapping plate that is in the video, and it is surprising how these Lvl 5+ Jnat finishing stones wear with use and need frequent flattening. I found his admonition to keep stones flat an interesting part of the video.
Deburring on a loaded strop is definitely a knife sharpening thing. I don't think I've seen it done on a kamisori before but it makes sense.
PorkButtsNTaters666@sub.wetshaving.social · 1 pts · 2y
Thanks, very interesting! The technique is very different from what I've seen from Western honers (even for kamisoris).
HomeAwayFromHone@sub.wetshaving.social · 1 pts · 2y
It does remind me of Iwasaki though, I think he had a similar deburring-with-paste thing in his classic book, been a while since I've seen that linked--well worth checking out if you haven't: https://naturalwhetstones.com/wp-content/uploads/2021/09/Honing-Razors-and-Nihonkamisori-by-Kousuke-Iwasaki.pdf
PorkButtsNTaters666@sub.wetshaving.social · 1 pts · 2y
I didn't know that-very cool 👍