This morning I decided to put away my synthetic hones, shapton, nortons, Naniwas, etc and RE_hone a razor I Finished on an Escher last week. I have been having zero success with my coticule and I will admit it, I gave up and kept it as a finisher to look back to from time to time.
I am glad I took my Coticule you see above out of it's sleep though, this morning I finally made improvements. I remembered all the talk about how your slurry can be too thick, especially on my layer of coticule, a very fast one in slurry. I was basically dulling my edges in slurry was faster than I thought I was. To prevent this I used a thinner slurry than I thought was acceptable, dulled on glass, and rebuilt the bevel in that.
The razor's bevel was set but not keen at all. Then I looked at coticule #8 in the vault (its just like mine) and saw how it only gets a + on how it shaves hair in slurry. I gave it some circle laps and half strokes and diluted it a little.
In the next step is where I found keenness. In the slightly more diluted slurry I worked the edge on half strokes, I didn't this a lot more than in Bart's video as I remember him saying my coticule will take more time in the dilution phases to get keenness. I basically took a half hour just half stroking and doing circles while slowly diluting, I can't even explain how slowly I diluted.
In Bart's video you see he adds a drop of water on a very regular basis, after one lap of half strokes (Ie 15 on one side, 15 on the other...add a drop of water). I didn't do this because it doesn't work for my coticule. Instead I listened to Gary and only added a drop of water when I heard and felt that level of slurry was done cutting the edge of the razor. I was amazed on how many more half strokes I had to make compared to Bart's video and his coticule. I pretty much made 40 sets of 15 half strokes per dilution step to achieve keenness. The reason I had to do this was my coticule is extremely fast in slurry but as soon as you start to dilute the hone becomes VERY VERY slow. This takes a very calculated approach to diluting that is different than shown on youtube.
I tested the edge on hair tests this morning (I don't like HHT, I prefer shaving tests) and the edge was pretty damn sharp, my stroke was a little off though as the toe wasn't sharpened!
My stroke is used to X patterns and large hones like the Norton combo so I need to familiarize myself with this stone more.
When trying to use the dilucot method please remember that you can't follow Bart's video exactly unless you have the same type of coticule, yours can be very different and it may make you frustrated.
Tonight I will dull on glass again and see if I can get the whole edge this time! :thumbup: