What's going on in your shop? Show us whats going on, and talk a bit about your work!

Discussion in 'Shop Talk - BladeSmith Questions and Answers' started by WillSwift, Oct 8, 2013.

  1. WValtakis

    WValtakis Hand Engraving, Anodizing and Embellishment Knifemaker / Craftsman / Service Provider

    May 29, 2004
    To be fair, they're not THAT thick in the stock convex grind but you won't be cutting carrots with it unless you want to chase them across the kitchen. The Don is gorgeous, and I'm sure an amazing knife but frankly Rocksteads are overpriced in my opinion. The only reason I have mine is that I got a screaming deal on it...which is why I had no hesitation regrinding it.
     
  2. Natlek

    Natlek

    Jun 9, 2015
    It is 5.2 mm on spine .....and that shallow convex is what i don t like . Well they are overpriced but that Convex grind ................You will not find other knife with grind like that :)
    Two or it was three years ago in Wien , Austria someone took me to a gun shop to look at a one million euro rifle ....I saw there Shin...... I couldn't resist and I bought it .A week later when I returned to Macedonia a crazy American was waiting for me, my best friend .I show him Shin ...he ask me how much i pay for it.... . .he left the money on the table, bought me a beer and take the plane to Jersey...with my knife :D I m Leatherman guy, this one Shin was first real knife i ever buy ...:)
    It was nice to talk with you , enjoy in knive ...........now you have one of the kind :thumbsup:
     
    WValtakis likes this.
  3. CThompson

    CThompson Curt Thompson Knives Knifemaker / Craftsman / Service Provider

    94
    Feb 6, 2018
    38E8FBCA-A00E-46F1-83CF-306C2EEE46BD.jpeg
     
  4. FredyCro

    FredyCro

    544
    Jan 11, 2019
    Working on a largish AEBL gyuto. I think I nailed the distal, but thining behind the edge is taking forever. I am starting to understand why these large kitchen knives cost as much as they do.
    [​IMG]
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    Is it possible that a 60g ceramic belt lost the initial bite after two large knives? Maybe it just glazed over because of slow grinding I did on the edge?

    I will take it thinner on a 40g next time, how thin can one go on the edge with a rough grit to still have enough material to get out the scratches and small mistakes?
     
    john april likes this.
  5. Blackdirt cowboy

    Blackdirt cowboy

    217
    Oct 29, 2015
    I take my edges down to .015” with a 36 grit belt, then work to .008” with 60 and 120 grit belts prior to heat treating. After heat treating I go back to the 60 grit and then start working my way up in the grits to get to final edge thickness.
     
    FredyCro likes this.
  6. Scaniaman

    Scaniaman

    611
    Jun 15, 2012
    YES! On a knife that size, if I start with 60 grit, I'd go through 2 belts, including refreshing the grit a few times with a diamond tool. For 1 knife.
    Put on a fresh belt now and make a pass or two, and see how that feels...
     
    FredyCro likes this.
  7. FredyCro

    FredyCro

    544
    Jan 11, 2019
    Yeah, I guessed that as well, especially since I ground all Nakiri on that 60 (no 40), it's also a very cheap ceramic belt from Poland.
     
  8. FredyCro

    FredyCro

    544
    Jan 11, 2019
    You were right, the belt was dead, I changed to a new 60 and the grind was finished in 30 mins. I had to flatten the heal, correct the tip, and thin/convex the edge. All blendend in to 60 grit now, the spine at the tip measures 0.5mm.
    [​IMG]
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    john april, Natlek and Scaniaman like this.
  9. John Cahoon

    John Cahoon JWC Custom Knives Knifemaker / Craftsman / Service Provider

    834
    Apr 13, 2017
    Here's a new Kephart in NitroV, just needs sharpening and a sheath. It's a fair rendering of the original, but with a slightly leaf shaped blade. The handle is K&G stabilized and dyed Jacaranda, kinda looks like denim and it has the flared fronts like the original, narrows behind that and widens to the back. I took liberties by adding the yellowjacket G10 liners. IMG_2538.JPG IMG_2539.JPG IMG_2540.JPG
     
  10. ashwinearl

    ashwinearl

    310
    Nov 9, 2006
    mini kwaiken 8670
    [​IMG]
     
  11. chaoticmachinery

    chaoticmachinery

    22
    May 12, 2016
    I finished up my disc grinder build. I used a 2" pipe and welded a piece of 7" x 4" angle iron. This allowed me to mount a Beaumont disc grinder mounting plate (for a Baldor VM3558 motor) and then add the Beaumont adjustable work rest on top of it. I use 4 Harbor Freight trailer hitch pins to put the motor either as a vertical or horizontal disc grinder. The frame is on casters which allows me to move the grinder around the shop to get it out of the way. The setup has been very solid and doesn't vibrate or move when in use.

    Links to pics:

    http://www.michiganarmoury.com/knife/disc_vert_s.png
    http://www.michiganarmoury.com/knife/disc_hort_s.png

    [​IMG]
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    Last edited: Dec 3, 2020
    Richard Coyle likes this.
  12. Storm W

    Storm W

    572
    Feb 19, 2019
    Thos big blades are hard on belts because of the large surface area. Its tough to get enough pressure to fracture the grit. You can use a semi fresh belt to hog off material while the blade is still thick enough so the heat does get out of control. A wheel will grind much longer than the platen and can be used vertically to keep your flats. I find this is almost required for some of the more wear resistant steels. I pop on a fresh belt for that last 10% of the hogging faze. It helps me be a bit more frugal with the belts and it also helps me to change that belt to a new one instead of thinking about it 20 minutes after I start getting mistakes. :mad::poop::D
     
    FredyCro likes this.
  13. FredyCro

    FredyCro

    544
    Jan 11, 2019
    I will make sure to try out the wheel first on the next one. Its my first two blades on the new grinder so I started with a 60 instead with a 40 and was also conservative on my rpms. I am interested how the used 60g belt will do for hogging off material on the wheel. Thanks for the tips!
     
  14. Bigfattyt

    Bigfattyt Gold Member Gold Member

    Jun 23, 2007

    I sure like how that one turned out!!
     
  15. HSC ///

    HSC ///

    Nov 7, 2012
    Some recent work finished in France
    [​IMG]
     
  16. Natlek

    Natlek

    Jun 9, 2015
    If you turn the speed on max. as NEW one:D
    What Dia. drive wheel you have on grinder and what RPM is motor ?
     
  17. Natlek

    Natlek

    Jun 9, 2015
    I can t see any picture , can you do something ? I have three disk grinder and I want one of them to make it horizontal/vertical so ..........i would like to see how you do that ?
     
  18. Natlek

    Natlek

    Jun 9, 2015
    Get some 40 grit Klingspor ..................
     
    FredyCro likes this.
  19. FredyCro

    FredyCro

    544
    Jan 11, 2019
    200mm drive wheel and 2800 RPM/ 2.2 kw motor. I can double check when I am in the shop.
     
  20. Natlek

    Natlek

    Jun 9, 2015
    That s 29 m/s and with 2.2kw motor you grind half hour that knife .....:eek: Push that steel in belts harder:thumbsup:
     
    FredyCro likes this.

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