For Newbies who might be wondering - How do MFRS put edges on knives

Discussion in 'General Knife Discussion' started by Scott Hemleben, Mar 4, 2020.

  1. Scott Hemleben

    Scott Hemleben

    39
    Feb 29, 2020
    I know seasoned Bladeformers probably already know this, but some of us curious newcomers might be at a loss as to how the makers get such "perfect" edge grinds. I found a video that shows just how it's done at Spyderco:



    Fast forward to 7:25 to see how it's done :)
     
  2. ruddyduck

    ruddyduck Gold Member Gold Member

    45
    Dec 30, 2019
    I need that sharpening robot at my house. I don't know where I'd put it, but I need it.
     
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  3. soc_monki

    soc_monki Basic Member Basic Member

    942
    Apr 5, 2019
    And for all I know, and all the research I've done, spyderco is the only manufacturer to use a robot. Imo zero tolerance and Kershaw need one, although their edges have been better recently. I've seen some pretty terrible ones come from KAI though...
     
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  4. Tony_A

    Tony_A

    597
    Sep 14, 2004
    FWIW, Leatherman sharpens their stuff by machine as well--using what looks like the exact same model machine that Spyderco uses.
     
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  5. soc_monki

    soc_monki Basic Member Basic Member

    942
    Apr 5, 2019
    An abb robot and plc? Probably because abb had already done it with spyderco and had programs and procedures in place. I installed a LOT of robots and plcs when I worked at Toyota. There's always tweaking needed, but having something to start with makes its orders of magnitude easier!
     
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  6. Scott Hemleben

    Scott Hemleben

    39
    Feb 29, 2020
    I'm kind of surprised that more of the big name makers don't use robots to sharpen. Seems it would be cheaper, faster, and more consistent.
     
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  7. Filthyj24

    Filthyj24

    236
    Jan 5, 2016
    I can't be the only one who wasn't thinking the OP meant MANUFACTURERS until I opened the thread...
     
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  8. Scott Hemleben

    Scott Hemleben

    39
    Feb 29, 2020
    My bad. I should have written Mfr. Rookie mistake. But what did you think about the Spyderco robot? Cool? Not cool?
     
  9. Filthyj24

    Filthyj24

    236
    Jan 5, 2016
    I think it's a pretty slick MFR.
     
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  10. peppercorn

    peppercorn Regular Dude Gold Member

    Jan 31, 2009

    LMAO!
     
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  11. halden.doerge

    halden.doerge I'll Sharpen Your Knife Gold Member

    Aug 17, 2014
    I just assumed it was a question directed at me personally until I started reading the thread...
     
  12. Scott Hemleben

    Scott Hemleben

    39
    Feb 29, 2020
    Actually it was directed at you. I hoped I'd garner a response. Now that you're here please give us your thoughts?
     
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  13. halden.doerge

    halden.doerge I'll Sharpen Your Knife Gold Member

    Aug 17, 2014
    Well, this MFR right here likes to put edges on using the Wicked Edge. :D

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  14. Scott Hemleben

    Scott Hemleben

    39
    Feb 29, 2020
    Beautiful edges. Can't argue with that. Thanks for sharing :)
     
  15. Korean Hog

    Korean Hog Gold Member Gold Member

    Mar 12, 2017
    I just caught on to that fact myself, for a second I thought he was just getting really fed up with the factory edges.
     
  16. marrenmiller

    marrenmiller Basic Member Basic Member

    Apr 6, 2017
    This is sort of a funny thread to me, because aside from Spyderco and maybe a handful of other small companies, most big knife OEMs put out awful edges that are obtuse, uneven, dull, and/or heat damaged with alarming regularity.

    Mad respect to Spyderco for using robots that deliver consistent and acute edges, but I wish Benchmade and KAI would learn that these things exist.
     
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  17. sabre cat

    sabre cat Basic Member Basic Member

    Jul 4, 2014
    IIRC, I have seen a video of CRKT
    using a machine to sharpen their products as well.
     
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