Not your every day mirror edge

Discussion in 'Maintenance, Tinkering & Embellishment' started by bluntcut, Dec 7, 2013.

  1. bluntcut

    bluntcut KnifeMaker / Craftsman / Service Provider Knifemaker / Craftsman / Service Provider

    Apr 28, 2012
    Here is a good way to waste :thumbdn: your otherwise perfect weekend :p

    Below is not a puzzle but just a curiosity, How did I put a rough mirror finish on my experimental 52100 knife. Please take a very careful look before take a stab at it.

    Nice even slightly convex bevel. The blade has 100grit AlO sandpaper scratches
    [​IMG]

    Aaaah some reflection
    [​IMG]

    something is off
    [​IMG]

    hmm something odd about the: bevel shoulder, vertical lines, horizontal lines:suspicion:
    [​IMG]
     
  2. Chris "Anagarika"

    Chris "Anagarika"

    Mar 7, 2001
    Arrrgh. The phone got cut!!! :eek:
     
  3. bluntcut

    bluntcut KnifeMaker / Craftsman / Service Provider Knifemaker / Craftsman / Service Provider

    Apr 28, 2012
    The phone + time & space continuum are intact :D
     
  4. awestib

    awestib

    Dec 29, 2008
    Hmm, not sure?
     
  5. bluntcut

    bluntcut KnifeMaker / Craftsman / Service Provider Knifemaker / Craftsman / Service Provider

    Apr 28, 2012
    Heheh before all the regular knifenuts giving up on this thread. How's about, you can achieve a full mirror down to 0.1um for any steels, almost at any angles, V & Convex bevel... AND go through the entire grit progression (160um to 0.1um) using one hand & blind folded!. OK ok, new & intermediate sharpeners may want to keep their eyes open.

    edit:

    btw - the edge above was quickly produced with sparsely incomplete grit progression 45um -> 12um -> 1um -> 0.5um -> 0.1um.
     
    Last edited: Dec 7, 2013
  6. bluntcut

    bluntcut KnifeMaker / Craftsman / Service Provider Knifemaker / Craftsman / Service Provider

    Apr 28, 2012
    A little background. About 15 months ago, my goal was to produce a good working edge (whittle wood, slice cardboard etc..) and a mirror edge as a bonus. After many tries, I failed.

    3 days ago - a subconscious 'doh, easy beerer edge :)'. Took me about 2 minutes to showed my kids - both without a doubt, told me they can produce this edge using 1 hand & blind folded too. ymvw on the result sharpness. Oh haha, my kids thought I was trolling when I first showed them this thread.

    Material cost: any where between $10 to $100, depend on steel & abrasive type+quality
    * enough for at least 100 mirror edges or into thousands if you are using bulk abrasive.

    Estimated work time to achieve mirror from 1k finished edge
    1095 @60rc: 10-15 minutes
    s30v @60rc: 15-30 minutes

    Interested? If there are enough 'yes' ...
     
    Last edited: Dec 7, 2013
  7. mycough

    mycough Basic Member Basic Member

    May 20, 2007
    Bring it on my friend! You have my attention. Russ
     
  8. kwazyjuice

    kwazyjuice

    Feb 10, 2013
    I'm lost.....
     
  9. bgentry

    bgentry

    Aug 3, 2009
    Are you using some variation of your sandbox and dragging the edge through loose abrasive media in different grades?

    Brian.
     
  10. bluntcut

    bluntcut KnifeMaker / Craftsman / Service Provider Knifemaker / Craftsman / Service Provider

    Apr 28, 2012
    Sorry for segued from a curiosity to a possibly a how-to to put mirror finish on an existing edge. Also good for quick touch up on existing mirror edge too.

    So my last question was: who's interested in able to put a mirror finish on an edge, so easy that a one handed blind person can do it too.

    No. I would cost a small fortune to buy all that abrasives in full grit progression. Beside in this scenario, the bevel shoulder and the blade will get a braded too. We don't want that for Damascus, blasted, coated, etc.. blades.
     
  11. kwazyjuice

    kwazyjuice

    Feb 10, 2013
    Yeah show me teach me :)
     
  12. Ernie1980

    Ernie1980 Gold Member Gold Member

    Apr 19, 2012
    Do share.....
     
  13. JDunn709

    JDunn709

    Jan 7, 2009
    Subscribed out of curiosity/confusion...
     
  14. matilda

    matilda

    295
    Nov 18, 2008
    Are you using lapping film with foam backing?
     
  15. ISP 5353

    ISP 5353

    411
    Sep 5, 2010
    Love to learn how you do it!
     
  16. Omega Leather Works

    Omega Leather Works

    Jun 13, 2007
    Micro mesh?
     
  17. bluntcut

    bluntcut KnifeMaker / Craftsman / Service Provider Knifemaker / Craftsman / Service Provider

    Apr 28, 2012
    Many good guesses :thumbup: but ...

    One more clue - You can mirror just upper or lower (yes, partial) part of the bevel. e.g. mirror the top 1/3 and haze the lower 2/3 or vice versa.

    I will take a picture of my 10cents sophisticated device and share later...

    edit: most of the time you can get the device for free ;)
     
    Last edited: Dec 8, 2013
  18. bluntcut

    bluntcut KnifeMaker / Craftsman / Service Provider Knifemaker / Craftsman / Service Provider

    Apr 28, 2012
    Out in the field, you can use this same technique to restore your edge. The sophisticated device best use in upside down position while using natural abrasive (um.. mud/sand/clay).

    Come on knifeknuts, pitch in your best shot :cool:
     
  19. Omega Leather Works

    Omega Leather Works

    Jun 13, 2007
    Don't reveal the answer! I just saw this a little while ago. I need to sleep on it. :D
     
  20. kodachi

    kodachi

    318
    Aug 13, 2013
    A cup?
     

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