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Thread: New profile, 240 mm Carbon Gyuto

  1. #31
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    Quote Originally Posted by PierreRodrigue View Post
    Not quite! Its pissin' me off! Trying to get a better finish, but its so bloody hard and abrasion resistant!
    Ouch!

  2. #32
    I thought I would follow up and offer some of Salty's comments on the knife and steel. After near a month with him, this is what he had to offer as far as feedback. I'm not sure if I mentioned, but the profile was from a sketch Salty sent me. I like it!

    I want to say thank you for beating on this for a while Salty, I appreciate it.

    Re: How did it do?

    The blade: It could use more heft IMO. It's laserish. It could be thicker starting at the spine and eventually coming to a thin edge. With that being said I think the distal taper could be more pronounced. The knife wants to flex to close to the middle of the blade. If there's going to be flex I feel it should be slight or near the tip.

    I like the profile. The height at the heel is good for most folks. A little narrower near the tip perhaps. Which would lengthen the transition also.

    The Grind: You seem to have a pretty good grasp of the spine to edge grind. With a little more steel to work with it could be a little more pronounced. The weight of the blade will be a little heavier but the weight will be distributed properly and won't feel like it. The balance point will move forward a little but not a big deal. The grind? Is the hollow top worth the effort?
    Yes and no. I understand that's a PITA but.........and it's not absolutely necessary. It's about weight and distribution. When people say "If feels good in the hand" they don't realize it but they're probably talking about weight distribution.

    The steel: I gave it my usual progression and time. It's hard stuff. It got plenty sharp but not as sharp as some. If I gave it more time and effort it may get sharper but for most folks that was plenty sharp. It almost feels glassy on the stones and it's pretty obvious it's not losing much steel.

    Once sharp, it will hold that fresh edge a little longer than most but what I found cool about it was it touched up very nice. Once plateaued the remaining edge was more than sufficient and held up very well.
    I did notice that I got some micro chips in the transition area leading to the tip. As mentioned before this area takes a pounding. The chips make have resulted from debris on the board or pivoting while rock chopping. Not unlike the Hattori KDs. I was able to sharpen them out without much trouble. That's how small they were considering how hard the steel is.


    Profile: I like it. Once you add steel to the blade you might be able to support a slightly narrower tip. Slightly.


    Salty mentioned that a good starting point for spine thickness might be 3 mm, this one is thinner at 2.4 mm. I know no one has yet tried it but Salty, but what are your thoughts on thickness?

    Also, at 64.5 HRC, would this be outside the realm for you guys? I wouldn't use this steel alot, but to have it available for use, yes.

    Look forward to comments!

    Pierre


    Feel free to visit my website, http://www.rodrigueknives.com
    Email pierre@rodrigueknives.com

  3. #33
    I hesitate to gripe about flex because I feel as though it reflects more on my unnecessary torquing of a knife than its short comings... but +1 to more knives flexing further towards the tip.

    As to how much heft you want...depends if your selling it to someone wanting to rough it up though busy shifts, or someone who wants pure effortless cuts but isn't in the weeds enough to twist and bang on it like a mad man.

    Either way, the knives of yours I've seen in person make me jelly. Someday I'd like to give one a try.

  4. #34
    Senior Member Crothcipt's Avatar
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    My Tanaka santoku is 65 hrc. It is also san-mai (sp?) blade, I like the hardness and find I am wanting a little more on my knives.

    I agree with eshua about the heft. I think its like looking at a woman, you want to be with the sexy one until you get to know her. Then the semi good looking one you get to know her and want to spend more time with. Its a gut reaction, but one that I don't always seem to want around all the time.

    But he does make some great comments on what you as a builder want to hear for feed back. I learned quite a bit. Ty for posting.
    Chewie's the man.

  5. #35
    D AMN!!!! I wish I was in any shape to drive up to see Salty and that blade

  6. #36
    If you want to see it, that is easily arranged.


    Feel free to visit my website, http://www.rodrigueknives.com
    Email pierre@rodrigueknives.com

  7. #37
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    If it's anything like cpm m4 I bet it would be a fun steel to use.

  8. #38
    Senior Member VoodooMajik's Avatar
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    I'm not sure if I have the gear to maintain anything in the 64 HRC range as an average user.. I would love to give it the works, but a blade for the more skilled and experienced. I've only got a fork from Pierre right now, but I'm jealous of many of the knives I see and hope to make more investments in the future.
    It's not the Answer it's the Experience

  9. #39
    The alleles created by mutation may be beneficial


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    I think 64+ is too high. I would order something in the 61-62 range.

  10. #40
    Thanks for the feedback guys, anyone else, please weigh in. At 64+ i realize this is much harder than what most have tried, and likely would consider trying. This steel as I mentioned is not going to be a replacement for anything I am using, but is something I would use if asked. Trust me when I say, it is easier to sharpen it then to finish it!

    The review from Salty is quite valuable. I didn't clean it up much, as I beleive it is a great learning tool for myself and others. As a knifemaker, I rarely get objective feedback, as with most things, if you order something your way and you get it, your happy. With this knife, Salty provided the profile and a couple other suggestions, and was willing to play with it and offer feedback with no bias to it. I think its easier to pick it apart, if you didn't pay for it!


    Any other comments appreciated.

    Pierre


    Feel free to visit my website, http://www.rodrigueknives.com
    Email pierre@rodrigueknives.com

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