1. Week 43of the BladeForums.com Year of Giveaways is live! Enter to win a Spyderco C243PBK Edela + Misc Prize Pack

    Click here to enter the drawing for your chance to win a Spyderco Endela + Misc Prize Pack , Bladeforums.com swag or memberships!
    Be sure to read the rules before entering, and help us decide next week's giveaway by hitting the poll in that thread!

    Entries will close at 11:59PM Saturday, Oct 26 ; winners will be drawn on Sunday @ 5pm on our Youtube Channel: TheRealBladeForums. Bonus prizes will be given during the livestream!


    Questions? Comments? Post in the discussion thread here

The "Ask Nathan a question" thread

Discussion in 'Carothers Performance Knives' started by JustinFournier, Aug 30, 2016.

  1. Lorien

    Lorien Moderator Moderator

    Dec 5, 2005
    the DEK1 MAY have both a swedge and a fuller...
     
    argyle1812 and CataD like this.
  2. PeteyTwoPointOne

    PeteyTwoPointOne Platinum Member Platinum Member

    Jun 10, 2014
    ...............
     
    Last edited: Oct 21, 2017
  3. adamlau

    adamlau

    Oct 13, 2002
    Please do implement! I have mentioned it in the past, but much of my use for a knife in home and on the job involves clearing and scraping. A swedge which preserves the primary edge for such duties is perhaps one of the most functional additions to a knife :thumbsup:
     
    mb> and JustinFournier like this.
  4. NJBillK

    NJBillK Custom Leather and Fixed Blade modifications.

    Mar 27, 2014
    Does the most recent (released) EDC and the EDC2S share handle shapes, and are the scales interchangeable?
     
    FeralGentleman likes this.
  5. adamlau

    adamlau

    Oct 13, 2002
    ^ Yes :)
     
  6. Nathan the Machinist

    Nathan the Machinist KnifeMaker / Machinist / Evil Genius Moderator Knifemaker / Craftsman / Service Provider

    Feb 13, 2007
    The scales are interchangeable, but they are not the same.
     
  7. mb>

    mb> Gold Member Gold Member

    Sep 24, 2014
    Nathan, I've been curious what the main reason is you choose to use screws vs pins on your handles? I realize there are many possible reasons. Would be interested to hear your thoughts from a makers perspective.
     
  8. Lorien

    Lorien Moderator Moderator

    Dec 5, 2005
    we'll see. With CPK, features are a slave to function.
     
  9. Nathan the Machinist

    Nathan the Machinist KnifeMaker / Machinist / Evil Genius Moderator Knifemaker / Craftsman / Service Provider

    Feb 13, 2007
    Perhaps there's a misunderstanding here, my scales are pinned. The screw heads simply serve to hold the scales down, but the pins do the locating and shear loads. You can remove the screws and the scales remain in place and are difficult to remove.

    The holes in the tang are created on a big CNC machining center. They're spotted, drilled undersized, circular interpolated CNC milled for location, then reamed to size with a carbide reamer. Their location and size are probably the most closely controlled for a fixed blade in the entire knife industry. Similar with the scales. So we need very little clearance with the pins, so we turn them down with only .001" nominal clearance. Everything is a very snug fit with 2-3 pins (depending on pattern). My scales are most definitely pinned.

    Perhaps your question is why do I use removable screws on my pins rather than permanently pien pin heads? I like to utilize texture in my scale designs.

    [​IMG]

    Grinding a pin flush to that spoils the texture.

    It started with wanting the ability to grind the scales flush to the tang, remove the scales and paint or tumble the blade and return the scales with good return matchup. But when we invested in good CNC the precision we put into the process minimizes matchup issues to the point it is no longer required to match grind a set of scales to a tang to get a good fit. <-- this opens up the ability for folks to swap scales. That was never a driving factor (though the ability to remove scales to resharpen a bare blade is) but the end result is our scales are removable and replaceable, in a large part due to the removable fasteners (rather than piened heads) we use to hold the scales down to the tang. The high precision PINS allow that. They are pinned. There are knives on the market with removable scales where the threaded fasteners don't really constrain the scales, and they can shift around in hard use. Our work is not like that.
     
  10. mb>

    mb> Gold Member Gold Member

    Sep 24, 2014
    Thanks for the education! Wow.
     
    MarriedTheMedic likes this.
  11. Casinostocks

    Casinostocks Factotum Platinum Member

    Mar 20, 2016
    ^ thank you for the detailed explanation and based on that piece above, I will be less likely to mock about with my scales which you (plural) QC over there before you finalize the orders to ship out.
     
    MarriedTheMedic and Brian77 like this.
  12. PeteyTwoPointOne

    PeteyTwoPointOne Platinum Member Platinum Member

    Jun 10, 2014
    Thanks Cartothers crew for making them interchangeable! :thumbsup: Us ELU's really appreciate that! :D

    It's a bit of stretch, but I'd say the ability to interchange handles could be considered a functional concern. As you've detailed before for us on this sub, some materials provide more grip-- which is usually a good thing on a knife, but can raise hot spots and blisters on other occasions.

    And sometimes an ELU may prefer a more impermeable material for gutting/cleaning, kitchen duty, etc. Those materials are usually a bit more forgiving as far as blistering goes also-- at least in short sessions of use.

    So handle versatility can be considered a knife option...especially with a design like the NASK by @Lorien which has a "one knife option" vibe underpinning it ... I've preordered a TeroTuf NASK and I've already purchased an additional buffed set of handles for these very reasons of versatility.

    Piggybacking on this idea:
    @Jo the Machinist ... what kind of handles do you run on your race knife? Sorry if this has already been answered somewhere else...I follow you guys pretty closely, but I haven't reached stalker level....YET! <cue the Psycho music> :eek::eek::eek: :p
     
    Last edited: Oct 22, 2017
    MarriedTheMedic and Brian77 like this.
  13. JJ_Colt45

    JJ_Colt45 Gold Member Gold Member

    Sep 11, 2014
    That's the first truely simple and straight forward answer about pins and screws I've see from any maker ... and it makes alot of sense to me.

    And even though I love wood ... and may sometime try to get a very skilled individual to dress up one of my EDCs with some nice wood ... your answer explains why the knives feel like they are carved as one piece from a magical source ... which I still in the back of my mind wonder if you haven't outbid Santa for his elves labor to perfect it all.
     
  14. Shark01

    Shark01 Gold Member Gold Member

    776
    Jan 14, 2015
    Nathan thanks for the detailed and informative answers to many of the questions that are asked here. I’ve learned quite a bit and am always impressed with the detail and workmanship involved in each of your blades. You truly are a master craftsman.
     
    Benson X, Packerrat, Brian77 and 3 others like this.
  15. gusbuster

    gusbuster Gold Member Gold Member

    Aug 30, 2011
    Thanks for making them interchangeable Nathan! :thumbsup:
    [​IMG]
    [​IMG]
     
  16. Lorien

    Lorien Moderator Moderator

    Dec 5, 2005
    Nate- I just have to say that I really loved your rap on pins and fasteners. You have a great way with words when it comes to describing technical things. I've learned a lot from you over the years, so thanks!
     
  17. Nathan the Machinist

    Nathan the Machinist KnifeMaker / Machinist / Evil Genius Moderator Knifemaker / Craftsman / Service Provider

    Feb 13, 2007
    :thumbsup:

    Likewise Lorien.

    #bromance :D
     
  18. Jo the Machinist

    Jo the Machinist KnifeMaker / Craftsman / Service Provider Knifemaker / Craftsman / Service Provider

    Nov 17, 2015
    Hey Ron! My scales are made from TeroTuf and rubber.
     
    MarriedTheMedic and Mike157 like this.
  19. Casinostocks

    Casinostocks Factotum Platinum Member

    Mar 20, 2016
    Oh Lawd! I hope @adamlau doesn't see this post :D
     
    Mike157 likes this.
  20. adamlau

    adamlau

    Oct 13, 2002
    lol...Rubber? That sounds awesome! I have always been a fan of Winkler recyled rubber handles. TT + rubber? As in a rubber liner? Or sections of TT coupled with sections of rubber? I’ll take it either way! Any plans for a limited run of this?
     
    Mike157 likes this.

Share This Page