Thread: naniwa

Originally Posted by Ben325e

DC, isnt the naniwa 150 the Omaru, not the superstones?

To many lines to remember what any one naniwa came from It's a dence grey brick and it's not overly thursty. Bugger saves me tons of time when fixing abused hard steel knives

I'm still pretty new to these as I only got them a few days ago (5,8,12).
I'm curious about people's experience w/ the 12k soaking up a lot of water--mine seems very thirsty.

I'm also wondering how often they need to be lapped--I lapped them flat when I got them & then did most of my razors. They were wet for over an hour. I just checked them today & they need to be lapped again. Do they sort of even out after some use or did I leave them wet for too long? I just hope I didn't damage them--they look fine; just a little bit dished. Nothing my D8C couldn't remedy.

EDIT: re-lapped them--they seem fine, but I'm still curious.

Originally Posted by PA23-250

I'm still pretty new to these as I only got them a few days ago (5,8,12).
I'm curious about people's experience w/ the 12k soaking up a lot of water--mine seems very thirsty.

I'm also wondering how often they need to be lapped--I lapped them flat when I got them & then did most of my razors. They were wet for over an hour. I just checked them today & they need to be lapped again. Do they sort of even out after some use or did I leave them wet for too long? I just hope I didn't damage them--they look fine; just a little bit dished. Nothing my D8C couldn't remedy.

EDIT: re-lapped them--they seem fine, but I'm still curious.

I have just got full set and i lapped them on same as you dmtc as for soaking up water on 12k and mine did'nt i don't hone right to the end of the hone i finish my stroke about a good inch or two from edge keep a puddle of water on my surface even my 1k did'nt soak up water. They sy don't soak them but i just soak mine or run water over them for two minutes i think it s better.the 12k only needs 10 to 20 strokes there no way you could of dished it at that many strokes i gave mine a serious lapping probably to much may be after laping they could be porous for a little while my wern't especial compared to nortons they are porous especialy 1k. hope this helps i'm just going to check my 12k see how it is now it has dryed and rested.

I've never soaked mine--just spashed some water on top & that's it. Interestingly, if I lightly move a finger across the top (on the 12k), I can almost feel a kind of gritty start & stop--the 5k is butter smooth wet or dry & the 8k is almost as smooth. I felt this when honing too--I figured it was just a technique thing (needing even less pressure)--now I'm not so sure.

One other thing: do any of your hones have a sort of speckled look to them after lapping? My 12k is the most speckled--could these "things" be expanding @ a different rate than the rest of the hone & causing the bumpiness? I'm really hoping I didn't get a defective one.

Originally Posted by PA23-250

I've never soaked mine--just spashed some water on top & that's it. Interestingly, if I lightly move a finger across the top (on the 12k), I can almost feel a kind of gritty start & stop--the 5k is butter smooth wet or dry & the 8k is almost as smooth. I felt this when honing too--I figured it was just a technique thing (needing even less pressure)--now I'm not so sure.

One other thing: do any of your hones have a sort of speckled look to them after lapping? My 12k is the most speckled--could these "things" be expanding @ a different rate than the rest of the hone & causing the bumpiness? I'm really hoping I didn't get a defective one.

Right i can reply on that yes my 12k is speckled i have one big speckle plus loads of little speckles on most of my hones. Mine feel smooth with my finger. Surprisingly the 1k feels rather smooth for 1k but cuts realy quik. i noticed my 5k feels realy smooth smoother than my 8k and the 12k feels smooth but not as smooth as i would of thought not as smooth as my 8k norton and like you say i've noticed at first when honing on 12k the blade kind of stuck or sucked to the hone like a greasy sticky feeling but now i have used more often they seem fine. Thats the gritty start and stop feeling you are describing and same as you i find 5k smooth and 8k almost as smooth.

Originally Posted by PA23-250

I've never soaked mine--just spashed some water on top & that's it. Interestingly, if I lightly move a finger across the top (on the 12k), I can almost feel a kind of gritty start & stop--the 5k is butter smooth wet or dry & the 8k is almost as smooth. I felt this when honing too--I figured it was just a technique thing (needing even less pressure)--now I'm not so sure.

One other thing: do any of your hones have a sort of speckled look to them after lapping? My 12k is the most speckled--could these "things" be expanding @ a different rate than the rest of the hone & causing the bumpiness? I'm really hoping I didn't get a defective one.

I currently have the 1k and 12k, and today ordered the 3,5 and 8k stones. My 12k is speckled mostly down the center but feels smooth to the touch. It also tends to use more water than any other stone I currently have, but the finish it leaves is incredibly smooth and polished. I also feel some drag when using this stone but it seems to be a good feedback to tell me where I am in the process.

Hope this helps.

Ray

I agree with rayman i get drag on the 12k i've just honed on mine to night. They are nice stones to use and its great to just sray and hone rather than soaking like my nortons.

Sounds like mine might just need a bit more lapping to "even out". My initial attempts @ honing with it resulted in sub-par edges. I tried again, but haven't test-shaved yet. Maybe I'm just still used to the Belgians (more forgiving).

One thing I'll try next time is, instead of a quick lapping after honing (to clear swarf), I'll get the stones wet (the 12k might be better to run it under the faucet for a minute owing to its thirstiness) and quick-lap before honing.
Hopefully I'll figure this out before long & get whisker-wiping edges again!

My brand new Naniwas did get a speckled look after lapping. I got 1k/5k/8k/12k from SRD. (Haven't touched the 1K yet.)

I lapped each of them twice with a DMT8C 325. I was not able to finish the 2nd lapping on the 8k and 12k. Each has a bit of pencil line in one or two corners that won't go away even after 30+ minutes of lapping! I think the DMT might be getting loaded up or otherwise dulled. I tried cleaning it with a stiff brush under running water but that didn't help. This concerns me because if the DMT is loaded up I may have transferred coarser grit to finer hone and may need to do this all over again!

I am using the stones as is and just avoiding the far corners -- less than half inch of pencil line.

Haven't yet shave-tested the razor I honed.

I lapped each of them twice with a DMT8C 325. I was not able to finish the 2nd lapping on the 8k and 12k. Each has a bit of pencil line in one or two corners that won't go away even after 30+ minutes of lapping! I think the DMT might be getting loaded up or otherwise dulled. I tried cleaning it with a stiff brush under running water but that didn't help. This concerns me because if the DMT is loaded up I may have transferred coarser grit to finer hone and may need to do this all over again!

Same thoughts here. I just honed as-is & didn't go to the last 10 mm or so. Could be that. Or could be they actually do need to be lapped more in the beginning, despite what Naniwa says. The first time I used them was right after the initial lapping and after drying, they definitely needed more lapping the next day. In any case, I'm very interested to try a shave-test tomorrow.