14 Comments

  1. 2 microns is unheard of I’m amazed that someone can plane such a thin amount, another species you might like to try is Huon Pine. It’s very soft timber that’s used for carving and chip carving here in Australia. It’s also famous amongst tool makers when demonstrating their planes, it cut through like butter leaving the savvy newcomers to be amazed. Good luck in the competition. What are the prizes?

    1. It’s just truly incredible, just boggles my mind that the blade can actually hold up for the length of the pass (and my understanding is that they’re using carbon steel) without even the smallest micro sized chip which would break up the shaving.

      The competition wood will actually be supplied on site, so it will all be similar. Huon pine sounds nice!

      The prize is a Japanese Natural stone;

      http://mokuchiwoodworking.com/events/kez2016/

      1. I’ve never worked with Huon though only planed it a couple of times, I actually have a small amount in my shop that I found in the bins as off cuts. It’s too soft to use for furniture but may be clocks on walls would be ok I suppose. It’s a creamy white timber very attractive looking and glistens when planed, kind of reminds of a milky bar chocolate.

  2. Brian:

    You may find it interesting to hear that winners of the Kezuroukai over here in Japan often don’t sharpen their blades beyond 6,000 grit. I was told that, while it makes for a rougher cut, it produces a better shaving than a blade polished to a greater degree. I have not tested this idea, but it makes sense.

    Stan

    Stan
    1. Stan,

      That is very interesting. I had read on another blog of someone polishing the back to very high degree but only working the bevel to 1k and pulling an 8 micron shaving. Not really knowing the source I was suspect of it, but now that you also mention it I think I will try it.

      If nothing else it would make eliminating the wear easier, hah. I’ll give it a try.

      Cheers
      Brian

      1. Hi Brian,
        I”m wondering if there is any comparison between the Nakayama or Sigma and the Shapton 16,000?

        I’ve just ordered a new micrometer but I know I’m getting something in the 7 to 10 micron range using the Trend 1,000 as a secondary bevel followed by a Shapton 16,000 for a tertiary. I’m thinking of seeing what the 30,000 Shapton will do.

        Laurence Lance
      2. Hi Laurence, I find the Nakayama to be slightly better than the sigma 13,000. There is very much a variety in stones from Nakayama so it’s important to get one that is task specific. I can’t say about the Shapton, I haven’t used it. Where are you finishing at WRT final bevel angle?

        bpholcombe
      3. I free hand sharpen so the angels use plus or minus. Primary is 25 degrees. I then raise up the blade about 3 or 4 degrees and sharpen on the Trend 1,000 for about 10 seconds.This gives me a burr. That means I’m about 29 degree or so.

        Next I move to the Shapton 16,000 and raise up another 3 or 4 more and spend another ten seconds. Lastly I use the ruler trick and remove the burr while I polish the back of the blade. This take about 4 seconds.

        I’ve made a number of very short clips on this for Trend but so far they aren’t up.

        Laurence Lance
      4. Interesting, you’re getting good results from this if you’re getting 7 micron shavings but it sounds a bit steep to me with a finished angle around 30-32 degrees. I want more clearance than that offers so I maintain 25 degrees all the way through the finished bevel. In my normal work I lift the blade on the finish stone and take an additional 2-3 strokes which puts me at about 28 degrees, but for Kez I prefer not to. The ruler trick is OK, but I prefer to setup the back to an ‘ito-ura’ which is doing all of that for you without the added variable. I have trouble feeling for a burr with the ruler trick and no trouble with a normal flat back setup with ito-ura.

        bpholcombe

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