Thread: Trying to learn my Nakayama

Are those pics at different magnification ? The first ones seem greatly magnified compared the final shot.

Originally Posted by Disburden

Very cool. Thanks!

What do you mean by not expecting the slurry to break down?

I remember reading somewhere that on the final tomonagura slurry I am to just keep going until the slurry breaks down.
When the slurry thickens and changes colour towards gray is supposedly when the slurry starts polishing.
This is true when polishing the edge of a kamisori, or at least it seems to work on my Iwasaki.
The problem is. For this to happen when trying to hone my trusty Dovo, I have to keep on going for more than 60-80 strokes (probably due to lighter hone pressure).
The only thing breaking down has been the Dovo.
If I stop at about 20-30 strokes, I'm usually ok, even without the slurry breaking down

Originally Posted by onimaru55

Are those pics at different magnification ? The first ones seem greatly magnified compared the final shot.

The first four is supposed to be x400 (or at least it says so on the microscope) and the last one is x20.

I thought the first few were a pretty high mag.

Originally Posted by nikolasnjerve

I remember reading somewhere that on the final tomonagura slurry I am to just keep going until the slurry breaks down.
When the slurry thickens and changes colour towards gray is supposedly when the slurry starts polishing.
This is true when polishing the edge of a kamisori, or at least it seems to work on my Iwasaki.
The problem is. For this to happen when trying to hone my trusty Dovo, I have to keep on going for more than 60-80 strokes (probably due to lighter hone pressure).
The only thing breaking down has been the Dovo.
If I stop at about 20-30 strokes, I'm usually ok, even without the slurry breaking down

Thanks!

What Ive done to use the breakdown slurry is refresh the slurry a few times when it turns grey. Then on the final slurry I will hone until the slurry dries into a powder on the stone. I tried stopping earlier but it seemed like it was under polished.

Its a maruichi brand nakayama kamisori asagi.

Originally Posted by Disburden

Thanks!

What Ive done to use the breakdown slurry is refresh the slurry a few times when it turns grey. Then on the final slurry I will hone until the slurry dries into a powder on the stone. I tried stopping earlier but it seemed like it was under polished.

Its a maruichi brand nakayama kamisori asagi.

Hmmmmm Sounds very very familiar I also use my Nakayama to dry after the full slurry breakdown , gives a beautiful Haze bevel with a Mirror like fin a bit more work and much harder to achieve with a Western style razor rather then a Kamisori style...
The problem is the very light strokes we use when honing Western razors does not break down the slurry as effectively as the controlled pressure strokes of Kamisori honing or the Japanese style used by Sushi knife sharpening...
I think most of us have come up with some type of technique to aid the slurry breakdown for western razors whether we realize it or not.. I use the Pigtail stroke, I saw in one of Alex's vids he has a funny little twist stroke also.. I think that is the trick to getting that last little bit out of the J-nats

Anyway that has been a theory of mine since I started getting the edges I was after on the Nakayama, I kept getting them pretty easy on Kamisori but the Western razors were good but not great, then I started working the slurry more and I got the edges where I wanted...

Try y/g escher on Nakayama Asagi to dry stone...pretty nice as it breaks down quite nicely.