Thread: Shoobie Doobie Asagi

Originally Posted by hi_bud_gl

i bought one of those too.
I hope it will act same as your describe Rich(i hope i didn't mess up name). if not i am sending it to you and you got to cover the damage.
have fun.

Send it to me and I'll cover the damage. I bet it'll be an awesome stone.

Originally Posted by PA23-250

I used my D8C for lapping. I also used it to raise slurry on the stone during the period where it worked well. I always cleaned it out extremely well before taking it to the Nakayama. Don't think that's the issue as it used to work great that way. I know some other guys have used a D8C also & while not an Atoma 1200, it does seem to work, @ least w/ those respective stones. No idea if those stones are more tolerant or not. WHen I get the new one, I'll probably use a tomonagura on it.

Is you surface of your Jnats after lapping like a mirror as I showed it here?
http://straightrazorpalace.com/748576-post26.html

If not you are lapping wrong.
The Diamond is good for to get the surface to a plane (geometry) but it is too coarse to make the surface smooth.

You can read it here too at JNS blog.
JNS japanesenaturalstones.com: Tips and Advices for JNAT
3. Flatten you stone with a diamond stone or a sandpaper, but use another natural stone for final flattening surface need to be as smooth as possible. If you dont have another natural stone to smoothen you stone with use Tomo Nagura or any Nagura you have.



Edit to add: Can you post picture of your stone?

After the DMT, I've used the hybrid side of a very hard coticule to smooth it more. Don't have a tomonagura or Atoma, so I've been experimenting w/ a (clean) barber hone to raise slurry. I'll post a pic when I can get my camera to work.

If you make picture make also a mirror picture against TV or light.

I've got these 2--my camera is almost useless, so I doubt if I can get it to show, but yes, it does mirror now. Gave it another lapping & finished /w a Thuringian slurry stone--gave a mix of Kiita & Thuringian slurry.

Originally Posted by PA23-250

I've got these 2--my camera is almost useless, so I doubt if I can get it to show, but yes, it does mirror now. Gave it another lapping & finished /w a Thuringian slurry stone--gave a mix of Kiita & Thuringian slurry.

>but yes, it does mirror now.

So if you said that the stone after lapping does not work good did you have a mirror surface?
I wanted that picture.

How was the results after you made it mirror smooth?
With water only it should be much much slower than with a diamond lap only but you should get much finer sharpening/polishing.

I told you my camera can't get it to show up. It's a cheap, old, low-res camera. If I can borrow a better camera, I'll post one, but until that time, I can't do it.

Just gave it another lapping as insurance & have not honed w/ it yet--I've got another Thuringian to test 1st.

Now I'm confused. Everything I've read on every seller's site (JNS, Japan-Tool, JapanBlade) says that some slurry use allows for breakdown, which gives a finer edge & water is used @ the very end, after some amount of slurry. JNS also says that slurry use in the beginning gives more even cutting than water.

Originally Posted by PA23-250

Now I'm confused. Everything I've read on every seller's site (JNS, Japan-Tool, JapanBlade) says that some slurry use allows for breakdown, which gives a finer edge & water is used @ the very end, after some amount of slurry. JNS also says that slurry use in the beginning gives more even cutting than water.

I do not read so much what sellers/vendors say but I do not know what is confusing you.

Its so simple.

Jnats will have many faces how you use it.

1. Surface Diamond lapped and slurry with diamond or tomonagura:

Pros: It will give the most abrasive power. Its fast.
Cons: It is coarser then the potential of the Jnats.
You may get scratches.

2. Surface smoothed with tomonagura or other fine finishing stone to mirror surface with tomonagura or mikawa nagura slurry.

Pros: medium abrasive power. Medium fast.
Cons: It will not give you the ultimate fine grit of your Jnats.

3. Surface smoothed with tomonagura or other fine finishing stone to mirror surface with water only.

Pros: It will give you the finest grit.
Cons: Its very slow.

The best way is to proceed 2. to 3.

Originally Posted by PA23-250

Now I'm confused. Everything I've read on every seller's site (JNS, Japan-Tool, JapanBlade) says that some slurry use allows for breakdown, which gives a finer edge & water is used @ the very end, after some amount of slurry. JNS also says that slurry use in the beginning gives more even cutting than water.

Yes this is how it is done, and it makes sense. Slurry will always cut faster , but it will break down as you keep honing on it. Eventually the slurry will become as fine as it can, at which point you finish on water only for ultimate keenness. Think of it as sort of progression of grits.

The difference between what you've read on some sites and what people are suggesting in this thread is that people here are recommending that you raise slurry with a tomonagura, because the diamond plates will leave your stone with a rougher surface, which doesn't give you as good of results. I haven't tested enough on my own to verify that last bit for myself, but I'm OK with believing it and I use a tomonagura anyways.