Gallery - Re-Handles

Discussion in 'JapaneseKnifeSharpening / Dave Martell Knives' started by Dave Martell, Mar 3, 2011.

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  1. May 16, 2017 #751

    valgard

    valgard

    valgard

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    That looks great! Happy for Tanner too.
     
  2. May 16, 2017 #752

    labor of love

    labor of love

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    I want to find a yo handled knife that I like just so I can get a Dave rehandle job on it!
     
  3. May 16, 2017 #753

    Dave Martell

    Dave Martell

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    Thank you all for the kind comments. :)
     
  4. May 16, 2017 #754

    Dave Martell

    Dave Martell

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    I now feel a whole lot better about what to expect from the suji and petty and can't wait to get back to them. Thanks for being so patient with me Tanner.
     
  5. May 16, 2017 #755

    aboynamedsuita

    aboynamedsuita

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    Can't wait to see those ones, I think that wood will look pretty good :D
     
  6. May 16, 2017 #756

    CB1968

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    Beautiful work as always Dave
     
  7. May 16, 2017 #757

    Dave Martell

    Dave Martell

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    Thanks David
     
  8. May 16, 2017 #758

    ThEoRy

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    So, it looks like the wood starts out rounded at the bolster but as it tapers out towards the back it transitions into an octagon. That does not look like it's an easy thing to accomplish. Care to elaborate on the reason behind taking this approach and the process to complete it?
     
  9. May 16, 2017 #759

    aboynamedsuita

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    Dave will have to comment on the technical/procedural part, but I had thought if this to be similar to the Takamura Hana
    [​IMG]
     
  10. May 16, 2017 #760

    Dave Martell

    Dave Martell

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    Rick, you're correct in all assumptions!

    Why? I'm not sure I recall exactly why we went in this direction but I know that there were a few turns along the way that needed to be made. Tanner and I worked together to come up with the end result.

    How?

    The first thing to do is to grind away the full tang leaving behind only the bolster and partial stick tang. This isn't a tough thing to do really, just takes a coarse grinding belt and some pressure, and there you have it. What is tricky is to not grind into the bolster -that's where things get hairy.

    I see some not-so-perfect bolsters often and so I've come up with a way to deal with them - I use a large file guide (the type that has carbide inserts that can be used on a grinder) clamped to the bolsters and simply grind away until flush with the guide. This works well because most all Japanese knife bolsters are pretty flat/square on at least the top and bottom. In this particular case we're dealing with not-your-average bolsters though - they're slanted, uneven, and basically not square in any direction. So, upon tightening down the file guide screws I broke a carbide insert as I was asking the guide to contort to the uneven bolster shape (yeah - very stupid of me) that it wasn't designed to do - snap!

    From then on I was forced to free hand the back side of the bolsters to make the newly ground down tang flush as well as even out the whole thing. This is the point where things usually go down hill fast - BUT - not this time, I got lucky. :)

    Then I had to angle the front of the (wood) block to match the angle of the rear of the bolster, it wasn't a 90 deg sort of thing as is normal. I just did a best guess here. The mission was to make the handle sit correctly in plane with the blade, not handle up nor down.


    As for making the handle, I chose to make it completely in the octagonal wa shape right to the finest grit and even wet sanded too, all before mounting it. Fortunately I realized beforehand that the key to this whole thing working is to properly size the handle. If you leave it too large you won't be able to blend to the bolster and too small will look stupid. It really has to be just right before mounting, you need to picture the whole thing being finished in your head, all the steps, before glue up or you might just screw up....ha - I made a rhyme. :D

    Once the glue is dry the it's just a matter of grinding the wood down to the bolsters and blending it into the octagonal shape. This part was actually quite enjoyable to me but I bet that a few years back I may have been cursing then.

    Few coats of drying oil and there you have have it.
     
  11. May 17, 2017 #761

    Dave Martell

    Dave Martell

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    Here's a good picture for showing the transition from octagonal to western bolster shape....

    P1010014.JPG
     
  12. May 17, 2017 #762

    Benuser

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  13. May 17, 2017 #763

    Godslayer

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    That'll do, I have two of the uchigumos and I can say if it wasn't for the fact I actually like the black pakkawood handle I would be all over this, it looks stunning, the spacers up front are a nice touch of class and keep a fairly simple handle design allowing the blade to keep it's balanced feel, i.e. the blade is still the star, which is important, how did the wa conversion affect the blades balance? Also integral bolsters and wa handles are super sick. Keep up the good work dave and maybe someday I'll send you my blades and a chunk of mammoth :razz:
     
  14. May 17, 2017 #764

    aboynamedsuita

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    You can try this one out sometime, maybe the suji too :p

    We need to try and have a Canadian get together at some point.
     
  15. May 17, 2017 #765

    Godslayer

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    You know I have the knives and calgary has a few solid members, off topic but my tamahagane honyaki yanagiba ships tmr from the land of hentai and moonspeak, the gyuto ships end of june and I bought a masakage yuki two days ago for my mother lol. I almost regret not buying that hana suji but I never use one and already own two lol. I can't wait to see what the petty and suji come out as, I've waited a long time to see them come to fruition, as this is your time, the week/weeks of tj
     
  16. May 17, 2017 #766

    valgard

    valgard

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    I'm all for this, I hope it is sometime soon :doublethumbsup:. If it is organized with enough time and the timing is right I could bring a couple of bottles of Cuban rum and cigars :wink:.
     
  17. May 17, 2017 #767

    inzite

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    calgary! sounds far! :p
     
  18. May 18, 2017 #768

    El Pescador

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    Someday I'll see pictures of my knives on here. Someday :biggrin:
     
  19. Jul 16, 2017 #769

    Dave Martell

    Dave Martell

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    Here is Tanner's Takamura set with their new wa hybrid handles. The woods used are (from top to bottom) - Norfolk Pine, Hawaiian Mango, & Hawaiian Koa.

    See this post & this post for details on what was done.

    Thanks for sticking with me through this project Tanner. I hope these put a smile on your face. :wink:

    Takamura_comparison2.jpg

    P1010008.JPG

    P1010013.JPG

    P1010014.JPG

    P1010016.JPG

    P1010018.JPG

    P1010019.JPG

    P1010026.JPG
     
  20. Jul 16, 2017 #770

    aboynamedsuita

    aboynamedsuita

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    My babies, they're beautiful! Thanks Dave! Can't wait to see the handles in person.
     
  21. Jul 17, 2017 #771

    42537703

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    :bigeek:
     
  22. Jul 17, 2017 #772

    Dave Martell

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    Your "babies" LOL :D

    I'm happy that you like them T.
     
  23. Jul 17, 2017 #773

    Nemo

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    Wow, beautiful.

    I didn't know Norfolk pine could look so nice.
     
  24. Jul 17, 2017 #774

    TheCaptain

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    +1. I would never have thought to use pine in a handle until now.
     
  25. Jul 18, 2017 #775

    Dave Martell

    Dave Martell

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    That's Stefan's influence right there.
     
  26. Jul 18, 2017 #776

    aboynamedsuita

    aboynamedsuita

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    Stefan's Norfolk pine handle is what interested me in using. All 3 handles follow a Hawaiian wood theme
     
  27. Jul 18, 2017 #777

    Nemo

    Nemo

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    Does Norfolk pine grow in Hawaii?

    My understanding is that it's native to Norfolk Island, about 1500km off the East coast of Australia.

    Historical side note: The British Empire sent convicts there in the 1800s to harvest the straight tall trunks for ship masts but they weren't strong enough for this use.

    I assume that it behaves like a softwood?
     
  28. Jul 18, 2017 #778

    Dave Martell

    Dave Martell

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    If they're not all Hawaiian woods then we're calling them "Pacific" themed. :D
     
  29. Jul 18, 2017 #779

    Nemo

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    That would work.
     
  30. Jul 18, 2017 #780

    aboynamedsuita

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    I did some cursory research and it seems like Norfolk Pine and Cook Pine may both be on Hawaii (?), with cook Pine being the more common of the two. Apparently they often get called Norfolk Pine by default. Either way it looks neat, can't wait to see in person
     
    Last edited: Jul 18, 2017

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