Originally Posted by
Double0757
Hi Brook, thanks for the feed back! I was thinking I could simulate (synthetically) what's happening with friable grit stones, that as you work the slurry, it breaks down in smaller garnets or what ever, polishing further the edge, than when you start with the original slury.
I've taken two blades on a progression of 8k, 16k, Zulu gray water only, .25CBN diluted slury (like just slightly cloudy water) 25-30 X strokes, clean stone and use .01CBN diluted slury( same as the .25cbn) and do another 25-30 strokes. On the second blade I think I did more strokes. I test the progression of the edge with TPT, both side ways and along the edge to see how much it digs in an resist the thumb sliding on the edge. I also use the hairs on my thighs, or any part of my leg that still have hair(I bike, so it's a speed thing, LOL) to see the sharpness along the edge. that's how I know if an edge improve or digress after every stage, until the final test, the shave.
Things I've found, using heavy slury sets the edge back on sharpness. When I did the first blade, that's what happen, the slury was milky (with the .25cbn) and the edge degraded. After diluting, edge came right back. And that is why I would like to try the natural friable stones, like asano botan, tenjou, mejiro and tomo nagura. I don't know anything about Jnats, and I'm quoting stones from what you wrote on another thread (friable stones), because if it works, you could use the ZG as a Jnat.
I'll use this year 2013 to read on Jnats and to further get to know the Zulu Grey and the Turingians. By end of year, I'll be ready to buy a Jnat and it's respective slury stones. Then I'll try them on the Zulu and see. Who knows, maybe I'll sell all the stones and keep the Zulu with the Jnats friable stones, or sell all the other stones and keep the Jnat, or more likely, don't sell anything and keep them all. "Because edges on finishers are like a box of chocolate, you never know what you're going to get". Double O